Method of producing silicon-iron sheet material with annealing a

Details Method of producing silicon-iron sheet material with annealing a Method of producing silicon-iron sheet material with annealing a

1981-01-12

1982-07-06

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148111, 148 315, H01F 104

Patent

active

043381448

ABSTRACT:
Silicon-iron sheet products having good magnetic properties can be produced from low nitrogen alloy sheet material by heating in a nitrogen-bearing hydrogen atmosphere to a temperature sufficient to effect secondary recrystallization and thereafter heating to a higher temperature in a hydrogen atmosphere to effect removal of residual carbon, nitrogen, and sulfur.

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patent: 4116730 (1978-09-01), Arendt et al.
patent: 4168169 (1979-09-01), Hasekorn
patent: 4173502 (1979-11-01), Fiedler
patent: 4186038 (1980-01-01), Maucione

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