Process for producing metal flakes

Details Process for producing metal flakes Process for producing metal flakes

1987-04-03

1988-05-10

Stallard, Wayland

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BA, 75 05BB, 75 05BC, B22F 904

Patent

active

047432977

ABSTRACT:
A process is disclosed for producing metal flakes. The process involves entraining the metal powder particles in a carrier gas and passing the powder particles through a high temperature zone at a temperature above the melting point of the powder particles to melt at least about 50% of the powder particles, resolidifying the resulting high temperature treated material by impacting the material against a substrate, and thereafter contacting the material with a non-oxidizing gas which can be nitrogen, argon, hydrogen, helium or combinations of these to remove the material from the substrate in the form of flakes.

REFERENCES:
patent: 3151971 (1964-10-01), Clough
patent: 3165396 (1965-01-01), Goon

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