Non-oriented electric iron sheet and method for producing the sa

Details Non-oriented electric iron sheet and method for producing the sa Non-oriented electric iron sheet and method for producing the sa

1981-07-27

1984-03-27

Sheehan, John P.

Metal treatment

Compositions

Heat treating

75123B, 75123L, 75124, C04B 3500

Patent

active

044392516

ABSTRACT:
A non-oriented magnetic material consisting essentially of .ltoreq.0.065% C, .ltoreq.0.10% Al, 0.31 to 3.15% Si, .ltoreq.0.020% O, .ltoreq.0.01% N and B present in such amounts that the ratio of B/N is in the range of 0.5 to 2.50. The non-oriented magnetic material of this invention is produced by hot rolling a material of the above composition, subjecting the hot-rolled sheet to at least one cold-rolling step with intermediate annealing followed by a continuous annealing step and optionally a reannealing step to produce a non-oriented magnetic material.

REFERENCES:
patent: 3770517 (1973-11-01), Gray et al.
patent: 3827924 (1974-08-01), Takechi et al.
patent: 3873381 (1975-03-01), Jackson
patent: 3897245 (1975-07-01), Sauas
patent: 3950191 (1976-04-01), Ito et al.
patent: 4030950 (1977-06-01), Shilling et al.
patent: 4066479 (1978-01-01), Shimoyama et al.
patent: 4115161 (1978-09-01), Datta
patent: 4160681 (1979-07-01), Miller

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