System and method for atomizing a titanium-based material

Details System and method for atomizing a titanium-based material System and method for atomizing a titanium-based material

1989-09-27

1991-03-12

Chaudhuri, Olik

Specialized metallurgical processes, compositions for use therei

Processes

Producing solid particulate free metal directly from liquid...

264 12, 264 13, 266236, B22D 2308

Patent

active

049990519

ABSTRACT:
A system and method for atomizing a titanium-based material to particulates in a controlled atmosphere. The system includes a crucible for skull melting a titanium-based material. The molten titanium-based material is transferred to a tundish for receiving the molten titanium-based material. The tundish has a bottom portion with an aperture formed therein and is heated. A molten metal nozzle for forming the molten titanium-based material into a free-falling stream exiting from the tundish is provided, the molten metal nozzle being coaxially aligned with the aperture of the tundish. A baffle may be disposed in the tundish for stabilizing the free-falling stream of the molten titanium-based material. The molten titanium-based material is atomized by impinging the free-falling stream of the molten titanium-based material with an inert gas jet issuing from a gas nozzle. The system also includes a device for cooling the atomized titanium-based material, and a device for collecting the cooled atomized titanium-based material. In the method, titanium is skull melted in a crucible. The molten titanium-based material is transferred to a heated tundish. The molten titanium-based material may be stabilized in the heated tundish and then formed into a free-falling stream. The free-falling stream of the molten titanium-based material is impinged with an inert gas jet to atomize the molten titanium-based material. The method also includes cooling the atomized titanium-based material, and collecting the cooled atomized titanium-based material.

REFERENCES:
patent: 4544404 (1985-10-01), Yolton et al.
Production and Characterization of Rapidly Solidified Titanium and Other Alloy Powders Mae by Gas Atomization, John Moll and C. F. Yolton, pp. 45-46, 1986.
Evaluation of Ti-10V-2Fe-3Al and Ti-10V-2Fe-3Al+Er Powder Produced by Atomization, P.T. Smith et al., 7/87 ASM Symposium, pp. 1-11.
Review and Status of Titanium Materials Produced From Spherical Prealloyed Powder, J. H. Moll & C. F. Yolton, Crucible Materials Corp. pp. 1-18.
Gas Atomized Titanium Powder, C. F. Yolton & J. H. Moll, Metals/Materials Technology Series, 2/86, pp. 97-100.

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