Tungsten inert gas (TIG) welding device and method applicable to narrow-gap groove

A welding device and narrow gap technology, applied in the direction of welding equipment, electrode support device, welding rod characteristics, etc., can solve the problems of poor welding quality, difficult position, posture, etc., achieve low manufacturing cost, convenient welding work, and good welding effect Effect

Active Publication Date: 2016-02-10
BEIJING GUOWANG OPTICAL TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a TIG welding device and welding method suitable for narrow-gap grooves, so as to solve the problem that the head of the welding torch is limited by the groove space, and the position and posture are difficult to solve when welding narrow-gap grooves. Adjustment, leading to problems such as poor welding quality

Method used

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  • Tungsten inert gas (TIG) welding device and method applicable to narrow-gap groove
  • Tungsten inert gas (TIG) welding device and method applicable to narrow-gap groove

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Embodiment 1

[0047] A TIG welding device suitable for narrow gap grooves, the arrangement of each structure of the device is as follows figure 1 As shown, the groove structure of the workpiece before welding is a narrow gap groove 3, and the groove is narrow and deep. The gun body 11 in the welding torch 1 is located above the groove, and the thin and long tungsten electrode 13 extends into the groove, 5-10 mm away from the bottom surface of the groove, and in front of the welding torch 1 is an automatic wire feeding device. The welding torch 1 moves and continuously supplies the welding wire 4 . The rear side of the welding torch 1 is a protection unit 2, which includes a gas injection copper tube 21 inserted into the groove and following the tungsten electrode 13, and a welding support cover 22 floating above the groove and following the gun body 1.

[0048] Such as figure 2 As shown in the cutaway view of the partial structure, before the welding starts, the cable 5 is connected to t...

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Abstract

The invention discloses a tungsten inert gas (TIG) welding device and method applicable to a narrow-gap groove. The welding device comprises a welding gun (1) and a protective unit (2) located on the rear side of the welding gun (1), wherein the protective unit (2) is used for spraying protective gas to carry out gas protection on a welding area of the welding gun (1); a tungsten electrode (13) of the welding gun (1) can be directly inserted into the bottom of the narrow-gap groove (3) during welding. According to the TIG welding device and method applicable to the narrow-gap groove, the defect that the welding position of a traditional welding gun is unreachable during narrow-gap welding is overcome, gas protection is conducted on the welding area, and the TIG welding device and method applicable to the narrow-gap groove have the advantages of being simple in structure, reasonable in design, low in manufacturing cost, good in welding effect and the like.

Description

technical field [0001] The invention relates to the field of welding, and in particular provides a TIG welding device suitable for narrow gap grooves and a welding method thereof. Background technique [0002] In recent years, with the development of material science, some high-performance materials, such as titanium alloys, stainless steel, etc., are more and more used in the manufacturing process of equipment such as boilers, pumps, ships and ships, which often involve thick plates Material welding problems. TIG arc welding has a wide range of applications, simple operation, and strong environmental adaptability. It is especially suitable for welding difficult-to-weld materials such as titanium alloys and stainless steel, with high welding quality. At the same time, the use of narrow gap grooves in the welding of thick plate materials can reduce heat input and improve the quality of welds, and overcome the problem of large stress and deformation during thick plate welding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B23K9/28B23K9/02
CPCB23K9/0213B23K9/164B23K9/167B23K9/28
Inventor 崔庆龙张辉杨怀江隋永新
Owner BEIJING GUOWANG OPTICAL TECH CO LTD
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