Grain-oriented silicon steel and processing therefor

Details Grain-oriented silicon steel and processing therefor Grain-oriented silicon steel and processing therefor

C - Chemistry, Metallurgy

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C

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C22C 38/02 (2006.01) C21D 8/12 (2006.01) C23C 22/74 (2006.01) H01F 1/04 (2006.01) H01F 1/147 (2006.01)

Patent

CA 1057174

GRAIN-ORIENTED SILICON STEEL AND PROCESSING THEREFOR ABSTRACT OF THE DISCLOSURE A process for producing grain-oriented silicon steel, and the steel produced thereby. The process includes the steps of: preparing a melt of silicon steel; casting the steel; hot rolling the steel; cold rolling the steel; decarburizing the steel; final texture annealing the steel; coating the steel with an aqueous solution comprised of from 4 to 30% phosphate ion, up to 6% magnesium ion, 5 to 34% colloidal silica and 0.15 to 6% hexavalent chromium; and curing the coated steel at a temperature of at least 1200°F.

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