C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 33/08 (2006.01) C21D 8/02 (2006.01) C22C 38/02 (2006.01) C22C 38/04 (2006.01) C22C 38/06 (2006.01) C22C 38/42 (2006.01)
Patent
CA 2735743
In a method for manufacture of electrical steel a liquid steel mixture is created with a specified mixture chemistry. A continuous casting is performed to convert the liquid steel mixture to a slab. Hot roll steel band is created from the slab which is then pickled and hot band annealed, and then a cold rolled steel strip is formed. In a continuous annealing line, the cold rolled strip is annealed to achieve a partial recrystallization with a smaller grain size than would be the grain size with a complete recrystallization. Electrical steel created by the method is used for rotors and matching stators of a motor with properties at high strength and low electrical losses.
Smart & Biggar
Tempel Steel Company
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