Resistance welding machine is to be welded workpiece pressed between the two electrodes, and the application of current, the use of current flow through the workpiece surface and the adjacent area of the thermal resistance generated by heating to the molten or plastic state, so that the formation of metal-bonded a way.
Resistance welding machine welding methods are mainly spot welding, seam welding, convex welding, butt welding.
Row welding machine belonging to the spot welding, divided into C-type single-row row welder, C-type long row of welding machines and gantry-type long row of welding machine. As the welding electrode for the box electrode, and the upper and lower electrodes for the plane contact, can be a single welding or a row named, such machines are generally not mobile, can only move the workpiece for welding.
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