Welding machine generally according to the type of output power supply can be divided into two kinds, one is the AC power supply, a direct current. They use the principle of inductance, inductance in the connection and disconnection will produce a huge voltage change, the use of positive and negative poles in the instantaneous short-circuit high-voltage arc to melt the solder on the electrode to make them achieve the purpose of atomic bonding.
Principle:
It is the use of positive and negative poles in the instantaneous short-circuit generated by the high temperature arc to melt the solder on the electrode and the material being welded to achieve the purpose of combining them. The structure of the welding machine is very simple, to put it bluntly is a high-power transformer, 220/380V AC power into a low voltage, high current power supply, can be DC or AC. Welding transformers have their own characteristics, which are characterized by a sharp voltage drop. After the ignition of the electrode voltage drop, the regulation of the working voltage in the welding machine, in addition to a 220/380V voltage change, the secondary coil also has a tap to change the voltage, while there is also an iron core to regulate the adjustable iron core welding machine is generally a high-power transformer, the Department of the use of the principle of inductance made of inductance in the connecting and disconnecting will produce a huge change in the voltage, the use of the positive and negative poles in the instantaneous Short-circuit high-voltage arc to melt the solder on the electrode. To achieve the purpose of making them combined. Apply voltage between the electrode and the workpiece, through the sassafras or contact to ignite the arc, with the energy of the arc to melt the electrode and heat the base material.