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Pipe-jacking corrosion-resistant coating and coating method

A corrosion-resistant coating and pipe jacking technology, which is applied in the direction of anti-corrosion coatings, coatings, and devices for coating liquid on the surface, which can solve the problems of reducing the service life of pipe jacking, the impact of mechanical strength of pipe jacking, and the inner wall of pipe jacking being prone to corrosion, etc. problems, to improve performance and enhance stability

Inactive Publication Date: 2019-02-01
成都金玉雄辉建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problem that the inner wall of the pipe jacking is easily corroded by liquid immersion during the use of the existing pipe jacking, which affects the mechanical strength of the entire pipe jacking and reduces the service life of the pipe jacking, and provides a corrosion-resistant coating for pipe jacking and a coating method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A coating method for corrosion-resistant paint for pipe jacking, comprising the following steps:

[0025] The first step is the treatment of the base surface of the pipe jacking. The base surface of the pipe jacking to be coated is pre-heated, and the surface debris and powder precipitated by heating are scraped off.

[0026] In the second step, sandblasting, the base surface of the jacking pipe to be coated is smoothed by sandblasting, and the surface dust is removed again.

[0027] The third step is to apply the anti-corrosion paint. The uniformly mixed anti-corrosion paint is sprayed to make the powder particles uniformly adsorbed on the smooth surface of the pipe jacking that has been sandblasted.

[0028] The fourth step is solidification and cooling. The pipe jacking coated with the anti-corrosion coating is heated and solidified for 5 minutes. After solidification, it is allowed to stand and cool to room temperature.

[0029] During use, heating is carried out b...

Embodiment 2

[0031] A coating method for corrosion-resistant paint for pipe jacking, comprising the following steps:

[0032] The first step is the treatment of the base surface of the pipe jacking. The base surface of the pipe jacking to be coated is pre-heated, and the surface debris and powder precipitated by heating are scraped off.

[0033] In the second step, sandblasting, the base surface of the jacking pipe to be coated is smoothed by sandblasting, and the surface dust is removed again.

[0034] The third step is to apply the anti-corrosion coating. The uniformly mixed anti-corrosion coating is sprayed to make the powder particles uniformly adsorbed on the smooth surface of the pipe jacking after sandblasting. The anti-corrosion coating includes magnetized calcium, bentonite, titanium dioxide, benzene, etc. base silicone oil, sodium petroleum sulfate, alkylphenol ethoxylates, triethylene glycol, sulfurized olefins and water.

[0035] The fourth step is solidification and cooling. ...

Embodiment 3

[0038] A coating method for corrosion-resistant paint for pipe jacking, comprising the following steps:

[0039] The first step is the treatment of the base surface of the pipe jacking. The base surface of the pipe jacking to be coated is pre-heated, and the surface debris and powder precipitated by heating are scraped off.

[0040] In the second step, sandblasting, the base surface of the jacking pipe to be coated is smoothed by sandblasting, and the surface dust is removed again.

[0041] The third step is to apply the anti-corrosion coating. The uniformly mixed anti-corrosion coating is sprayed to make the powder particles uniformly adsorbed on the smooth base surface of the pipe jacking after sandblasting. The anti-corrosion coating includes 4 parts of magnetized calcium and 10 parts of bentonite. 1 part, 1 part of titanium dioxide, 2 parts of phenyl silicone oil, 10 parts of petroleum sodium sulfate, 10 parts of alkylphenol polyoxyethylene ether, 5 parts of triethylene gl...

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PUM

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Abstract

The invention relates to the field of corrosion protection of a pipe-jacking, in particular to a pipe-jacking corrosion-resistant coating and a coating method thereof. The coating method comprises thefollowing steps: the surface of the pipe-jacking is treated, a base surface of the pipe-jacking to-be-coated is preheated, the surface impurities and powders precipitated by heating are scraped off,then sand-blast treating is carried, the base surface of the pipe-jacking to-be-coated is smoothed by sand blasting, the surface dust is removed again, then the corrosion-resistant coating is applied,and the uniformly mixed corrosion-resistant coating is uniformly adsorbed to the smooth base surface of the pipe-jacking through sand-blast treating, finally the material is cured and cooled, the pipe-jacking coated by the corrosion-resistant coating is heated and cured, wherein the curing time is 5-10 min, and the material is subjected to standing cooling after curing to room temperature. The pipe-jacking corrosion-resistant coating solves the problem that the inner pipe of the pipe-jacking is easily corroded by the liquid immersion, which causes the mechanical strength of the entire pipe-jacking to be affected and the service life of the pipe jack is reduced.

Description

technical field [0001] The invention relates to the field of pipe jacking corrosion resistance, in particular to a pipe jacking corrosion resistance coating and a coating method. Background technique [0002] Pipe jacking construction is a non-excavation construction method, and it is a pipeline burying construction technology that does not excavate or excavates less. Pipe jacking construction is to use the jacking force generated by the jacking equipment in the working pit to overcome the friction between the pipeline and the surrounding soil, push the pipeline into the soil according to the designed slope, and transport the earth away. [0003] During the pipe jacking process, the inner wall of the pipe jacking is prone to corrosion due to liquid immersion, which affects the mechanical strength of the entire pipe jacking and reduces the service life of the pipe jacking. Contents of the invention [0004] The invention aims at the problem that the inner wall of the pipe ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08C09D4/06C09D7/61C09D7/63B05D5/00B05D3/00B05D7/22B05D7/24
CPCC09D5/08B05D3/002B05D5/00B05D7/222B05D7/24C09D4/06C09D7/61C09D7/63
Inventor 沈传雄
Owner 成都金玉雄辉建筑工程有限公司
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