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China GUANGDONG HWASHI TECHNOLOGY INC.
GUANGDONG HWASHI TECHNOLOGY INC.
ABOUT USGuangdong Hwashi Technology Inc. was established in 2001 whose registered capital is RMB 10.309 million.Hwashi has two production bases in Huizhou, Guangdong Province and Gaoan, Jiangxi Province, coveringa total area of 50,000 square meters. Several branches were set up in Hong Kong, Shenzhen, Shanghai,Wenzhou, etc. Hwashi is the leading company in welding industry in China and has been awarded the famousbrand for years. Hwashi welding machines are selling to more than 70 countries like ...
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quality Spot Welding Machine & Wire Mesh Welding Machine factory

Capacitive Discharge Spot Welder

Product Name:WL-CD-25K Capacitor Discharge Welding Machine For Nonstick Wok Handle

Application:Welding For Non-Stick Wok Handle

Size:900mmX1500mmX1850mm

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50/75/100KVA Sheet Metal Welder for Plate and Sheet Metal Spot Welding Precision Video

50/75/100KVA Sheet Metal Welder for Plate and Sheet Metal Spot Welding Precision

Product Name:Sheet Metal Double-Position Crank-Arm Movable Table Spot Welding Machine

Application:Welding For Sheet Metal

Rated Power:50/75/100KVA

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Medium Frequency DC Welding Machine , Spot Welding Machine 10kva CE/CCC/ISO Standard Video

Medium Frequency DC Welding Machine , Spot Welding Machine 10kva CE/CCC/ISO Standard

Product Name:1000Hz Medium Frequency Spot Welding Machine , Aluminum Steel DC Spot Welder

Application:Welding For Aluminum And Copper Products

Size:480x900x1600*mm

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Automatic Glass Lid Steel Belt Spot Welding Machine With DC Power Machine Video

