A method for manufacturing an electrode assembly for an automotive metal halide lamp

Abstract

The invention relates to a production method of an electrode component for an automotive metal halide lamp. A tungsten wire tool is used for clamping a tungsten wire to be processed; a molybdenum chip fixture is used for fixing a molybdenum chip to be processed; and after the position, to be processed, of the tungsten wire is precisely controlled, a laser generated by a laser generator is output through a laser emitting head to perform the welding connection for the tungsten wire and the molybdenum chip. Compared with the prior art, a product, produced by the production method, has the advantages of good welding consistency, quality guarantee and large improvement of welding efficiency.

Description

Technical field

[0001] The present invention relates to a method for manufacturing an electrode assembly, in particular to a method for manufacturing an electrode assembly for automobile metal halide lamps. Background technique

[0002] The welding of tungsten wire electrodes in automobile metal halide lamps has always been the traditional electrode resistance welding. This technology uses upper and lower tungsten electrode discharge welding, that is, the tungsten wire and the molybdenum sheet are pressed between the two electrodes, and a current is applied. A method of heating the workpiece to a molten or plastic state by the resistance heating effect generated by the contact surface of the workpiece and the adjacent area to form a metal bond. Due to the influence of many factors, it is difficult to guarantee the quality of the products after welding, and the consistency of welding strength is very poor, which has the following shortcomings:

[0003] (1) The contact surface of th...

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