Dual tungsten electrodes welding torch in use for argon are welding

Abstract

An argon shielded arc welding torch with two tungsten electrodes is composed of main body, two electric conducting bodies parallel in the main body, two tungsten electrodes fixed to lower ends of said electric conducting bodies, two cable fastening screw bolts, and an insulating plate between two electric conducting bodies.

Description

Technical field:

[0001] The invention relates to the improvement of the structure of argon tungsten arc welding torch. Background technique:

[0002] Tungsten argon arc welding (TIG) has always been one of the most widely used welding methods due to its advantages of high welding quality, stable process, good controllability, and suitable for all-position welding. It works as figure 1 shown. However, there is only one tungsten electrode in the traditional TIG welding gun. Due to the inherent heat capacity of the tungsten electrode and the limitation of single arc pressure, the rated current that can be used is small, and the heat input is small, and the welding deposition rate is lower than many other welding methods. These shortcomings make the traditional single tungsten electrode TIG welding only applicable to the welding of thin plates (below 3 mm) and backing welding of thick plates. How to improve the welding deposition rate and welding efficiency while retaining th...

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