Title:
WELDING STRUCTURE, METHOD FOR DESIGNING SAME, AND METHOD FOR CONSTRUCTING SAME
Document Type and Number:
WIPO Patent Application WO/2023/007860
Kind Code:
A1
Abstract:
Provided is a welding structure 10 having a T-joint part in which a joining member 11 is partially penetration-welded at both sides to a joining-receiving member 12 in a state in which an end surface 11c of the joining member 11 is butted against a joining-receiving surface 12a of the joining-receiving member 12. The joining member 11 has a first surface 11a and a second surface 11b, the plate thickness t (mm) of the joining member 11 is 50.0 mm or greater, and the nil-ductility transition temperature of the joining member 11 at positions at a depth of 1 mm from the first surface 11a and second surface 11b is −80°C or lower. The partial penetration d1 (mm) of a joint of a first welding metal 13a and the partial penetration d2 (mm) of a joint of a second welding metal 13b is 16 mm or greater. The nil-ductility transition temperature of the joining member 11 at a position at a depth of d1 (mm) from the first surface 11a and at a position at a depth of d2 (mm) from the second surface 11b is −60°C or lower.
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Inventors:
OKAWA TEPPEI (JP)
ODA NAOKI (JP)
SHIMANUKI HIROSHI (JP)
YONEZAWA TAKAYUKI (JP)
INOUE TAKEHIRO (JP)
ODA NAOKI (JP)
SHIMANUKI HIROSHI (JP)
YONEZAWA TAKAYUKI (JP)
INOUE TAKEHIRO (JP)
Application Number:
PCT/JP2022/015906
Publication Date:
February 02, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B23K31/00; B23K9/00; B23K9/02; G01N3/30
Domestic Patent References:
| WO2020136777A1 | 2020-07-02 | |||
| WO2013168429A1 | 2013-11-14 |
Foreign References:
| JP2020041966A | 2020-03-19 | |||
| JP2020117779A | 2020-08-06 | |||
| JP2021094573A | 2021-06-24 | |||
| JP2012052873A | 2012-03-15 | |||
| JP2018039052A | 2018-03-15 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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