Title:
SURFACE-TREATED STEEL SHEET AND METHOD FOR PRODUCING SURFACE-TREATED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2020/009212
Kind Code:
A1
Abstract:
A surface-treated steel sheet according to the present invention comprises a base material steel sheet and a Ni-Co-Fe alloy plating layer formed on at least one surface of the base material steel sheet, wherein the alloy plating layer has a Ni deposition amount of 7.1 to 32.5 g/m2 and a Co deposition amount of 0.65 to 5.2 g/m2, and the sum total of the Ni deposition amount and the Co deposition amount is 9.0 to 35.0 g/m2. In an outermost layer of the alloy plating layer, the Co concentration is 20 to 60 at.% and the Fe concentration is 5 to 30 at.%. In the alloy plating layer, the sum total of the Ni concentration and the Co concentration is 10 at.% or more, an area having a Fe concentration of 5 at.% or more is formed at a thickness of 2 μm or larger, the base material steel sheet has a specified chemical composition, and the ferrite grain size number is 9.0 or higher.
Inventors:
TAKAHASHI TAKEHIRO (JP)
SAITO MAMORU (JP)
ISHIZUKA KIYOKAZU (JP)
GOTO YASUTO (JP)
SAITO MAMORU (JP)
ISHIZUKA KIYOKAZU (JP)
GOTO YASUTO (JP)
Application Number:
PCT/JP2019/026779
Publication Date:
January 09, 2020
Filing Date:
July 05, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C25D5/12; C22C38/00; C22C38/14; C25D5/26; C25D5/50; C25D7/00; H01M4/66; H01M50/10; C21D9/46
Domestic Patent References:
| WO2012147843A1 | 2012-11-01 | |||
| WO2003098718A1 | 2003-11-27 | |||
| WO2013005774A1 | 2013-01-10 | |||
| WO2018181950A1 | 2018-10-04 | |||
| WO2018159760A1 | 2018-09-07 | |||
| WO2012147843A1 | 2012-11-01 | |||
| WO2016158004A1 | 2016-10-06 |
Foreign References:
| JP2007122940A | 2007-05-17 | |||
| JP2002212673A | 2002-07-31 | |||
| JP2008179877A | 2008-08-07 | |||
| CN101954762A | 2011-01-26 | |||
| JP2015076151A | 2015-04-20 | |||
| JP2012048958A | 2012-03-08 | |||
| JP2018128847A | 2018-08-16 | |||
| JP2016186950A | 2016-10-27 | |||
| JP2014047359A | 2014-03-17 |
Other References:
I. SEREBRENNIKOVA: "Can-Cathode Interface in Alkaline Zn/Mn0 Batteries: Optimization of Can Plating Composition", J. ELECTROCHEM. SOC., vol. 154, no. 9, 2007, pages C487 - C493
TETSU-TO-HAGANE, THE JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, vol. 71, no. 13, 5 September 1985 (1985-09-05), pages 1276
TETSU-TO-HAGANE, THE JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, vol. 71, no. 13, 5 September 1985 (1985-09-05), pages 1276
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF:
Previous Patent: SEARCH DEVICE AND PROGRAM
Next Patent: SURFACE-TREATED STEEL SHEET AND METHOD FOR MANUFACTURING SURFACE-TREATED STEEL SHEET
Next Patent: SURFACE-TREATED STEEL SHEET AND METHOD FOR MANUFACTURING SURFACE-TREATED STEEL SHEET