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Technique for jet printing long term anti-corrosive paint on cable bridge rack

A technology of cable tray and process method, which is applied in the direction of pipeline anti-corrosion/rust protection, damage protection, pipe/pipe joint/pipe fitting, etc. Manpower saving effect

Inactive Publication Date: 2008-01-02
TIANJIN ZHENDONG PAINTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the acid ions left on the surface of the steel structure cannot be completely removed, the coating of the bridge will corrode and peel off from the inside to the outside during use, which will not achieve the effect of long-term use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0006] Example: A process for spraying long-term anti-corrosion coatings on cable bridges. First, sandblasting is used to remove oil and rust on the surface of steel structure cable bridges. After drying, pass the aluminum wire through the oxyacetylene spraying method, melt the aluminum wire, and spray evenly on the metal surface of the bridge frame with a thickness of 50-60 microns. The surface layer is sprayed layer by layer on the metal surface of the bridge that has been dried and sprayed with aluminum. The bottom resin is sprayed twice, the middle layer is sprayed once, and the surface layer is sprayed twice. The time interval between each coating is 4-5 hours. The standard film thickness is 30-35 microns, and the total coating thickness is 150-180 microns. After spraying, store the cable tray in a ventilated and dry place to let it cure naturally. The complete curing time is one week.

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Abstract

The invention discloses a method to spray long period anticorrosion paint for cable crane span structure, which is characterized by the following: basing on original cable crane span structure spraying paint craft; spraying fluorocarbon resin substratum, mesosphere and surface course. This invention possesses the advantages of high brightness, high strength and long durability.

Description

technical field [0001] The invention relates to a process method for spraying a long-term anti-corrosion coating on a cable bridge. Background technique [0002] At present, the surface of the cable tray is usually pickled first, then sprayed or electro-galvanized or hot-dip galvanized. However, since the acid ions left on the surface of the steel structure cannot be completely removed, the coating of the bridge will corrode from the inside to the outside during use and peel off, which cannot achieve the effect of long-term use. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned defects and provide a process for spraying long-term anti-corrosion coatings on cable trays. [0004] The technical solution of the present invention is: a process for spraying long-term anti-corrosion coatings on cable bridges. After drying, pass the aluminum wire through the oxyacetylene spraying method, melt the aluminum wire, and spray ev...

Claims

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Application Information

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IPC IPC(8): F16L58/18
Inventor 张云波
Owner TIANJIN ZHENDONG PAINTS CO LTD
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