Welding shield gas and welding method

Details Welding shield gas and welding method Welding shield gas and welding method

B - Operations, Transporting

23

K

B23K 35/38 (2006.01) B23K 9/167 (2006.01) B23K 9/23 (2006.01)

Patent

CA 2462176

A welding shield gas comprising an inert gas and nitrogen gas, where . the concentration of the nitrogen gas is 1 to 95 vol%; or comprising an inert gas and a helium gas, where the concentration of the helium gas is 35 to 95 vol%; or comprising an inert gas, nitrogen gas, and a helium gas, wherein the concentration of the nitrogen gas is not less than 1 vol% and less than 65 vol% and the concentration of the helium gas is 35 to 95 vol%. This shield gas can be used in the non-consumable electrode arc welding of a welded material consisting of stainless steel.

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