Global Patent Index - EP 2775007 B1

EP 2775007 B1 20181205 - A process for the production of a grain-oriented electrical steel

Title (en)

A process for the production of a grain-oriented electrical steel

Title (de)

Verfahren zur Herstellung eines kornorientierten elektrischen Stahls

Title (fr)

Procédé de production d'un acier électrique à grains orientés

Publication

EP 2775007 B1 20181205 (EN)

Application

EP 13158409 A 20130308

Priority

EP 13158409 A 20130308

Abstract (en)

[origin: EP2775007A1] The invention relates to a process for the production of grain oriented electrical steel by providing a hot rolled strip having a carbon content of less than 0.006 wt.%, subjecting said strip to cold rolling, intermediate annealing, cold rolling to final thickness and thereafter subjecting the cold rolled strip to a batch annealing and a final continuous annealing in order to produce a final product having a maximum core loss at 1.7 T and 50 Hz (P 17/50 ) of < 2 W/kg and/or a minimum magnetic flux density at 800 A/m (J 800 ) of > 1.70 T.

IPC 8 full level

C22C 38/00 (2006.01); C21D 8/12 (2006.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/16 (2006.01)

CPC (source: EP)

C21D 8/12 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/004 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/16 (2013.01); C22C 38/60 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2775007 A1 20140910; EP 2775007 B1 20181205

DOCDB simple family (application)

EP 13158409 A 20130308