METHOD FOR OBTAINING ALUMINIUM-TITANIUM-BORON ALLOY COMBINATION Russian patent published in 2012 - IPC C22C35/00 C22C21/00 

FIELD: metallurgy.

SUBSTANCE: method involves melting of primary aluminium, batch introduction to molten aluminium of titanium-containing and boron-containing components, mixing of molten metal and its pouring, cooling and heat treatment. As titanium-containing component there used is potassium hexafluorotitanate K₂TiF₆ in quantity of 10÷35 wt %, and as boron-containing component there used is crystalline boric acid H₃BO₃ in quantity of 4÷10 wt %. Titanium-containing and boron-containing components are pre-mixed and packed into cover from technical aluminium with weight of 0.2÷0.6 kg; packed components are added in portions to molten aluminium with temperature of 950÷1050°C; after that, molten metal is mixed and exposed during 0.2÷0.5 hours, and pouring of alloy combination is performed at molten metal temperature of 800÷850°C to water-cooled moulds with ratio of dimensions of length of casting to height and width of 15÷25:1÷1.5:1.5÷2 and weight of casting of 1.5÷2.5 kg; at that, cooling of molten metal in moulds is performed at the rate of 200÷250°C/min.

EFFECT: invention allows obtaining aluminium-titanium-boron alloy combination with high titanium content and low boron content, improving utulisation degree of technogenic wastes and reducing harmful effect on the environment.

2 cl, 1 dwg