Electrolytic base coating used in the production of high...

Details Electrolytic base coating used in the production of high... Electrolytic base coating used in the production of high...

C - Chemistry, Metallurgy

21

D

148/8

C21D 8/12 (2006.01) C25D 9/10 (2006.01)

Patent

CA 1127512

991 ELECTROLYTIC BASE COATING USED IN THE PRODUCTION OF HIGH PERMEABILITY SILICON STEEL ABSTRACT OF THE DISCLOSURE A process for producing high permeability electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing a melt of silicon steel containing from 2.5 to 4.0% silicon; casting; hot rolling, cold rolling; decarburizing; applying a refractory oxide base coating; and final texture annealing. The refractory oxide base coating is applied by electrolyzing an aqueous solution having as a major constituent at least one compound from the group consisting of water soluble salts of calcium, magnesium, manganese and aluminum and as a minor constituent boron,with the steel being arranged as the cathode in the solution; by removing the thus coated steel from the solution; and by heating the coated steel at an elevated temperature.

328400

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