Title:
WELDING TORCH
Document Type and Number:
Japanese Patent JP2023097594
Kind Code:
A
Abstract:
To provide a welding torch suited to weld low-temperature molten metal while simplifying a structure and downsizing an end part.SOLUTION: A welding torch A1 includes: an electrode 25 extending into an axial line CL direction; a first member 30 arranged outside the electrode 25; an inner nozzle 35 arranged outside the electrode 25; an engaging member 38 which is outwardly-fitted across the first member 30 and the inner nozzle 35 and engages both the first member 30 and the inner nozzle 35; an outer nozzle 36 arranged outside the inner nozzle 35; and a centering member 39 arranged outside the electrode 25 and inside the inner nozzle 35. The centering member 39 is concentrically outwardly-fitted to the electrode 25, the inner nozzle 35 is concentrically outwardly-fitted to the centering member 39, a first gas passage G1 flowing first inactive gas is formed between the electrode 25 and the inner nozzle 35, and a second gas passage G2 flowing second inactive gas is formed between the inner nozzle 35 and the outer nozzle 36.SELECTED DRAWING: Figure 4
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Inventors:
TAKADA CHIKARA
Application Number:
JP2021213804A
Publication Date:
July 10, 2023
Filing Date:
December 28, 2021
Export Citation:
Assignee:
DAIHEN CORP
International Classes:
B23K10/00; B23K10/02
Attorney, Agent or Firm:
Hisashi Usui
Shintaro Suzuki
Shintaro Suzuki
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