Method of hot rolling continuously cast grain-oriented...

Details Method of hot rolling continuously cast grain-oriented... Method of hot rolling continuously cast grain-oriented...

C - Chemistry, Metallurgy

21

D

148/8

C21D 8/12 (2006.01)

Patent

CA 2020933

ABSTRACT OF THE DISCLOSURE A continuously cast slab of grain-oriented electrical steel is heated, subjected to heavy-reduction edge rolling at such amount not less than 60 mm as is required for matching with the width of a hot-rolled coil to be produced therefrom, whereafter the dogbones formed in the slab by the heavy-reduction edge rolling are eliminated by horizontal rolling to obtain a flat slab. The flat slab is then heated to a high temperature and hot rolled. Optionally, the edges of the slab can be heated prior to the finish rolling step of the hot rolling process. The method enables production of grain-oriented electrical sheet with high productivity.

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