Title:
SOLID-PHASE WELDING METHOD AND SOLID-PHASE WELDING JOINT
Document Type and Number:
WIPO Patent Application WO/2023/162502
Kind Code:
A1
Abstract:
The problem of the present invention is to provide a solid-phase welding method which easily and efficiently suppresses the softening of a heat-affected zone when steel is used as a material to be welded and a solid-phase welding joint which is obtained by the solid-phase welding method and in which the softening of the heat-affected zone is suppressed. The present invention provides a solid-phase welding method for steel which uses steel as at least one of materials to be welded, the solid-phase welding method being characterized in that the steel has an additive element for causing secondary hardening and forms a region in which the maximum temperature of the steel reaches the A1 temperature of the steel during the welding with the A1 temperature set as a temperature that causes secondary hardening.
Inventors:
FUJII HIDETOSHI (JP)
USHIODA KOHSAKU (JP)
MORISADA YOSHIAKI (JP)
USHIODA KOHSAKU (JP)
MORISADA YOSHIAKI (JP)
Application Number:
PCT/JP2023/000938
Publication Date:
August 31, 2023
Filing Date:
January 16, 2023
Export Citation:
Assignee:
UNIV OSAKA (JP)
International Classes:
B23K20/12; C21D9/46; C22C38/00; C22C38/12
Domestic Patent References:
| WO2015068386A1 | 2015-05-14 |
Foreign References:
| JP2000503903A | 2000-04-04 | |||
| JP2012172344A | 2012-09-10 | |||
| JP2001502021A | 2001-02-13 | |||
| JPH03500025A | 1991-01-10 |
Attorney, Agent or Firm:
IPR CONSULTANT PPC (JP)
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