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Title:
MAGNESIUM OXIDE FOR ANNEALING SEPARATORS, AND GRAIN-ORIENTED MAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2017/169854
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a magnesium oxide for annealing separators for obtaining a grain-oriented magnetic steel sheet having excellent magnetic properties and insulation properties. The present invention for solving this problem is a magnesium oxide for annealing separators, in which the sulfur content is 0.1 to 0.5 mass% and the aggregation degree RBlaine/RBET, which is the ratio of the particle diameter RBlaine calculated from the Blaine specific surface area to the particle diameter RBET calculated from the BET specific surface area, is 3.0 to 5.5.

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Inventors:
MIGITA TSUBASA (JP)
HIRATSU YUTAKA (JP)
KAMEI TADASUKE (JP)
Application Number:
PCT/JP2017/010691
Publication Date:
October 05, 2017
Filing Date:
March 16, 2017
Export Citation:
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Assignee:
TATEHO KAGAKU KOGYO KK (JP)
International Classes:
C21D8/12; C01F5/08; C21D9/46; C23C22/00; H01F1/147
Domestic Patent References:
WO2001083848A12001-11-08
WO2008047999A12008-04-24
Foreign References:
JP2014193790A2014-10-09
JP2001303258A2001-10-31
JPH1088244A1998-04-07
JPH07316831A1995-12-05
JPH11181305A1999-07-06
Other References:
See also references of EP 3438292A4
Attorney, Agent or Firm:
TSUKUNI & ASSOCIATES et al. (JP)
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