| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas enclosing mechanism for a processing device capable of sufficiently coating a surface of a metallic wire with a material.SOLUTION: The gas enclosing mechanism comprises: an inner pipe 41 inserting a wire L toward a tip side from a base end side and made of an electric insulation material; an outer pipe 42 housing the inner pipe 41 and made of a metal material; and a gas enclosing part 400 for enclosing inert gas inside the inner pipe 41. Air around the wire L is purged from the inner pipe 41 by enclosing the inert gas in the inner pipe 41 from the gas enclosing part 400, and therefore, oxidation of the wire L can be restrained. |
