EP 0266422 A4 19881102 - PROCESS FOR PRODUCING LOW CORE LOSS, THIN, UNIDIRECTIONAL SILICON STEEL PLATE HAVING EXCELLENT SURFACE PROPERTIES.
Title (en)
PROCESS FOR PRODUCING LOW CORE LOSS, THIN, UNIDIRECTIONAL SILICON STEEL PLATE HAVING EXCELLENT SURFACE PROPERTIES.
Title (de)
VERFAHREN ZUR HERSTELLUNG VON DÜNNEN SILIZIUM-STAHLBLECHEN MIT GOSS-TEXTUR MIT NIEDRIGEN WATTVERLUSTEN SOWIE MIT AUSGEZEICHNETEN OBERFLÄCHENEIGENSCHAFTEN.
Title (fr)
PROCEDE DE PRODUCTION D'UNE MINCE PLAQUE D'ACIER AU SILICIUM UNIDIRECTIONNEL A FAIBLE PERTE DANS LE NOYAU, POSSEDANT D'EXCELLENTES PROPRIETES DE SURFACE.
Publication
Application
Priority
JP 8600138 W 19860325
Abstract (en)
[origin: WO8705945A1] A process for consistently producing a low core loss, thin, unidirectional silicon steel plate. The process makes it possible to produce a low core loss, unidirectional silicon steel plate having a thickness of 0.1 to 0.25 mm for use in producing transformers with advantageously avoiding deterioration of surface properties by considering chemical ingredients of steel, optimizing rolling conditions, particularly cold-rolling conditions, and forming allomeric microzones on the surface of a steel plate. The steel plate does not undergo deterioration by stress-relieving annealing.
IPC 1-7
IPC 8 full level
C21D 8/12 (2006.01); C22C 38/02 (2006.01)
CPC (source: EP)
C21D 8/1233 (2013.01); C21D 8/1294 (2013.01); C22C 38/02 (2013.01); C21D 8/1227 (2013.01); C21D 8/1244 (2013.01)
Citation (search report)
- [Y] EP 0108575 A2 19840516 - ARMCO INC [US]
- [A] FR 2268868 A1 19751121 - NIPPON STEEL CORP [JP]
- [A] FR 2472614 A1 19810703 - KAWASAKI STEEL CO [JP]
- [A] GB 1266957 A 19720315
- [Y] PATENT ABSTRACTS OF JAPAN, vol. 10, no. 213 (E-422)[2269], 25th July 1986; & JP-A-61 51 803 (KAWASAKI STEEL CORP.) 14-03-1986
- See references of WO 8705945A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 8705945 A1 19871008; DE 3675945 D1 19910110; EP 0266422 A1 19880511; EP 0266422 A4 19881102; EP 0266422 B1 19901128; EP 0266422 B2 19960626
DOCDB simple family (application)
JP 8600138 W 19860325; DE 3675945 T 19860325; EP 86902022 A 19860325