Abstract：The 0. 38mm 6. 5%Si electrical composite plate is carried out the different heat treatment processing before cold rolling. Microstructure of the different states of 6. 5%Si electrical composite plate is observed by optical microscope. The magnetic property of different groups of 6. 5%Si electrical composite plate is measured. The microhardness of 6. 5%Si electrical composite plate both before and after cold rolling is compared. The results show that during the stage of 6. 5%Si electrical composite plate after warm rolling cooled to room temperature, its plastic property, magnetic property and microhardness is poor. Its plastic property at room temperature is not improved essentially by virtue of low tempering could not prevent the composite plate from cracking during cold rolling. The order phase transition of core layer of composite plate is effectively restrained because of quenching combined with low temperature tempering, and the room temperature plastic property and magnetic property of 6. 5%Si electrical composite plate could be developed significantly.
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2018, Vol. 25 