Automatic Glass Lid Steel Belt Spot Welding Machine With DC Power Machine

Product Name:Automatic Glass Lid Steel Belt Spot Welding Machine With DC Power

Size:950mm*800mm*1675mm

Application:Welding Of Stainless Steel,steel Belt. Steel Strip. Cookware

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WHAT CUSTOMERS SAYS
Mr. Ricardo
2024-03-26 16:48:48
HWASHI is a very reliable supplier. They offered us the full automatic line for making IBC cage frame. Including the frame welding line, leakage testing and stacking process. Their proposal is very impressive and professional. So we placed the order only within 2 weeks of discussion. Now we placed 3 more line. Total value about 3 million US dollars
Mr. Lalit
2023-07-26 16:36:59
Hwashi is one of the best supplier that we are having. Always giving 100% support to us. We will consider to ask them to design the full automatic production line of RMU product for us. We need highest level of automation.
Ms. Sevim
2023-07-26 16:40:11
We are Turkish company and we purchased the square tube IBC frame production line from Hwashi in 2023. We searched many companies in China and finally decided to choose Hwashi because they got professional team and best technical service. We feel rest assure by cooperating with them.
Mr. Mikhail
2023-07-26 16:44:08
We are from Russia. And our company start cooperation with Hwashi since 2018. Every year we will buy new machines from Hwashi. And they always helped us to develop customized machine to make new products. Now almost 90% of our machines are from Hwashi made. This is a great company.
Mr. Wong
2023-07-26 17:03:38
Our factory is located in Australia. Before knowing Hwashi, we never used Chinese machine. All our machines are from Italy or European countries. Last year we tried the first Chinese made automatic mesh welding machine from Hwashi. It runs perfectly and stable. So this year we placed the second order with total value Euro 746000.
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Be Our Guest at Weldex Exhibition 2023 - Hwashi Invites You!
Be Our Guest at Weldex Exhibition 2023 - Hwashi Invites You!
Be Our Guest at Weldex Exhibition 2023 - Hwashi Invites You!   Weldex 2023, Connect to the Future! Date: October 10-13, 2023 Location: Crocus Expo International Exhibition Center, Pavilion 1, Hall 4, 65-66 km Moscow City Ring (MKAD), Moscow, Russia, Booth A3111. Explore welding and cutting technologies from around the globe—all in one place! We're bringing the latest innovations. Step into the future of welding and cutting! Visit us at the #Weldex Exhibition to discover cutting-edge technologies and innovations. We're looking forward to connecting, sharing, and collaborating with you at the event. Step into the future—start here! Learn more: 【 https://weldex.ru/en/visit/visitor-registration/】 Please input the visitor code( Promocode):“ wlx23eAOHC ” for free registration. #Weldex2023 #MoscowExpo #WeldingCutting HWASHI TECHNOLOGY (HONG KONG) CO.,LTD  
2023-09-23
Hwashi experts will explain why the projection welding nut is incorrect welded
Hwashi experts will explain why the projection welding nut is incorrect welded
Hwashi experts will explain why the projection welding nut is incorrectly welded.   There are two reasons for the virtual welding process and power supply.One is the process, nut projection welding needs to adopt a hard standard process, that is, a short time, large current, the projection or projection boss in the moment of power in the contact area to generate huge heat, and the plate to generate an effective solid phase connection;Two is the power supply, DC spot welding machine has higher thermal efficiency and better bunching effect, so that the projection spot or boss is easier to form a connection with the plate, especially the capacitor energy storage projection welding machine, in a very short time to release huge energy, is a better choice of projection welding.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2022-09-30
Hwashi teaches you how to achieve spot welding of high-strength
Hwashi teaches you how to achieve spot welding of high-strength
Hwashi teaches you how to achieve spot welding of high-strength and thermoforming plates   High-strength plate, thermoforming plate because of its high hardness, and the surface generally has a coating, so that it is very easy to produce splashes, cracks and extrusions in spot welding, so welding such products need to be adjusted process and equipment, first, the process, the need to choose soft specification welding, and the use of greater welding pressure, which can reduce the production of splashes, and avoid welding cracks; Second, welding equipment, spot welding equipment needs to have a variety of working modes, in the initial use of constant pressure mode, can make high-strength plate softening and full contact, and will not be due to excessive peak caused by splashing, the medium-term use of constant current mode can make the fusion core fully grow, later to give a smaller current can reduce the generation of cracks and other defects, such as the use of mixed control mode inverter point bump welding machine.     Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.    
2022-09-30
Hwashi teaches you how to achieve spot welding of high-strength
Hwashi teaches you how to achieve spot welding of high-strength
Hwashi teaches you how to achieve spot welding of high-strength and thermoforming plates   High-strength plate, thermoforming plate because of its high hardness, and the surface generally has a coating, so that it is very easy to produce splashes, cracks and extrusions in spot welding, so welding such products need to be adjusted process and equipment, first, the process, the need to choose soft specification welding, and the use of greater welding pressure, which can reduce the production of splashes, and avoid welding cracks; Second, welding equipment, spot welding equipment needs to have a variety of working modes, in the initial use of constant pressure mode, can make high-strength plate softening and full contact, and will not be due to excessive peak caused by splashing, the medium-term use of constant current mode can make the fusion core fully grow, later to give a smaller current can reduce the generation of cracks and other defects, such as the use of mixed control mode inverter point bump welding machine.     Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.    
2022-09-30
What is the reason for the rapid wear of electrodes?
What is the reason for the rapid wear of electrodes?
What is the reason for the rapid wear of electrodes? Hwashi answers for you There are three main causes of welding electrode wear: One is the choice of electrode material. Electrode materials need to be replaced according to different welding products. When welding low-carbon steel plates, chrome copper is used because of the use of chromium palladium copper. The softening temperature and conductivity are relatively moderate, which can meet the welding requirements of low carbon steel. Palladium cobalt copper is used for spot welding of stainless steel, mainly palladium cobalt copper, with a high hardness. Alumina dispersed copper is used in the welding of galvanized plates, mainly due to their high hardness. The composition of alumina is not easy to form adhesion with the zinc layer reaction, and the softening temperature and conductivity are relatively high. Dispersed copper is also ideal for welding other materials. The second is the effect of water cooling, welding area in the welding process will be a large amount of heat conduction to the electrode, better water cooling effect can effectively reduce the temperature rise and deformation of the electrode, thereby slowing down the speed to reduce the wear of the electrode. The third is the electrode structure, which should be designed to match the workpiece as much as possible. Increasing the diameter of the electrode and reducing the extended length of the electrode reduces the temperature increase caused by the heat generated by the electrode's own resistance. Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2022-09-30
Hwashi mid-frequency spot welder anti-electric tips
Hwashi mid-frequency spot welder anti-electric tips
Hwashi mid-frequency spot welder anti-electric tips   Welding machine series products all use electricity, medium frequency spot welding machine is certainly no exception. Seismic measures are particularly important in the process of using electricity. So, how to prevent the mid-frequency spot welder from being electrocuted? Next, Hwashi editors will give you some considerations for using automatic spot welders.   First of all, the welding clamp insulation of the medium frequency spot welder must be reliable. The use of shellless welding pliers is strictly prohibited to avoid accidents. This is Guangdong Hwashi Technology INC. automatic medium frequency spot welding machine, as well as other series of spot welding machines in front of the factory have been strictly checked. At the same time, the housing of the automatic mid-frequency spot welder must be grounded. The purpose of grounding is to prevent the spot welder from accidentally touching the housing and causing live injury. It is essential in all cases. The ground body of automatic spot welder can be widely used in naturally grounded electrodes, such as water pipes, metal structures of reliably grounded buildings, etc. However, the use of flammable and explosive pipes as materials for natural ground bodies is strictly prohibited. If the resistance of the natural ground electrode exceeds 4o, it is best to use an artificial ground body, as this may result in an electric shock accident or even a fire. If you want to move the automatic spot welder, you must cut off the power supply. Do not move the spot welder by pulling the cable. If you experience a sudden power failure, cut off the power immediately to prevent a sudden electric shock.   Another thing raised is that construction workers should also take good measures to prevent electricity. Gloves must be worn when replacing the welding rod. If clothes are soaked in sweat, they are not allowed to lean against metal objects. Prevent electric shock. If the mid-frequency spot welder is to be serviced, the power switch must be switched off and there must be a clear disconnect gap, followed by a pen check to ensure that the power supply has been cut off before service begins.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2022-09-30
Why are The Hwashi MID-Frequency Spot Welders So Superior?
Why are The Hwashi MID-Frequency Spot Welders So Superior?
Why are The Hwashi MID-Frequency Spot Welders So Superior?   The medium frequency spot welder is the world's most advanced resistance welding products. As a professional research and development manufacturer of medium frequency inverter spot welding machine, Guangdong Hwashi Technology INC. also relies on its strong technical team and strong asset strength to convert the inverter point of the medium frequency. The superior performance of the welding machine is fully realized.   1) The transformer of the medium frequency spot welder is light in weight, small in size and low in input power, so it is very convenient to use the welding gun connected by the transformer. When the traditional frequency welding machine is used in the automatic production line, it is necessary for the robot to have a very strong load capacity, and the transformer of the medium frequency inverter spot welder can greatly reduce the burden of the robot.   2) The welding current of the medium frequency spot welder is rectangular wave, close to DC, so there is no obvious peak current, the size of the melting core is stable and expanded, almost no splash, welding quality is stable, high thermal efficiency. Compared with industrial inverter welding machines, mid-frequency inverter spot welders can reduce welding current by 40%, greatly extending the life of electrodes.   3) Medium frequency spot welders are suitable for welding a variety of materials and exotic metals, such as aluminum alloys, stainless steel, high-strength steel plates and other materials. In addition, for galvanized plate and ordinary multi-layer plate welding, the welding quality is much higher than that of the frequency welding machine.   4) The medium frequency spot welder has the characteristics of three-phase load balancing, the power factor can be as high as 0.9 or higher.   5) The current of the mid-frequency spot welder can reach the set value more quickly, and the parameters can be analyzed more accurately. The response speed is only 5% of the frequency AC spot welder, and the welding quality control is more precise.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.    
2022-09-23
Introduce the principle of intermediate frequency inverter spot welder
Introduce the principle of intermediate frequency inverter spot welder
Hwashi experts introduce the principle and application of intermediate frequency inverter spot welder   The medium frequency inverter DC spot welder is a device that converts three-phase AC rectifier into pulsation DC, and then converts it into medium frequency square wave through an inverter circuit composed of power switching devices, which is connected to the transformer Buck DC resistance welding equipment for welding workpieces, rectifier into a small pulsating DC power supply electrode, is one of the most advanced resistance welding methods today.   The medium frequency inverter DC spot welder can be used for spot and multi-spot welding of ordinary low-carbon steel plates, stainless steel plates, galvanized plates, aluminum plates, wire and high-strength steels. Thermoformed steel in the automotive industry. Spot and nut projection welding in the high and low voltage electrical industry, as well as resistance brazing and spot welding of copper wires, brazing of silver and copper plates, and composite silver spot welding.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2022-09-23
What is the selection of spot welding electrode materials?
What is the selection of spot welding electrode materials?
