Title:
METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2022/158541
Kind Code:
A1
Abstract:
Proposed is a method for stably producing a grain-oriented electrical steel sheet having excellent magnetic properties by effectively purifying inhibitors. This method for producing a grain-oriented electrical steel sheet uses a steel slab containing a predetermined amount of at least one among Ti, Zr, Hf, V, Nb, and Ta, and comprises applying, on the surface of a steel sheet, an annealing separating agent, obtained by adding 1-10 parts by mass of a metallic compound with respect to 100 parts by mass of MgO, such that the ratio of particles of the metallic compound having a particle size of 1 μm or more becomes 0.0010 particles/ μm2 or less in the surface of the steel sheet.
Inventors:
YAMADA TAKUYA (JP)
WATANABE MAKOTO (JP)
TERASHIMA TAKASHI (JP)
WATANABE MAKOTO (JP)
TERASHIMA TAKASHI (JP)
Application Number:
PCT/JP2022/002057
Publication Date:
July 28, 2022
Filing Date:
January 20, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; H01F1/147; C22C38/00; C22C38/14; C22C38/60
Domestic Patent References:
| WO2017191953A1 | 2017-11-09 |
Foreign References:
| JPS6179781A | 1986-04-23 | |||
| JPS6123771A | 1986-02-01 | |||
| JP2019127616A | 2019-08-01 | |||
| JPS6179780A | 1986-04-23 | |||
| JP2020169374A | 2020-10-15 | |||
| JPH0625747A | 1994-02-01 | |||
| JP2008115421A | 2008-05-22 | |||
| JPH09143562A | 1997-06-03 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
Download PDF: