Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1983-06-01
1984-02-14
Hunt, Brooks H.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
419 26, 419 27, 419 36, 419 38, 419 48, 428567, B22F 300
Patent
active
044314493
ABSTRACT:
A molded, non-refractory metal article is made by molding in a flexible mold a plastic mixture of non-refractory, spherical metal powders and a heat-fugitive binder comprising thermoplastic material to form a green article of predetermined shape and dimensions, heating the green article to remove said binder and consolidate the non-refractory spherical powders in the form of a porous, monolithic skeleton of necked particles of non-refractory metal, infiltrating the skeleton with a molten metal having a melting point that is at least 25.degree. C. less than the melting point of the lowest melting of said spherical, non-refractory metal particles, and cooling the infiltrated skeleton thereby forming a homogeneous, void-free, non-refractory metal article of two intermeshed metal matrices.
REFERENCES:
patent: 2783145 (1957-02-01), Boyce
patent: 3307924 (1967-05-01), Micheal
patent: 3343954 (1967-09-01), Brab
patent: 3459547 (1969-08-01), Andreotti et al.
patent: 3729794 (1973-05-01), Douglass
patent: 3823002 (1974-07-01), Kirby, Jr. et al.
Dillon Kenneth R.
Terchek Richard L.
Cleveland David R.
Hunt Brooks H.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
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