The principle of electric welding machine

It is to use the high temperature arc generated by the positive and negative poles in the instant short circuit to melt the solder and the welding material on the electrode to achieve the purpose of combining them. The structure of the welding machine is very simple, to put it bluntly, it is a high-power transformer, which changes 220/380V AC into a low-voltage, high-current power supply, which can be DC or AC. Welding transformer has its own characteristics, that is, it has the characteristics of a sharp drop in voltage. After the electrode ignition voltage drop, the working voltage adjustment of the welding machine, in addition to a 220/380V voltage conversion, the secondary coil also has a tap conversion voltage, while there is an iron core to adjust, adjustable iron core welding machine is generally a high-power transformer, the principle of the use of inductance, inductance will produce a huge voltage change when switched on and off. The solder on the electrode is melted by the high voltage arc generated by the short circuit of the positive and negative poles. To bring them together.