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A method for removing welding slag and welding tumor on the inner wall of steel pipeline

A pipe and weld bead technology, which is applied to the removal of welding slag and weld bead on the inner wall of steel pipes, and can solve problems such as prolonging the construction period

Active Publication Date: 2021-05-14
马富君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the removal of welding slag and welding burrs on the inner wall of steel pipes is usually to open a skylight near the weld seam with welding burrs, cut the pipe with gas cutting, use a grinder to smooth the welding slag and welding burrs, and then restore the skylight Welding, which not only prolongs the construction period, but also adds many weak points to the pipeline matrix

Method used

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  • A method for removing welding slag and welding tumor on the inner wall of steel pipeline

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 , a method for removing welding slag and welding tumors on the inner wall of steel pipes, the specific steps are as follows:

[0030] 1. Detect the inner diameter of the pipeline 1. According to the inner diameter of the pipeline 1, process the dynamic seal support component 5. The dynamic seal support component 5 is prefabricated with rubber material with good elasticity and good wear resistance. The diameter of the dynamic seal support component 5 is too large. The amount is 1.5-5% of the inner diameter of the pipeline 1; the processing file grinding elastic assembly 6, the filing elastic assembly 6 is processed by spring steel material with good elasticity, and the elastic force is 30-50kg; Grinding knife 4 is made of hard and wear-resistant tool steel material, and the radius of curvature of the toothed arc surface of grinding knife 4 is equal to that of the inner wall of pipeline 1; Assembled and combined tumor removal device: install dynamic seal asse...

Embodiment 2

[0037] see figure 1 , a method for removing welding slag and welding tumors on the inner wall of steel pipes, the specific steps are as follows:

[0038]1. Detect the inner diameter of the pipeline 1. According to the inner diameter of the pipeline 1, process the dynamic seal support component 5. The dynamic seal support component 5 is prefabricated with polyurethane material with good elasticity and good wear resistance. The diameter of the dynamic seal support component 5 is excessive. The amount is 1.5-5% of the inner diameter of the pipe 1; the processing file and grinding elastic component 6, the filing and grinding elastic component 6 is made of stainless steel with good elasticity, and the elastic force is 30-50kg; Knife 4 is made of hard and wear-resistant alloy steel, and the radius of curvature of the toothed arc surface of knife grinding knife 4 is equal to the inner wall of pipe 1; Assembled and combined tumor removal device: install dynamic seal assembly 5, instal...

Embodiment 3

[0045] see figure 1 , a method for removing welding slag and welding tumors on the inner wall of steel pipes, the specific steps are as follows:

[0046] 1. Detect the inner diameter of the pipeline 1. According to the inner diameter of the pipeline 1, process the dynamic seal support component 5. The dynamic seal support component 5 is prefabricated with polyurethane material with good elasticity and good wear resistance. The shape of the dynamic seal support component 5 is the sealing performance. Good rubber disc or rubber bowl shape, the diameter interference of the dynamic seal support component 5 is 1.5-5% of the inner diameter of the pipe 1; processing and filing the elastic component 6, the filing elastic component 6 is made of bronze-plated material with good elasticity, Elasticity 30-50kg; processing toothed arc surface grinder 4, toothed arc surface grinder 4 is made of hard and wear-resistant diamond material, toothed arc surface grinder 4 grinds the radius of curv...

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Abstract

The invention discloses a method for removing welding slag and welding tumors on the inner wall of a steel pipeline. The specific steps include: 1. Detecting the inner diameter of the pipeline; 2. Processing a dynamic sealing support component according to the internal diameter of the pipeline; Process the tooth-shaped curved surface and sharpen the knife; assemble the tumor removal device; 3. Make and install the tumor removal launcher according to the inner diameter of the pipeline; 4. The tumor removal device is launched into the pipeline to be removed by the tumor removal launcher; When the tumor removal device runs on the pipe section other than the weld in the pipeline, the toothed arc surface grinder runs close to the inner wall of the pipeline; File and grind the welding nodules to completely smooth the welding nodules. The method for removing the welding slag and welding tumor on the inner wall of the steel pipeline can safely, thoroughly and quickly remove the welding slag and welding tumor on the inner wall of the steel pipeline, and has high working efficiency.

Description

technical field [0001] The invention relates to a technology for removing welding slag and welding nodules on the inner wall of a steel pipeline, in particular to a method for removing welding slag and welding nodules on the inner wall of a steel pipeline. Background technique [0002] The use of steel pipes to transport fluids is the safest, most convenient and cheapest method of transportation. According to the type, concentration, temperature, flow rate, pressure, etc. of the medium transported by metal pipes, it will have different degrees of damage to the inner wall of the steel pipe. Corrosion, wear and scaling have greatly limited the application of steel pipes. Reasonable selection of anti-corrosion materials and construction technology in the pipeline is an effective method to prolong the service life of the pipeline, reduce investment and prolong the production cycle. As high temperature, high pressure and strong corrosive media are more and more commonly used for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B9/055B23K37/08
CPCB23K37/08
Inventor 马富君马付林刘智军李景全林涛
Owner 马富君