DEVICE FOR ULTRADISPERSE METAL POWDER OBTAINMENT (VERSIONS) AND OBTAINMENT METHOD (VERSIONS) INVOLVING THIS DEVICE Russian patent published in 2015 - IPC B22F9/06 B22F9/12 B82Y30/00 

FIELD: metallurgy.

SUBSTANCE: device and method versions allow for obtainment of ultradisperse and nanosize metal monopowder. Device includes melting, evaporating and condensation chambers and evaporator. In the first version, evaporator features melting chamber with a floating trap hood in the bottom part. To stabilise temperature mode in evaporation chamber of evaporator, heat insulation screen is mounted at the bottom intake of evaporator, above upper end of multichannel atomiser. Atomiser channels for metal vapour discharge are tilted at 5-12° angle to the atomiser axis and at 90° angle to external conical surface of the atomiser. Condensation chamber is assembled of hollow cylindrical sections with cooling jacket and sight ports. In the second device version, spray shield with 0.8-1.2 mm wide vertical side slots along the perimeter of vertical cylindrical wall is mounted above upper surface of single-channel atomiser coaxially to it. Method versions allow for obtainment of ultradisperse metal powder with average grain size of 0.1-1 mcm and monodisperse metal powders, of nanosize as well, with average grain size under 100 nm.

EFFECT: improved metal powder quality, enhanced efficiency.

6 cl, 5 dwg, 1 ex