Composition for atomized alloy bronze powders

Details Composition for atomized alloy bronze powders Composition for atomized alloy bronze powders

1978-01-24

1979-10-02

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75251, 264 5, C22C 900, C22C 902

Patent

active

041697308

ABSTRACT:
A non-ferrous powder formed of a prealloy of copper, tin and zinc, the present article of manufacture exhibits sufficient green strength to allow direct compacting and sintering of useful articles from the "as atomized" form. The present prealloy powder is preferably air atomized from an alloy of copper, tin and zinc, the respective nominal weight percents of the components in the resulting prealloy powder being 89%, 9% and 2%. The present prealloy powder is preferably lubricated with conventional dry organic lubricants and can optionally be blended with carbonyl iron, carbonyl iron nominally comprising 1.0% to 3.0% by weight of the powder.

REFERENCES:
patent: 2882589 (1959-04-01), Stafford
patent: 2884319 (1959-04-01), Fabian et al.
patent: 2935400 (1960-05-01), Zeider et al.
Poster (ed.); "Handbook of Metal Powders", Rheinhold, N.Y., 1966, pp. 125-128.
P/M Literature Ref. Guide, 1974-1975, Am. Powder Met. Inst., 1975, p. 128.
Copper & Copper-Base Powder Alloys, Pub. Met. Powder Ind. Federation, Princeton, 1976, p. 36.

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