Process for the production of spherical metallic particles

Details Process for the production of spherical metallic particles Process for the production of spherical metallic particles

1984-12-11

1986-12-09

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By extrusion spraying or gravity fall through orifice

264 13, 264 15, 264 24, B29B 910

Patent

active

046279431

ABSTRACT:
A process is disclosed for producing spherical metallic particles which are especially suited for use as an abrasive wherein a particulate metal starting material is liquified by counter-current flow with a hot gas stream which places the solid and liquid particles in a fluidized state and the liquified particles are droplets upon reaching a sufficiently small size are carried upwardly out of the fluidized zone and then cooled to form the spherical particles. An apparatus for carrying out the process is also disclosed.

REFERENCES:
patent: 2186659 (1940-01-01), Vogt
patent: 2586818 (1952-02-01), Harnns
patent: 2947115 (1960-08-01), Wood
patent: 3036338 (1962-05-01), Nack
patent: 3615187 (1971-10-01), Suzukawa et al.
patent: 3856441 (1974-12-01), Suzukawa et al.
patent: 3877960 (1975-04-01), Knoss
patent: 3947165 (1976-03-01), Szatkowski
patent: 4104342 (1978-08-01), Wessel et al.
patent: 4246208 (1981-01-01), Dundas
patent: 4476071 (1984-10-01), Borer et al.

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