Method for producing iron or iron alloy powders having a low oxy

Details Method for producing iron or iron alloy powders having a low oxy Method for producing iron or iron alloy powders having a low oxy

1975-06-23

1976-06-29

Stallard, W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

B22F 900

Patent

active

039664546

ABSTRACT:
Iron or iron alloy powders having a low oxygen content to be used for powder metallurgy are produced by subjecting iron or iron alloy powder materials having an oxygen content of not more than 8% by weight and a total carbon amount including carbon alloyed in said powders being not more than 6% by weight corresponding to the oxygen content to an induction heating under a relative density of 5-65% based on a density of the molding steel of said powders by means of an alternating current of 50 cycles-1 megacycle to heat said powders at a temperature of 750.degree.-1,400.degree.C to effect reduction rapidly.

REFERENCES:
patent: 2759808 (1956-08-01), Kuzmick et al.
patent: 3073695 (1963-01-01), Silbereisen et al.
patent: 3368890 (1968-02-01), Schroeder et al.
patent: 3418104 (1968-12-01), Hatcher
patent: 3419383 (1968-12-01), Hatcher et al.

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