Joke Collection Website - Mood Talk - Why can DC argon arc welding machine only weld Bai Gang, stainless steel and the like, but not aluminum? What is the reason? Heroes, tell me the principle. Thank you.
Why can DC argon arc welding machine only weld Bai Gang, stainless steel and the like, but not aluminum? What is the reason? Heroes, tell me the principle. Thank you.
Aluminum can't be welded because: aluminum has high activity, and there is a high melting point oxide film on the surface of aluminum, and new oxidation occurs during welding.
Automatic TIG welding can remove aluminum oxide film, but I don't know why.
Can the "DC 200 manual and argon arc welding" dual-purpose machine be understood as "DC arc welding with coated covered electrode and DC tungsten argon arc welding"? If so, then:
2.5mm carbon steel can be used for covered electrode welding of carbon steel. It is very difficult to weld stainless steel with 2.5mm stainless steel covered electrode.
DC TIG welding can continuously weld stainless steel or carbon steel within 1.5mm by using current within 60 A, and the diameter of manual welding wire is1.5-2 mm. 6-8 mm stainless steel or carbon steel can also be intermittently welded with 200 A current, and the diameter of manual welding wire is 2.5-3 mm.
I don't understand the meaning of "Bai Gang".
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