Method and apparatus for producing powders

Details Method and apparatus for producing powders Method and apparatus for producing powders

1992-07-23

1994-08-23

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Processes

Producing solid particulate free metal directly from liquid...

75336, 75338, 75346, B22F 910

Patent

active

053403770

ABSTRACT:
Apparatus for producing metal powders by atomization, the apparatus including melting means for melting the material to be atomized, an atomizing enclosure in which a dispersion head rotating at high speed is disposed to scatter the molten material in atomized form, means for cooling the atomized material and the head, and means for collecting the cooled powder material obtained in this way, said melting means including at least one vertical inductive plasma furnace producing an envelope of plasma-generating gases containing the top face of the dispersion head, and said cooling means comprising both a first series of members for dispensing a cooling fluid disposed in the top portion of the atomizing enclosure to create a cold zone at the periphery of the envelope, and a second series of members for circulating a cooling fluid disposed in the bottom portion of the enclosure to create a cold zone at the bottom face of the head.

REFERENCES:
patent: 4474604 (1984-10-01), Nakamura et al.
patent: 4781754 (1988-11-01), Soranno et al.
patent: 5084091 (1992-01-01), Yolton

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