Mig welder welding torch welding gun

A gas shielded welding torch is a welding torch used for gas metal shielded welding. The nozzle of the welding torch is insulated with ceramics, which is not easy to be burned at high temperature; the overall resistance of the gooseneck seat is low, and the current flows less heat, and the built-in high-efficiency heat exchanger makes the cooling effect of the shielding gas fully play; the ceramic cover at the front end of the contact tip can be Prevent the contact tip from being directly radiated by the arc, and the temperature is too high; the front end of the wire feeding hose is soft, which can prevent the wire from being unstable due to excessive bending of the welding wire.These changes reduce the heat generation of the welding torch, strengthen the cooling, and are not easy to be damaged under high temperature. This welding torch is especially suitable for CO2 welding with high current or argon-rich welding conditions.

The existing gas-shielded welding torch cable is made of air supply pipe, control line, copper wire conductor and cable sheath. The key component is the cable sheath. The material of the existing welding torch cable sheath is rubber, plastic or radiation Cross-linked, the working temperature of these two materials is 60-120 degrees, if the welding current is large, the copper wire conductor heats up, and the heating temperature exceeds the working temperature of the welding torch cable sheath, which will cause the cable sheath material to heat up and become hard , cracking, resulting in damage to the cable

According to different wire feeding methods, welding torches can be divided into two types: wire-drawing welding torches and wire-pushing welding torches.

The push wire welding torch generally adopts the gooseneck type and the pistol type, and the welding wire reel is installed on the wire feeder reel. The main features of this welding gun are uniform and stable wire feeding speed and large range of motion. This kind of welding torch has simple structure and flexible operation, but the welding wire is subject to relatively large frictional resistance when passing through the hose, so only welding wire with a diameter of 0.8 mm or more can be used for welding. Since the wire feeding mechanism and the welding wire are all mounted on the welding torch, the structure of the welding torch is relatively complicated, and only thin welding wire with a diameter of 0.8 mm or less can be used for welding.