Water atomizer for low oxygen metal powders

Details Water atomizer for low oxygen metal powders Water atomizer for low oxygen metal powders

1976-12-09

1978-03-21

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Means making particulate material directly from liquid or...

By means applying fluid jet or blast to unconfined liquid...

264 12, B22D 2308

Patent

active

040801268

ABSTRACT:
Apparatus and method for water atomizing molten metal to provide a low oxygen metal powder. A molten metal stream is introduced to an atomization vessel containing a pressurized inert gas. The metal stream is atomized, by impingement of high pressure water within the atomization vessel. The atomization vessel has an exit aperture located so that the slurry of water and metal powder can exit from the atomization vessel only after deflection within the atomization vessel. Inert gas contained within the atomization vessel and entrapped within the slurry during atomization begins to leave the slurry during deflection, the inert gas returning to the atomization vessel atmosphere. The inert gas removal process continues after passage through the exit aperture and entrance into a closed degassing vessel. In this vessel, substantially all of the inert gas is removed from the slurry by gravity separation for return to the atmosphere of the atomization vessel, and the turbulent conditions initially present in the slurry are substantially dissipated prior to passage of the slurry from the closed degassing vessel.

REFERENCES:
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patent: 2956304 (1960-10-01), Batten et al.
patent: 3281893 (1966-11-01), Ayers
patent: 3533136 (1970-10-01), Holtz, Jr.
patent: 3752611 (1973-08-01), Reed et al.
patent: 3771929 (1973-11-01), Hellman et al.
patent: 3813196 (1974-05-01), Backstrom et al.
patent: 3814558 (1974-06-01), Ayers
patent: 4011290 (1977-03-01), Blomqvist et al.

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