Short process of an ultra-thin aluminium production process , characterized in that : it is carried out according to the following process steps :

The first step , melting : a large-capacity regenerative aluminium melting furnace into the molten aluminium through the trough into the casting machine , the molten aluminium flow process , the refiner Al-Ti-B line addition , the formation of a continuous and uniform refinement ; graphite rotor at 730-735 ℃ under online degassing , slag to form a continuous uniform scavenging effect ;

The second step, rough rolling : the first step in introducing molten aluminium smelting after casting machine casting into billets ; During this process , the roller body cavity cooling water inlet temperature was controlled at 20-23 ℃, water temperature control 28-32 ℃, roll sutural aluminium melt static pressure is controlled at 0.004-0.005Mpa, ensure that the material of {100} crystal orientation rate of > 95% , the grain size of ≤ 5μm, rolling a slab of 6.5-7.5mm ;

The third step , the intermediate rolling : the above-described slab units with a re- cold rolling to a thickness of 4.5mm , it will be fed into the furnace and heated to 360 ℃, incubated for 2 hours, heating was continued until 580 ℃ , heat for 18 hours for homogenization annealing, the grain size uniform , consistent direction ; then continues inside the cold rolled to 0.60mm, it again into the annealing furnace , heated to 460 ℃, incubated 5 hours after cooling to 400 ℃, for 7 hours with an intermediate annealing ; then to rolling to a thickness of 0.3mm as foil stock ;

The fourth step, foil roll : roll with four irreversible foil rolling mill of the above 0.3mm aluminium foil wool rolled into finished products . The ultra-thin aluminium foil production process is short, low operating costs, investment in small-scale production , and the production of ultra-thin aluminium foil quality can reach the international most advanced level , compared to hot-rolled production process , reduce the production cost of the blank two-thirds of operating costs by more than half .