Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1977-12-15
1979-05-22
Schafer, Richard E.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75236, 75243, 75239, 123193C, C22C 104, F02F 100
Patent
active
041557565
ABSTRACT:
This invention concerns production by extrusion of hollow cylindrical bodies starting with granulated alloys of aluminum containing silicon. It consists of preparing the composition of the alloy in a liquid form, producing granules by centrifugal pulverization or atomization, introducing the granulated material into an extrusion press to obtain the hollow profile by extrusion and extruding the granular material within to form a cylindrical body. This invention is applicable to form hollow bodies and particularly sleeves of motors of high content silicon aluminum alloy through which size and distribution of primary silicon is improved over traditional casting methods.
REFERENCES:
patent: 1944183 (1934-01-01), Kempf et al.
patent: 2024767 (1935-12-01), Jeffries et al.
patent: 3113002 (1963-12-01), Hollingsworth
patent: 3325279 (1967-06-01), Lawrence et al.
Dixon, C. F. et al., "Hypereutectic Aluminum-Silicon Alloys Produced by Powder Metallurgy Techniques", In The International Journal of Powd. Met., 1(4):28-36, 1965.
Mazodier Jean-Louis
Perrot Rene
Schafer Richard E.
Societe de Vente de l'Aluminium Pechiney
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