Method of improving surface quality of light gauge aluminum foil preform body

Abstract

The invention relates to the manufacturing technique of aluminum and aluminum alloy foil, particularly to a method of improving the surface quality of light gauge aluminum foil preform body. The method is that in a process of manufacturing light gauge aluminum foil by means of cast-rolling and cold rolling, when the cast-rolling or the cold rolling is finished and the rolling-up of the preform body is finished, edges of two sides of a roll end of an aluminum roll are fixed on two sides of roll under layer material in a welded mode. The welding range of two side faces of the aluminum roll is 3 - 5 mm deep relative to the surface, and therefore the aluminum roll of the preform body is fixed. Due to the fact that the aluminum roll of the preform body is fixed in a welded mode, the firmness of the fixation of the preform body in subsequent handling (especially after the heat treatment) is effectively improved, scratching is avoided, the surface quality of the preform body is improved, and further the rate of finished products of the light gauge aluminum foil is increased, the rate of strip breakage is decreased, the occurrence of defects like pinholes on a board face is reduced, and then the thickness of the light gauge aluminum foil can be rolled to 0.0055 mm while traditional preform body can only be rolled to 0.006 mm thick in general.

Description

technical field [0001] The invention relates to the manufacturing technology of aluminum and aluminum alloy foil materials, in particular to a method for improving the surface quality of double-zero aluminum foil blanks. Background technique [0002] The process of producing double-zero aluminum foil by casting-rolling + cold-rolling usually includes smelting, casting-rolling, cold-rolling, intermediate annealing, secondary cold-rolling, longitudinal shearing, and foil-rolled products. The blank aluminum coil needs to be fixed before entering the next process. Currently, the blanks used to produce double zero foil are fixed by steel strips to prevent loose layers and scratches. However, in reality, there will still be some loose coils during the transfer process of billet aluminum coils fixed with steel strips. Especially during the annealing process after the cold rolling process, the aluminum coils will expand with heat and contract with cold. The belt is not fixed and te...

AI Technical Summary

Problems solved by technology

However, in reality, there will still be some loose coils during the transfer process of billet aluminum coils fixed with steel strips. Especially during the annealing process after the cold rolling process, the aluminum coils will expand with heat and contract with cold. The belt is not fixed and tends to fall off, causing misalignment between the layers of the aluminum coil, causing scratches, affecting the surface quality, and reducing the yield of double-zero aluminum foil with the reduction of the thickness of the aluminum foil during the foil rolling process. , increased broken bands, and increased pinholes on the surface, which limit the further reduction of the thickness of the double-zero aluminum foil