Global Patent Index - EP 0074715 B1

EP 0074715 B1 19861112 - METHOD FOR PRODUCING ORIENTED SILICON STEEL HAVING IMPROVED MAGNETIC PROPERTIES

Title (en)

METHOD FOR PRODUCING ORIENTED SILICON STEEL HAVING IMPROVED MAGNETIC PROPERTIES

Publication

EP 0074715 B1 19861112 (EN)

Application

EP 82304192 A 19820809

Priority

US 29559181 A 19810824

Abstract (en)

[origin: EP0074715A1] An improvement in the manufacture of oriented silicon steel to improve the magnetic properties, and specifically to achieve improved core loss; the improvement comprising removing as by acid pickling at least 3.3 mu m from each surface of said steel and normalizing said steel to effect decarburization prior to final texture annealing.

IPC 1-7

C21D 8/12

IPC 8 full level

C21D 8/12 (2006.01)

CPC (source: EP KR)

C21D 8/1277 (2013.01 - EP); C23F 1/02 (2013.01 - KR)

Designated contracting state (EPC)

BE DE FR GB IT SE

DOCDB simple family (publication)

EP 0074715 A1 19830323; EP 0074715 B1 19861112; BR 8204770 A 19830802; CA 1198036 A 19851217; DE 3274260 D1 19870102; JP S5842728 A 19830312; KR 840000668 A 19840225; PL 238009 A1 19830228

DOCDB simple family (application)

EP 82304192 A 19820809; BR 8204770 A 19820816; CA 408676 A 19820804; DE 3274260 T 19820809; JP 14676982 A 19820824; KR 820003290 A 19820723; PL 23800982 A 19820823