High pressure cyclone double layer gas protective welding gun

A gas shielded welding and high-pressure swirl technology, which is applied in the directions of gas fuel burners, combustion methods, combustion types, etc., can solve the problems of unsatisfactory arc characteristics, weak anti-interference ability, and high gas prices, and improve the maintenance of axial laminar flow. performance, enhanced anti-interference ability, flexible welding effect
CN1821659AActive Publication Date: 2006-08-23CHINA NAT OFFSHORE OIL CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2006-08-23

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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.
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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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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