What is the selection of spot welding electrode materials ? The Hwashi expert tells you!   In the production of resistive welding, welding parts of different materials and shapes need to be equipped with welding rods of different materials and shapes. The electrodes have an effect of more than 50% on the quality of the welding during continuous welding. Select the suitable welding material and electrode for welding. Quality is important!   1. Chromium zirconium copper   CuCrZr is the most commonly used resistance welding electrode material due to its excellent chemical and physical properties and depends on good price/performance ratio.   1. The chromium zirconium copper electrode has reached a good balance on the four performance indicators of the welding electrode:   Excellent electrical conductivity -- minimum impedance of the welding circuit is guaranteed, and excellent welding quality is obtained. High temperature mechanical properties -- the high softening temperature ensures the performance and life of the electrode material in the high temperature welding environment. Wear resistance -- electrode is not easy to wear, prolong life and reduce cost Higher hardness and strength -- to ensure that the electrode head under a certain pressure is not easy to deform and crush, and to ensure the welding quality   2. Electrodes are consumables for industrial production.The quantity is relatively large, so its price cost is also an important factor to consider.Because the chromium zirconium copper electrode performance is better, the price is relatively cheap, can meet the production needs.   3. The chromium zirconium copper electrode is suitable for spot welding and projection welding of carbon steel plate, stainless steel plate, coated plate and other parts.Chromium-zirconium copper material is suitable for the manufacture of electrode caps, electrode connecting rods, electrode heads and electrode supports.Electrode parts, such as rod, special electrode for projection welding, seam welding wheel, contact tip, etc.   The standard electrode head, electrode cap and heteroelectrode produced by cold extrusion technology and precision machining to further improve the performance of the density products, the product performance is more excellent, durable, welding quality is guaranteed.   2. Beryllium Copper (BeCu)   Compared with chromium-zirconium copper, beryllium copper (BeCu) electrode material has higher hardness (up to HRB95 ~ 104) and strength (up to 600 ~ 700MPa/N /mm²) and softening temperature (up to 650℃), but its electrical conductivity is much lower and poor.   Beryllium copper (BeCu) electrode material is suitable for welding high pressure plate, and harder materials, such as seam welding wheel;It is also used for some electrode accessories with high strength requirements, such as crank electrode connecting rod, robot converter;At the same time, it has good elasticity and thermal conductivity, very suitable for manufacturing nut welding chuck.   Beryllium copper (BeCu) electrode has a higher cost and is usually listed as a special electrode material.   3. Alumina copper (CuAl2O3)   Alumina copper (CuAl2O3) is also known as dispersion strengthened copper.Compared with chromium zirconium copper, it has excellent high temperature mechanical properties (softening temperature up to 900℃), high strength (up to 460 ~ 580MPa/N /mm²) and good electrical conductivity (conductivity 80 ~ 85IACS %), good wear resistance, strong resistance, long life.   Alumina copper (CuAl2 O3) is a kind of excellent performance of the electrode material, regardless of its strength and softening temperature, electrical conductivity is very superior, especially for welding galvanized sheet (electrolytic plate), it won't produce the chromium zirconium copper electrode, such as electrode stick on the parts without frequent burnish, effectively solves the problem of welding galvanized sheet, improve the efficiency,Reduce the production cost.   Alumina copper electrode has excellent welding properties, but it is currently very expensive, so it is not widely used.With the wide application of galvanized sheet at present, the excellent welding property of aluminum oxide copper on galvanized sheet makes its market prospect very broad.   Alumina copper electrode is suitable for welding parts, such as galvanized sheet, hot formed steel, high strength steel, aluminum products, high carbon steel plate, stainless steel plate, etc.   4. Tungsten (W), Molybdenum (Mo)   Tungsten electrode materials include pure Tungsten, tungsten-based high-density alloy and tungsten-copper alloy. Tungsten-based high-density alloy is a small amount of tungsten-nickel-iron or nickel-copper sintered tungsten-copper composite material (tungsten-copper) containing 10% to 40% (weight ratio) of copper.   Molybdenum tungsten and molybdenum electrodes are characterized by high hardness, high combustion point and excellent high temperature performance.They are suitable for welding non-ferrous metals, such as copper, aluminum, nickel, etc., such as copper woven fabric and metal chip welding for switching, silver spot welding, etc.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2022-09-23
why intermediate frequency welding machine better in the automotive industry?
why intermediate frequency welding machine better in the automotive industry?
The Hwashi experts will answer your question, why is the intermediate frequency welding machine better than the AC welding machine in the automotive industry? With the rapid development of automobile industry, the safety of body structure and the use of new materials bring new challenges to the welding process of body.For the welding of coated steel plate, adhesive steel plate, multi-layer plate and steel plate of different materials, the traditional AC spot welding machine is difficult to meet the welding requirements, and the emergence of a variety of advanced welding technology and welding equipment requirements of the era, such as intermediate frequency inverter welding machine, capacitor energy storage welding machine, etc.   Artistic creation and craft have always been inseparable.As an industrial technology, the emergence of welding has met the need for new technical methods in the development of metal art.On the other hand, the unique and wonderful changes of metal under the action of welding heat also meet the demand of metal art for a new artistic expression language.In today's metal art creation, welding is expressed as a unique language of artistic expression.Metal welding art can be regarded as a relatively independent art form, separated from traditional metal art in a branching way, because welding is artistic.Welding can produce a rich language of expression for artistic creation.Welding is usually done at high temperatures, and the metal at high temperatures produces many wonderful and rich changes.Metal substrate will undergo color change and thermal deformation (i.e., welding heat affected zone);When the wire is melted, it forms some beautiful textures.Welding defects are commonly used in the welding field.Welding defect refers to the defect that does not meet the design or technological requirements of the welded joint in the welding process.Its performance mainly includes welding crack, porosity, bite edge, incomplete penetration, incomplete fusion, slag inclusion, welding projection, collapse, pit, burn through, inclusion, etc.This is a very interesting phenomenon: welding in today's metal art creation is often reflected in the failure of certain industrial welding operations or certain welding defects that industrial welding tries to avoid.   As a kind of DC resistance welding, intermediate frequency inverter spot welding machine has obvious advantages: wide welding process, fast heating, stable welding, energy saving and so on.These advantages are mainly due to its output current.In fact, the whole performance of the intermediate frequency spot welder is inseparable from the improvement and upgrade of the pressure method.Resistance welding machine is a kind of pressure welding, so pressure is one of the key to achieve different welding results and quality!   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.    
2022-09-23
Hwashi experts decipher pressure mode of spot welder for you
Hwashi experts decipher pressure mode of spot welder for you
Hwashi experts decipher pressure mode of spot welder for you   Resistance welding is composed of power supply, electrode, pressure mechanism and control system.The electrodes are made of a high-strength copper alloy whose interior is cooled with water.The pressure mechanism is basically pneumatic or hydraulic mechanism.Determine the control system according to the required weld quality.Use AC welding machine, inverter DC welding machine, intermediate frequency welding machine, energy storage welding machine, butt welding machine, flash welding machine and other equipment.Resistance welding machine is mainly used for all kinds of metal materials.   The method of welding by applying pressure to the electrode and welding using the resistance heat generated by the current flowing through the contact point is also known as contact welding. There are four types of resistive welding: spot welding, projection welding, seam welding and butt welding. Resistance welding is highly productive and easy to mechanize and automate, but the required welding machines are complex and power-intensive, mainly for mass production.   At present, the pressure mode of resistance welding machine is mainly cylinder, the biggest advantage is low cost, stable operation, good instantaneous following, convenient adjustment, etc., as resistance welding pressure, the cylinder diameter is generally not more than 300mm, the maximum pressure is less than 35000N, the need for greater pressure to do multi-point projection welding, you need to use the cylinder.   In a welding cycle, the formation process of the fusion core of different periods actually need different pressure, such as the initial pre-pressure is small, power pressure increased, late forging pressure is increased, and this pressure conversion requirements are very rapid, such a high demand cylinder pressure is difficult to achieve, then the need for servo pressure way!   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2022-09-23
Recommend the benefits of servo-driven intermediate frequency spot welder to you
Recommend the benefits of servo-driven intermediate frequency spot welder to you
Hwashi experts recommend the benefits of servo - driven intermediate frequency spot welder to you     The servo pressure intermediate frequency spot welder can realize the rapid conversion of various pressures and realize the closed-loop control of real-time self-checking pressure.The welding effect is more perfect, stable, more suitable for military industry, aerospace, titanium alloy and other high quality parts welding.Aluminum alloy, dissimilar metals, etc.   In order to ensure productivity and process quality, in addition to high positioning accuracy, good rapid response characteristics are required, i.e. the response of the tracking command signal is faster because the CNC system is starting and braking. At that time, acceleration and deceleration must be large enough to shorten the transition time of the feed system and reduce the contour transition error. Therefore, for the accuracy of work in various industries, our industrial automation also uses servo-driven pressure to ensure higher accuracy of medium-frequency welders, energy storage welders, AC welders, butt welders and other equipment. At present, mainstream servo drivers are DSP as the control core, can achieve more complex control algorithms, digital, networking and intelligent. Power devices typically use drive circuits with intelligent power modules (IPM) at their core. The drive circuit is integrated into the IPM and has fault detection and protection circuitry such as overvoltage, overcurrent, overheating and undervoltage. It also adds a soft start circuit to reduce the impact of the start-up process on the driver. The power drive unit first rectifies the input three-phase power or mains power through a three-phase full-bridge rectifier circuit to obtain the corresponding DC. After three-phase AC or mains is rectified, the three-phase permanent magnet synchronous AC servo electrode is driven by using the three-phase sine wave PWM voltage inverter inverter. The entire process of the power drive unit can be simply described as the AC-DC-AC process. The main topological circuit of the rectifier unit (AC-DC) is the uncontrolled rectifier current of the three-phase full bridge.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2022-09-23
What is resistance welding?Hwashi experts will answer for you!
What is resistance welding?Hwashi experts will answer for you!
What is resistance welding?Hwashi experts will answer for you!   Resistance welding is a welding process in which an electric current is passed through the resistance and welding contact surface of the workpiece to generate heat and weld while applying pressure to the welding position.It has the characteristics of high production efficiency, low cost, material saving and easy automation.It is widely used in aerospace, automotive, energy, electronics, hardware and other industries.According to the different welding power sources, it can be divided into power frequency AC welding machine and subpole rectifier welding machine, three-phase low-frequency welding machine, capacitor energy storage welding machine, inverter welding machine, etc.With the development of science and technology, especially the development of computer technology and power component technology, inverter resistance welding, as a new controller, has achieved a comprehensive development.It has the remarkable characteristics of high quality and low consumption and will be used in a wide range.Replace low quality, high power consumption of power frequency AC welder, capacitor energy storage welder, inverter welder, etc.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Hwashi spot welding machine: professional after-sales service team to make you no worries
Hwashi spot welding machine: professional after-sales service team to make you no worries
Hwashi spot welding machine: professional after-sales service team to make you no worries   Why are you so confident?Actually, it's not that I'm confident, but our after-sales team has given it enough confidence.Among them, there are not only experienced electrical engineers, mechanical engineers, software engineers, hardware engineers, etc., but also everyone sees their dedication to their work.(Hwashi spot welder)   Let me introduce you to a recent event. Everyone knows that the heat lasted for a while. Unless you stay in an air-conditioned room, it's too hot anywhere else. In order to meet customer needs, one of our after-sales master in the customer's workshop all night long for two whole days, a few clothes are soaked!   There are countless such examples. Whether it's a cold winter or a hot summer, customers arrive as soon as they call. If the distance is very close, you can drive there. If you are far away, you can take a train or plane. Sometimes, in order to meet the special requirements of some customers, you must work until several days after midnight.   Our after sales team is responsible for installation, debugging and maintenance, so no matter which link you are, whether it is program or hardware, we can solve it for you, so you don't have to worry.(Hwashi spot welder)   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
How much do you know about the welding working principle of HWASHI capacitor storage welding machine?
How much do you know about the welding working principle of HWASHI capacitor storage welding machine?
How much do you know about the welding working principle of HWASHI capacitor storage welding machine?   How much do you know about the welding working principle of HWASHI capacitor storage welding machine? Next, the editor of Hwashi will answer your question.   The capacitor storage welder charges the capacitor after the AC current is rectified by the rectifier.The stored electrical energy is then released by the welding transformer and converted into a low-voltage, relatively concentrated and stable pulse current.Resistance heat is generated at the contact point of the welding workpiece to weld the metal.   Therefore, capacitors occupy a large part of the energy storage machine.Its charging and discharging speed and service life directly affect the overall effect of welding machine.Currently, in the resistance welding industry, it is usually an emergency charging capacitor.It has excellent performance: instantaneous discharge;One million times charge and discharge performance guarantee.The commonly used models are ECST4H1LGB2C1TCB0M 50 * 110 and ECST4H1LGN102MEE5M 76 * 145.The former is often referred to as a small capacitor, while the latter is often referred to as a large capacitor.   Energy-storage welders with small capacitors have a small capacity, resulting in less heat during charging and discharge, and heat to the life of the capacitor (for every 5 degrees Celsius increase in operating temperature capacitors, the life is halved). In addition, when the same capacity of energy storage welders using small capacitor types, the need to parallel more capacitors, which will greatly reduce the capacitor in the process of charge and discharge resistance, thereby reducing the discharge time. And the current is larger, more conducive to welding and protection of workpieces, so it is best to use small capacitors.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Hwashi experts teach you spot welding skills
Hwashi experts teach you spot welding skills
