Manufacturing process for sintered Fe-P alloy product having sof

Details Manufacturing process for sintered Fe-P alloy product having sof Manufacturing process for sintered Fe-P alloy product having sof

1990-07-19

1992-02-25

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

419 10, 419 23, 419 25, 419 36, 419 37, 419 39, H01F 102

Patent

active

050910221

ABSTRACT:
There is disclosed a method for manufacturing intricate shaped magnetic parts having excellent soft magnetic characteristics which includes forming powders of Fe and P having particle sizes less than 45 .mu.m; mixing 0.1 to 1.0% by weight P powder with Fe powder; adding a binder; injection-molding the mixture at 1200 kg/cm.sup.2 ; removing the binder by heating; sintering the binder free part at 1200.degree.-1400.degree. C. for 30-180 min; and cooling the sintered part at a rate of less than 50.degree. C./min.

REFERENCES:
patent: 3836355 (1974-09-01), Lindskog et al.
patent: 4047983 (1977-09-01), Falkowski et al.
patent: 4115158 (1978-09-01), Reen
patent: 4236945 (1980-12-01), Reen

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