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US 5,855,642 AGranted
System and method for producing fine metallic and ceramic powders
AssigneeStarmet Corporation
InventorsSteven A. Miller, Henry J. DeMita
Life of this patent
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Abstract
A system and method for producing fine powders. The system includes a rotary atomization device for forming a moving flow of a molten source material; a source of atomizing material; a nozzle for directing a jet of the atomizing material at the moving flow of molten source material for atomizing and for producing fine droplets of the source material; and a chamber for collecting the fine droplets.
Claims68
A system for producing fine powders, the system comprising:
- means for forming a radially moving flow of molten source material;
- a source of atomizing material;
- means, located within 75 mm of said means for forming, for directing a jet of the atomizing material at the moving flow of molten source material for atomizing and for producing fine droplets of the source material, the jet of atomizing material having a velocity at least three times the velocity of the moving flow of molten source material;
- and
- means for collecting said fine droplets.
2 more elements
A system for producing fine powders, the system comprising:
- a consumable bar of a source material;
- means for melting a surface of said bar;
- means for rotating said bar to cast molten source material off said surface;
- and
- means, located within 75 mm of said rotating bar, for directing a jet of atomizing material at the molten source material for atomizing and producing fine droplets of said source material, the jet of atomizing material having a velocity which is at least three times the velocity of the molten source material.
2 more elements
A system for producing fine powders, the system comprising:
- a disk;
- a molten supply of a source material;
- means for transferring a stream of said molten source material to a surface of said disk;
- means for rotating said disk to cast molten source material off said disk surface;
- and
- means, located within 75 mm of an edge of said disk surface, for directing a jet of atomizing material at the molten source material for atomizing and for producing fine droplets of the source material, the jet of atomizing material having a velocity which is at least three times the velocity of the cast off molten source material.
3 more elements
Dependencies are inferred from the claim text.