Method of producing grain oriented silicon steel sheets or...

C - Chemistry – Metallurgy – 21 – D

Patent

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148/8

C21D 8/12 (2006.01)

Patent

CA 1198654

Abstract of the Disclosure Grain oriented silicon steel sheets or strips having high magnetic induction and ultra-low iron loss can be obtained by the intermediate annealing cycle containing a rapid heating and rapid cooling just before final cold rolling, wherein a first cold rolled sheet is rapidly heated from 500°C to 900°C at a heating rate of at least 5°C/sec and the steel sheet heated in the intermediate annealing is rapidly cooled from 900°C to 500°C at a cooling rate of at least 5°C/sec.

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