Process for producing tungsten heavy alloy sheet

Details Process for producing tungsten heavy alloy sheet Process for producing tungsten heavy alloy sheet

1988-02-29

1989-07-11

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

75248, 419 58, 419 60, B22F 100

Patent

active

048470457

ABSTRACT:
A process is disclosed for producing a sheet of tungsten heavy alloy which involves uniformly blending elemental metal powder components of the alloy by forming a slurry of the powder components in a liquid medium, introducing the slurry onto a filter medium and applying vacuum to the bottom of the slurry to form a planar cake of the powder components. The cake is then dried and sintered to a density equal to or greater than about 90% of the theoretical density of the alloy to form the sheet.

REFERENCES:
patent: 4744944 (1988-05-01), Spencer et al.
patent: 4765951 (1988-08-01), Kemp

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