Hwashi experts teach you spot welding skills   The Hwashi spot welder uses the high-temperature arcs generated by instant short circuits of the positive and negative poles to melt the solder and the materials to be welded to the electrodes in order to combine them. The structure of the spot welder is very simple. Frankly, it is a high-power transformer that converts 220V AC into a low-voltage, high-current power supply, which can be DC or AC. Welding transformers have their own characteristics, i.e. the voltage drops dramatically.   When the electrode ignites, the voltage drops. In addition to the primary 220/380 voltage conversion, the secondary coil also has a tap conversion voltage when adjusting the operating voltage of the spot welder, which is also regulated by the iron core. Adjustable iron core welders are usually high-power transformers, which are made according to the inductive principle. When switched on and off, the inductance will produce a significant voltage change. It uses high pressure generated by positive and negative poles in instantaneous short circuits. Arcs are used to melt solder on electrodes in order to combine them. Apply voltage between the electrode and the workpiece to ignite the arc by scratching or touching it, and the energy of the arc is used to melt the electrode and heat the master material.   Spot welders are usually divided into two types of output power, ac power and DC power. It is made using inductive principles. When switched on and off, the inductance will produce a significant voltage change. High-voltage arcs generated by transient short circuits of positive and negative electrodes are used to melt solder on the electrode to achieve their binding objectives.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
How to choose the right spot welder?HWASHI experts tell you!
How to choose the right spot welder?HWASHI experts tell you!
How to choose the right spot welder?HWASHI experts tell you!   How to choose the right and cost-effective spot welding machine is a lot of users are very concerned about the problem!The options include: brand, format, specification, price, etc.With years of experience in welding equipment service, Hwashi will tell you the secret of choosing resistance welding equipment!   First, you need to have your own budget and positioning.This is very important.How much money you plan to spend to solve a welding problem or meet a production need basically determines the direction of choice.With this direction, no time or effort will be wasted in the selection process.For example, for a common 22mm cold plate spot welding connection, the cheapest pedal-type AC spot welder costs only about 5,000 yuan, while a pneumatic AC spot welder with the same welding capacity costs more than 10,000 yuan, with an intermediate frequency inverter point.Welding machine about 50,000 yuan, the price is very different, but the welding quality is also very different!Thus, positioning and budgeting determine the scope of the model.   Second, clarify your welding requirements.In many cases, the customer does not know the inspection criteria for the product to be welded and therefore cannot choose the exact type!Generally, the requirements for welded parts are reflected in the following aspects: welding strength (tension, torque, thrust, shear force, etc.), appearance (deformation, discoloration) and welding efficiency.   For example, M8 four-angle nut projection welding and 2mm galvanized plate, the quality inspection standards of this nut projection welding are from low to high: torque, thrust, penetration, no retractor after penetration, if only torque is needed, the general DN-100 pneumatic AC projection welding machine can meet the requirements.If you want to meet the requirements of thrust and penetration, the need for DB-220 if inverter projection welder.If penetrations are required and cannot be returned to the teeth, use the DR-15000J energy storage projection welder!Prices rose from the lowest of more than $20,000 to the highest of more than $200,000, a difference of nearly ten times!At the same time, intensity requirements of the height also decided the same model of different specifications of the choice.For example, when the strength requirements are low, you can choose a lower power spot welder.   In addition, you need to evaluate your own grid power capacity.The power of spot welders is usually high, about 200KVA per revolution.Often, users who choose a model for the first time are unaware that their grid may be inadequate.After the equipment is returned to the factory, it will be unusable or unable to make full use of its revenue, resulting in huge waste!   Finally, be careful to leave a margin.This is a problem that customers tend to overlook.Because price is considered when selecting a model, the current product of the selected model is correct.When the part to be welded is large and the welding capacity is found insufficient, you can only pay for an update.Buy more powerful projection welders!On the face of it, the initial choice saved the investment, but ended up wasting money!   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Hwashi spot welding machine manufacturer information: how to issue a red letter VAT special invoice
Hwashi spot welding machine manufacturer information: how to issue a red letter VAT special invoice
Hwashi spot welding machine manufacturer information: how to issue a red letter VAT special invoice   Issue special VAT invoice?After the general VAT taxpayer issues the VAT special invoice (hereinafter referred to as the "special invoice"), all or part of the sales will be returned, sales discounts, invoice errors, suspension of taxable services, etc., and every other month, and the invoice does not meet the invalid conditions, only the special invoice in red letters can be issued.(Hwashi spot welding machine manufacturer)   Hwashi spot welding machine manufacturer information: Who is responsible for filling in and uploading "Red letter VAT Special Invoice Information Form"?   VAT must be paid before special scarlet invoices are issued.In the Invoice Tax Control Invoice software, click "Invoice Management - Scarlet Invoice Information Form".In the drop-down menu, there is a red letter VAT special invoice information form to fill in and export publicly.First click to fill out, fill out, then click Export Information Form, then click Upload.There are two ways to fill in and upload the "information form" :(Hwashi spot welding machine manufacturer)   1. If a buyer for the deduction of the special invoice, the buyer is responsible for filling out the information table "and upload, when fill in the information table, don't fill in the corresponding invoices information blue letters, and" information table "listed in the input VAT should transfer to deduct tax temporarily, stay red letters special invoice from the seller later,Together with the "information sheet" as an accounting document.   2. If the Seller has issued a special invoice and has not delivered it to the Buyer, and the Buyer has not declared the deduction and returned the invoice combination and the deduction combination, the Seller shall be responsible for completing and uploading the Information Form and the Seller shall fill in the Information.The appropriate blue letter special invoice information should be filled in the form.   Hwashi spot welding machine manufacturer information: issue a special red letter VAT invoice   After you click and upload the Information Table, tax authorities in charge will receive the Information.Taxpayers upload "worksheets" through the Internet, so the network must be kept open.After automatic verification, the system will generate an "information table" with a "red letter invoice information table number" and synchronize this information to the taxpayer's system.(Hwashi spot welding machine manufacturer)   The seller prints out the "Information Sheet" with the "Red letter Invoice Information Sheet Number", then opens the blank special Invoice, then clicks the red letter Issue Information directly after completing all steps, fills in the form number and prints out the invoice.At this point, a red letter invoice will be issued.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
What is resistance welding?Hwashi experts will answer for you!
What is resistance welding?Hwashi experts will answer for you!
What is resistance welding?Hwashi experts will answer for you!   Resistance welding is a welding process in which an electric current is passed through the resistance and welding contact surface of the workpiece to generate heat and weld while applying pressure to the welding position.It has the characteristics of high production efficiency, low cost, material saving and easy automation.It is widely used in aerospace, automotive, energy, electronics, hardware and other industries.According to the different welding power sources, it can be divided into power frequency AC welding machine and subpole rectifier welding machine, three-phase low-frequency welding machine, capacitor energy storage welding machine, inverter welding machine, etc.With the development of science and technology, especially the development of computer technology and power component technology, inverter resistance welding, as a new controller, has achieved a comprehensive development.It has the remarkable characteristics of high quality and low consumption and will be used in a wide range.Replace low quality, high power consumption of power frequency AC welder, capacitor energy storage welder, inverter welder, etc.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
What's the difference between spot welder and projection welder?Hwashi experts tell you!
What's the difference between spot welder and projection welder?Hwashi experts tell you!
What's the difference between spot welder and projection welder?Hwashi experts tell you!   The difference between a projection welder and a spot welder is that the projection welder workpiece needs to be pre-manufactured into a projection block of a certain shape and size. The size of the current path area during welding is determined by the size of the bump, not by the size on the electric extreme surface like spot welding. As a result, the size of the end face of the projection weld electrode can be increased and the current density in the electrode can be reduced, so that higher strength and lower conductivity can be selected.   Projection welding is mainly used for welding low carbon steel and alloy steel stamping parts.There are many types of projection welding.In addition to plate projection welding, there are nut and screw projection welding, line cross projection welding, tube projection welding and T plate projection welding.   The most suitable thickness for plate projection welding is 0.5 ~ 4mm.When welding thin plates, the projection design requirements are very strict, and the welder is required to have excellent follow.Therefore, spot welding is more suitable for plate thickness less than 0.25mm.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Intermediate frequency welder welding industry professional standards
Intermediate frequency welder welding industry professional standards
Intermediate frequency welder welding industry professional standards   Introduction to intermediate frequency welding machine:   The skill appraisal of welder workers in our country has been in a blank state.There is neither a uniform national vocational skill standard nor a uniform certification body to assess the corresponding skilled workers, resulting in a large number of skills.The lack of making full use of workers' professional skills is not conducive to the cultivation of talents and the quality management of enterprises.   In order to strengthen the welding machine industry technical skills, complex skills and knowledge skills training, effective use of vocational skills training and identification methods, in order to improve the quality of workers and the core competitiveness of enterprises.At the same time, in line with the law of the People's Republic of China on occupational classification comprehensive revision work deployment, using the method of national revision of the favorable opportunity, further straighten out the classifications Meet the development needs of electric welding machine industry system, has been designated by the machinery industry and guide of professional skill appraisal center and delegate, electric welding machine research institute compiled the first three national professional standards.   In order to make the compiled national occupation standard professional and operable, not only reflects the occupation characteristics, but also has the practical guiding significance.For skilled workers, we will fully integrate the company's region, size and production type.Consider, select and invite some influential enterprises, experts and scholars in the welding machine industry to participate in this compilation.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
The Hwashi experts will answer your question, why is the intermediate frequency welding machine better than the AC welding machine in the automotive industry?
The Hwashi experts will answer your question, why is the intermediate frequency welding machine better than the AC welding machine in the automotive industry?
The Hwashi experts will answer your question, why is the intermediate frequency welding machine better than the AC welding machine in the automotive industry? With the rapid development of automobile industry, the safety of body structure and the use of new materials bring new challenges to the welding process of body.For the welding of coated steel plate, adhesive steel plate, multi-layer plate and steel plate of different materials, the traditional AC spot welding machine is difficult to meet the welding requirements, and the emergence of a variety of advanced welding technology and welding equipment requirements of the era, such as intermediate frequency inverter welding machine, capacitor energy storage welding machine, etc.   Artistic creation and craft have always been inseparable.As an industrial technology, the emergence of welding has met the need for new technical methods in the development of metal art.On the other hand, the unique and wonderful changes of metal under the action of welding heat also meet the demand of metal art for a new artistic expression language.In today's metal art creation, welding is expressed as a unique language of artistic expression.Metal welding art can be regarded as a relatively independent art form, separated from traditional metal art in a branching way, because welding is artistic.Welding can produce a rich language of expression for artistic creation.Welding is usually done at high temperatures, and the metal at high temperatures produces many wonderful and rich changes.Metal substrate will undergo color change and thermal deformation (i.e., welding heat affected zone);When the wire is melted, it forms some beautiful textures.Welding defects are commonly used in the welding field.Welding defect refers to the defect that does not meet the design or technological requirements of the welded joint in the welding process.Its performance mainly includes welding crack, porosity, bite edge, incomplete penetration, incomplete fusion, slag inclusion, welding projection, collapse, pit, burn through, inclusion, etc.This is a very interesting phenomenon: welding in today's metal art creation is often reflected in the failure of certain industrial welding operations or certain welding defects that industrial welding tries to avoid.   As a kind of DC resistance welding, intermediate frequency inverter spot welding machine has obvious advantages: wide welding process, fast heating, stable welding, energy saving and so on.These advantages are mainly due to its output current.In fact, the whole performance of the intermediate frequency spot welder is inseparable from the improvement and upgrade of the pressure method.Resistance welding machine is a kind of pressure welding, so pressure is one of the key to achieve different welding results and quality!   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2021-10-22
Hwashi experts recommend the benefits of servo - driven intermediate frequency spot welder to you
Hwashi experts recommend the benefits of servo - driven intermediate frequency spot welder to you
