Production method for cast rolling 1100 alloy aluminum foil for mobile-phone battery shell

Abstract

Provided is a production method for cast rolling 1100 alloy aluminum foil for a mobile-phone battery shell. The production processes of the production method comprise batching, smelting, cast rolling, cold rolling, recrystallization annealing, cold rolling, trimming, low temperature tempering and foil rolling. In the cold rolling process, blanks obtained by cast rolling are processed to be 3.0-4.0 mm by cold rolling and then recrystallization annealing is performed, one pass of large reduction cold rolling is performed on the blanks which are processed by recrystallization annealing, the pass processing rate is 40%-60%, and finally the blanks which are processed by large reduction cold rolling are rolled to the design thickness of the aluminum foil. According to the production method for cast rolling the 1100 alloy aluminum foil for the mobile-phone battery shell, the blanks are cold rolled to be 3.0-4.0 mm and then recrystallization annealing is performed, the internal grain sizes of the blanks which are processed by recrystallization annealing are increased, and the purpose of improving the performance of cast rolling materials can be achieved by using large reduction cold rolling for smashing the grains; the 1100 alloy aluminum foil obtained by the production method has good buckling performance and Vickers hardness, and can meet the usage requirements of materials for the mobile-phone battery shell.

Description

technical field [0001] The invention relates to a production method of alloy aluminum foil, in particular to a production method of cast-rolled 1100 alloy aluminum foil for mobile phone battery shells. Background technique [0002] Due to its price advantage, cast-rolled wool can meet the requirements of reducing the cost of mobile phone battery casings. However, the strip produced by the casting and rolling process has the defects of serious segregation and uneven structure. Therefore, the cast-rolled aluminum foil produced by the traditional process has the characteristics of high tensile strength, low elongation and poor bending performance, which causes problems in forming difficult and easy to crack during the production of battery casings; at the same time, the existing casting Rolled aluminum foil also has the problems of unstable performance and difficult control of the Vickers hardness of the finished product, which is not conducive to stable production. Contents...

AI Technical Summary

Problems solved by technology

However, the strip produced by the casting and rolling process has the defects of serious segregation and uneven structure

Therefore, the cast-rolled aluminum foil produced by the traditional process has the characteristics of high tensile strength, low elongation and poor bending performance, which causes pr