EP 0162710 B1 19890809 - METHOD FOR PRODUCING GRAIN-ORIENTED SILICON STEEL SHEETS
Title (en)
METHOD FOR PRODUCING GRAIN-ORIENTED SILICON STEEL SHEETS
Publication
Application
Priority
- JP 4494085 A 19850308
- JP 10369684 A 19840524
- JP 11379084 A 19840605
- JP 25580784 A 19841205
Abstract (en)
[origin: EP0162710A2] A grain-oriented silicon steel sheet having high magnetic induction and low iron loss can be obtained by adhering uniformly at least one member selected from the group consisting of elements of Ge, Sn, Pb, As, Bi and Zn and compounds containing these elements to the surfaces of a silicon steel sheet before or after the decarburization annealing in a method for producing grain-oriented silicon steel sheets, wherein a hot rolled steel sheet is subjected to at least one cold rolling, the finally cold rolled steel sheet is subjected to a decarburization annealing, and the decarburized steel sheet is applied with an annealing separator consisting mainly of MgO and then subjected to a final annealing, or by carrying out the adhesion treatment of element in combination with a preliminary annealing before the decarburization annealing in the above described method, or by using the annealing separator further containing Bi or a Bi-containing compound in the above described method.
IPC 1-7
IPC 8 full level
C21D 8/12 (2006.01)
CPC (source: EP)
C21D 8/1283 (2013.01); C21D 8/1244 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0162710 A2 19851127; EP 0162710 A3 19870408; EP 0162710 B1 19890809; DE 3572197 D1 19890914
DOCDB simple family (application)
EP 85303595 A 19850522; DE 3572197 T 19850522