Hwashi experts recommend the benefits of servo - driven intermediate frequency spot welder to you     The servo pressure intermediate frequency spot welder can realize the rapid conversion of various pressures and realize the closed-loop control of real-time self-checking pressure.The welding effect is more perfect, stable, more suitable for military industry, aerospace, titanium alloy and other high quality parts welding.Aluminum alloy, dissimilar metals, etc.   In order to ensure productivity and process quality, in addition to high positioning accuracy, good rapid response characteristics are required, i.e. the response of the tracking command signal is faster because the CNC system is starting and braking. At that time, acceleration and deceleration must be large enough to shorten the transition time of the feed system and reduce the contour transition error. Therefore, for the accuracy of work in various industries, our industrial automation also uses servo-driven pressure to ensure higher accuracy of medium-frequency welders, energy storage welders, AC welders, butt welders and other equipment. At present, mainstream servo drivers are DSP as the control core, can achieve more complex control algorithms, digital, networking and intelligent. Power devices typically use drive circuits with intelligent power modules (IPM) at their core. The drive circuit is integrated into the IPM and has fault detection and protection circuitry such as overvoltage, overcurrent, overheating and undervoltage. It also adds a soft start circuit to reduce the impact of the start-up process on the driver. The power drive unit first rectifies the input three-phase power or mains power through a three-phase full-bridge rectifier circuit to obtain the corresponding DC. After three-phase AC or mains is rectified, the three-phase permanent magnet synchronous AC servo electrode is driven by using the three-phase sine wave PWM voltage inverter inverter. The entire process of the power drive unit can be simply described as the AC-DC-AC process. The main topological circuit of the rectifier unit (AC-DC) is the uncontrolled rectifier current of the three-phase full bridge.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2021-10-22
How to select a nut welder?Hwashi help you answer!
How to select a nut welder?Hwashi help you answer!
How to select a nut welder?Hwashi help you answer!   There are three kinds of nut projection welding machine: pneumatic AC nut projection welding machine, medium frequency inverter nut projection welding machine, capacitor energy storage nut projection welding machine.The application scope and features are as follows:   1. Pneumatic AC nut projection welding machine   Applicable to the projection welding nut requirements are not high, only torque or thrust requirements of the occasion.Need to close the force, generally only suitable for welding M10 below the square projection welding nut, plate thickness is not more than 2.5mm, the material is ordinary cold plate or galvanized plate.Examples include projection welding of nuts on chassis, cabinets and equipment housings.   2. Medium frequency inverter nut projection welding machine   Suitable for parts with high quality requirements for nut projection welding, not only torque and downforce requirements, but also welding and melt depth requirements, suitable for all AC nut projection mold welding machine welding range, suitable for small hexagonal nut projection welding, ring projection welding , galvanized plate nut projection welding, galvanized nut projection welding, high-strength plate nut projection welding, welding after welding does not return welding, such as automotive manufacturing industry for body parts, chassis, CCB and other components of the nut projection welding.   3. Capacitor energy storage nut projection welding machine   High requirements for nut projection welding can be met, such as projection welding of nuts on thermoformed steel in the automotive industry. Due to the strength of the plate, other welding methods can be used. When the nut rises and collapses, it still can't form a core! Currently, only energy storage nut projection welding machine meet their stringent torque, thrust, splash, fusion and reliability requirements.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2021-10-22
What is the difference between inverter power supply and ordinary welding power supply?
What is the difference between inverter power supply and ordinary welding power supply?
What is the difference between inverter power supply and ordinary welding power supply? Hwashi tells you   What is the difference between inverter power supply and ordinary welding power supply? Guangdong Hwashi Technology Co., LTD is a professional welding equipment manufacturer.The developed intermediate frequency inverter spot projection welder is widely used in auto parts, low voltage electrical appliances, household appliances, hardware, tools and other industries.   Inverter power supply is a new type of DC welding machine.The principle is to use alternating current, rectified and filtered into direct current.The inverter circuit is then converted to high voltage intermediate frequency alternating current.The voltage is then reduced to a low voltage alternating or direct current output.Its basic principle can be summarized as: AC-DC-AC-DC.   From its principle, it can be seen that the biggest difference between it and conventional rectifier welding machine is that it does not directly rectify the output, but after rectification and then through the inverter to obtain direct current;And then rectifier, so the welding machine is called inverter welding machine.   This welding machine has the characteristics of high efficiency, energy saving, high power factor, low no-load loss, efficiency up to 80-90%, and small size, easy to weld.Adjustment, therefore welcomed by the market.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Cause of poor joint after spot welding of hardened steel and high carbon steel
Cause of poor joint after spot welding of hardened steel and high carbon steel
Cause of poor joint after spot welding of hardened steel and high carbon steel The experts will lead you to understand the cause of poor joint after spot welding of hardened steel and high carbon steel   The defects of quenched steel and high carbon steel welding mainly include joint embrittlement and joint crack. The solution is to adopt soft standard welding and increase the tempering current.If multi-pulse welding is used, it is necessary to pay attention to the interval time between pulses to ensure that the solder joint is cooled below the temperature of the martensite transition point, and the tempering current should not be too large to avoid the secondary quenching caused by the metal in the welding area re-exceeding the austenite transformation point.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2021-10-22
Hwashi experts will explain why the projection welding nut is incorrectly welded.
Hwashi experts will explain why the projection welding nut is incorrectly welded.
Hwashi experts will explain why the projection welding nut is incorrectly welded.   There are two reasons for the virtual welding process and power supply.One is the process, nut projection welding needs to adopt a hard standard process, that is, a short time, large current, the projection or projection boss in the moment of power in the contact area to generate huge heat, and the plate to generate an effective solid phase connection;Two is the power supply, DC spot welding machine has higher thermal efficiency and better bunching effect, so that the projection spot or boss is easier to form a connection with the plate, especially the capacitor energy storage projection welding machine, in a very short time to release huge energy, is a better choice of projection welding.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Hwashi teaches you how to achieve spot welding of high-strength and thermoforming plates
Hwashi teaches you how to achieve spot welding of high-strength and thermoforming plates
Hwashi teaches you how to achieve spot welding of high-strength and thermoforming plates   High-strength plate, thermoforming plate because of its high hardness, and the surface generally has a coating, so that it is very easy to produce splashes, cracks and extrusions in spot welding, so welding such products need to be adjusted process and equipment, first, the process, the need to choose soft specification welding, and the use of greater welding pressure, which can reduce the production of splashes, and avoid welding cracks; Second, welding equipment, spot welding equipment needs to have a variety of working modes, in the initial use of constant pressure mode, can make high-strength plate softening and full contact, and will not be due to excessive peak caused by splashing, the medium-term use of constant current mode can make the fusion core fully grow, later to give a smaller current can reduce the generation of cracks and other defects, such as the use of mixed control mode inverter point bump welding machine.     Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2021-10-22
What is the reason for the rapid wear of electrodes? Hwashi answers for you
What is the reason for the rapid wear of electrodes? Hwashi answers for you
What is the reason for the rapid wear of electrodes? Hwashi answers for you   There are three main causes of welding electrode wear:   One is the choice of electrode material. Electrode materials need to be replaced according to different welding products. When welding low-carbon steel plates, chrome copper is used because of the use of chromium palladium copper. The softening temperature and conductivity are relatively moderate, which can meet the welding requirements of low carbon steel. Palladium cobalt copper is used for spot welding of stainless steel, mainly palladium cobalt copper, with a high hardness. Alumina dispersed copper is used in the welding of galvanized plates, mainly due to their high hardness. The composition of alumina is not easy to form adhesion with the zinc layer reaction, and the softening temperature and conductivity are relatively high. Dispersed copper is also ideal for welding other materials.   The second is the effect of water cooling, welding area in the welding process will be a large amount of heat conduction to the electrode, better water cooling effect can effectively reduce the temperature rise and deformation of the electrode, thereby slowing down the speed to reduce the wear of the electrode.   The third is the electrode structure, which should be designed to match the workpiece as much as possible. Increasing the diameter of the electrode and reducing the extended length of the electrode reduces the temperature increase caused by the heat generated by the electrode's own resistance.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Hwashi mid-frequency spot welder anti-electric tips
Hwashi mid-frequency spot welder anti-electric tips
Hwashi mid-frequency spot welder anti-electric tips   Welding machine series products all use electricity, medium frequency spot welding machine is certainly no exception. Seismic measures are particularly important in the process of using electricity. So, how to prevent the mid-frequency spot welder from being electrocuted? Next, Hwashi editors will give you some considerations for using automatic spot welders.   First of all, the welding clamp insulation of the medium frequency spot welder must be reliable. The use of shellless welding pliers is strictly prohibited to avoid accidents. This is Guangdong Hwashi Technology INC. automatic medium frequency spot welding machine, as well as other series of spot welding machines in front of the factory have been strictly checked. At the same time, the housing of the automatic mid-frequency spot welder must be grounded. The purpose of grounding is to prevent the spot welder from accidentally touching the housing and causing live injury. It is essential in all cases. The ground body of automatic spot welder can be widely used in naturally grounded electrodes, such as water pipes, metal structures of reliably grounded buildings, etc. However, the use of flammable and explosive pipes as materials for natural ground bodies is strictly prohibited. If the resistance of the natural ground electrode exceeds 4o, it is best to use an artificial ground body, as this may result in an electric shock accident or even a fire. If you want to move the automatic spot welder, you must cut off the power supply. Do not move the spot welder by pulling the cable. If you experience a sudden power failure, cut off the power immediately to prevent a sudden electric shock.   Another thing raised is that construction workers should also take good measures to prevent electricity. Gloves must be worn when replacing the welding rod. If clothes are soaked in sweat, they are not allowed to lean against metal objects. Prevent electric shock. If the mid-frequency spot welder is to be serviced, the power switch must be switched off and there must be a clear disconnect gap, followed by a pen check to ensure that the power supply has been cut off before service begins.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Why are The Hwashi MID-Frequency Spot Welders So Superior?
Why are The Hwashi MID-Frequency Spot Welders So Superior?
Why are The Hwashi MID-Frequency Spot Welders So Superior?   The medium frequency spot welder is the world's most advanced resistance welding products. As a professional research and development manufacturer of medium frequency inverter spot welding machine, Guangdong Hwashi Technology INC. also relies on its strong technical team and strong asset strength to convert the inverter point of the medium frequency. The superior performance of the welding machine is fully realized.   1) The transformer of the medium frequency spot welder is light in weight, small in size and low in input power, so it is very convenient to use the welding gun connected by the transformer. When the traditional frequency welding machine is used in the automatic production line, it is necessary for the robot to have a very strong load capacity, and the transformer of the medium frequency inverter spot welder can greatly reduce the burden of the robot.   2) The welding current of the medium frequency spot welder is rectangular wave, close to DC, so there is no obvious peak current, the size of the melting core is stable and expanded, almost no splash, welding quality is stable, high thermal efficiency. Compared with industrial inverter welding machines, mid-frequency inverter spot welders can reduce welding current by 40%, greatly extending the life of electrodes.   3) Medium frequency spot welders are suitable for welding a variety of materials and exotic metals, such as aluminum alloys, stainless steel, high-strength steel plates and other materials. In addition, for galvanized plate and ordinary multi-layer plate welding, the welding quality is much higher than that of the frequency welding machine.   4) The medium frequency spot welder has the characteristics of three-phase load balancing, the power factor can be as high as 0.9 or higher.   5) The current of the mid-frequency spot welder can reach the set value more quickly, and the parameters can be analyzed more accurately. The response speed is only 5% of the frequency AC spot welder, and the welding quality control is more precise.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Hwashi experts introduce the principle and application of intermediate frequency inverter spot welder
Hwashi experts introduce the principle and application of intermediate frequency inverter spot welder
Hwashi experts introduce the principle and application of intermediate frequency inverter spot welder   The medium frequency inverter DC spot welder is a device that converts three-phase AC rectifier into pulsation DC, and then converts it into medium frequency square wave through an inverter circuit composed of power switching devices, which is connected to the transformer Buck DC resistance welding equipment for welding workpieces, rectifier into a small pulsating DC power supply electrode, is one of the most advanced resistance welding methods today.   The medium frequency inverter DC spot welder can be used for spot and multi-spot welding of ordinary low-carbon steel plates, stainless steel plates, galvanized plates, aluminum plates, wire and high-strength steels. Thermoformed steel in the automotive industry. Spot and nut projection welding in the high and low voltage electrical industry, as well as resistance brazing and spot welding of copper wires, brazing of silver and copper plates, and composite silver spot welding.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.  
