Furnace for the production of spherical particles

Details Furnace for the production of spherical particles Furnace for the production of spherical particles

1976-11-30

1978-01-10

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Means making particulate material directly from liquid or...

By slinger or rotating liquid comminutor

264 8, B22D 2308

Patent

active

040676749

ABSTRACT:
Particles of perfectly spherical shape are produced within a vacuum-tight furnace chamber of small size by means of a movably mounted screen for stopping the particles discharged from a molten zone of an ingot which is driven in rotation at high speed. The rigid screen is formed of material having high thermal conductivity and is provided with a consumable coating on the surface which is struck by the particles. The coating is capable of producing a vapor atmosphere around the point of impact so as to modify the interfacial surface tension of the particles on the screen by means of a localized process of calefaction.

REFERENCES:
patent: 2439772 (1948-04-01), Gow
patent: 2439776 (1948-04-01), Klein et al.
patent: 3099041 (1963-07-01), Kaufmann
patent: 3196192 (1965-07-01), Vruggink et al.
patent: 3249657 (1966-05-01), Russo
patent: 3721511 (1973-03-01), Schlienger
patent: 3963812 (1976-06-01), Schlienger

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