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Title:
溶接トーチ及びその溶接トーチを備えた溶接装置並びに溶接方法
Document Type and Number:
Japanese Patent JP7337120
Kind Code:
B2
Abstract:
To provide an air-cooling welding torch which does not have a cooling water flow channel for cooling an electrode, has the high heat resistance of an electrode holder, has such a shape that allows easy replacement and can suppress a cost of a replacement component.SOLUTION: A welding torch 1A according to the present invention comprises: an electrode holder 2; and an electrode 3 which is held by the electrode holder 2. In the air-cooling welding torch 1A, the electrode 3 is held so as to be inclined in the electrode holder 2. The material of the electrode holder 2 is a tungsten alloy. A welding device includes a nozzle which blows out gas around the electrode 3 of the welding torch 1A. The welding device performs welding in such a state that the electrode 3 is held so as to be inclined in the electrode holder 2, and changes the inclination angle of the electrode 3 every time the electrode holder 2 is replaced.SELECTED DRAWING: Figure 1(b)

Inventors:
Liu Sakun
Toshihide Kumagai
Application Number:
JP2021088079A
Publication Date:
September 01, 2023
Filing Date:
May 26, 2021
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B23K9/29
Domestic Patent References:
JP5057447A
JP63016575U
JP58119973U
JP2015523219A
JP2002103042A
Attorney, Agent or Firm:
Polaire Patent Attorneys Corporation