| 摘要 |
PROBLEM TO BE SOLVED: To provide an arc welding device which avoids using a shield gas in a disposable manner.SOLUTION: An arc welding device 100 conducts arc welding while jetting a shield gas 9 supplied from a gas supply mechanism 1 from a welding torch 2. The arc welding device 100 includes a gas recovery mechanism 3 which recovers the shield gas 9 jetted from the welding torch 2 near the welding torch 2 and introduces the shield gas 9 into the gas supply mechanism 1. The arc welding device 100 including the gas recovery mechanism 3 enables a user to recover the shield gas 9 used for the arc welding and reuse components contained in the shield gas 9.SELECTED DRAWING: Figure 1 |
