Patent ID: 8403027
Filing Date: 2013-03-26
Classification: B22D,C22C

Abstract:
1. A method of casting metals comprising: providing a molten aluminum alloy to a casting apparatus, advancing the aluminum alloy at a speed ranging from between 50 feet per minute and about 300 feet per minute, wherein a point of complete solidification of the aluminum alloy is formed at the nip, wherein the aluminum alloy is advanced through the nip, by rotation of the first casting surface and by rotation of the second casting surface, wherein fine droplets of the immiscible alloying addition nucleate ahead of a solidification front created in the aluminum alloy thereby depositing the fine droplets between secondary dendrite arms of the aluminum alloy, wherein the fine droplets are less than three microns in size, and wherein the fine droplets of the immiscible alloying addition are uniformly distributed throughout the alloy.