Title:
HOT STAMPING COMPONENT AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/277292
Kind Code:
A1
Abstract:
A hot stamping component according to one embodiment of the present invention comprises: a steel sheet; a plating layer positioned on the steel sheet and comprising Zn; and a surface layer positioned on the plating layer, wherein the surface layer comprises: a post-treatment layer comprising a Si-based inorganic post-treatment agent; a Zn oxide layer positioned, on the plating layer, in the same layer as the post-treatment layer; and an interdiffusion layer, which is positioned between the plating layer and the post-treatment layer and/or the Zn oxide layer so as to overlap with the post-treatment layer and/or the Zn oxide layer, and comprises at least one from among Si, Mn, O, Fe, Zn and SiO, and the tensile strength of the steel sheet is 1,680 MPa or higher.
Inventors:
JANG MIN HO (KR)
CHANG KUN WOO (KR)
CHANG KUN WOO (KR)
Application Number:
PCT/KR2022/001490
Publication Date:
January 05, 2023
Filing Date:
January 27, 2022
Export Citation:
Assignee:
HYUNDAI STEEL CO (KR)
International Classes:
C23C28/00; B21D22/02; C21D9/46; C23C2/06; C23C2/26; C23C2/28
Foreign References:
| JP2011117036A | 2011-06-16 | |||
| KR20190115024A | 2019-10-10 | |||
| JP2007291508A | 2007-11-08 | |||
| JP2015108193A | 2015-06-11 | |||
| JP2020180312A | 2020-11-05 | |||
| KR20170076009A | 2017-07-04 | |||
| KR20180095757A | 2018-08-28 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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