Method of producing non-oriented silicon steel sheets having an excellent electromagnetic property
AssigneeKawasaki Steel Corporation
InventorsToshio Irie, Ko Matsumura, Hiroto Nakamura, Hiroshi Shimanaka, Toshio Suzuki
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Abstract
Non-oriented silicon steel sheets having an excellent electromagnetic property is obtained by annealing a hot rolled steel sheet containing not moe than 0.02% of C, 0.5-3.5% of Si, 0.1-1.0% of Al, 0.1-1.0% of Mn, not more than 0.007% of S and 0.005-0.30% of Sb at a temperature of 700.degree.-950.degree. C., cold rolling the annealed sheet, and annealing the cold rolled sheet at a temperature of 750.degree.-1,000.degree. C.
Claims7
A method of producing non-oriented silicon steel sheets having excellent electromagnetic properties, comprising annealing a hot rolled sheet consisting of not more than 0.02% of C, 0.5-3.5% of Si, 0.1-1.0% of Al, 0.1-1.0% of Mn, not more than 0.007% of S, 0.005-0.30% of Sb and the remainder being substantially Fe at a temperature of 700.degree.-950.degree. C. for 2 minutes to 20 hours, cold rolling the annealed sheet into a final gauge, and annealing the cold rolled sheet at a temperature of 750.degree.-1,000.degree. C.
Dependencies are inferred from the claim text.