Method for producing particle-shaped material

Details Method for producing particle-shaped material Method for producing particle-shaped material

2003-02-13

2009-12-08

Wyszomierski, George (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Processes

Producing solid particulate free metal directly from liquid...

C075S339000

Reexamination Certificate

active

07628838

ABSTRACT:
A method for producing particle shaped material from a melt. The method comprises the following steps: the material is melted, the material melt is intimately mixed with a gas in a predetermined ratio; the gas-liquid mixture is suddenly expanded and the material powder thus produced is collected, which the other gas is added to according to a predetermined air/liquid ratio during the expansion with solidification of the formed material drop, to form a material powder having a controlled size distribution and shape in an area of lower pressure than the gas/liquid mixture.

REFERENCES:
patent: 4218201 (1980-08-01), Kozima et al.
patent: 4343433 (1982-08-01), Sickles
patent: 6334884 (2002-01-01), Tornberg
patent: 6565342 (2003-05-01), Chow
patent: 6808568 (2004-10-01), Sekine

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