Introduction to Argon Arc Welding Technology

Argon arc welding is a welding technology that uses argon as a protective gas. Also called argon gas shielded welding. It is to pass argon protective gas around the arc welding to isolate the air from the welding area and prevent oxidation of the welding area.

Argon arc welding technology is based on the principle of ordinary arc welding, using argon gas to protect metal welding materials, and using high current to melt the welding materials into a liquid state on the base material to be welded to form a molten pool, so that the metal to be welded and the welding material are A welding technology that achieves metallurgical bonding of materials. Since argon gas is continuously supplied during high-temperature molten welding, the welding material cannot come into contact with oxygen in the air, thereby preventing the oxidation of the welding material. Therefore, stainless steel and iron hardware metals can be welded .

The reason why argon arc welding is so widely used is mainly because of the following advantages.
1. Argon gas protection can isolate the adverse effects of oxygen, nitrogen, hydrogen, etc. in the air on the arc and molten pool, reduce the burning loss of alloy elements, and obtain dense, spatter-free, and high-quality welding joints;
2. The arc combustion of argon arc welding is stable, the heat is concentrated, the arc column temperature is high, the welding production efficiency is high, the heat affected zone is narrow, and the stress, deformation and crack tendency of the welded parts are small;
3. Argon arc welding is open arc welding, which is easy to operate and observe;
4. The electrode loss is small, the arc length is easy to maintain, and there is no flux or coating layer during welding, so it is easy to implement mechanization and automation;
5. Argon arc welding can weld almost all metals, especially some refractory metals and easily oxidized metals, such as magnesium, titanium, molybdenum, zirconium, aluminum, etc. and their alloys;
6. It is not restricted by the position of the weldment and can be welded in all positions.Argon arc welding is a welding technology that uses argon as a protective gas. Also called argon gas shielded welding. It is to pass argon protective gas around the arc welding to isolate the air from the welding area and prevent oxidation of the welding area.