Rotary atomizing process

Details Rotary atomizing process Rotary atomizing process

1982-12-27

1983-11-15

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing centrifugal force or rotating forming zone

B01J 202

Patent

active

044155115

ABSTRACT:
In the process of forming metal powders by rotary atomization, the atomizer disk is first coated with a stable compound of the molten metal to be poured or, if the metal to be poured is an alloy, the disk is coated with a compound of the base metal of the alloy. The coating compound is selected on the basis of its melting point and that it can coexist with the molten metal to be poured, at the pour temperature, as indicated by phase diagrams of the materials involved. The molten metal is poured onto the coated, spinning disk, couples with the coating, and forms a stable skull of itself over the coating. Fine droplets of molten metal are thereafter flung from the disk, cooled and collected.

REFERENCES:
patent: 2699576 (1955-01-01), Colbry et al.
patent: 3721511 (1973-03-01), Schlienger
patent: 4069045 (1978-01-01), Lundgren
patent: 4140462 (1979-02-01), Thompson
patent: 4178335 (1979-12-01), Metcalfe et al.
patent: 4207040 (1980-06-01), Metcalfe et al.
patent: 4310292 (1982-01-01), Carlson et al.

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