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Welding device and copper liner

A welding device and copper lining technology, applied in welding equipment, welding accessories, arc welding equipment, etc., can solve the problems of poor back forming, poor welding quality, wire threading, etc., and achieve the effect of improving quality and reducing molten pool drop

Active Publication Date: 2016-03-02
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when using the internal counterpart for automatic root welding, because the back of the weld pool is suspended, there will be problems such as wire threading, unmelted and poor back molding, resulting in poor welding quality

Method used

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  • Welding device and copper liner
  • Welding device and copper liner
  • Welding device and copper liner

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Experimental program
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Embodiment Construction

[0022] The invention provides a welding device and a copper lining, which can reduce the probability that the molten pool will not fall to the inner wall surface of the pipeline along the groove gap when using the inner butt joint for automatic root welding, so that the occurrence of wire threading, unmelting and The probability of poor backside forming is reduced and the quality of the soldering is improved.

[0023] In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] see figure 1 , figure 2 and image 3 , the embodiment of the present invention provides a welding device, including a mandrel 1, a height adjustment device 2, an elastic member 3, and a copper lining 4, wherein the height adjustment device 2 is arranged on the ejector bar 1, and the copper lining 4 is arranged on the ejector bar. 1, and the copper lining 4 is...

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PUM

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Abstract

The invention discloses a welding device and a copper liner. The welding device comprises an ejector rod, a height adjusting device, an elastic piece and the copper line, wherein the height adjusting device is arranged on the ejector rod, the copper liner is arranged at the top end of the ejector rod and attached to a welding pipe, and the elastic piece is arranged between the copper liner and the height adjusting device; a groove is formed in the attaching face, making contact with the welding pipe, of the copper liner and used for supporting a welding molten bath. According to the welding device and the copper liner, when an internal clamp is used for conducting automatic root welding, the probability that the molten bath does not fall to the inner wall of the pipe along a bevel is reduced, the probability of penetrating, non-melting and poor back face molding is also reduced, and the welding quality is improved.

Description

technical field [0001] The invention relates to the technical field of oil and natural gas pipeline welding, in particular to a welding device and a copper lining. Background technique [0002] As the main supporting equipment for automatic pipeline welding, the existing internal matching device is widely used in the construction site of long-distance pipelines, providing technical support for the rapid assembly of nozzles and subsequent nozzle welding. [0003] However, when using the inner butt joint for automatic root welding, because the back side of the weld pool is suspended, there will be problems such as wire threading, unmelting and poor backside forming, resulting in poor welding quality. SUMMARY OF THE INVENTION [0004] The invention provides a welding device and a copper lining, which can reduce the probability that the molten pool will not fall to the inner wall surface of the pipeline along the groove gap when using the inner butt joint for automatic root we...

Claims

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Application Information

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IPC IPC(8): B23K9/035B23K9/16B23K9/32
CPCB23K9/0356B23K9/164B23K9/32B23K2101/10
Inventor 尹铁陈涛周伦张锋郭奇超张倩刘晓文邓俊梁天军
Owner BC P INC CHINA NAT PETROLEUM CORP
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