Title:
SURFACE-TREATED STEEL SHEET, AND METHOD FOR MANUFACTURING SURFACE-TREATED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2020/110750
Kind Code:
A1
Abstract:
A surface-treated steel sheet is provided, which comprises a steel sheet and a deposited layer formed on one surface or both surfaces of the steel sheet and containing metal zinc, wherein the deposited layer further contains at least one component selected from the group consisting of a vanadium oxide, a vanadium hydroxide, a zirconium oxide and a zirconium hydroxide, and the ratio of the area S2 of a peak appearing at 3600 cm-1 which attributes to a hydroxide to the area S1 of a peak appearing at 1600 to 650 cm-1 which attributes to an oxide, i.e., S2/S1, is 0 to 0.3 inclusive in an infrared absorption spectrum obtained by measuring the surface of the deposited layer by reflection method of FT-IR spectroscopy.
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Inventors:
TOSHIN KUNIHIKO (JP)
SHIBAO FUMIO (JP)
OTANI MANABU (JP)
KORATA TAKU (JP)
SHOJI HIROMASA (JP)
MORISHITA ATSUSHI (JP)
SHIBAO FUMIO (JP)
OTANI MANABU (JP)
KORATA TAKU (JP)
SHOJI HIROMASA (JP)
MORISHITA ATSUSHI (JP)
Application Number:
PCT/JP2019/044700
Publication Date:
June 04, 2020
Filing Date:
November 14, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C25D9/10; B32B15/01
Domestic Patent References:
| WO2012133671A1 | 2012-10-04 |
Foreign References:
| JPH0762589A | 1995-03-07 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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