Title:
NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND PRODUCTION METHOD OF NON-ORIENTED ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2018/131710
Kind Code:
A1
Abstract:
This non-oriented electromagnetic steel sheet has a chemical composition containing, in mass%, C: greater than 0% and less than or equal to 0.0050%, Si: 3.0-4.0%, Mn: 1.0-3.3%, P: greater than 0% and less than 0.030%, S: greater than 0% and less than or equal to 0.0050%, sol. Al: greater than 0% and less than or equal to 0.0040%, N: greater than 0% and less than or equal to 0.0040%, O: 0.0110-0.0350%, Sn: 0-0.050%, Sb: 0-0.050%, and Ti: greater than 0% and less than or equal to 0.0050%, the remainder being Fe and impurities; Sn+Sb: less than or equal to 0.050%, Si-0.5×Mn: greater than or equal to 2.0%. The O content in the center of the plate in thickness direction, which excludes the surface layer portions extending from the top surface and the back surface to a depth of 10 µm is less than 0.0100%.
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Inventors:
YASHIKI HIROYOSHI (JP)
NATORI YOSHIAKI (JP)
TAKEDA KAZUTOSHI (JP)
MUKAWA SUSUMU (JP)
MATSUMOTO TAKUYA (JP)
FUJITA KOJI (JP)
MOROHOSHI TAKASHI (JP)
MIYAZAKI MASAFUMI (JP)
NATORI YOSHIAKI (JP)
TAKEDA KAZUTOSHI (JP)
MUKAWA SUSUMU (JP)
MATSUMOTO TAKUYA (JP)
FUJITA KOJI (JP)
MOROHOSHI TAKASHI (JP)
MIYAZAKI MASAFUMI (JP)
Application Number:
PCT/JP2018/000974
Publication Date:
July 19, 2018
Filing Date:
January 16, 2018
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C22C38/00; C21D8/12; C21D9/46; C22C38/60; H01F1/147
Foreign References:
| JP2015206092A | 2015-11-19 | |||
| JP2016041832A | 2016-03-31 | |||
| JP2016145376A | 2016-08-12 | |||
| JP2016138316A | 2016-08-04 | |||
| JP2000256751A | 2000-09-19 | |||
| KR20140084896A | 2014-07-07 |
Other References:
See also references of EP 3569726A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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