Method for production of injection molded powder metallurgy prod

Details Method for production of injection molded powder metallurgy prod Method for production of injection molded powder metallurgy prod

1990-10-11

1991-09-03

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 10, 419 19, 419 23, 419 26, 419 27, 419 28, 419 36, 419 37, 419 38, B22F 700

Patent

active

050452762

ABSTRACT:
An injection molded powder metallurgy product of highly satisfactory quality is obtained by a method which comprises injection molding mixture obtained by kneading a metal powder with a binder, depriving the molded mass of the binder while keeping the molded mass at least in contact with ceramic powder, projecting beads on the molded mass free from the binder, and thereafter sintering the molded mass studded with the beads.

REFERENCES:
patent: 3617358 (1971-11-01), Dittrich
patent: 4569821 (1986-02-01), Duperray et al.
patent: 4698269 (1987-10-01), Narusch et al.

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