At present, the cast rolling process applied to aluminum foil blanks is gradually maturing, and more and more enterprises have begun to use the cast rolling process to produce aluminum foil, and cast rolling has become the mainstream front-end process for aluminum foil. Cast rolling appeared in the 1970s, and the technology is still not perfect.
In recent years, GNEE Materials has independently developed the "casting and rolling - cold rolling short process green manufacturing technology", which has been successfully applied to high-end products such as double-zero foil and power battery foil. The technology from the composition optimization, melting process, continuous casting and rolling process and cold rolling / foil rolling process process process optimization, as well as performance testing, quality control technology for the whole industry chain innovation, the use of casting and rolling method instead of hot rolling method to produce aluminum foil / sheet for power batteries, reduce the production cost of aluminum foil / sheet for power batteries, improve the competitiveness of the market, and to a large extent to promote the development of the battery aluminum processing industry in China. Development.
After being made into aluminum foil billets, the foil billets are rolled through a series of roughing, intermediate and finishing rolls to form aluminum foils of different thicknesses, and then annealed for finished products. Generally speaking, thick foils only need to be rough rolled, single-zero foils need to be rough rolled and medium rolled, and double-zero foils and other aluminum foils with higher precision requirements need to be rough rolled, medium rolled and finish rolled.