METAL POWDER PRODUCING PROCESS Russian patent published in 2007 - IPC B22F9/10

Abstract RU 2302926 C2

FIELD: powder metallurgy, namely processes for producing metallic powders by spraying melts.

SUBSTANCE: method for producing metallic powder comprises steps of centrifugal spraying of melt by imparting rotation to melt preliminary applied in the form of film in chamber of centrifugal sprayer and its breaking down by action of centrifugal forces; imparting additional rotation to lower edge of melt film in direction coinciding with that of film own rotation at spacing from end of sprayer b = 1.7(ΔPr₀ ³/θ)^0.5 where ΔP - pressure in melt, Pa; r₀ -radius of sprayer nozzle, m; θ - surface tension, N/m.

EFFECT: improved dispersion degree of metal powder, enhanced uniformity of powder particle size.

4 cl, 2 tbl, 2 dwg

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RU 2 302 926 C2

Authors

Shejkhaliev Shejkhali Musaevich

Berjukhov Andrej Vladimirovich

Dates

2007-07-20—Published

2005-03-03—Filed