Title:
HOT PRESS MEMBER AND STEEL PLATE FOR HOT PRESSING
Document Type and Number:
WIPO Patent Application WO/2023/188792
Kind Code:
A1
Abstract:
Provided is a hot press member comprising excellent spot welding properties and cut-part corrosion resistance. The hot press member comprising: a steel plate; a coating layer disposed to at least one surface of the steel plate; and an oxide layer disposed onto the coating layer and having a thickness of 1.0 µm or less. The coating layer has a component composition in mass% of 5.0-55.0％ of Zn, 1.1-8.0％ of Si, 2.0-6.0％ of Mg, 0.01-2.0％ of Sr, and 55.0％ or less of Fe, the remainder being Al and unavoidable impurities.
Inventors:
NISHIIKE RYOTO (JP)
TANAKA MINORU (JP)
SATO RINTA (JP)
MAKIMIZU YOICHI (JP)
TANAKA MINORU (JP)
SATO RINTA (JP)
MAKIMIZU YOICHI (JP)
Application Number:
PCT/JP2023/003268
Publication Date:
October 05, 2023
Filing Date:
February 01, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C2/12; B21D22/20; C21D1/18; C21D9/00; C22C18/04; C22C21/10; C22C30/06; C22C38/00; C22C38/06; C22C38/60; C23C2/06
Domestic Patent References:
| WO2019180853A1 | 2019-09-26 | |||
| WO2018221738A1 | 2018-12-06 | |||
| WO2020108593A1 | 2020-06-04 | |||
| WO2018179395A1 | 2018-10-04 |
Foreign References:
| JP2021085089A | 2021-06-03 | |||
| KR102365409B1 | 2022-02-21 | |||
| JP2018527461A | 2018-09-20 | |||
| JP2021091927A | 2021-06-17 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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