Patent ID: 6789602
Filing Date: 2004-09-14
Classification: B21B,B22D,C22F

Abstract:
A process for producing an aluminum alloy sheet product having a controlled recrystallization using a continuous caster to cast a molten aluminum alloy into a slab comprising:(a) providing a source of molten aluminum alloy; (b) providing a caster for continuously casting said molten aluminum alloy into a slab; (c) rolling said slab into a sheet product; (d) continuously annealing said sheet product at a temperature in a controlled temperature range; (e) measuring degree of recrystallization of said sheet product on a continuous basis to provide a recrystallization related signal; (f) relaying said signal to a controller; (g) in said controller, comparing said signal to previous signals relating degree of recrystallization of said sheet product to provide a comparison; and (h) in response to said comparison, maintaining or changing said temperature in said temperature range upwardly or downwardly to produce aluminum sheet product having desired recrystallization.