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A method for spraying anti-corrosion paint on the inner surface of naval seawater pipelines

A technology for anti-corrosion coatings and seawater pipes, applied in anti-corrosion coatings, devices for coating liquids on surfaces, special surfaces, etc. and good dispersion

Active Publication Date: 2021-10-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of seawater corrosion, microcracks are often hidden inside the coating
Once defects occur inside the coating, discontinuities will occur on the surface, which will aggravate the damage of the coating and greatly shorten the service life of the coating

Method used

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  • A method for spraying anti-corrosion paint on the inner surface of naval seawater pipelines
  • A method for spraying anti-corrosion paint on the inner surface of naval seawater pipelines
  • A method for spraying anti-corrosion paint on the inner surface of naval seawater pipelines

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Experimental program
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Effect test

Embodiment 1

[0037]First melt the anticorrosion coating powder into a liquid, and then spray it to the inner surface of the seawater pipeline; the anticorrosion coating powder is obtained by mixing epoxy resin coating and self-repairing microcapsules; the epoxy resin coating and self-repairing The weight ratio of the microcapsules is 100:3; the self-healing microcapsules include a core material and a wall material wrapping the core material, the core material is tung oil, and the wall material is sodium alginate solution and calcium chloride Calcium alginate, the reaction product of the solution, was mixed with sodium alginate solution, tung oil and OP-10, then placed in a tissue masher and stirred at a speed of 6000 r / min for 5 minutes to form oil-in-water emulsion droplets, and left to defoam After obtaining the emulsion; under the pressure of 0.43MPa, the emulsion is dripped into the calcium chloride solution, and the microcapsules are filtered through a 400-mesh paper funnel, and after ...

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Abstract

The invention provides a method for spraying anti-corrosion coatings on the inner surface of naval seawater pipelines. The spraying equipment includes a coating liquefaction device, a high-pressure pump connected to the pipeline of the coating liquefaction device, a track fixed by a supporting structure, and two rails installed on the track. Traveling device, hose bracket and hose; one of the traveling devices is connected with a hose bracket through an L-shaped connecting rod, and a laser curing device is installed on the other traveling device, and the laser curing device is located at the center of the hose bracket. One end is connected to the outlet of the high-pressure pump, the middle part passes through the through hole of the connecting block fixedly connected to the bottom of the track, and the other end passes through the through hole of the hose bracket and is wound around the outer ring surface of the hose bracket. A threaded hole is provided on the pipe wall at one end of the outer ring surface of the pipe support, and a funnel-shaped spraying nozzle is connected in the threaded hole, and the outer surface of the round pipe at the lower end of the spraying nozzle is threaded. Avoid the phenomenon of coating flow caused by uneven coating, so as to achieve the purpose of optimizing the spraying effect.

Description

technical field [0001] The invention belongs to the field of coatings and coating equipment, and in particular relates to a method for spraying anti-corrosion coatings on the inner surface of naval seawater pipelines. Background technique [0002] Coatings with anti-corrosion, waterproof and protective functions are very necessary materials in engineering construction. Especially for the protection of pipelines such as underground, road and bridge, tunnel engineering, and ship seawater pipelines, a protective layer needs to be coated and it is hoped that it will be cured soon. [0003] At present, the construction methods of coatings include various methods such as brush coating, spray coating, roller coating and curtain coating. The brushing method is the most widely used brushing method in construction at present. It is simple in construction and easy to operate, but it requires pure manual operation during construction, which is labor-intensive, does great harm to worker...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D5/00B05D7/22B05D7/24B05D3/06B05B16/20B05B9/04B05B13/06C09D163/02C09D5/08C09D7/65
CPCB05B9/0423B05B13/0627B05D3/06B05D5/00B05D7/225B05D7/24B05D2504/00B05B16/20C09D5/08C09D163/00C09D7/65C09D7/70C08L5/04C08L91/005
Inventor 孙霁宇李雯湛玉超田丽梅赵杰
Owner JILIN UNIV
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