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Field repair method of transmission tower zinc coating

A technology for on-site repairing and transmission towers, which is applied to coatings, devices for coating liquid on the surface, and surface pretreatment, etc. It can solve problems such as zinc layer peeling off and poor mechanical strength at the zinc layer, and achieve extended service life and improved Corrosion resistance, performance improvement effect

Inactive Publication Date: 2020-01-10
江苏荣辉电力设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for on-site repairing of the galvanized layer of the transmission iron tower, which solves the problem that the repairing method of the galvanized layer in the prior art is relatively simple, and the repaired zinc layer is prone to fall off, and the repaired The problem of poor mechanical strength at the final zinc layer

Method used

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Examples

Experimental program
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Embodiment 1

[0025] Embodiments of the present invention provide a method for on-site repairing of the galvanized layer of a power transmission tower, comprising the following repairing steps:

[0026] S1. Surface pretreatment: First check whether there is oil stain on the surface of the zinc supplement. If there is oil stain, spray the surface with a detergent. After 1-2 minutes, wipe the surface of the zinc supplement with a wet cloth, and then Spray deionized water on the surface of the zinc supplement, and wipe the water dry with a rag dipped in absolute ethanol;

[0027] S2. Oxide layer treatment: After the surface of the zinc supplement is dry, use sandpaper to polish the surface to remove the rust on the surface of the zinc supplement. When sanding with sandpaper, keep the grinding direction in the same direction and in a straight line to avoid no rust in a small area. Regularly grind back and forth repeatedly, then wipe off the residual iron filings on the surface of the zinc suppl...

Embodiment 2

[0035] Embodiments of the present invention provide a method for on-site repairing of the galvanized layer of a power transmission tower, comprising the following repairing steps:

[0036] S1. Surface pretreatment: First check whether there is oil stain on the surface of the zinc supplement. If there is oil stain, spray the surface with a detergent. After 1-2 minutes, wipe the surface of the zinc supplement with a wet cloth, and then Spray deionized water on the surface of the zinc supplement, and wipe the water dry with a rag dipped in absolute ethanol;

[0037] S2. Oxide layer treatment: After the surface of the zinc supplement is dry, use sandpaper to polish the surface to remove the rust on the surface of the zinc supplement. When sanding with sandpaper, keep the grinding direction in the same direction and in a straight line to avoid no rust in a small area. Regularly grind back and forth repeatedly, then wipe off the residual iron filings on the surface of the zinc suppl...

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Abstract

The invention provides a field repair method of a transmission tower zinc coating, and relates to the technical field of tower zinc coating repair. The field repair method of the transmission tower zinc coating comprises the following repair steps of S1, surface pretreatment, wherein firstly, whether oil stains exist on the surface of the zinc supplementing position or not is inspected, and if theoil stains exist, a cleaning agent is used for spraying the surface of the zinc supplementing position; S2, oxidation layer treatment, wherein after the surface of the zinc supplementing position isdried, abrasive paper is used for grinding the surface, iron rust on the surface of the zinc supplementing position is removed, and a HCl solution is sprayed to the surface of the zinc supplementing position; S3, sand blasting treatment, wherein a pressing-in type dry sand blasting machine is used for spraying spray materials to the surface of the zinc supplementing position at the high speed; andS4, zinc supplementing treatment, wherein a zinc-rich coating is used for spraying the surface of the zinc supplementing position. Through surface pretreatment, oxidation layer treatment, sand blasting treatment and zinc supplementing treatment on a transmission tower part, the property of the surface of the zinc supplementing position can be effectively improved, the zinc coating can be tightlyattached to the surface of the component, and the corrosion prevention property of the transmission tower part can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of galvanized layer repair, in particular to an on-site repair method for a galvanized layer of a power transmission tower. Background technique [0002] The transmission tower is the supporting point of the overhead line. If one circuit is erected on the transmission tower, it is a single-circuit transmission tower, and if two circuits are erected on the transmission tower, it is a double-circuit transmission tower. A single circuit means that one load has one power supply. circuit; double circuit refers to a circuit with two power supplies for a load. Generally, enterprises that require high power supply reliability, or important substations in regions, use double circuit power supply, which can protect one of the power supplies from power failure for some reason, and the other One power supply can continue to supply power, but for general small and medium users who do not require high power supply reliabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D7/14B05D3/00B05D3/04B05D3/10B05D3/12B05D7/00
CPCB05D3/002B05D3/0413B05D3/102B05D3/12B05D5/005B05D7/14B05D7/51B05D7/534B05D2350/38
Inventor 李胜利韩彬
Owner 江苏荣辉电力设备制造有限公司
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