Stainless steel pipeline welding remote control argon filling device

Abstract

The invention relates to a stainless steel pipeline welding remote control argon filling device. The stainless steel pipeline welding remote control argon filling device comprises a telescopic type fixing frame used for being placed near a welding line inside a stainless steel pipeline, a small electromotor with a rotating shaft is mounted in the center of the telescopic type fixing frame, an argon filling steel pipe is connected to the rotating shaft of the small electromotor, the argon filling steel pipe penetrates through the small electromotor and is connected with a hose special for supplying argon, the hose special for supplying the argon is connected with an external argon filling device or an argon cylinder, an argon outlet of the argon filling steel pipe is connected with an argon spray nozzle through a screw rod, and the argon spray nozzle exactly faces a root gap of the welding line. The stainless steel pipeline welding remote control argon filling device is reliable in effect, convenient and fast to use, low in argon consumption and suitable for the internal argon filling of pipelines which have different pipe diameters and can be used repeatedly. The stainless steel pipeline welding remote control argon filling device has good practical application value and popularization value.

Description

technical field [0001] The invention relates to an argon charging device, in particular to a remote control argon charging device for stainless steel pipe welding which is suitable for argon filling protection on the back of the groove when stainless steel pipes with different pipe diameters and different lengths are welded. Background technique [0002] In the field of engineering construction, when welding stainless steel pipes, the single-sided welding and double-sided forming technology is generally adopted. In order to ensure the quality of the welding joint and the cleanliness inside the stainless steel pipeline, the TIG welding method is usually used. When welding the root and the sub-layer weld bead, the back of the groove is generally filled with inert gas argon to isolate the air protection, so as to prevent the root welding of the inner wall of the pipeline. seam oxidation. [0003] At present, the traditional argon filling method usually uses sponge, carton boar...

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Problems solved by technology

[0004] In order to solve the disadvantages of large argon consumption, long replacement time and frequent replacement of plugging materials in the existing argon filling method, the present invention needs to waste a long time especially when the pipe diameter is large and the pipeline is long Carry out replacement air for pre-welding preparation work. Once the replacement is not clean, it will cause oxidation on the back of the weld, and a large amount of argon gas will be wasted, which will increase the construction cost of the project. A remote control argon charging device for stainless steel pipe welding is provided.

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