| 摘要 |
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(DeltaPr0 3/theta)0.5 where DeltaP - pressure in melt, Pa; r0 -radius of sprayer nozzle, m; theta - surface tension, N/m. ^ EFFECT: improved dispersion degree of metal powder, enhanced uniformity of powder particle size. ^ 4 cl, 2 tbl, 2 dwg |
