2) Stable output of welding power supply for intermediate frequency welder: Compared with traditional alternating current, the welding DC process is adopted, and the current output is more stable.
3) The digital control of the intermediate frequency welder further improves the current control and measurement accuracy.
4) The welding time accuracy of the intermediate frequency welder is millisecond, and the welding time can be controlled at will.
5) Intermediate frequency welding machine has good economic benefits. However, the intermediate frequency spot welding machine has three-phase load balance, low investment, no power grid transition process and low power consumption.
6) The welding condition range of the intermediate frequency welder is expanded. According to the spot welding specification, the nugget diameter in the stable welding range is 4t(t is the plate thickness). Through the test, in the case of single-phase AC welder spot welding 100, the single-phase rectifier welder is 129 and the intermediate frequency welder is 24 1. For the same plated steel plate, the single-phase AC welder has 1 10 solder joints, and the intermediate frequency welder has 355 solder joints.
7) Balanced input of three-phase electricity, no impact on power grid, stable welding quality and high consistency of welded parts, saving about 35% electricity compared with traditional power frequency welder.
8) The intermediate frequency inverter spot welder outputs intermediate frequency direct current, so the welding strength is higher than that of the traditional AC welder, and the service life of covered electrode is more than doubled. It is an advanced resistance welding equipment in the world at present.