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All-chemical anticorrosive treatment method for high-tension transmission line iron tower

A high-voltage transmission line, chemical anti-corrosion technology, applied in the field of transmission tower anti-corrosion, can solve the problems of iron tower construction difficulties, etc., achieve the effect of good effect, applicable process operation and reasonable formula

Inactive Publication Date: 2015-04-29
STATE GRID CORP OF CHINA +1
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  • Description
  • Claims
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Problems solved by technology

However, this kind of technology is more beneficial to large-area metal construction, but it will have certain difficulties for the construction of iron towers with angle steel structures.

Method used

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  • All-chemical anticorrosive treatment method for high-tension transmission line iron tower
  • All-chemical anticorrosive treatment method for high-tension transmission line iron tower
  • All-chemical anticorrosive treatment method for high-tension transmission line iron tower

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Embodiment Construction

[0033] The implementation of the present invention is described in further detail below. The following examples are only descriptive and not restrictive, and the protection scope of the present invention cannot be limited by this.

[0034] A full chemical anticorrosive treatment method for high-voltage transmission line towers, the steps of the method include:

[0035] (1) Use surfactants to remove oil stains on the metal surface; for metal parts to be treated, only the oil stains and rust on the metal surface can be firmly combined with the metal after the paint layer is removed. Pickling and rust removal can remove steel rust. But when there is oil on the metal surface, it will isolate the pickling solution from contact with rust and fail to achieve the purpose of pickling and rust removal. Therefore, if there is grease on the metal surface, the oil should be removed first. In the past, the use of organic solvents or lye for degreasing was unsafe, inconvenient and polluted the en...

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Abstract

The invention relates to an all-chemical anticorrosive treatment method for a high-tension transmission line iron tower. The method comprises the following steps: (1) removing metal surface oil stains by using a surfactant; (2) removing rust from the lower part of the high-tension transmission line iron tower by using chlorohydric acid pickling solution; (3) removing rust from the upper part of the high-tension transmission line iron tower by using pickling passivation paste; (4) brushing the iron and steel surface with alkaline oxidation liquid, and performing chemical conversion treatment on the iron and steel surface; (5) brushing the iron and steel surface subjected to chemical conversion treatment with epoxy zinc rich primer; (6) brushing the iron and steel surface brushed with the epoxy zinc rich primer by using epoxy mica iron intermediate coat; and (7) brushing the iron and steel surface brushed with the epoxy mica iron intermediate coat by using epoxy resin finish. According to the method disclosed by the invention, each formula ingredient is reasonable, the process operation is applicable, the working efficiency is improved, and the effect is good.

Description

Technical field [0001] The invention belongs to the technical field of anti-corrosion of transmission towers, in particular to a full chemical anti-corrosion treatment method for high-voltage transmission line towers. Background technique [0002] Coatings have a long history of anti-corrosion. Various methods are used to cover corrosion-resistant materials on the protected iron tower substrate so that it does not directly contact the corrosive medium and avoid corrosion. Combined with the electrochemical theory of metals, coatings The anti-corrosion effect of the anti-corrosion mainly includes the following: (1) Shielding effect, anti-corrosion coating can prevent or inhibit the penetration of water, oxygen and ions through the paint film to isolate the corrosive medium from the metal, thereby preventing the formation of corrosive batteries or inhibiting its activities. (2) The resistive effect of the paint film. In the corrosion battery circuit, people cannot prevent the electr...

Claims

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Application Information

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IPC IPC(8): C23G1/08C23G1/06C23C22/62C23F11/00
Inventor 郭军科于金山苏展卢立秋郝春艳赵鹏邵林刘鸿芳
Owner STATE GRID CORP OF CHINA
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