4. Features of Tungsten Molybdenum Alloy Energized Electrodes For TIG Welding Machine:

This welding method has the following advantages and disadvantages because the arc is burned in argon:

1) Argon has an excellent protective effect and can effectively isolate the surrounding air; it neither reacts chemically with metal nor dissolves in metal, making the metallurgical reaction in the welding process simple and easy to control, thus obtaining high-quality Welds provide good condition.

2) The electrode arc of tungsten-molybdenum alloy is very stable, and it can still burn stably even in the case of a small current (<10A), especially suitable for thin plate material welding.

3) The heat source and filler wire can be controlled separately, so the heat input is easy to adjust, so this welding method can be welded in all directions, and it is also an ideal method to realize single-sided welding and double-sided forming.

4) Since the filler wire does not pass current, there is no splash, and the welding seam is beautiful.

5) AC argon arc welding can automatically remove the oxide film on the surface of the weldment during the welding process. Therefore, some non-ferrous metals with strong chemical activity, such as aluminum, magnesium and alloys, can be successfully welded.

6) The tungsten-molybdenum alloy electrode has poor current-carrying capacity. Excessive current will cause the tungsten electrode to melt and evaporate, and its particles may enter the molten pool and cause tungsten inclusion. Therefore, the deposition rate is small, the penetration depth is shallow, and the productivity is low.

7) The use of argon gas is more expensive, the deposition rate is low, and the argon arc welding machine is more complicated. Compared with other welding methods (such as electrode arc welding, submerged arc welding, and CO2&shy; gas shielded welding), the production cost is higher.

8) The surrounding of the argon arc is greatly affected by the airflow, and it is not easy to work outdoors.