Method for producing electrical steel core laminations

Details Method for producing electrical steel core laminations Method for producing electrical steel core laminations

1988-07-25

1989-10-03

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148150, 148154, C21D 142

Patent

active

048714038

ABSTRACT:
Core laminations are stamped from electrical steel strip and stress annealed by induction heating in a closed tubular chute inclined downwardly from the stamping press. A preselected, non-ambient atmosphere is maintained within the chute.

REFERENCES:
patent: 4081296 (1978-03-01), Janatka et al.
patent: 4390378 (1983-06-01), Rastogi
patent: 4601766 (1986-07-01), Rastogi et al.
patent: 4602969 (1986-07-01), Koshiishi et al.
patent: 4772341 (1988-04-01), Rastogi et al.

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