The characteristics of the intermediate frequency spot welder determine that it is very suitable for hard specification welding, that is, short time, high current. The automotive industry has a large number of parts that need to be welded with nuts, bolts and multi-point projection welding. The performance of projection welding is very complete, so the intermediate frequency inverter spot projection welding machine has a wide application space in the projection welding of parts in the automotive industry.
Nuts and bolts for the automotive industry are convex welded with four corners, hexagons, circles, special shapes, etc. According to the boss, there are bumps, ribs, crescent convexes, annular convexes, etc. These nuts / bolts are welded to the plate by hard specification welding. The energy storage welding machine has excellent performance when projecting these products, which can ensure the strength without damaging the screw teeth, especially nowadays more and more high-strength plates and thermoformed plates are used. The physical properties of these materials Performance makes it more difficult for general welders to achieve a stable projection welding effect, while capacitor energy storage welding machines have great current output in a very short time, which is very suitable for projection welding of these products.
For better connection strength and efficiency of some parts in the automotive industry, multi-point projection welding is used. During projection welding, the same current and pressure must be distributed at each welding point. The instantaneous DC output and peak value of the intermediate frequency inverter spot welding machine High characteristics can fully distribute the current to each convex welding point, and supplemented by rigid pressure to make multi-bump welding sufficient and balanced under pressure. The strength of the connection after welding is very high, which also makes the intermediate frequency inverter spot welding machine The industry is becoming more widely used.