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An anti-corrosion structure of embedded track rail and its preparation method

An embedded rail technology, applied to rails, anti-corrosion coatings, roads, etc., to solve corrosion problems and facilitate construction

Active Publication Date: 2017-05-03
CRRC QINGDAO SIFANG ROLLING STOCK RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art, seek to design a buried track rail anti-corrosion structure and its preparation method, solve the long-term anti-corrosion problem of the buried track rail in the operation process, and improve the service life of the track

Method used

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  • An anti-corrosion structure of embedded track rail and its preparation method
  • An anti-corrosion structure of embedded track rail and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The embedded rail anticorrosion structure of this embodiment includes a rail 1, an anticorrosion coating 2 and a polyurethane protective layer 3, the outer layer of the rail 1 is coated with an anticorrosion coating 2, and the outer side of the anticorrosion coating 2 is coated with polyurethane The protective layer 3 ; the anti-corrosion coating 2 and the polyurethane protective layer 3 wrap the two sides and the bottom surface of the steel rail 1 . The anti-corrosion coating is a special epoxy anti-corrosion coating with rust, which contains corrosion inhibitors and rust conversion agents;

[0028] The polyurethane protective layer is made of two-component polyurethane grouting material;

[0029] The two-component polyurethane grouting material includes A component and B component, and the A component includes by weight: polyether polyol: 70 parts, chain extender: 7 parts, antioxidant: 1 part, catalyst : 0.02 part, leveling agent: 0.5 part, color paste: 0.1 part; the...

Embodiment 2

[0036] The embedded rail anticorrosion structure of this embodiment includes a rail 1, an anticorrosion coating 2 and a polyurethane protective layer 3, the outer layer of the rail 1 is coated with an anticorrosion coating 2, and the outer side of the anticorrosion coating 2 is coated with polyurethane The protective layer 3 ; the anti-corrosion coating 2 and the polyurethane protective layer 3 wrap the two sides and the bottom surface of the steel rail 1 . The anti-corrosion coating is an epoxy special anti-corrosion coating with rust, which contains corrosion inhibitors and rust conversion agents;

[0037] The polyurethane protective layer is made of two-component polyurethane grouting material;

[0038] The thickness of the anti-corrosion coating is 500 microns;

[0039] The polyurethane protective layer is made of two-component polyurethane grouting material; the two-component polyurethane grouting material includes component A and component B, and the component A include...

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Abstract

The invention belongs to the technical field of railway traffic equipment and relates to an embedded type track steel rail anti-corrosion structure which is resistant to corrosion for a long time in the running process and a preparation method thereof. The embedded type track steel rail anti-corrosion structure comprises a steel rail, an anti-corrosion coating and a polyurethane protective layer. The outer layer of the steel rail is coated with the anti-corrosion coating. The outer side of the anti-corrosion coating is coated with the polyurethane protective layer. Two side faces and the bottom face of the steel rail are wrapped by the anti-corrosion coating and the polyurethane protective layer. The polyurethane protective layer is prepared from a double-component polyurethane grouting material. Construction is convenient and easy. The rusting problem of an embedded steel rail can be effectively solved. The effective service life of an anti-corrosion material is as long as 30 years, the overall protective time can be 20 years or above, the service life of the steel rail is prolonged, and maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of rail transit equipment, and in particular relates to an embedded track rail anticorrosion structure capable of long-term anticorrosion during operation and a preparation method thereof. Background technique [0002] Modern tram is a low-capacity rail transit system that integrates the two characteristics of rail transit and municipal roads and undertakes public transportation functions. It has the advantages of safety, environmental protection, comfort, speed, and low cost, and can undertake the backbone traffic such as subways. Auxiliary functions such as supplement, extension, and transition have developed rapidly in China in recent years. [0003] There are many types of tram track structures, generally speaking, they are mainly divided into buried and non-buried tracks. The non-buried track structure is similar to the ordinary railway track structure, enjoys independent right of way, and is convenien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B19/00C09D5/08C09D163/00C09D175/08
CPCC09D5/08C09D163/00C09D175/08E01B19/00
Inventor 姚小强张波陈焕江杜尚姜凌程文露郑辉王黎明
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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