Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making composite or hollow article
Patent
1989-09-18
1990-12-25
Lechert, Jr., Stephen J.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making composite or hollow article
419 9, 419 10, 419 23, 419 24, 419 35, 75232, 75245, 75238, 75236, B22F 700
Patent
active
049801236
ABSTRACT:
Disclosed is a process for obtaining a metallurgical bond between a metal material, or a composite material having a metal matrix, and a metal casting, or a metal alloy casting, which comprises carrying out a surface treatment on said material by means of the deposition of a thin layer of a metal, generally different from the metals contained in the material and in the casting, which is capable of increasing the wettability between the metal of the casting and the material, as well as the heat transfer coefficient between said two partners; and a step of casting around the same material, positioned inside a mold, of the metal, or of the metal alloy the same casting is constituted by.
REFERENCES:
patent: 4710235 (1987-12-01), Scruggs
patent: 4855101 (1989-08-01), Mohs et al.
Gedeon Steve A.
Guerriero Renato
Tangerini Ilario
Bhat Nina
Lechert Jr. Stephen J.
Temav S.p.A.
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