Title:
HOT-PRESSED STEEL SHEET FOR NON-ORIENTED ELECTROMAGNETIC STEEL SHEET, MANUFACTURING METHOD OF HOT-PRESSED STEEL SHEET FOR NON-ORIENTED ELECTROMAGNETIC STEEL SHEET, AND MANUFACTURING METHOD OF NON-ORIENTED ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2022/176158
Kind Code:
A1
Abstract:
This hot-pressed steel sheet for a non-oriented electromagnetic steel sheet contains Si, Mn, Al, Ti, Nb, V and Zr in prescribed amounts as the chemical composition, and, viewed in a cut section parallel to the rolling direction and the plate thickness direction, AlN with a circle equivalent diameter of 10-200 nm is present in, and at the boundaries, of ferrite particles, and the number density of the aforementioned AlN present in the particles and at the particle boundaries is set to 8.0/μm2 of the observation area, and the number density of the aforementioned AlN present at the particle boundaries is set to less than or equal to 40/μm2 of the observation area.
Inventors:
ARITA YOSHIHIRO (JP)
FUJIKURA MASAHIRO (JP)
FUJIKURA MASAHIRO (JP)
Application Number:
PCT/JP2021/006344
Publication Date:
August 25, 2022
Filing Date:
February 19, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C22C38/00; C21D8/12; C22C38/60; H01F1/147
Domestic Patent References:
| WO2013069754A1 | 2013-05-16 | |||
| WO2013046661A1 | 2013-04-04 | |||
| WO2013069754A1 | 2013-05-16 |
Foreign References:
| JP2008524449A | 2008-07-10 | |||
| JPH06192731A | 1994-07-12 | |||
| JP2006241554A | 2006-09-14 | |||
| JP2007217744A | 2007-08-30 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF: