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1. (WO2017169853) MAGNESIUM OXIDE FOR ANNEALING SEPARATOR, AND GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET

Pub. No.:    WO/2017/169853    International Application No.:    PCT/JP2017/010690
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Fri Mar 17 00:59:59 CET 2017
IPC: C21D 8/12
C01F 5/08
C21D 9/46
C23C 22/00
H01F 1/147
Applicants: TATEHO CHEMICAL INDUSTRIES CO., LTD.
タテホ化学工業株式会社
Inventors: KITAGAKI Masaki
北垣 昌紀
HIRATSU Yutaka
平津 豊
KAMEI Tadasuke
亀井 忠輔
Title: MAGNESIUM OXIDE FOR ANNEALING SEPARATOR, AND GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
Abstract:
The present invention addresses the problem of providing magnesium oxide for annealing separators which is for obtaining grain-oriented electromagnetic steel sheets excellent in terms of magnetic property and insulating property. The present invention for solving the problem is magnesium oxide for annealing separators which has a Blaine specific surface area of 2.5×103 to 7.0×103 m2·kg-1 and a CAA of 50-170 seconds.