Title:
GAS SUPPLY DEVICE, GAS SUPPLY DEVICE HAVING MIXING FUNCTION, WELDING DEVICE, AND GAS SUPPLY METHOD
Document Type and Number:
WIPO Patent Application WO/2017/057400
Kind Code:
A1
Abstract:
The purpose of the invention is to provide: a gas supply device with which it is possible to reduce costs and improve maintainability, and with which it is possible to prevent a sudden flow of shield gas occurring at the beginning of discharging a shield gas from a shield gas supply source; a gas supply device having a mixing function; a welding device; and a gas supply method. This gas supply device comprises: a shield gas supply source (21) filled with a shield gas at high pressure; a single-stage decompressor (22) that is provided to a shield gas outlet of the shield gas supply source (21), and that reduces the pressure of the shield gas discharged from the shield gas supply source (21) to a predetermined pressure; a shield gas supply line (23) having one end connected to the single-stage decompressor (22) and the other end connected to a place where the shield gas is to be used; a solenoid valve (24) provided to the shield gas supply line (23); and a flow-rate adjustment valve (25) provided to the shield gas supply line (23) in a position between the solenoid valve (24) and the place of usage.
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Inventors:
WADA KATSUNORI (JP)
TODA KAZUFUMI (JP)
TODA KAZUFUMI (JP)
Application Number:
PCT/JP2016/078525
Publication Date:
April 06, 2017
Filing Date:
September 27, 2016
Export Citation:
Assignee:
TAIYO NIPPON SANSO CORP (JP)
International Classes:
F17C13/00; B23K9/16; F17C7/00
Foreign References:
| JPS52148825A | 1977-12-10 | |||
| JPH09314332A | 1997-12-09 | |||
| JP2011202685A | 2011-10-13 | |||
| JPS607500U | 1985-01-19 | |||
| JP2009502504A | 2009-01-29 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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