Formed foil connection method

Abstract

A formed foil connection method comprises the following steps that the roll tail end of a front aluminum foil roll is trimmed to be smooth and free of burrs, and the roll head end of a rear aluminum foil roll is trimmed to be smooth and free of burrs; a connection aluminum foil is selected to be connected between the roll tail end of the front aluminum foil roll and the roll head end of the rear aluminum foil roll in a lapping mode, wherein the thickness of the connection aluminum foil differs from the thicknesses of the front aluminum foil roll and the rear aluminum foil roll by 30 [mu]m; the roll tail lap joint area between the connection aluminum foil and the roll tail end of the front aluminum foil roll is fixed; and the roll head lap joint area between the connection aluminum foil and the roll head end of the rear aluminum foil roll is fixed to complete foil connection. Compared with a common method, according to the mode that the front aluminum foil roll and the rear aluminum foil roll are directly connected in a lapping mode for fixing, the tensile strength is reinforced, the bending resistance capacity is high, and the problems of breakage and tearing are fundamentally solved.

Description

technical field [0001] The invention relates to the technical field of joining aluminum foils, in particular to a method for forming formed foils and joining foils. Background technique [0002] After the light foil is corroded, many tiny cavities are formed on the surface of the aluminum foil. At this time, the tensile strength and bending strength of the aluminum foil are greatly reduced. After the chemical formation process, an oxide film on one side is formed on the surface of the aluminum foil. . [0003] For continuous production, before the corroded foil enters the formation process, the tail end of the previous roll of aluminum foil and the head end of the next roll of aluminum should be connected to facilitate the substitution of the next roll of aluminum foil from the previous roll of aluminum foil into the chemical formation equipment middle. [0004] The commonly used method of joining the foil is to overlap and overlap the tail end of the previous roll of alum...

AI Technical Summary

Problems solved by technology

[0004] The commonly used method of joining the foil is to overlap and overlap the tail end of the previous roll of aluminum foil and the head end of the next roll of aluminum, and then use a hammer to fix the overlapping area. During the equipment, the overlapping area is easy to break, causing the previous roll of aluminum foil and the next roll of aluminum foil to be disconnected, and continuous production cannot be guaranteed

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