Patent ID: 7025113
Filing Date: 2006-04-11
Classification: B22D,C22C,Y10S

Abstract:
1. A rheocasting method for semi-solid metal casting, comprising: providing a first alloy, the first alloy including an aluminum-silicon hypoeutectic alloy; providing a second alloy, the second alloy including a grain refiner; providing a reactive material; liquefying at least one of the first alloy and the second alloy by heating to a first temperature; combining the reactive material and the second alloy to form a mixture; combining the first alloy and the mixture to form a combination; generating a semi-solid metal by cooling the combination to a second temperature, wherein the semi-solid metal includes a multitude of aluminum particles having a particle size and a particle number; injecting the semi-solid metal into a die cavity to form a cast product; and controlling the particle size and the particle number by modulating the second temperature and an elapse time between the generation of the semi-solid metal and the injection.