Aluminum Foil Rolls Double Zero 8011
Double zero aluminum foil refers to the aluminum foil with two zeros after the decimal point when the thickness is measured in millimeters. It can be widely used in food, beverage, cigarette, medicine, daily necessities packaging, capacitor manufacturing and other fields. At present, double zero aluminum foil with a thickness of about 0.006mm is used in a large area in the world. To further reduce the thickness, improve the mechanical properties of the double zero foil, and reduce the pinhole rate is the development direction of the double zero aluminum foil. There are only a handful of companies at home and abroad that can produce ultra-thin aluminum foil (less than 0.0050mm).
8011 double zero aluminum foil can be produced by casting-rolling method and hot-rolling method. The casting-rolling method has low cost, short process flow and obvious economic benefits. Most Chinese aluminum foil manufacturers use this method; while the hot rolling method has stable production performance and relatively high cost. Developed countries mainly use the hot rolling method for production, and a few Chinese enterprises also use the hot rolling method for production. The stable production of high-quality ultra-thin double zero aluminum foil by hot rolling is mainly an intermediate annealing process that controls the uniformity of the ingot structure and the second phase nucleation, growth and distribution. The choice of annealing process has a significant effect on the precipitation and distribution of the second phase. Significant influence. Especially for the production of ultra-thin double zero aluminum foil by hot rolling, there are many annealing times and long cycle. Homogenizing annealing, intermediate annealing (requiring multiple times), and fine annealing require precise control.
In the prior art, manufacturers of preparing double zero aluminum foil follow the following process: first cast the molten aluminum ingot, heat it uniformly, and then perform hot continuous rolling and cold rolling on the ingot to obtain aluminum foil blanks, and then perform an intermediate annealing. After the intermediate annealing, continue cold rolling and foil rolling of the aluminum foil blank to obtain a double zero aluminum foil product with a thickness of less than 0.01 mm, and then perform finished product rolling according to product requirements. Provided is a double-zero aluminum foil and a production method thereof, which adopts a hot rolling method and a combined annealing process. The combined annealing process includes a homogenization annealing process, an intermediate annealing process, and a finished annealing process. The double-zero aluminum foil is produced by using the method. The number of holes is effectively reduced, and the double zero aluminum foil has higher strength and elongation.
For details on the thickness of aluminum foil rolls, please see Aluminium Foil Rolls 0.009mm to 0.02mm
