Spot welding machines are widely used in crafts, electronic components, instruments and meters, electrical switches, cable manufacturing, filters, silencers and other manufacturing industries. Clean the surface of the weldment during operation. After accurate assembly, send it between the upper and lower electrodes and apply pressure to make it contact well; The contact surfaces of the two workpieces are heated and partially melted by power on to form Nuggets; Maintain the pressure after power failure to make the nugget cool and solidify under pressure to form solder joints. The equipment has the function of voltage data detection during welding to easily know the voltage fluctuation during welding.
How to use spot welder more safely?
All dirt, oil stain, scale and rust must be removed before steel weldments are welded. For hot-rolled steel, it is best to pickle, sand blast or remove the scale with grinding wheel. Although the unclean weldment can be spot welded, it seriously reduces the service life of the electrode and the production efficiency and quality of spot welding. Medium and low carbon steel with thin coating can be welded directly.
First connect the cooling water and then the power supply for welding. Procedure of welding process: place the weldment between the two electrodes, step on the foot pedal, and make the upper electrode contact with the weldment and pressurize. When the foot pedal is continuously pressed, the power contact switch is connected, so the transformer starts to work, and the secondary circuit is energized to heat the weldment. When the pedal is released after welding for a certain time, the electrode rises, and the power supply is cut off first and then restored to the original state by the tension of the spring, and the single point welding process is over.
Power on inspection is necessary when using the spot welding machine, which is an important link when using the spot welding machine. Sometimes the electrical equipment may be exposed. Of course, there may be leakage in our gas circuit system, so we must check it before use, so as to ensure the safety of our production.
Spot welding machines are divided into power frequency welding machines, pulse welding machines and frequency conversion welding machines according to the supply mode of electric energy. With adjustable stroke cylinder and fast solenoid valve, it is easy to operate, fast welding speed, save energy and improve production efficiency.
