A double-zero aluminum foil thickness difference rolling method

Abstract

The invention relates to a double-zero aluminum foil thickness difference rolling method. The double-zero aluminum foil thickness difference rolling method comprises the steps of conducting rough rolling; conducting intermediate rolling, wherein intermediate rolling is conducted on a roughly rolled aluminum foil blank twice at different rolling reductions, according to one rolling reduction, the thickness is reduced to 0.014 mm from 0.03 mm, and according to the other rolling reduction, the thickness is reduced to 0.0118 mm from 0.03 mm; combining rolls, wherein the aluminum rolls of different thicknesses are trimmed and stacked after intermediate rolling, the aluminum rolls are coated with doubling oil in the process of trimming and stacking, and lubricating oil is added to the doubling oil at a certain ratio; conducting intermediate annealing and fine rolling, wherein the rolling reduction is 0.0258 mm, and namely the thickness is reduced to 0.011 mm from the sum of 0.014 mm and 0.0118 mm and is the sum of 0.006 mm and 0.008 mm; conducting splitting, wherein uncoiling and annealing are conducted on semi-finished products; conducting packaging. Rolling oil is used for lubricating and rolling, and the additive MAS-1 and the additive SET-12 are added to the rolling oil. By the adoption of the double-zero aluminum foil thickness difference rolling method, ultra-thin aluminum foil with the thickness being 0.005 mm can be stably produced by the adoption of a national aluminum foil mill, the rate of finished products of the aluminum foil is improved, the strip breakage rate is lowered, and the mechanical property and the quality of the aluminum foil are not influenced.

Description

technical field [0001] The invention relates to a production method of ultra-thin aluminum foil, in particular to a double-zero aluminum foil thickness difference rolling method. Background technique [0002] Aluminum foil is a thin sheet made of 6mm-7mm metal aluminum plate after repeated calendering. It is often used for food flexible packaging, pharmaceutical packaging, hot stamping materials, power capacitors and other purposes. Aluminum foil can be divided into thick foil, single zero foil and double zero foil according to the difference in thickness. The so-called thick foil is the aluminum foil whose thickness is between 0.1mm-0.2mm. A single zero foil is an aluminum foil whose thickness is between 0.01mm-0.1mm. Double zero foil is an aluminum foil whose thickness is less than 0.01mm. With the improvement of people's living standards, the application of double-zero aluminum foil is developing rapidly in the fields of food, beverage, medicine, dairy products, daily ...

AI Technical Summary

Problems solved by technology

If the domestic aluminum foil rolling mill is used to produce 0.005mm aluminum foil according to the general process, it is difficult to produce, the yield is less than 55%, and the broken strip rate is high and the pinholes are tens of thousands.

Therefore, domestic equipment has not been mass-produced