Title:
TANK MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/024679
Kind Code:
A1
Abstract:
Provided is a tank manufacturing method for manufacturing a tank by joint-welding steel sheets from which the tank is to be configured, the method comprising: a step for performing multilayer welding such that a plurality of weld layers are formed successively between opposing ends of the sheets toward the upper surface side of the sheets; and a step for performing a process for reducing residual stress locally only for some of the plurality of weld layers that are positioned on the upper surface side.
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Inventors:
WATANABE MICHIHISA (JP)
KUBO TOSHIYUKI (JP)
KUBO TOSHIYUKI (JP)
Application Number:
PCT/JP2023/026824
Publication Date:
February 01, 2024
Filing Date:
July 21, 2023
Export Citation:
Assignee:
MITSUBISHI SHIPBUILDING CO LTD (JP)
International Classes:
B23K31/00; B23K9/00; B23K26/356; C21D1/26; C21D1/34; C21D1/42; C21D7/06; C21D9/00; C21D9/50
Foreign References:
| JPH06218573A | 1994-08-09 | |||
| JP2004042133A | 2004-02-12 | |||
| JP2009161802A | 2009-07-23 | |||
| JPS53137045A | 1978-11-30 | |||
| JP2006035292A | 2006-02-09 | |||
| JPH10146688A | 1998-06-02 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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