Rare earth metal treated cold rolled non-oriented silicon steel

Details Rare earth metal treated cold rolled non-oriented silicon steel Rare earth metal treated cold rolled non-oriented silicon steel

C - Chemistry, Metallurgy

22

C

75/149, 53/77

C22C 38/02 (2006.01) C21C 7/00 (2006.01) C21C 7/06 (2006.01) C21C 7/064 (2006.01)

Patent

CA 1070986

ABSTRACT OF THE DISCLOSURE A melt for cold rolled, non-oriented silicon steel is deoxidized and thereafter treated with mischmetal or a mischmetal alloy to desulfurize the melt to .012% by weight sulfur or less without the formation of a polluting smoke. The deoxidation is carried cut to the extent that, and the mischmetal is added in an amount such that, the melt composi- tion, has a total cerium content of up to about 400 ppm. and preferably from about 75 to about 250 ppm.

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