By Alicia Hartlieb and Martin Hartlieb, Viami International Inc., and Julio Quintero, Conticast Hormesa LLC. Introduction Traditionally, primary casthouses solidified the molten primary aluminum from the smelter’s potlines into pure ingot or sow, or they produced alloyed ingot, billet, or slab. Secondary casthouses served to convert scrap into secondary aluminum ingot, billet, or slab. Today, […]