CASTING ALUMINIUM ALLOY Russian patent published in 2013 - IPC C22C21/10 

FIELD: metallurgy.

SUBSTANCE: alloy contains the following, wt %: silicon 6.6-7.4, magnesium 0.31-0.45, copper 0.18-0.32, manganese 0.15-0.45, iron 0.15-0.4, aluminium is the rest, at that, the alloy has liquidus temperature within 608 to 620°C; temperature of balanced solidus of not less than 552°C and structure after heat treatment as per mode T66, which contains the amount of inclusions of silicon phase within 6.4 to 7.5 vol. %; iron in the alloy structure is completely bound to skeletal inclusions of phase Al₁₅(Fe,Mn)₃Si₂, and magnesium is completely bound to secondary extractions of phase Al₁₅Cu₂Mg₈Si₆.

EFFECT: creation of alloy for obtaining high-duty shaped castings and having high technological and operating characteristics.

2 cl, 2 tbl, 2 ex, 2 dwg