METHOD OF NANODISPERSED POWDER PRODUCTION AND DEVICE TO THIS END

摘要

FIELD: metallurgy.SUBSTANCE: set of invention relates to powder metallurgy. Proposed method comprises feed of aluminium powder and primary active gas to prechamber. These are mixed and ignited in said prechamber to change aluminium over in gas phase by self-sustaining exothermal reaction. Formed mix is fed into primary combustion chamber for afterburning of metal in gas phase at feed of secondary active gas, the air, and production of condensed combustion products. Prechamber walls are cooled down to rule out sticking of condensed phase thereto by feeding of gas chemically neutral to aluminium. Distilled water is fed into primary combustion chamber for cooling purposes. Produced condensed combustion products along with distilled water are fed into pickup device to cool formed suspension of said condensed products so that nanodispersed aluminium oxide powder can be isolated therefrom. A portion of said suspension is retuned to said pickup device after extra cooling. Invention proposes also the device to this end.EFFECT: efficient and stable process.5 cl, 1 dwg