2021-10-22
What is the selection of spot welding electrode materials?
What is the selection of spot welding electrode materials?
What is the selection of spot welding electrode materials ? The Hwashi expert tells you!   In the production of resistive welding, welding parts of different materials and shapes need to be equipped with welding rods of different materials and shapes. The electrodes have an effect of more than 50% on the quality of the welding during continuous welding. Select the suitable welding material and electrode for welding. Quality is important!   1. Chromium zirconium copper   CuCrZr is the most commonly used resistance welding electrode material due to its excellent chemical and physical properties and depends on good price/performance ratio.   1. The chromium zirconium copper electrode has reached a good balance on the four performance indicators of the welding electrode:   Excellent electrical conductivity -- minimum impedance of the welding circuit is guaranteed, and excellent welding quality is obtained. High temperature mechanical properties -- the high softening temperature ensures the performance and life of the electrode material in the high temperature welding environment. Wear resistance -- electrode is not easy to wear, prolong life and reduce cost Higher hardness and strength -- to ensure that the electrode head under a certain pressure is not easy to deform and crush, and to ensure the welding quality   2. Electrodes are consumables for industrial production.The quantity is relatively large, so its price cost is also an important factor to consider.Because the chromium zirconium copper electrode performance is better, the price is relatively cheap, can meet the production needs.   3. The chromium zirconium copper electrode is suitable for spot welding and projection welding of carbon steel plate, stainless steel plate, coated plate and other parts.Chromium-zirconium copper material is suitable for the manufacture of electrode caps, electrode connecting rods, electrode heads and electrode supports.Electrode parts, such as rod, special electrode for projection welding, seam welding wheel, contact tip, etc.   The standard electrode head, electrode cap and heteroelectrode produced by cold extrusion technology and precision machining to further improve the performance of the density products, the product performance is more excellent, durable, welding quality is guaranteed.   2. Beryllium Copper (BeCu)   Compared with chromium-zirconium copper, beryllium copper (BeCu) electrode material has higher hardness (up to HRB95 ~ 104) and strength (up to 600 ~ 700MPa/N /mm²) and softening temperature (up to 650℃), but its electrical conductivity is much lower and poor.   Beryllium copper (BeCu) electrode material is suitable for welding high pressure plate, and harder materials, such as seam welding wheel;It is also used for some electrode accessories with high strength requirements, such as crank electrode connecting rod, robot converter;At the same time, it has good elasticity and thermal conductivity, very suitable for manufacturing nut welding chuck.   Beryllium copper (BeCu) electrode has a higher cost and is usually listed as a special electrode material.   3. Alumina copper (CuAl2O3)   Alumina copper (CuAl2O3) is also known as dispersion strengthened copper.Compared with chromium zirconium copper, it has excellent high temperature mechanical properties (softening temperature up to 900℃), high strength (up to 460 ~ 580MPa/N /mm²) and good electrical conductivity (conductivity 80 ~ 85IACS %), good wear resistance, strong resistance, long life.   Alumina copper (CuAl2 O3) is a kind of excellent performance of the electrode material, regardless of its strength and softening temperature, electrical conductivity is very superior, especially for welding galvanized sheet (electrolytic plate), it won't produce the chromium zirconium copper electrode, such as electrode stick on the parts without frequent burnish, effectively solves the problem of welding galvanized sheet, improve the efficiency,Reduce the production cost.   Alumina copper electrode has excellent welding properties, but it is currently very expensive, so it is not widely used.With the wide application of galvanized sheet at present, the excellent welding property of aluminum oxide copper on galvanized sheet makes its market prospect very broad.   Alumina copper electrode is suitable for welding parts, such as galvanized sheet, hot formed steel, high strength steel, aluminum products, high carbon steel plate, stainless steel plate, etc.   4. Tungsten (W), Molybdenum (Mo)   Tungsten electrode materials include pure Tungsten, tungsten-based high-density alloy and tungsten-copper alloy. Tungsten-based high-density alloy is a small amount of tungsten-nickel-iron or nickel-copper sintered tungsten-copper composite material (tungsten-copper) containing 10% to 40% (weight ratio) of copper.   Molybdenum tungsten and molybdenum electrodes are characterized by high hardness, high combustion point and excellent high temperature performance.They are suitable for welding non-ferrous metals, such as copper, aluminum, nickel, etc., such as copper woven fabric and metal chip welding for switching, silver spot welding, etc.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Technical requirements for intermediate frequency spot welder
Technical requirements for intermediate frequency spot welder
Technical requirements for intermediate frequency spot welder   The welding parts of all spot welders (including intermediate frequency inverter spot welders) are the core technical problems in the whole process of spot welders.The quality of welding operation will directly affect the final result of the whole welding, which can not be ignored..So what should we pay attention to when welding parts of inverter spot welding machine? What are the technical requirements?Next, let the Hwashi editor take you into the details. First of all, we know that when connecting steel plates of different thicknesses, if the thickness of the two sides of the steel plates varies too much, the cross-section after connection will change greatly, which will lead to serious stress concentration.Therefore, for important welded structures, such as pressure vessels, thin plates should be reduced.According to the relevant technical standards: when the thickness of the sheet is not more than 10 mm and the thickness difference between the two boards more than 3 mm, or when the thickness of the thin plate is greater than 10 mm and the thickness difference between the two plate by more than 30% of the plate thickness should be greater than the thickness of the sheet or more than 5 mm, thick plate edge should be sheet, sheet should be greater than or equal to the length of the sheet thickness difference of three times.     Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
Detailed tutorial on the use of spot welders
Detailed tutorial on the use of spot welders
Detailed tutorial on the use of spot welders We usually use the spot welding machine can be divided into industrial frequency AC spot welding machine, medium frequency inverter DC spot welding machine, capacitive energy storage spot welding machine three categories, the basic principles of welding are the same, all belong to the key application of resistance welding technology, so today we have not repeated the differences between them, mainly to share the use of spot welding machine tutorial.   The working principle of spot welding machine: Spot welding machine welding mainly has single and double side double spot welding and two-sided double-point welding two ways. At present, two sides double point welding is the dominant method in the concrete application, with not less than 95% of the sales market share. Spot welder in the work, welding workpiece sandwiched in the middle of 2 electrodes, 2 electrodes rely on the cylinder to charge the workpiece, so that double metal workpieces at the pressure of 2 electrodes to produce a certain contact resistance. When the welding current of the spot welder flows from one electrode to another, resistor heat is generated at the point contact of the 2 workpieces, resulting in spot welding at the solder joint. Because the welding current of the spot welder is a circuit generated by the flow of two workpieces from another electrode into the electrode in one moment, the internal structure of the welding workpiece is not destroyed, ensuring the consistency of the original material characteristics.   Detailed tutorial on the use of spot welders: 1. Before the spot welder is applied, the electrode part must be adjusted so that the left and right electrode heads are in a pivot, so as to ensure the generation of current circuits and successful spot welding on the surface of the workpiece. 2. Turn on the spot welder switch power supply, ventilation, test pressure, small editor tips you must not forget the test pressure, which will not only endanger the welding quality of the product, but also endanger the application safety and service life of the spot welder. 3. Set the product welding parameters. The main welding parameters of the spot welder include welding current, welding time and welding pressure, and the tips prompts everyone to set these three welding parameters according to the specific conditions of the welding workpiece. In general, the pressure is operated at 0.2-0.4Mpa, according to which the direction must be converted, and the welding current is adjusted from small to large when adjusting to prevent the welding current from spilling or damaging the electrode. Three welding parameters adjustment complement each other, complement each other, indispensable, the tips prompts everyone all a product welding should have an extremely suitable welding parameters zero boundary point. 4. When the parameters are adjusted, it is possible to enter the product welding process. Place the weld in the middle of the two electrodes, step on the footplate, and touch and charge the upper electrode with the welding part, and when pressing down the stepping plate again, the spot welder implements the welding position. The welding process includes pre-pressurization, charging, heating welding, welding, quenching welding, maintenance and so on, and the parameters of this link can be adjusted according to the welding standards. In general, the welding of the general product does not need three charge and discharge welding, so heating and quenching two stages can generally be set to 0 can be. 5. According to the welding effect of the specific product, the welding parameters can be adjusted according to the target until the welding effect is satisfactory. 6. In the welding process, pay attention to the electrode head and the surface of the product removal, whether it is electrode or product, if the surface layer is dirty or uneven, will cause welding spill, and thus can not achieve high-quality welding effect. Therefore, before welding must be all dirty stains, oil stains, oxidized skin and rust to solve, hot-rolled steel, it is best to weld the first after acid washing, sandblasting or oxidation with grinding wheels. Although the welded parts that have not been removed can carry out welding, they can seriously reduce the service life of the electrodes and reduce the productivity and quality of welding. 7. The electrode head must be regularly polished and restored with fine sandpaper to ensure that the electrode surface is leveled and free of slag residue, so as to ensure the welding quality of the product. 8. When applying spot welding machines, employees should wear protective clothing, wear protective gloves, and the spot welding machine can not accumulate flammable materials nearby, to ensure that the working environment is wide, clean and tidy, to ensure the safety of spot welding machine applications. 9. In addition, the tips also prompted everyone to deactivate the spot welding machine, be sure to close the valve, water valve and power supply switch, in winter, also must eliminate the residual water of the waterway, in order to prevent freezing. 10. In the whole process of buying all a spot welder and installing the application, we must carefully understand the point welding machine manual, solicit the proposal of the point welding machine manufacturer technical staff, the strict equipment spot welder use tutorial to apply the spot welder.   At this stage, the sales market put more spot welding machines have medium-frequency spot welding machine, aluminum plate spot welding machine, galvanized plate spot welding machine, automatic nut spot welding machine, gantry double-head spot welding machine and a variety of automated welding equipment. The basic principles of welding of this spot welding machine are all the same, all resistance welding technology in the industrial industry, and the split out of the industry is mainly in accordance with the characteristics of product materials to make decisions. In addition, there are seam welding machine, butt welding machine, point projection welding machine these, are all point welding machine technology a widening.
2021-10-22
Why do false welds appear in spot welding process of aluminum sheet
Why do false welds appear in spot welding process of aluminum sheet
There are three main reasons for wrong welding in the spot welding process of aluminum plate:   First reason is that the welding pressure is too high, because the aluminum plate has high electrical conductivity and soft material, and the welding pressure reduces the contact resistance, and the heat generated is not enough to produce a qualified nugget The second reason is that the oxide film formed on the surface of the aluminum plate is too thick and has not been cleaned.The solution is to pickle the surface prior to welding or mechanical treatment (e.g. grinding, sandblasting, etc.).   The third is the improper selection of spot welding machine.The thermal and electrical conductivity of aluminum sheets is very high and requires the use of hard specifications and DC spot welders, such as intermediate frequency inverter DC spot welders or energy storage spot welders.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
The reason for the insufficient penetration of parts after resistance brazing
The reason for the insufficient penetration of parts after resistance brazing
Insufficient penetration of solder can result in too low welding speed. There are three main reasons:   First, the welding pressure is too high, resulting in too little contact resistance and insufficient heat to melt and flow the solder. The solution is to reduce welding pressure;   The second reason is that the welding current and welding time are too short, the heat generated is too low, and the time is not enough to allow the solder to flow and penetrate fully. The solution is to increase welding flow and extend welding time.   The third reason is that the composition ratio of the solder is less suitable than the material for the welding workpiece. The solution is to replace the suitable solder.     Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
The reason why the spot welder is too large to spill or even burn the workpiece
The reason why the spot welder is too large to spill or even burn the workpiece
