Title:
VERTICAL NARROW-GROOVE GAS SHIELDED ARC WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/043086
Kind Code:
A1
Abstract:
In a vertical narrow-groove gas shielded arc welding method by which two thick steel materials (1) having a plate thickness of not less than 10 mm as a predetermined groove condition are joined by single layer welding or multilayer welding using weaving, weaving for initial layer welding is performed using a welding torch (4) having a bent portion and a tip portion defined by the bent portion, wherein, at the time of weaving with respect to groove surfaces (2) of the thick steel materials, the tip portion of the welding torch is swung toward the groove surfaces of the thick steel materials under a predetermined condition.
Inventors:
KATAOKA TOKIHIKO (JP)
HAYAKAWA NAOYA (JP)
OI KENJI (JP)
HAYAKAWA NAOYA (JP)
OI KENJI (JP)
Application Number:
PCT/JP2016/004090
Publication Date:
March 16, 2017
Filing Date:
September 07, 2016
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K9/173; B23K33/00; B23K35/30
Foreign References:
JP2014087832A | 2014-05-15 | |||
JP2001252767A | 2001-09-18 | |||
JP2000000662A | 2000-01-07 |
Attorney, Agent or Firm:
SUGIMURA, Kenji (JP)
Download PDF:
Previous Patent: FIBER FOR TIRE, RUBBER/FIBER COMPLEX, AND TIRE
Next Patent: METHOD FOR EXTRACTING SUBSTANCE FROM FECES SAMPLE
Next Patent: METHOD FOR EXTRACTING SUBSTANCE FROM FECES SAMPLE