Title:
TIG WELDING TORCH
Document Type and Number:
WIPO Patent Application WO/2020/017222
Kind Code:
A1
Abstract:
An object of the present invention is to provide a TIG welding torch with improved cooling performance of a non-consumable electrode, and the present invention provides a TIG welding torch comprising: a non-consumable electrode (2) for generating an arc with a workpiece (S) to be welded; a collet (3) that supports the non-consumable electrode (2) in a state of being inserted therein; a collet body (5) that holds the collet (3) in a state where the non-consumable electrode (2) is projected to the distal end side thereof and that is provided with a flow path (4) through which a cooling liquid W is circulated; a torch nozzle (6) that discharges a shielding gas (G2) toward a weld pool, which is generated by the arc, of the workpiece (S) to be welded, while surrounding the non-consumable electrode (2) with the gas; and a cooling tip (7A) that is attached in a state of being thermally connected to the collet body (5) and that is provided with a central hole (7a) through which the non-consumable electrode (2) is projected from the distal end of the cooling tip.
Inventors:
WADA KATSUNORI (JP)
Application Number:
PCT/JP2019/024197
Publication Date:
January 23, 2020
Filing Date:
June 19, 2019
Export Citation:
Assignee:
TAIYO NIPPON SANSO CORP (JP)
International Classes:
B23K9/29
Foreign References:
| JPS5314639A | 1978-02-09 | |||
| JPS60103578U | 1985-07-15 | |||
| JP2016203187A | 2016-12-08 | |||
| JPH0910943A | 1997-01-14 | |||
| JPS60154506U | 1985-10-15 | |||
| JPS57154506U | 1982-09-28 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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