Method for molding powders

Details Method for molding powders Method for molding powders

1990-03-05

1991-03-12

Hunt, Brooks H.

Powder metallurgy processes

Forming articles by uniting randomly associated metal particles

Consolidation of powders

419 60, 419 66, 249 65, 249112, 249127, 249183, 264220, 264102, 264571, 264DIG78, 264219, 4254051, 4254052, 425DIG14, B22F 100

Patent

active

049991574

ABSTRACT:
A method for molding powders comprises the steps of forming a mold support having at least an opening and a cavity, forming a film of latex on inner surfaces of the mold support by pouring the latex from the opening into the cavity of the mold support and discharging a substantial portion of the latex poured into the cavity, forming a thin-wall resilient mold inside the mold support by drying the film of latex formed, charging powders as materials for a compact from the opening into the thin-wall resilient mold, exhausting air out of the thin-wall resilient mold filled up with the powders through the opening and sealing the opening of the thin-wall resilient mold, separating the thin-wall resilient mold filled up with the powders from the mold support, and subjecting the thin-wall resilient mold to a cold isostatic press method treatment.

REFERENCES:
patent: 4552779 (1985-11-01), McClure
patent: 4582682 (1986-04-01), Betz et al.
patent: 4612163 (1986-09-01), Nishio et al.
patent: 4615855 (1986-10-01), Orlowski et al.
patent: 4761264 (1988-08-01), Nishio et al.
patent: 4777002 (1988-10-01), Putz
patent: 4812278 (1989-03-01), Natori et al.
patent: 4927600 (1990-05-01), Miyashita et al.

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