| 摘要 |
PROBLEM TO BE SOLVED: To provide a plasma welding torch and a plasma welding device capable of supplying plasma gas of a desired amount between a non-consumable electrode and a base material, and sufficiently supplying shield gas.SOLUTION: A plasma welding torch 100 includes a non-consumable electrode 11 for generating plasma arc PA between a base material W and itself, a nozzle 12 for jetting plasma gas PG and shield gas SG toward the base material W, a plasma gas flow passage 13 through which plasma gas PG is made to flow, and a shield gas flow passage 14 which is separated from the plasma gas flow passage 13 and through which the shield gas SG is made to flow. The amount of plasma gas PG flowing through the plasma gas flow passage 13 and the amount of shield gas SG flowing through the shield gas flow passage 14 are individually adjusted. Thus, the plasma gas PG and the shield gas SG can be separately supplied. |
