Process for pretreating metal in preparation for compacting oper

Details Process for pretreating metal in preparation for compacting oper Process for pretreating metal in preparation for compacting oper

1989-09-27

1990-09-11

Hunt, Brooks H.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

419 32, 419 36, 75231, B22F 100

Patent

active

049557980

ABSTRACT:
A pretreating process in powder metallurgy for preparing powders for compacting or densifying operations includes the steps of mixing powder metals with solid lubricants and optionally with liquid solvents to form a mixture and heating the resulted mixture prior to compacting or densifying to a temperature greater than room temperature and below the softening temperature of the solid lubricants.

REFERENCES:
patent: 2717419 (1955-09-01), Dickey
patent: 3351464 (1967-11-01), Budincsevits
patent: 3410684 (1968-11-01), Printz
patent: 4721599 (1988-01-01), Nakamura
patent: 4737332 (1988-04-01), Miyashita et al.
patent: 4765950 (1988-08-01), Johnson

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