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/2024/048751
Kind Code:
A1
Abstract:
A mixed powder for an annealing separating agent having MgO as a main ingredient, wherein the mixed powder contains Al and B, the content of Al in the entire mixed powder is 0.0007 to 0.050 mass%, the content of B in the entire mixed powder is 0.005 to 0.040 mass%, B contains 3-fold coordinated boron, the average particle diameter of the mixed powder is 0.08 to 9.0 µm, and following equation (1) is satisfied. Equation (1): 0.06≦[Al]/[BO3]＜5.00. In the equation (1), [Al] represents the content (mass%) of Al in the mixed powder, and [BO3] represents the content (mass%) of 3-fold coordinated boron in the mixed powder.
Inventors:
YAMAGATA RYUTARO (JP)
TAKEDA KAZUTOSHI (JP)
TAKAHASHI TAKAFUMI (JP)
TAKEDA KAZUTOSHI (JP)
TAKAHASHI TAKAFUMI (JP)
Application Number:
PCT/JP2023/031942
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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