Title:
GRAIN-ORIENTED ELECTROMAGNETIC STEEL PLATE AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/045212
Kind Code:
A1
Abstract:
Provided is a grain-oriented electromagnetic steel sheet capable of obtaining excellent magnetic characteristics which are stable throughout the entire length of a coil. The grain-oriented electromagnetic steel sheet contains by mass%, 0.005% or less of C, 2.0-4.5% of Si, and 0.01-0.5% of Mn, contains by mass ppm, 20 ppm or less of N, less than 50 ppm of each of Se, Te, and O, less than 30 ppm of S, and less than 40 ppm of acid-soluble Al, and further contains less than 30 ppm of Ti in which acid-soluble Ti is included in an amount of 5-25 ppm, with the remainder comprising Fe and inevitable impurities, wherein the grain-oriented electromagnetic steel sheet has 0.05/mm2 or more of precipitates having a particle diameter of 200 nm or more and containing Ti and N.
Inventors:
SHINGAKI YUKIHIRO (JP)
SHIMOYAMA YUSUKE (JP)
HARADA AKIFUMI (JP)
SHIMOYAMA YUSUKE (JP)
HARADA AKIFUMI (JP)
Application Number:
PCT/JP2020/033662
Publication Date:
March 11, 2021
Filing Date:
September 04, 2020
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; C22C38/00; C22C38/60; H01F1/147
Foreign References:
| JPH06228646A | 1994-08-16 | |||
| JP2018505962A | 2018-03-01 | |||
| JP2015004091A | 2015-01-08 | |||
| JPH04293725A | 1992-10-19 | |||
| KR20180073323A | 2018-07-02 | |||
| US1965559A | 1934-07-03 | |||
| JPS4015644B1 | ||||
| JP2000129356A | 2000-05-09 | |||
| JP2006152387A | 2006-06-15 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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