A method is described for making an aluminum alloy foil suitable for application to fins used in heat exchangers. The method comprises providing an aluminum alloy composition containing about 0.27% to about 0.55% by weight of iron, about 0.06% to about 0.55% by weight of silicon and optionally up to about 0.20% by weight of copper; continuously casting a coiled strip from the molten aluminum alloy; cold rolling the continuously cast coil to a final gauge of about 0.076 mm to about 0.152 mm and partially annealing the aluminum alloy sheet at a temperature below about 260 DEG C, with a maximum overheat of about 10 DEG C to anneal the aluminum alloy foil substantially without any recrystallization.
申请公布号
WO0204690(A3)
申请公布日期
2002.04.04
申请号
WO2001CA00965
申请日期
2001.07.04
申请人
ALCAN INTERNATIONAL LIMITED;DAVISSON, THOMAS, L.;MONTGRAIN, LUC;NADKARNI, SADASHIV