Title:
NON-ORIENTED ELECTROMAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING SAME, AND HOT-ROLLED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2022/113263
Kind Code:
A1
Abstract:
A non-oriented electromagnetic steel sheet, including, in wt. %, 0.0050% or less of C, 0.10-1.50% of Si or less, 0.10-1.50% of Mn, 0.0050% or less of sol. Al, 0.0030% or less of N, 0.0040% of S or less, and 0.0050-0.0200% or less of O, including a total of 0.0005-0.0200% of one or more elements selected from the group consisting of La, Ce, Zr, Mg, and Ca, the remainder being Fe and impurities, wherein the number density N of an appropriate oxide is 3.0 × 103 to 10 × 103/cm2, and the number density n of La and other included oxides satisfies n / N ≥ 0.01.
Inventors:
ARITA YOSHIHIRO (JP)
MATSUI SHINICHI (JP)
MATSUI SHINICHI (JP)
Application Number:
PCT/JP2020/044202
Publication Date:
June 02, 2022
Filing Date:
November 27, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21C7/04; B22D11/00; B22D11/10; C21D8/12; C22C38/00; C22C38/14; H01F1/147
Domestic Patent References:
| WO2017122761A1 | 2017-07-20 | |||
| WO2005100627A1 | 2005-10-27 |
Foreign References:
| JP2004068084A | 2004-03-04 | |||
| JP2000219917A | 2000-08-08 | |||
| JP2000219916A | 2000-08-08 | |||
| JP2000096196A | 2000-04-04 | |||
| JPH10212555A | 1998-08-11 | |||
| JPH09263908A | 1997-10-07 | |||
| JP2008173667A | 2008-07-31 | |||
| JPH10102219A | 1998-04-21 | |||
| CN110592481A | 2019-12-20 | |||
| JPS54163720A | 1979-12-26 | |||
| JPS63195217A | 1988-08-12 | |||
| JPH03104844A | 1991-05-01 | |||
| JP2004002954A | 2004-01-08 |
Other References:
See also references of EP 4253574A4
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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