Process for producing a grain-oriented electromagnetic steel str

Details Process for producing a grain-oriented electromagnetic steel str Process for producing a grain-oriented electromagnetic steel str

1982-10-04

1985-02-19

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148121, H01F 104

Patent

active

045003661

ABSTRACT:
In a process for producing a grain-oriented electromagnetic steel strip or sheet by annealing, for primary recrystallization, a cold rolled electromagnetic steel strip or sheet having a final thickness, and subjecting said strip or sheet to secondary recrystallization annealing by heating it so that any portion of said strip or sheet along its width or length may pass through the boundary between the temperature ranges for primary recrystallization and secondary recrystallization with a predetermined temperature gradient, the improvement wherein said secondary recrystallization annealing is achieved by applying a principal supply of heat to at least one end of a coil of said strip or a stack of a plurality of said sheets.

REFERENCES:
Metals Handbook, 1981, pp. 451-453.

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