| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding torch capable of straightening and injecting shield gas without requiring an orifice to diametrically reduce and miniaturize a tip part, and applying desired welding even to a narrow groove part.SOLUTION: The welding torch comprises a tip body having a shield gas outflow hole for passing a welding wire through the inside, making the shield gas flow and making the shield gas flow out to the outer peripheral side, a tip connected to the tip of the tip body and projecting and arranging the tip part of the welding wire via its tip opening part, a nozzle installed on the outer peripheral side of the tip body and the tip, and a gas lens composed of a porous member and installed between the tip body and the nozzle. The shield gas flowed out to the outer peripheral side of the tip body via the shield gas outflow hole, is straightened via the gas lens, and is injected between the tip body and the nozzle, in its turn, to the outer peripheral side of the tip. |
