Article
Because copper alloy has good electrical and thermal conductivity, its spot weldability is quite poor, and thin plates are mostly usedResistance spot welding machineFor welding, use resistance brazing for thicker ones. They are mainly brass, red copper, bronze and white copper, which are widely used in non-ferrous metals, foil strips, electronic appliances, instruments, carbon brushes, motors, transformers, wires and cables and other industries.
Spot welding technical points: (1) Copper and copper alloys with high conductivity dissipate heat quickly. Electrodes with small heat dissipation must be used during spot welding. Generally, electrodes inlaid with tungsten or molybdenum are used. When spot welding copper alloys with a relative conductivity less than 30% of pure copper, cadmium copper alloy electrodes can be used. (2) 0.01-0.2mm thick can be welded with a foot-operated SDN type copper strip special AC resistance spot welding machine. 0.1-0.2 copper small electrical and electronic parts are welded with a small precision AC pneumatic spot welder, which is fast and good. If the copper alloy surface does not discolor and deform and saves power and energy, it is advisable to use a capacitor discharge type energy storage spot welder and a DC shock wave intermediate frequency spot welder for welding. (3) Increase the point spacing and overlap width to reduce shunting and splashing.
Wuxi Xinxing Welding Equipment Factory has been engaged in resistance welding machines 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 circular welding machine, auto parts spot welding machine, sheet metal parts spot welding machine, home appliance hardware spot welding machine, small electrical appliance spot welding machine, copper row copper pipe welding machine, nut spot welding machine, stainless steel welding machine, foil strip spot welding machine, aluminum spot welding machine, There are more than 300 types of multi-head spot welding machines, bag cage spot welding machines, mesh welding machines, ton rack welding production lines, resistance automatic 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.