Process for producing spheroidal co-base alloy particles...

Details Process for producing spheroidal co-base alloy particles... Process for producing spheroidal co-base alloy particles...

B - Operations, Transporting

22

F

18/500.1

B22F 9/08 (2006.01)

Patent

CA 1240108

ABSTRACT OF THE DISCLOSURE A process for producing metal granules from a molten Co-base alloy in a refractory vessel by dropping small globules of the melt into a coolant through a small- diameter nozzle provided at the bottom of said refractory vessel is disclosed. The nozzle has a vertical hole of an inside diameter of 0.3 to 3.0 mm; the globules of the melt emerging from said nozzle are dropped into a two-layered cooling medium composed of an overlying oil layer having a viscosity grade of 10 - 680 according to the ISO VG and underlying water layer; said globules are solidified and cooled as they pass through said cooling medium. Spherical Co-base alloy particles having a uniform size can be produced efficiently in a high yield.

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