Isn't it? I feel OK, the first time there is no argon, the air can be usedThe nitrogen reacts with the air after the arc is electrically shocked, producing nitric oxide and starting to act as a protective agent. Wrong, this reaction occurs only at the periphery, and the reaction at the nozzle is pure nitrogen. There is no such problemHarmful gases can be solved by ventilation. What I care about is that if the metal nitrides are produced during welding, they will get very good welding hardness and corrosion resistance. Can they do so?The pure air did not work, and the tungsten electrode was soon ablated,
Argon arc welding is also called argon gas shielded welding. That is, argon arc protective gas is applied around the arc welding to isolate the air from the welding zone, so as to prevent the oxidation of the welding zone
Argon is an inert gas that blocks air and protects the workpiece from oxidation at high temperatures. The nitrogen reacts with the air after the arc is electrically shocked, producing nitric oxide and starting to act as a protective agent.
May not！ Argon arc welding machines can only be used: welding and argon arc welding! I'm glad to answer that for you!
