Patent ID: 9303299
Filing Date: 2016-04-05
CPC Classification: B22D,C22C,C22F

Claim Text:
1. A method of production of aluminum alloy with refined Al—Fe—Si-based compounds and primary crystal Si, said method comprising: adding to an aluminum alloy melt which contains Si: 10 to 20 mass %, Fe: 0.5 to 4 mass %, and P: 0.003 to 0.02 mass % and has a balance of Al and unavoidable impurities, a substance which contains particles of a metal silicide which are present as a solid phase in the melt during precipitation of an Al—Fe—Si-based compound, in 0.01 to 1 mass % as a silicide, wherein said particles function as heterogeneous nuclei for Al—Fe—Si-based precipitates and primary crystal Si.