mash welder

Spot welding machine adopts the principle of double-sided and double-point over-current welding. When two electrodes press the workpiece, the two metal layers form a certain contact resistance under the pressure of two electrodes. When the welding current flows from one electrode to another, the two contact resistance points form a instantaneous hot fusion, and the welding current flows from the other electrode to the two electrodes to form a circuit instantaneously, without harming the welded worker. The internal structure of the parts.