Low-core-loss, high-magnetic-flux density, grain-oriented electrical steel sheet and production method therefor

The present invention relates to grain-oriented electrical steel sheet and provides a method for producing grain-oriented electrical steel sheet in which a silicon steel slab having a high carbon content is subjected to heating and hot rolling, and then hot band annealing and cold rolling are carrie...

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Bibliographic Details
Main Authors SONG DAE-HYUN, LIM JAE-SOO, HAN CHAN-HEE
Format Patent
LanguageChinese
English
Published 11.07.2012
Subjects
CHEMISTRY
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Summary:The present invention relates to grain-oriented electrical steel sheet and provides a method for producing grain-oriented electrical steel sheet in which a silicon steel slab having a high carbon content is subjected to heating and hot rolling, and then hot band annealing and cold rolling are carried out, which is followed by decarburization and nitride annealing, and then secondary recrystallization annealing; wherein the decarburization is effected simultaneously with the hot band annealing.
Bibliography:Application Number: CN2010844431