Patent ID: 6416592
Filing Date: 2002-07-09
Classification: C21D,H01F

Abstract:
A method of producing an electromagnetic steel sheet having excellent magnetic properties, said steel sheet having a specific resistivity of about 15 &mgr;&OHgr;Â·cm or more, a ratio of {100}<001> integration degree to {111} integration degree of about 2.0 or more, and crystal grains of about 10 &mgr;m to 500 &mgr;m in diameter which comprises,a) preparing a steel slab having a composition which is adjusted such that the specific resistivity of a resulting product sheet is about 15 &mgr;&OHgr;Â·cm or more, and b) subjecting said slab to hot rolling, wherein a large reduction ratio is applied to said steel slab in a final rolling stage, and wherein the finishing temperature is adjusted to about 750 to 1150Â° C.