Title:
NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/210947
Kind Code:
A1
Abstract:
This non-oriented electromagnetic steel sheet comprises a parent-material steel sheet (10) and an insulating film (20) formed on the surface of the parent-material steel sheet (10). The insulating film (20) contains a metal phosphate and an organic resin. The arithmetic average of the center-line average roughness Ra75 of the insulating film (20) in the rolling direction of the parent-material steel sheet (10) and the center-line average roughness Ra75 of the insulating film (20) in a direction perpendicular to the rolling direction is 0.20-0.50 μm. The nitrogen content of the insulating film (20) is 0.05-5.00 mass%.
Inventors:
TAKEDA KAZUTOSHI (JP)
FUKUCHI MINAKO (JP)
NATORI YOSHIAKI (JP)
FUJII HIROYASU (JP)
TAKATANI SHINSUKE (JP)
FUKUCHI MINAKO (JP)
NATORI YOSHIAKI (JP)
FUJII HIROYASU (JP)
TAKATANI SHINSUKE (JP)
Application Number:
PCT/JP2022/016210
Publication Date:
October 06, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D9/46; C22C38/00; C22C38/06; C23C22/00; H01F1/147
Domestic Patent References:
| WO2021054450A1 | 2021-03-25 | |||
| WO2016136515A1 | 2016-09-01 |
Foreign References:
| JP2002249881A | 2002-09-06 | |||
| JPH1046350A | 1998-02-17 | |||
| JPH0741913A | 1995-02-10 | |||
| JP2003213334A | 2003-07-30 | |||
| JP2021060499A | 2021-04-15 | |||
| JP2017141480A | 2017-08-17 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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