EP 0431502 A3 19930203 - NON-ORIENTED ELECTRICAL STRIP AND METHOD OF MANUFACTURING
Title (en)
NON-ORIENTED ELECTRICAL STRIP AND METHOD OF MANUFACTURING
Publication
Application
Priority
DD 33529089 A 19891206
Abstract (en)
[origin: EP0431502A2] The invention relates to a non-grain-oriented electrical strip with large fractions of cubic texture or cubic-surface texture and a polarisation J 2500 > 1.7 T and a low remagnetisation loss, and to a manufacturing method for this. A steel ingot containing, apart from iron, less than 0.025% C, less than 0.1% Mn, 0 to 0.15% of surface-active elements, Si and Al, in such a way that the relationships (% Si) + 2(% Al) > 1.6% and (%Si) + (% Al) < 4.5% are met, is hot-rolled to a thickness of not less than 3.5 mm. The hot strip thus obtained is then cold-rolled at a degree of deformation of at least 86% without recrystallising and interannealing and, if necessary, finally annealed.
IPC 1-7
IPC 8 full level
C21D 8/12 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01)
CPC (source: EP KR US)
C21D 8/12 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP US); C21D 8/1222 (2013.01 - EP US); C21D 8/1233 (2013.01 - EP US); C21D 8/1244 (2013.01 - EP US)
Citation (search report)
- [X] US 3761253 A 19730925 - REGITZ L
- [X] FR 2408657 A1 19790608 - KAWASAKI STEEL CO [JP], et al
- [AD] FR 2462479 A1 19810213 - ALLEGHENY LUDLUM STEEL [US]
- [A] FR 2236009 A1 19750131 - NIPPON STEEL CORP [JP]
- [AD] DE 1966686 A1 19730830 - CREUSOT LOIRE
- [A] US 4421574 A 19831220 - LYUDKOVSKY GRIGORY [US]
- [A] US 3279960 A 19661018 - MAMORU NISHIHARA, et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0431502 A2 19910612; EP 0431502 A3 19930203; EP 0431502 B1 19940928; AT E112326 T1 19941015; AU 632876 B2 19930114; AU 6784190 A 19910613; BR 9006197 A 19910924; CA 2031579 A1 19910607; CA 2031579 C 20010220; DD 299102 A7 19920402; DE 4038373 A1 19910627; DE 59007334 D1 19941103; JP H04218647 A 19920810; KR 0177801 B1 19990218; KR 910012318 A 19910807; US 5258080 A 19931102; ZA 909748 B 19911030
DOCDB simple family (application)
EP 90123040 A 19901201; AT 90123040 T 19901201; AU 6784190 A 19901206; BR 9006197 A 19901206; CA 2031579 A 19901205; DD 33529089 A 19891206; DE 4038373 A 19901201; DE 59007334 T 19901201; JP 41360190 A 19901206; KR 900020036 A 19901206; US 62225990 A 19901204; ZA 909748 A 19901204