公开(公告)号：WO1997036017A1

公开(公告)日：1997-10-02

申请号：PCT/US1997004119

申请日：1997-03-14

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  WARD, Bennie, R. ,  HUGHES, Richard, E. ,  MARTIN, James, P.

IPC: C22F01/00

CPC classification number: C22F1/04 ,  C22C21/00 ,  C22C21/02 ,  C22F1/043

Abstract: A method of making an aluminum foil product from an aluminum silicon-iron alloy comprises casting the alloy into a slab, preferably by twin roll casting, cold rolling, the alloy to an intermediate gauge and reroll annealing the intermediate gauge material. The reroll annealed material is then cold rolled to a final foil gauge followed by a final recrystallizing anneal. The aluminum alloy has a controlled amount of silicon and iron such that the silicon is equal to or greater than the iron amount and the reroll temperature is 800 DEG F (427 DEG C) or less. The combination of the controlled amounts of silicon and iron and the lower reroll anneal temperature results in an improved foil product in terms of finer grain size and higher elongation which is also less costly to produce.

Abstract translation: 从铝硅铁合金制造铝箔产品的方法包括将合金铸造成板坯，优选通过双辊铸造，冷轧，合金到中间量规并对中间规格材料进行退火退火。 然后将再循环退火的材料冷轧至最终的箔规，然后进行最终的再结晶退火。 铝合金具有受控量的硅和铁，使得硅等于或大于铁量，并且再循环温度为800°F（427℃）或更低。 硅和铁的受控量的组合以及较低的再循环退火温度导致了在更细的晶粒尺寸和更高的伸长率方面改进的箔产品，其生产成本也较低。