Welding splashes on spot welders can be in two situations: early splash and late splash:   First, The reason for the early splash is that the workpiece starts to discharge when it is not fully compressed, which is mainly reflected in the splash between the electrode and the workpiece or damage to the workpiece and electrode. The solution is to extend the prepressure time or increase the welding pressure.   Second, the reason for the late splash is that when the melting core grows, the welding pressure is too small, which causes the fused core metal to spew out and overburn, which is mainly reflected in the splash when the spot welding cycle is nearing completion. The solution is to increase the welding pressure of the spot welder or reduce the welding current.   Guangdong Hwashi Technology INC. is specialized in the production of series resistance welding machine (spot welding, touch welding, seam welding, row welding, butt welding) and industrial robots (six axis mechanical arm, welding robot, and loading robot, transfer robot, grinding and polishing robot, painting robot, glue robot) research and development, design, production, sales, service as one of the high-tech enterprises.Products are mainly used in household appliances, kitchen appliances, lighting, hardware tools, electrical and electrical, instrumentation, 3C electronic industry, auto and motorcycle parts, military aviation and other fields.According to customer needs, we can develop and customize various welding machines, automatic welding equipment and welding assembly lines, assembly lines, etc., to provide appropriate overall automation solutions for enterprise transformation and upgrading, and help enterprises quickly realize the service of transformation and upgrading from traditional production mode to middle and high-end production mode.
2021-10-22
How to Improve Spot Welding Performance
How to Improve Spot Welding Performance
1) Get trained on the spot welding machine process. Spot welding appears deceptively simple, but numerous process variables must be understood and controlled. With many different settings available on the typical spot-welding machine, it’s important to understand how to adjust each setting for optimum results. And, just like baking a cake, it’s critical to use the right spot welding recipe Metalformers should refer to readily available recipe charts, which prescribe the recommended settings for secondary amps (weld heat), weld duration (current flow time) and forging pressure (force) for spot welding various sheetmetal types and thicknesses. Note: Use these settings only as a starting point. A rule of thumb: Assuming the proper welding force is used, the strongest and most attractive joints typically result from a high heat setting and a short weld time, referred to as a Class A welding schedule. Class B and C welding schedules often find use when a metalformer uses a welding machine too small for the material thickness being welded. These schedules include lower force ranges and longer weld times, which result in lower weld-shear strength and more surface marking, due to a larger heat-affected zone. Skilled-labor retirements and layoffs during the past few years have reduced the tribal knowledge of many shops performing spot welding, but several sources offer books and training courses on the process. For example,HWASHI Company offers several training options including an in-plant seminar conducted at your own location. HWASHI Technology has also introduced an all-new online, interactive version of its resistance welding seminar.   2) Select the right welding machine. The most important thing to remember: Select a machine than can make optimum-strength Class A welds with about 25 percent of its available amperage and force range left in reserve. Most companies are not equipped to properly size a machine on their own, so heed the advice of an experienced machine builder. A good sales engineer will quote a machine only after asking questions about the materials to be welded and the speed at which the machine will operate. Since an spot welding machine KVA rating can be inflated by using a duty cycle of less than the RWMA standard of 50 percent, be sure to ask if the machine being quoted meets those standards. Although rocker-arm spot welding machine are the most common due to their relatively low purchase price, they apply weld force with a lever action—the tips often skid if the arms are not perfectly aligned. Therefore, a more-expensive vertical-action press-type machine often gets the call when the application requires an attractive, low-marking show surface. A welding machine that’s too large can cause just as many problems as one that’s too small, especially when the air-cylinder diameter is so over-sized that it must be run on an air-line pressure below 40 lb. to achieve the desired weld force. Unacceptable weld strength can result from inadequate air-cylinder follow- up action at the instant the sheet metal reaches the molten state, when it needs to be properly forged. To accommodate the new high-strength steels finding use in the automotive industry, manufacturers of spot welding machine and controls have made significant advances. For example, machines equipped with mid-frequency direct-current (MFDC) three-phase inverter power supplies have become common in job shops because they offer many advantages over the traditional single-phase AC machine. So, ensure good quality by replacing or rebuilding your tired, old spot welding machine, or at least retrofit them with new programmable controls.     3) Use the right setup tools. To make sense of spot-welding recipe charts, every shop using the process should own a specialized resistance- welding amp meter to measure the secondary spot welding machine current delivered to the tips. In addition, since lever-action variables (on a rocker-arm spot welding machine) and ram friction (on a vertical-action press-type machine) can impact the weld force delivered, shops also should have a direct-reading gauge to measure the actual weld force between the tips. Using a secondary amp meter and force gauge enables an spot welding machine operator to set up the machine scientifically rather than through trial-and-error. And, when documentation is required, some of the available meters also can serve as monitors to record and store welding variables for reference.   4) Use a tensile tester. Testing spot welds should be more scientific than dropping welded parts on the floor. Although a mechanical peel or chisel test can be a useful way to visually check weld strength and nugget diameter, the best quality-assurance tool is a tensile tester designed to pull small welded sample coupons to failure. The shear strength of a good spot weld should exceed than that of the parent material.       5) Determine the weld lobe. Due to its wide plastic range, low-carbon steel can be successfully spot welded with various machine settings. However, to determine the ideal setting a metalformer must experiment with the welding machine and use a tensile tester to check the results. At the low end of the weld-lobe window, weld strength is unacceptable; at the high end, expulsion occurs. To zero-in on the optimum settings for the material being welded, the operator should confirm the optimum weld recipe and use those parameters as a starting point for the production run. Weld strength will decrease as the electrodes wear, but starting in the middle of the acceptable range, rather than on the “ragged edge,” allows the process to be most stable and reliable.   6) Use the right electrode tips and holders. Tip selection plays an important role in successful spot welding and there are numerous electrode shapes and copper alloys available from which to choose. Again, rely on the advice of a knowledgeable vendor for guidance. For example, rather than using expensive offset electrode tips, a vendor may recommend using an offset holder and a less-expensive straight tip. In addition, using small, replaceable electrode caps rather than traditional onepiece electrodes can yield significant savings. And, to maximize electrode life, use tubes with ends cut on a 45-deg. angle to force water all the way to the bottom of the tip’s internal cooling chamber.   7) Dress tips early and often. Since most spot welding machine quality issues can be traced directly to electrode wear, metalformers cannot afford to neglect electrode tips. Dressing or exchanging tips on a regular basis—long before required—will pay big dividends. Here’s an example of the importance of tip dressing: RSW charts often recommend tips with a ¼-in.-dia. weld contact face. Let’s assume you’ve determined that the material you’re welding requires 9800 A for optimum weld strength. Here’s the rub: If nothing else changes and the tips mushroom from ¼-in. dia. to just 3⁄8 in., which is hardly noticeable, lab tests have shown that 22,100 A would be required to get the same strength. It’s situations like this that result in weak spot welds and rejected parts. While metalformers can select from several types of tip dressers, the best method of maintaining the proper weld-face diameter is to remove the electrodes from the machine after a predetermined number of welds, long before they’ve mushroomed out of control. Dress the electrode tips offline with a lathe or drill press equipped with the proper cutter blades.     8) Design for resistance welding. Metalformers can reference charts listing minimum contacting overlap, and designers of spot-welded sheetmetal parts should include adequate flange widths to avoid expulsion, which lessens weld strength. Additionally, carefully consider weld spacing. Placing spot welds too closely together can result in shunting. Here, some of the welding energy is lost through adjoining welds, possibly resulting in substandard weld strength. Spring-back of the parts being welded also can plague the spot welding machine process. Using a portion of the welding machine’s available weld pressure to force the parts together can compromise proper forging of the weld.   9) Purchase steel of known quality. spot welding machine problems sometimes can be traced back to a coil of steel purchased at an attractive discount, but of dubious quality. High carbon content can cause serious welding problems, as can inconsistent coating thickness. If the welding machine is not adjusted properly to accommodate these variations, welds that look good may fall apart.   10) Schedule regular preventive maintenance. spot welding machine typically do not see the regular preventive maintenance (PM) they deserve. Machine performance degrades over time, due to corrosion and/or arcing of the numerous copper-to-copper secondary connections carrying current from the transformer to the tips. Therefore, metalformers should disassemble, clean and tighten the entire secondary loop at least once per year. They also should regularly examine the force-delivery system and repair any air leaks and mechanical wear.
2021-10-22
Welcome to visit us at Booth E2262 at 2019 Essen Welding and Cutting Expo in Shanghai
Welcome to visit us at Booth E2262 at 2019 Essen Welding and Cutting Expo in Shanghai
  Dear Sir/Madam,   Our company is going to attend the 2019 Essen Welding and Cutting Fair from June 25, 2019 to June 28, 2019 at Shanghai New International Expo Center. Our exhibited machines include industrial welding robot, capacitor discharge spot welding machine, medium frequency spot welding machine, pneumatic AC spot welding machine, automatic braided wire welding and cutting machine. Welcome you to our booth E2262 for further discussion and cooperation. If you are interested in visiting, please log in the following website for visitor pre-registration.   http://www.beijing-essen-welding.com/en/Visitor%20Guide.htm   Add: Shanghai New International Expo Center, 2345 Longyang Road, Pudong New Area, Shanghai, P.R.C. June 25-28, 2019 Any questions, please feel free to contact us.     BeijingEssen Welding & Cutting Fair!   -- Once you come, you will come every year!     Beijing Essen Welding & Cutting Fair (BEW), which is co-sponsored by Chinese Mechanical Engineering Society (CMES), Welding Institution of CMES, China Welding Association (CWA), Welding Equipment Committee of CWA, German Welding Society (DVS) and Messe Essen GmbH, is one of the world’s two leading professional welding exhibitions. It attracts tens of thousands of professionals in welding industry (manufacturers, distributors, agents, research institutions, government departments, etc.) every year. BEW has successfully held for 20 times, and the scale of it has expanded each time. Despite new exhibitors increasing, many famous exhibitors such as Lincoln, Panasonic, Golden Bridge, Kaiyuan Group, ABB, Beijing Time and so on, come regularly, which ensure the quality and standard of the fair. As for the 21st BEW, the gross exhibition area was 84,700 ㎡with over 900 exhibitors from 28 countries, among them, 189 exhibitors were from overseas. During the fair, 44,152 visitor entries from 49 countries and areas have come to visit the fair. The visitors are mainly from the machinery manufacturing, pressure vessels, automobile manufacturing, railway locomotives, oil pipelines, shipbuilding, aviation and aerospace industrial sectors. Nearly 40 domestic and foreign professional journals, related exhibitions, websites have reported the fair. As the largest and the most influential event, BEW provides a platform for domestic, as well as import and export trade all over the world. The 21th Beijing Essen Welding & Cutting Fair is to be held at New China International Exhibition Center in Beijing on 14-17, June, 2016. Welcome your attention.
2019-06-12
Comparison between AC Welding Power and Medium Frequency Inverter DC Welding Power
Comparison between AC Welding Power and Medium Frequency Inverter DC Welding Power
1. AC Welding Power Control System After the connection in series of anti-parallel silicon controlled and primary welding transformer, then the AC power control system will enter into power grid. It uses the AC electric resistance welding controller to adjust the conduction angle of the silicon controlled so as to adjust the welding current of the transformer. 2. Medium Frequency Inverter Welding Power Control System In MF inverter welding power control system, the three-phase AC will become DC through the rectifying circuit. Then the DC will become medium frequency square wave to be connected to primary welding transformer through the inverter circuit which is composed of power switching elements. The MF square wave will become small pulse DC to the electrode for welding work piece through the depressurization and rectifying process in the welding transformer. The inverter will adjust the switching of power devices through the feedback secondary current so as to achieve constant current of the welding process. Compared Picture for MF and AC resistance welding Advantage of MF welding 1. The current in secondary welding loop is DC. Dramatically reduce the impact to the welding current due to the inductive reactance in secondary loop when conducting welding to the work piece. 2. Three-phase balanced load can reduce the requirement to the power supply system. The power factor is close to 1. No electrical inductance so no need to adjust the power factor. 3. Eradicate the contamination to the power supply. It is a kind of environmentally friendly welding mode. No need to provide power independently. It is able to be used together with robot welding fixture system. 4. Reduce power consumption, save energy. Reduce the requirement of cables and lots of maintenance cost. 5. The weight of transformer is reduced greatly. It is light and convenient. The weight and size of the MF transformer is only 1/3 of the AC type transformer. Suitable for robot welding system. 6. Increase the heat input efficiency. The output of welding transformer is DC voltage, without the disturbance of inductance. Pure DC has no defect of zero paasage. The efficiency of heat is enhanced dramatically. 7. Intelligent digital full-closed loop control. The welding control current will be more precise. The adjustment precision and monitoring precision is 20 times higher than the AC system. Be able to protect the inverter and transformer. 8. Increase the stability of the welding technology. DC welding technology is good and the welding parameters are of wide application. The secondary current could achieve actual constant current. Have better using prospect than AC. 9. Digital control can better improve the current control and measurement accuracy. The welding time precision is ms which can help you control the welding time at random. 10. Be able to weld aluminium and galvanized metal with good welding quality. 11. Especially suitable for welding three-layer metal sheet or very thin material and precision welding requirement. 12. Precision inverter DC resistance welding. Higher inverter frequency, more accurate control of the current.
