| 摘要 |
PURPOSE:To obtain Al foil having large capacitance by subjecting an Al plate to hot rolling, primary annealing, cold rolling at a specified draft and final annealing. CONSTITUTION:An Al slab is hot-rolled, and the hot rolled Al plate is subjected to primary annealing at 200-400 deg.C, cold rolling at >=75% draft and final annealing. After the cold rolling is finished, secondary annealing, cold rolling at 5-35% draft and final annealing may be carried out. By this method, Al foil contg. a large percentage of recrystallized grains having cubic orientation and suitable for use as an electrode of an electrolytic capacitor is obtd.
|
