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Resistance welding machine welding process
Wuxi Xinxing Welding Equipment Factory mainly produces: spot welding machines, butt welding machines, flash butt welding machines, medium frequency spot welding machines, energy storage spot welding machines, nut spot welding machines, polymer diffusion welding machines and other resistance welding equipment! QQ online consultationSitemapContact us
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Resistance welding machine welding process
Release time:2022-06-14 15:15
Summary of information:
The welding process of the resistance welding machine is completed in 2 seconds. The editor of Xinxing often thinks that it is a simple matter, but it consists of 4 main stages: 1. Pre-pressure 2. Welding time 3. Maintenance time 4. Rest time
Resistance welding machineButt welding machineThe welding process is completed in 2 seconds. Xinxing editor often thinks that it is an extremely simple thing, but it contains 4 main stages.
1. Preloading
2. Welding time
3. Maintenance time
4. Rest time
1) During spot welding and projection welding, current welding must be performed after the electrode pressure reaches full value and is stable. Otherwise, the pressure may be too low and the contact resistance may be too large, causing strong splashing, or the pressure may be inconsistent, affecting heating and causing fluctuations in solder joint strength.
2) The electrode must be lifted only after the current is completely cut off, otherwise sparks will be caused between the electrode and the workpiece, or even the workpiece may be burned through.
To improve joint performance, one or more of the following are sometimes added to the base cycle:
1) Increase the pre-pressure to eliminate the gaps between thick weldments;
2) Use preheating pulses to improve the plasticity of the metal, so that the welding parts are closely adhered to each other, otherwise there will be spatter; during projection welding, this can make multiple bumps in balanced contact with the electrode before power is applied to ensure the consistency of heating at each point.
3) Increase the forging pressure to make the nugget dense and prevent cracks and shrinkage cavities.
4) Use tempering or slow cooling pulse to eliminate the quenching structure of alloy steel and improve the mechanical properties of the joint.
Wuxi Xinxing Welding Equipment Factory has been engaged in resistance welding for 29 years. Its core technical products include: semi-automatic butt welding machine, pneumatic-flash butt welding machine, multi-strand wire welding machine, foot pedal spot welding machine, pneumatic spot welding machine, medium frequency spot welding machine, row welding machine mesh welding machine, automatic resistance welding machine, energy storage welding machine, copper rod and aluminum rod rounding Welding machine, auto parts spot welding machine, sheet metal spot welding machine, home appliance hardware spot welding machine, small electrical appliance spot welding machine, copper bar copper pipe welding machine, nut spot welding machine, stainless steel welding machine, foil belt spot welding machine, aluminum spot welding machine, multi-head spot welding machine, bag cage spot welding machine, mesh row welding machine, ton barrel rack welding production line, resistance automatic welding machine,brazing machine, diffusion welding machines, projection welding machines, seam welding machines, wire and cable optical cable supporting equipment, etc., reaching more than 300 types. If you are interested in our welding equipment, please contact us.
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Resistance brazing tool steel
Summary of information:
Tool steel generally includes medium and low carbon steel tool steel, alloy steel and high-speed steel. In the high temperature of resistance brazing, their structure and properties are prone to annealing, oxidation and decarburization. Therefore, in order to less affect its hardness and wear resistance, we generally keep the brazing temperature consistent with the quenching temperature. Operation points 1.
Tool steel generally includes medium and low carbon steel tool steel, alloy steel and high-speed steel. In the high temperature of resistance brazing, their structure and properties are prone to annealing, oxidation and decarburization. Therefore, in order to less affect its hardness and wear resistance, we generally keep the brazing temperature consistent with the quenching temperature.
Operational points
1. Before brazing tool steel, oxides, oil stains and other debris on the surface of the workpiece must be removed to facilitate the wetting and spreading of the brazing material and flux.
2. When brazing and quenching are performed at the same time, the temperature of the brazing material selected should also be close to the quenching temperature.
3. Most of the solders are copper-based solder or silver-based solder.
4. Borax and boric acid fluxes are mainly used, such as FB101~FB104, FB301, FB302 and other fluxes.
5. It is advisable to use less than 80% of the welding current for brazing.
6. Test welding with a small current first, then slowly increase the welding current until the speed is satisfactory.
7. When the temperature reaches the temperature, step on the foot switch intermittently to control the temperature.
8. Post-weld cleaning, slag removal and pickling.
Wuxi Xinxing Welding Equipment Factory has been engaged in resistance welding for 29 years. Its core technical products include: semi-automatic butt welding machine, pneumatic-flash butt welding machine, multi-strand wire welding machine, foot pedal spot welding machine, pneumatic spot welding machine, medium frequency spot welding machine, row welding machine mesh welding machine, resistance automatic welding machine, energy storage welding machine, copper rod and aluminum rod disc circular welding machine, auto parts spot welding machine, sheet metal spot welding machine, home appliance hardware spot welding machine, small electrical appliances There are more than 300 types of spot welding machines, copper bar copper tube welding machines, nut spot welding machines, stainless steel welding machines, foil strip spot welding machines, aluminum spot welding machines, multi-head spot welding machines, bag cage spot welding machines, mesh welding machines, ton rack welding production lines, automatic resistance welding machines, brazing machines, diffusion welding machines, projection welding machines, seam welding machines, wire and cable optical cable supporting equipment, etc. If you are interested in our welding equipment, please contact us.
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