METHOD AND DEVICE TO PRODUCE FINELY DISPERSED METAL POWDER Russian patent published in 2011 - IPC B22F9/12 

FIELD: metallurgy.

SUBSTANCE: proposed device comprises melted metal feed device, evaporator made up of cylindrical container closed by face covers with cylindrical heater arranged in container top section aligned with container face cover holes and furnished with bore for metal vapour to escape into condensation chamber, and condensation chamber. Proposed method comprises metal melting, its feed into evaporator container and vapour flow discharge into condensation chamber. Melted metal is fed into proposed device. First evaporator container is filled to 0.57-0.60 of its volume and, then, metal intermittent pulsed feed if performed with adjustment of preset melt level to allow intensive efflux of metal vapour from container into condensation chamber. Note here that container filling, heating and metal melt evaporation are carried out without contact between melt and heater at current density of 1.6-1.8 A/mm² over the heater section.

EFFECT: high specific power content, efficiency and yield.

6 cl, 1 tbl, 1 dwg, 1 ex