Method for manufacturing a metal powder by granulation of a meta

Details Method for manufacturing a metal powder by granulation of a meta Method for manufacturing a metal powder by granulation of a meta

1981-02-23

1983-05-10

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By impinging or atomizing with gaseous jet or blast

264 13, 264 14, B01J 204

Patent

active

043829031

ABSTRACT:
A method for granulating a metal melt wherein a tap stream of molten metal is granulated by directing a jet of gas having a trough-shaped cross-section against the side of the tap stream such that the tap stream is formed into droplets which are thrown into a parabolic trajectory. An additional gas jet is also directed towards the tap stream so that it hits both the trough-shaped gas jet and the tap stream, the additional gas jet acting to prevent the droplets of metal melt from moving towards the nozzle from which the trough-shaped jet of gas emanates. The nozzle which emits the trough-shaped jet of gas can thus be positioned very closely to the side of the tap stream without becoming clogged with deposited droplets of metal melt.

REFERENCES:
patent: 2308584 (1943-01-01), Best
patent: 3150947 (1964-09-01), Bland
patent: 4113456 (1978-09-01), Levecque et al.
patent: 4124377 (1978-11-01), Larson

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