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Anti-corrosion coating for power grid overhead conductor

A technology of overhead wires and anti-corrosion coatings, applied in anti-corrosion coatings, coatings, etc., can solve the problems of reduced electrical conductivity and restrictions on wide application, and achieve the effects of long service life, good economic benefits, and good anti-corrosion and anti-rust effects

Inactive Publication Date: 2015-11-25
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Dacromet technology has incomparable advantages in anticorrosion with other traditional anticorrosion processes, but the overhead wires of the power grid play a conductive role, and their conductivity will be reduced after being coated with Dacromet anticorrosion technology, which restricts the use of this technology. Wide application in the field of power grid

Method used

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  • Anti-corrosion coating for power grid overhead conductor

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Embodiment Construction

[0018] The specific embodiment of the present invention is as figure 1 As shown, the following is a detailed description of the new anti-corrosion paint coating process for power grid overhead wires of the present invention.

[0019] The technological process of the anti-corrosion coating coating of the new type power grid overhead wire in the embodiment of the present invention is as follows:

[0020] Coating liquid configuration--degreasing and degreasing of coating base materials-mechanical shot blasting to remove scale-coating-preheating and baking-sintering and curing-cooling-coating-preheating and baking-sintering and curing-cooling-inspection.

[0021] (1) Preparation of coating solution

[0022] The preparation of the coating solution is different from the general multi-component coatings, which can be mixed and dispersed in proportion. The coating mixing and preparation process is a redox reaction process, so in the coating mixing and dispersing process, a suitable t...

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Abstract

The invention provides an anti-corrosion coating for a power grid overhead conductor. The coating is obtained by adding nanometer-scale fine graphite powder to a prepared Dacromet solution according to a certain proportion, conducting ultrasonic oscillation so that the nanometer-scale fine graphite powder can be evenly dispersed in the liquid, and then conducting coating and solidifying. The coating comprises, by weight, 12% of graphite powder, 35% of sheet zinc powder, 8% of sheet aluminum powder, 7% of chromic anhydride, 30% of ethanediol, 5% of dispersing agents, 0.1% of flexibilizer, 0.9% of thickening agents, and 2% of composite reducing agents and water. Through the invention improvement of the coating formula and addition of the nanometer-scale fine graphite powder, tests prove that the novel coating achieves the aim of not reducing the conductivity of coating materials while not influencing the anti-corrosion and anti-rusting effect. The anti-corrosion coating is suitable for corrosion prevention and rust prevention of the power grid overhead conductor.

Description

technical field [0001] The invention relates to an anti-corrosion coating for an overhead wire of a power grid, which belongs to the technical field of chemical coatings. Background technique [0002] With the rapid development of my country's industry and the continuous improvement of people's living standards, electric energy has become an important guarantee for promoting economic development. Develop and construct ultra-high voltage and ultra-high voltage substations. The overhead wires of the power grid are directly exposed to the atmosphere. Due to environmental pollution and other factors, harmful corrosive media, acid rain, dust residues and other substances in the air have long-term corrosion and corrosion on the overhead wires of the power grid, resulting in serious corrosion of the wires, and even harmful cracks that lead to breakage. Serious Some will cause all power plants and substations to stop running, and some will even develop into serious system accide...

Claims

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Application Information

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IPC IPC(8): C09D5/10C09D7/12
Inventor 涂湛林福海
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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