Title:
MACHINE FOR PARTIALLY ANNEALING HOLLOW VALVE
Document Type and Number:
WIPO Patent Application WO/2023/218549
Kind Code:
A1
Abstract:
Provided is a machine for partially annealing a friction pressure welding part of a hollow valve, characterized in that only a friction pressure welding part and a part thermally affected by friction pressure welding are annealed using a heating coil of a high-frequency heating system.
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Inventors:
HONJO KENTA (JP)
KAGOHASHI YUSUKE (JP)
TANAKA YASUHIKO (JP)
KAGOHASHI YUSUKE (JP)
TANAKA YASUHIKO (JP)
Application Number:
PCT/JP2022/019916
Publication Date:
November 16, 2023
Filing Date:
May 11, 2022
Export Citation:
Assignee:
FUJI VALVE (JP)
International Classes:
F01L3/24
Domestic Patent References:
| WO2013145250A1 | 2013-10-03 |
Foreign References:
| CN107350750A | 2017-11-17 | |||
| JPH08501497A | 1996-02-20 |
Attorney, Agent or Firm:
YOKOBORI Yoshinori et al. (JP)
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