Title:
SURFACE-TREATED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2022/149596
Kind Code:
A1
Abstract:
This surface-treated steel sheet comprises a steel sheet, a Zn-based plated layer formed on the steel sheet, and a film formed on the Zn-based plated layer, wherein: the Si concentration, P concentration, F concentration, V concentration, Zr concentration, Zn concentration, and Al concentration in the film are, in terms of mass%, 10.00-25.00% for Si, 0.01-5.00% for P, 0.01-2.00% for F, 0.01-4.00% for V, 0.01-3.00% for Zr, 0-3.00% for Zn, and 0-3.00% for Al; and in a narrow spectrum of Si2p obtained by performing XPS analysis on the surface of the film, the ratio of the integrated intensity of a peak having the maximum value in 103.37±0.25 eV to the integrated intensity of a peak having the maximum value in 102.26±0.25 eV is 0.04-0.25.
Inventors:
SHIMIZU ATSUO (JP)
TOKUDA IKUMI (JP)
SHOJI HIROMASA (JP)
AKIOKA KOJI (JP)
TOKUDA IKUMI (JP)
SHOJI HIROMASA (JP)
AKIOKA KOJI (JP)
Application Number:
PCT/JP2022/000228
Publication Date:
July 14, 2022
Filing Date:
January 06, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C23C28/00; C23C22/00; C23C22/07; C23C22/40; C23C22/44; C23C22/80
Domestic Patent References:
| WO2020189769A1 | 2020-09-24 | |||
| WO1997000337A1 | 1997-01-03 |
Foreign References:
| JP2018505314A | 2018-02-22 | |||
| JP2012077322A | 2012-04-19 | |||
| JP2014214315A | 2014-11-17 | |||
| JP2018062710A | 2018-04-19 | |||
| JP2004263252A | 2004-09-24 | |||
| JP2021001011A | 2021-01-07 | |||
| JP6191806B1 | 2017-09-06 | |||
| JP6272207B2 | 2018-01-31 | |||
| JP4776458B2 | 2011-09-21 |
Other References:
See also references of EP 4242345A4
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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