High pressure cyclone double layer gas protective welding gun

Abstract

The high pressure cyiclonic double layer gas protected welding gun includes one gun body with central tungsten electrode clamp holding cavity; one outer gas inlet pipe connected to the side wall of the gun body; one double layer nozzle connected to the lower part of the gun body and including one outer pipe, one outer pipe and one cyclone inside the outer pipe; one outer gas path connecting the outer gas inlet pipe and the outer pipe; one tungsten electrode clamp; one tungsten electrode with head extending beyond the double layer nozzle; one inner gas inlet pipe connected to the upper part of the gun body and communicated to the inner cavity of the tungsten electrode clamp. The present invention has weld protecting gases introduced through two different inlet passages to realize layered flow of the inner gas layer and the outer gas layer by means of the double layer nozzle.

Description

technical field [0001] The invention relates to the field of welding, in particular to a high-pressure swirling double-layer gas shielded welding torch which can make the inner and outer layers flow better in layers. Background technique [0002] For deep water TIG welding (the English full name of TIG welding is "Tungsten inert gas welding", and the Chinese name is "tungsten argon arc welding"), argon (Ar) arc welding is used, which is conducive to welding, but, in the welding process Argon (Ar) anesthesia is also prone to problems. In the 1960s, the method of double-layer gas shielded welding has begun to appear. This method is mainly to solve the problems of unsatisfactory arc characteristics and high gas prices in the process of inert gas shielded welding. The principle is to change the single-layer nozzle of the ordinary welding torch into a two-layer concentric nozzle, so that the inert gas and another cheaper protective gas are ejected from the inner and outer nozzle...

AI Technical Summary

Problems solved by technology

[0002] For deep water TIG welding (the English full name of TIG welding is "Tungsten inert gas welding", and the Chinese name is "tungsten argon arc welding"), argon (Ar) arc welding is used, which is conducive to welding, but, in the welding process Also prone to argon (Ar) anesthesia problems

In the 1960s, the double-layer gas shielded welding method has begun to appear. The emergence of this method is mainly to solve the problems of unsatisfactory arc characteristics and high gas prices in the process of inert gas shielded welding.

In addition, due to the poor maintenance of axial laminar flow and weak anti-interference ability, the distance between the nozzle and the workpiece is required to remain constant, so it can only be used for automatic welding and cannot be used for manual welding or semi-automatic welding.

Therefore, the application of traditional double-layer gas shielded welding torches is limited

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