Method for inhibiting the oxidation of hard metal powder

Details Method for inhibiting the oxidation of hard metal powder Method for inhibiting the oxidation of hard metal powder

1995-08-28

1997-02-18

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Treating loose metal powder, particle or flake

75363, 148514, B22F 100

Patent

active

056037813

ABSTRACT:
A method for inhibiting the oxidation of powder of a hard metal, characterized by heat-treating the milled powder of a hard metal at a temperature between about 300.degree. C. and 500.degree. C. for at least 1 hr in vacuum is disclosed.

REFERENCES:
patent: 4534935 (1985-08-01), Ambrose et al.
patent: 5320800 (1994-06-01), Siegel et al.
Metal Powder Industries Federation, pp. 451-482, 1990, R. M. German, "Powder Injection Moulding".
MPR, pp. 812-815, Dec. 1988, Dr. Poniatowski, et al., "Injection Moulding of Tungsten Carbide Base Hard Metals".
Powder Mettalurgy 1994, pp. 1181-1184, 1994, N. P. Dalskov, et al., "Injection Moulding of Hard Metal Components".
Powder Metallurgy 1994, pp. 1121-1124, 1994, D. Bialo, et al., "Water Soluble Binder for Mim".

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