Title:
METHOD FOR PRODUCING TIG WELDED STAINLESS STEEL TUBE, TIG WELDED STAINLESS STEEL TUBE, AND TIG WELDED STAINLESS MEMBER
Document Type and Number:
WIPO Patent Application WO/2017/209282
Kind Code:
A1
Abstract:
Provided is a method for producing a TIG welded stainless steel tube that makes it possible to curb the occurrence of welding flaws without the need to mix H2 into a shielding gas. In the method for producing a TIG welded stainless tube, a welded stainless steel tube is produced by bending a stainless steel strip in the width direction, butting two edges together, and subjecting the same to TIG welding, and a pulse waveform having a pulse frequency of 40 to 300 Hz is used as a current waveform in a welding power source.
Inventors:
NAKAKO TAKEFUMI (JP)
NOBUTOKI TOMOKAZU (JP)
ASADA HIROSHI (JP)
NOBUTOKI TOMOKAZU (JP)
ASADA HIROSHI (JP)
Application Number:
PCT/JP2017/020619
Publication Date:
December 07, 2017
Filing Date:
June 02, 2017
Export Citation:
Assignee:
NISSHIN STEEL CO LTD (JP)
International Classes:
B23K9/025; B23K9/095; B23K9/167; B23K9/23; C22C38/00; C22C38/40; C22C38/44
Foreign References:
| JPH0327875A | 1991-02-06 | |||
| JPS6195781A | 1986-05-14 | |||
| JPS57126954A | 1982-08-06 | |||
| JPH04220114A | 1992-08-11 | |||
| JP2001115238A | 2001-04-24 |
Other References:
See also references of EP 3466579A4
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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