There are many types of spot welders, so what advantages does it have in the market for intermediate frequency spot welders?
First, the forward, welding effect, inverter DC spot welding machine time adjustment resolution can reach 0.25ms (4kHz inverter frequency), high control accuracy. The response speed of the feedback control of the inverter welding machine is significantly faster, and the output stability is good. The output current of the inverter DC spot welding machine is pulsating DC, and it is continuous DC output under the action of the loop inductance. It has high thermal efficiency and stable welding heat input.
Second, the welding is well formed. The inverter resistance spot welding machine has a DC output, and the heating is concentrated, and the welding time is shortened. Therefore, the effect is very good when strong welding is performed, and the non-marking effect is good. It can directly weld computer cases, and other high-end welding.
Third, power saving and environmental protection, the inverter welding machine transformer works at a higher frequency (1-4kHz), the loss is small, the DC output improves the power factor, and the energy saving effect is obvious.
Fourth, the structure of the equipment is reasonable and convenient to install. The inverter DC resistance spot welding machine transformer is greatly reduced, and the equipment is lighter.
The intermediate frequency spot welding machine adopts strong standard welding, that is, a large current for a short time, which increases the contact resistance between workpieces and generates less heat.