Patent ID: 6123899
Filing Date: 2000-09-26
Classification: C22C

Abstract:
A master alloy hardener for use in preparing an aluminum base alloy containing 2 or more alloying elements, consisting essentially of the alloying elements in said aluminum base alloy selected from the group consisting of silicon, iron, chromium, zinc, copper, magnesium, manganese, nickel, lead, bismuth, zirconium, boron, strontium, titanium, beryllium, sodium, calcium, phosphorous and antimony and mixtures thereof at concentrations that are a multiple equal to or greater than 2 and up to 50 of the concentrations of said alloying elements in said base alloy, wherein the ratios of the concentrations of said alloying elements in said master alloy hardener to each other are the same as the ratios of the concentrations of said alloying elements to each other in said base alloy wherein said base alloy is selected from the group consisting of a cast or ingot aluminum alloy and a wrought aluminum alloy.