What is the difference between the welding process of argon arc welding and two-shielded welding

The principle of two bonded welding is that the wire and the weldment are used as two electrodes to produce an electric arc, and the heat of the arc is used to melt the metal, and carbon dioxide gas is used as a shielding gas to protect the arc and the molten pool, so as to obtain a good welded joint.

1, two bonded welding full name: carbon dioxide gas shielded welding, is a welding method.

2, this welding method has now become one of the most important welding methods for ferrous materials.

3, features:

(1) low welding cost. Its cost is only 40~50% of the submerged arc welding, electrode arc welding.

(2) high productivity. Its productivity is 1~4 times that of electrode arc welding.

(3) easy to operate. Bright arc, the thickness of the workpiece is not limited, can be all-position welding and can be downward welding.

(4) high crack resistance of the weld. Weld low hydrogen and less nitrogen.

(5) less deformation after welding. Angular deformation of five thousandths, unevenness of only three thousandths.

(6) welding spatter is small. When the use of ultra-low carbon alloy wire or flux-cored wire, or the addition of Ar in CO2, can reduce welding spatter.