Welding test method for collector plate and shell of cylindrical capacitor battery

Abstract

The invention provides a welding test method for a collector plate and a shell of a cylindrical capacitor battery. The welding test method comprises the following steps that firstly, different position relations between the collector plate in the cylindrical capacitor battery and the shell of the cylindrical capacitor battery are determined; and then welding devices with different groups of welding parameter values are adopted to weld the collector plate and the shell with different position relations, welding seam width data and keyhole real-time fusion depth data corresponding to each position relation are collected to be processed and analyzed, and a welding quality test result during welding is determined. The influence of different groups of welding parameter values on the welding seam width data and the keyhole real-time fusion depth data in the welding process can be researched according to the welding quality test result during welding, and then according to the welding quality test result during welding, a group of welding parameter values of one welding device can be selected to carry out welding with the specific welding seam width requirement and the specific fusion depth requirement, and the welding device can also be used for selecting the position relation of the collector plate and the shell during welding so as to guarantee the welding quality of the collector plate and the shell.

Description

technical field [0001] The invention relates to the technical field of laser welding, in particular to a method for testing the welding of a cylindrical capacitor battery collector disc shell. Background technique [0002] At present, in the process of assembling the cylindrical capacitor battery, after obtaining the cell welded with the collector plate, it is necessary to weld the shell on the collector plate to isolate the cell of the cylindrical capacitor battery from the outside world and realize the protection of the cylindrical capacitor battery. Battery protection. [0003] However, due to the difference in the positional relationship between the collector plate and the shell during welding, it will affect the welding effect, which is not conducive to the guarantee of the welding quality of the collector plate shell. [0004] For this reason, there is an urgent need to provide a welding test method for the current collector plate shell of a cylindrical capacitor batt...

Images