EP 0378131 A3 19920930 - A METHOD OF MANUFACTURING A GRAIN-ORIENTED ELECTRICAL STEEL STRIP
Title (en)
A METHOD OF MANUFACTURING A GRAIN-ORIENTED ELECTRICAL STEEL STRIP
Publication
Application
Priority
- JP 177889 A 19890107
- JP 8650289 A 19890405
Abstract (en)
[origin: EP0378131A2] Provided is a method of manufacturing a grain-oriented electrical steel strip having excellent magnetic properties, that is, high magnetic flux density in particular, which is characterized in that the average diameter d of grain (primary recrystallization grain) of a material before final annealing is set to a value greater than 15 mu m and the coefficient sigma * of deviation in grain diameter is set to a value less than 0.6. According to the present invention, the aggregation to the {110}<001> orientation of a product can be made to be remarkably high so as to obtain a product having a high magnetic flux density B8 which is equal to or greater than 1.88 tesla.
IPC 1-7
IPC 8 full level
C21D 3/04 (2006.01); C21D 8/12 (2006.01); C21D 11/00 (2006.01)
CPC (source: EP)
C21D 3/04 (2013.01); C21D 8/12 (2013.01); C21D 11/00 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01)
Citation (search report)
- [Y] US 2867559 A 19590106 - MAY JOHN E
- [Y] EP 0219611 B1 19900516
- [A] EP 0098324 A1 19840118 - NIPPON STEEL CORP [JP]
- [A] BE 688060 A 19670410
- [AD] US 2599340 A 19520603 - LITTMANN MARTIN F, et al
- [AD] US 3287183 A 19661122 - SATORU TAGUCHI, et al
- [AD] US 3932234 A 19760113 - IMANAKA TAKUICHI, et al
- [AD] US 4770720 A 19880913 - KOBAYASHI HISASHI [JP], et al
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0378131 A2 19900718; EP 0378131 A3 19920930; EP 0378131 B1 19970528; DE 69030771 D1 19970703; DE 69030771 T2 19970911
DOCDB simple family (application)
EP 90100231 A 19900105; DE 69030771 T 19900105