How to use electric welding machine

First, do a good job of electric leakage protection of the electric welding machine. During the welding operation of the electric welding machine, the electric welding machine should be placed in a dry, insulated and sun-protected position. Prevent the entry of rainwater from causing electric leakage of the welding machine.

Second, do a good job of fire prevention and explosion-proof safety measures at the welding site. Within 10m of the welding operation site of the electric welding machine, flammable and explosive items such as oil, wood, oxygen cylinders, and acetylene generators are not allowed to be stacked. There is sand near the site. Fire extinguishers and other fire-fighting facilities.

Welding machine principle:

It uses the high-temperature arc generated when the positive and negative poles are short-circuited instantaneously to melt the solder on the electrode and the material to be welded to achieve the purpose of combining them. The structure of the electric welding machine is very simple. To put it bluntly, it is a high-power transformer that converts 220/380V AC into a low-voltage, high-current power supply, which can be either DC or AC.

The welding transformer has its own characteristics, that is, it has the characteristics of a sharp drop in voltage. After the electrode is ignited, the voltage drops. In the adjustment of the working voltage of the welding machine, in addition to the one-time 220/380V voltage conversion, the secondary coil also has a tap change voltage, and at the same time, it is adjusted by the iron core. The adjustable iron core electric welding machine is generally It is a high power transformer.

It is made by using the principle of inductance. The inductance will produce a huge voltage change when it is turned on and off. The high-voltage arc generated when the positive and negative poles are short-circuited instantaneously is used to melt the solder on the electrode. the goal of.