Title:
METHOD FOR PRODUCING ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2021/261515
Kind Code:
A1
Abstract:
Provided is a novel and improved method for producing an electromagnetic steel sheet, with which an electromagnetic steel sheet having excellent magnetic properties and coating film adhesion can be produced. This method for producing an electromagnetic steel sheet is characterized by including a step for bringing a solution into contact with an electromagnetic steel sheet which contains, in terms of mass%, more than 0% and not more than 0.10% of C, 2.5-4.5% of Si, 0.01-5.0% of Mn, a total of more than 0% and not more than 0.050% of one or more elements selected from among S, Se and Te, more than 0% and not more than 5.0% of acid-soluble Al, more than 0% and not more than 0.015% of N, and more than 0% and not more than 1.0% of P, with the remainder comprising Fe and impurities, with the solution containing one or more elements selected from among Cu, Hg, Ag, Pb, Cd, Co, Zn and Ni, and the total concentration of these elements being 0.00001-1.0000%.
Inventors:
MORISHIGE NOBUSATO (JP)
MIZUKAMI KAZUMI (JP)
ITABASHI DAISUKE (JP)
MIZUKAMI KAZUMI (JP)
ITABASHI DAISUKE (JP)
Application Number:
PCT/JP2021/023779
Publication Date:
December 30, 2021
Filing Date:
June 23, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D8/12; C23C22/00; C23G1/19; H01F1/147; C22C38/00; C22C38/60
Foreign References:
| JPS621819A | 1987-01-07 | |||
| JPH03243795A | 1991-10-30 | |||
| JP2018168426A | 2018-11-01 | |||
| JPS56130475A | 1981-10-13 | |||
| CN105296849A | 2016-02-03 | |||
| JPS4015644B | ||||
| JPS5113469B2 | 1976-04-28 | |||
| JP2003193141A | 2003-07-09 | |||
| JP2019099827A | 2019-06-24 | |||
| JP2014196559A | 2014-10-16 | |||
| JP2017082276A | 2017-05-18 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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