Title:
MIXED POWDER, MGO PARTICLES, METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET, METHOD FOR PRODUCING MGO PARTICLES, AND METHOD FOR PRODUCING MIXED POWDER
Document Type and Number:
WIPO Patent Application WO/2024/048721
Kind Code:
A1
Abstract:
A mixed powder for an annealing separating agent having MgO as a main ingredient, wherein the average particle diameter of the mixed powder is 0.10 to 8.50 µm, the mixed powder contains B, the content of B in the entire mixed powder is 0.005 mass% or more and less than 0.040 mass%, the proportion of 3-coordinate boron among the B is 5 mass% or more and less than 70 mass%, and the ratio of circumference to thickness of primary particles containing the MgO is 6.0 or more.
Inventors:
YAMAGATA RYUTARO (JP)
TAKEDA KAZUTOSHI (JP)
TAKAHASHI TAKAFUMI (JP)
TAKEDA KAZUTOSHI (JP)
TAKAHASHI TAKAFUMI (JP)
Application Number:
PCT/JP2023/031815
Publication Date:
March 07, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C23C22/00; C01B35/12; C21D8/12; C21D9/46
Foreign References:
| JP2004176144A | 2004-06-24 | |||
| JPS5734022A | 1982-02-24 | |||
| JP2017128773A | 2017-07-27 | |||
| JP2017128772A | 2017-07-27 | |||
| JPH0375219A | 1991-03-29 | |||
| JPH01177376A | 1989-07-13 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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