Title:
HOT-ROLLED STEEL SHEET FOR NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/219742
Kind Code:
A1
Abstract:
This hot-rolled steel sheet for a non-oriented electrical steel sheet has a solid solution Ti amount of 0.0005% or less and includes Ti carbides having a circle equivalent diameter of 10-50 nm at the grain boundary or within ferrite grains. In the hot-rolled steel sheet, 10-100% in terms of the number of the Ti carbides present within the ferrite grains form a complex deposit with a Mn sulfide, and the number density of the Ti carbides existing at the grain boundary is 0.1 pieces/μm or less.
Inventors:
ARITA YOSHIHIRO (JP)
Application Number:
PCT/JP2021/015433
Publication Date:
October 20, 2022
Filing Date:
April 14, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D8/12; C22C38/00; C22C38/14
Domestic Patent References:
| WO2005100627A1 | 2005-10-27 |
Foreign References:
| JP2006124809A | 2006-05-18 | |||
| JPH1046245A | 1998-02-17 | |||
| JP2005002401A | 2005-01-06 | |||
| JP2005179710A | 2005-07-07 | |||
| JP2001064756A | 2001-03-13 | |||
| CN105779731A | 2016-07-20 | |||
| CN101914732A | 2010-12-15 | |||
| JPS54163720A | 1979-12-26 | |||
| JPS63195217A | 1988-08-12 | |||
| JPH03104844A | 1991-05-01 | |||
| JP2004002954A | 2004-01-08 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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