2019-04-28
What is resistance welding? The principle of resistance welding
What is resistance welding? The principle of resistance welding
Resistance welding refers to the method of using the resistance heat generated by the current passing through the welding parts and the contact points as the heat source to heat the parts locally and pressurize the welding process at the same time.Welding, do not need to fill the metal, high productivity, small deformation of welding parts, easy to achieve automation. Resistance welding is a welding method that makes the workpiece under a certain electrode pressure and uses the resistance heat generated by the current passing through the workpiece to melt the contact surface between the two workpieces and realize the connection. Larger currents are usually used. To prevent arcing on the contact surface and to press the weld metal during welding, pressure is always applied. In this kind of resistance welding, the surface of the welder is of Paramount importance to obtain stable welding quality.Therefore, the contact surface between electrode and workpiece and between workpiece and workpiece must be cleaned before welding. When the workpiece and electrode are set, the resistance of the workpiece depends on its resistivity. Therefore, resistivity is an important property of the welded material. Metals with high resistivity have poor thermal conductivity (such as stainless steel) and metals with low resistivity have good thermal conductivity (such as aluminum alloy). Therefore, spot welding stainless steel is easy to produce heat and heat dissipation is difficult, spot welding aluminum alloy is difficult to produce heat and heat dissipation is easy.Spot welding, the former can use a small current (thousands of amps), the latter must use a large current (tens of thousands of amps).
2019-04-28
Welcome to visit us at Booth 1B316 at 2018 Essen Welding and Cutting Expo in Dongguan
Welcome to visit us at Booth 1B316 at 2018 Essen Welding and Cutting Expo in Dongguan
Dear Customers: Our company is going to attend the 2018 Beijing Essen Welding and Cutting Fair from May 8, 2018 to May 11, 2018 at Houjie. Guangdong modern international exhibition center. Our exhibited machines include industrial welding robot, capacitor discharge spot welding machine, medium frequency spot welding machine, pneumatic AC spot welding machine, automatic braided wire welding and cutting machine. Welcome you to our booth 1B316 for further discussion and cooperation. If you are interested in visiting, please log in the following website for visitor pre-registration.   http://www.beijing-essen-welding.com/en/Visitor%20Guide.htm     Booth No.: 1B316 Address: Houjie. Guangdong modern international exhibition center. May 8-11, 2018 Any questions, please feel free to contact us.   Best regards, Kary   GUANGDONG HWASHI TECHNOLOGY INC. Name: Ms Kary Hou Position: Sales Manager Tel: +86-755-84567286 Mobile: +86 13380655800 Skype: karyhou Website: www.hwashi.com E-mail: export_trade@hwashi.com Office: Room 903, Xuyuan Building, No. 5003 Longgang Road, Shenzhen, Guangdong, China 518000 Factory: Yuechang Hongtian Managerial Area, Xinxu Town, Huiyang, Huizhou, Guangdong, China. 516225     Exhibited Machines:   WL-C-2K Capacitor Discharge Spot Welding Machine with latest KD6 Controller   WL-MF-160K Medium Frequency Inverter Spot Welding Machine and WL-SP-50K AC Spot Welding Machine   HS-R6-08 6 Axis and 4 Axis Industrial MIG Welding Robot                                WL-TP-MF50K Copper Braided Wire Automatic Welding And Cutting Machine     Note: Great discount will be given if you order the machine on spot!
2018-04-25
Welcome to visit us at the 6th International Exhibition on Metalworking & Welding Technology Vietnam 2017
Welcome to visit us at the 6th International Exhibition on Metalworking & Welding Technology Vietnam 2017
  Dear Sir/Madam,   Our company is going to attend the 6th International Exhibition on Metalworking & Welding Technology Vietnam 2017 from Nov.29th, 2017 to Dec.2rd 2017 at Saigon Exhibition & Convention Center – SECC. Our exhibited machines include 6 axis industrial welding robot, 160kva medium frequency spot welding machine, 50kva pneumatic AC spot welding machine. Welcome you to our booth B018 for further discussion and cooperation. For visiting, please log in the following website for visitor pre-registration. http://metal-weld.vietfair.vn/   The scope of exhibition: Welding machinery and materials Fixed material Metal Tools Metal processing equipment(Metal cutting machines & Mold machines)   Booth Information: Booth No.: B018 Time:Nov.29th, 2017- Dec.2rd 2017 Address:Saigon Exhibition & Convention Center - SECC, 799 Nguyen Van Linh St., Dist.7, Ho Chi Minh City , Vietnam     Exhibited Equipment:   6-axis Industrial Robot Welding Machine                                160KVA Medium Frequency Inverter Spot Welding Machine                                  50KVA Pneumatic AC Spot Welding Machine                                 Sincerely welcome your attending!      
2017-10-25
Welcome to Visit Us at 2017 Shanghai Essen Welding and Cutting Fair
Welcome to Visit Us at 2017 Shanghai Essen Welding and Cutting Fair
              Dear Sir/Madam,   Our company is going to attend the 2017 Beijing Essen Welding and Cutting Fair from June 27, 2017 to June 30, 2017 at Shanghai New International Expo Center. Our exhibited machines include industrial welding robot, capacitor discharge spot welding machine, medium frequency spot welding machine, pneumatic AC spot welding machine, automatic braided wire welding and cutting machine. Welcome you to our booth E6222 for further discussion and cooperation. If you are interested in visiting, please log in the following website for visitor pre-registration.   http://www.beijing-essen-welding.com/en/Visitor%20Guide.htm   Add: Shanghai New International Expo Center, 2345 Longyang Road, Pudong New Area, Shanghai, P.R.C. June 27-30, 2016 Any questions, please feel free to contact us.     BeijingEssen Welding & Cutting Fair!   -- Once you come, you will come every year!     Beijing Essen Welding & Cutting Fair (BEW), which is co-sponsored by Chinese Mechanical Engineering Society (CMES), Welding Institution of CMES, China Welding Association (CWA), Welding Equipment Committee of CWA, German Welding Society (DVS) and Messe Essen GmbH, is one of the world’s two leading professional welding exhibitions. It attracts tens of thousands of professionals in welding industry (manufacturers, distributors, agents, research institutions, government departments, etc.) every year.   BEW has successfully held for 21 times, and the scale of it has expanded each time. Despite new exhibitors increasing, many famous exhibitors such as Lincoln, Panasonic, Golden Bridge, Kaiyuan Group, ABB, Beijing Time and so on, come regularly, which ensure the quality and standard of the fair. As for the 21st BEW, the gross exhibition area was 84,700 ㎡with over 900 exhibitors from 28 countries, among them, 189 exhibitors were from overseas. During the fair, 44,152 visitor entries from 49 countries and areas have come to visit the fair. The visitors are mainly from the machinery manufacturing, pressure vessels, automobile manufacturing, railway locomotives, oil pipelines, shipbuilding, aviation and aerospace industrial sectors. Nearly 40 domestic and foreign professional journals, related exhibitions, websites have reported the fair.   As the largest and the most influential event, BEW provides a platform for domestic, as well as import and export trade all over the world. The 21th Beijing Essen Welding & Cutting Fair is to be held at Shanghai New International Expo Center in Shanghai on 27-30, June, 2017. Welcome your attention.  
2017-05-11
Welcome to Visit Us At 2016 Shenzhen International Welding and Cutting Expo
Welcome to Visit Us At 2016 Shenzhen International Welding and Cutting Expo
    2016 Shenzhen International Welding and Cutting Expo will be held at Shenzhen Conventional and Exhibition Center during 21st September, 2016 to 23rd September, 2016. We sincerely invite you to our booth for further discussion and seeking cooperation opportunity. HWASHI company will provide you the most advance welding technology and high efficient automation solutions.   【Exhibition Introduction】 Shenzhen International Welding and Cutting EXPO of 2016 will be held at Shenzhen Convention and Exhibition Center during 2016.9.21 -23. We hereby sincerely invite you to visit our booth. We will provide you the most advanced welding technology and high efficient automation solution.   With the gradual deepening of China's industrialization process, it promotes the adjustment of the industrial structure, weakening the demographic dividend and increase of labor costs. Especially the promotion of the "Made in China 2025" policy and the implementation of the "3D Printing" strategy, "robot revolution", "Intelligent Manufacturing ",etc. which symbolize the wave of re-industrialization will have far-reaching impact on the real economy in China. And new market demand for chinese welding equipment and materials will occur and provide a good opportunity and broad market space for welding and cutting companies. Pearl River Delta region as the largest processing and manufacturing base in China or even in the world, technological innovation and equipment upgrading is of urgent and great demands.   Welding industry flagship exhibition for filling the blank in southern China - "2016 Shenzhen International Welding and Cutting Expo," held by the authority of institutions and Zonglan Exhibition Company for deep integration of industry resources and exhibition resources, covering the indutries in radiation automotive, mold, electronics, military, aerospace, metallurgy, machinery, electrical and mechanical, electrical, pharmaceutical, energy and other related industrial clusters fo the sake of creating the leading procurement and communication platform in this industry.     【Booth Information】 Booth No.:A106 Time:Sep 21, 2016~Sep 23, 2016 Address:Shenzhen Convention and Exhibition Center, Shenzhen, Guangdong, China   【Exhibited Equipment】   WL-C-2K Capacitor Discharge Spot Welding Machine with latest KD6 Controller   WL-C-3K Capacitor Discharge Spot Welding Machine   WL-MF-60K Medium Frequency Inverter Spot Welding Machine   WL-MF-300K Medium Frequency Inverter Spot Welding Machine   HS-RAW10 Industrial TIG Welding Robot                                     WL-TP-MF50K Copper Braided Wire Automatic Welding And Cutting Machine     Note: Great discount will be given if you order the machine on spot!
2016-09-06
Great Success in the 21st  Beijing Essen Welding and Cutting Fair
Great Success in the 21st Beijing Essen Welding and Cutting Fair
Beijing Essen Welding & Cutting Fair (BEW), which is co-sponsored by Chinese Mechanical Engineering Society (CMES), Welding Institution of CMES, China Welding Association (CWA), Welding Equipment Committee of CWA, German Welding Society (DVS) and Messe Essen GmbH, is one of the world’s two leading professional welding exhibitions. It attracts tens of thousands of professionals in welding industry (manufacturers, distributors, agents, research institutions, government departments, etc.) every year.   Guangdong Hwashi Technology Inc. has achieved great success in this fair. Our booth attracted many customers from domestic and abroad. Some customers signed the contract at spot for our favorable price. It is a great opportunity to find good supplier here. It was nice meeting our copperated partners all over the world.    
2016-06-30
Welcome to Visit Us at 21st Beijing Essen Welding and Cutting Fair
Welcome to Visit Us at 21st Beijing Essen Welding and Cutting Fair
Dear Sir/Madam,   Our company is going to attend the 21st Beijing Essen Welding and Cutting Fair from June 14, 2016 to June 17, 2016 at Beijing New China International Exhibition Center. Our exhibited machines include industrial welding robot, capacitor discharge spot welding machine, medium frequency spot welding machine, automatic braided wire welding and cutting machine. Welcome you to our booth W2602 for better further discussion and cooperation. If you are interested in visiting, please log in the following website for visitor pre-registration before June 8, 2016.   http://www.beijing-essen-welding.com/en/Visitor%20Guide.htm   Add: New China International Exhibition Center, Beijing June 14-17, 2016 Any questions, please feel free to contact us.         BeijingEssen Welding & Cutting Fair! -- Once you come, you will come every year!     Beijing Essen Welding & Cutting Fair (BEW), which is co-sponsored by Chinese Mechanical Engineering Society (CMES), Welding Institution of CMES, China Welding Association (CWA), Welding Equipment Committee of CWA, German Welding Society (DVS) and Messe Essen GmbH, is one of the world’s two leading professional welding exhibitions. It attracts tens of thousands of professionals in welding industry (manufacturers, distributors, agents, research institutions, government departments, etc.) every year.   BEW has successfully held for 20 times, and the scale of it has expanded each time. Despite new exhibitors increasing, many famous exhibitors such as Lincoln, Panasonic, Golden Bridge, Kaiyuan Group, ABB, Beijing Time and so on, come regularly, which ensure the quality and standard of the fair. As for the 21st BEW, the gross exhibition area was 84,700 ㎡with over 900 exhibitors from 28 countries, among them, 189 exhibitors were from overseas. During the fair, 44,152 visitor entries from 49 countries and areas have come to visit the fair. The visitors are mainly from the machinery manufacturing, pressure vessels, automobile manufacturing, railway locomotives, oil pipelines, shipbuilding, aviation and aerospace industrial sectors. Nearly 40 domestic and foreign professional journals, related exhibitions, websites have reported the fair.   As the largest and the most influential event, BEW provides a platform for domestic, as well as import and export trade all over the world. The 21th Beijing Essen Welding & Cutting Fair is to be held at New China International Exhibition Center in Beijing on 14-17, June, 2016. Welcome your attention.  
2016-05-12
We attended the 6th India Essen Welding & Cutting Exhibition in Mumbai
We attended the 6th India Essen Welding & Cutting Exhibition in Mumbai
Hwashi Technology (HK) Co., Ltd./ Huizhou Hwashi Welding Equipment Co., Ltd., as the leading company in resistance welding industry has attended the 6th India Essen Welding & Cutting Exhibition in Mumbai on Oct 28-30, 2014. During the exhibition, our exhibited resistance welding machine won great popularity. Especially the braided wire automatic welding and cutting machine and automatic sink welding machine attracted many visitors.        
2016-02-01
2015 Spring Festival Party
2015 Spring Festival Party
2016-02-01
HWASHI Attend 18th China Mac Fair in Vietnam in 2015
HWASHI Attend 18th China Mac Fair in Vietnam in 2015
HWASHI company has attended the 18th China Mac Fair in Ho Chi Minh, Vietnam on Dec 2-5, 2015. Our robotic systems and advanced automatic welding machine systems has attracted hundreds of customers. Hope more and more customers from Vietnam would be able to used our good quality welding machine in the near future.  
2016-02-01
HWASHI Company Has Been Public Listed in Tianjin Equity Exchange Successfully
HWASHI Company Has Been Public Listed in Tianjin Equity Exchange Successfully
On Dec 23, 2015, Guangdong Hwashi Technology Inc. , the professional automatic machine manufacturer, has been public listed in the stock market in TJS (Tianjin Equity Exchange). (The enterprise referred to as"HWASHI TECHNOLOGY". Code:944018) This event has great importance to Hwashi Technology company because it will help us to utilize capital market to do equity financing so as to enhance competitiveness in welding machine industry.   Guangdong Hwashi Technology Inc. Chairman: Mr. Ding Xiaosheng made a speech.  Chairman and Shareholder
2016-02-01
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