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Insulated rail with nano-ceramic coating

A technology of nano-ceramic and steel rail, applied in the field of rail transit, can solve the stray problems of the rail system, and achieve the effect of eliminating stray current, ensuring the insulation performance of the rail, operating efficiency and safety, and simplifying the laying process of the rail.

Inactive Publication Date: 2017-07-11
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a nano-ceramic coating insulated steel rail with low cost and good performance that can fundamentally solve the problem of stray current in the track system in order to overcome the defects of the above-mentioned prior art.
Nano-ceramic insulating coating is a permanent combination of nano-ceramic insulating coating and rail surface

Method used

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  • Insulated rail with nano-ceramic coating
  • Insulated rail with nano-ceramic coating
  • Insulated rail with nano-ceramic coating

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as Figure 1a Shown, a kind of nano-ceramic insulating steel rail is coated with nano-ceramic insulating coating 2 on the surface of general track rail 1; Nano-ceramic insulating coating 2 is evenly covered on the surface of rail 1; The surface of rail 1 includes rail top surface 3 and other rail outer surfaces 4, the rail outer surface 4 includes the upper and lower sides of the rail bottom, the two sides of the rail waist, and the upper and lower sides of the rail head along the longitudinal direction of the rail; the top surface of the rail 3 is the rolling contact surface of the wheel and the adjacent In the 50mm wide area of ​​the upper surface, the top surface of the rail 3 is not regarded as the must-coated area, that is, the non-coated area, and the non-coated area of ​​the rail 1 is used to install tooling during coating to support or hang the rail; nano-ceramic insulating coating The material of 2 adopts two-component alcohol system nano-ceramic coating mo...

Embodiment 2

[0059] Such as Figure 1b As shown, a grooved nano-ceramic insulating steel rail is coated with a nano-ceramic insulating coating 2 on the surface of the grooved track rail 1; the surface of the rail 1 includes a rail top surface 3 and other rail outer surfaces 4, and the nano-ceramic insulating coating 2 is evenly covered on the outer surface 4 of the rail; the outer surface 4 of the rail includes the upper and lower sides and sides of the rail bottom, the two sides of the rail waist, and the upper and lower sides of the rail head along the longitudinal direction of the rail; but the top surface 3 of the rail is the rolling contact surface of the wheel And the 50mm wide area of ​​the adjacent upper surface is not regarded as the must-coated area, that is, the non-coated area. The non-coated area of ​​rail 1 is used to install tooling during coating to support or hang the rail; nano-ceramic insulating coating The materials include bonding materials, reinforcing materials, acti...

Embodiment 3

[0068] The coating process of nano-ceramic insulating coating, such as Figure 5a-5d As shown, the rail is supported by special tooling, and the contact surface between the special tooling 16 and the rail 1 does not hinder the coating of the nano-ceramic insulating coating. All the other are with embodiment 1.

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Abstract

The invention relates to an insulated rail with a nano-ceramic coating. The surface of a rail (1) comprises a rail top surface (3) and rest rail outer surfaces (4), wherein the rail top surface (3) refers to the surface in contact with the rolling of wheels and the nearby upper surface part; the rest rail outer surfaces (4) comprise the upper, lower and side surfaces of a rail foot, the two side surfaces of a rail web and the upper, lower and side surface of a rail head along the longitudinal direction of the rail; a nano-ceramic insulated coating (2) is evenly coated on the rest rail outer surfaces (4); and the materials of the nano-ceramic insulated coating (2) comprise an adhesive material, a reinforcing material and an active hardener. Compared with the prior art, the insulated rail with the nano-ceramic coating has the functions of high insulation resistance, corrosion resistance, water resistance, aging resistance, friction resistance, damp and heat resistance, atmospheric aging resistance and strong adhesion; in addition, the insulated rail with the nano-ceramic coating has the advantages of fundamentally eliminating the occurrence of stray currents of a rail system and avoiding the electrochemical corrosion, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of rail transportation, and in particular relates to an insulated steel rail of a track system with ultra-high insulating performance. Background technique [0002] Rail transit such as subways, light rails, trams, new rail transit systems, etc., mostly use DC electric traction systems and use running rails as return lines. Most of the current can flow back to the negative pole of the power supply through the running rail, but a small part leaks from the position where the rail and the ground are poorly insulated into the ballast bed and the surrounding soil, forming a stray current. The existence of stray current will electrochemically corrode the rail itself and the public facilities pipelines and buildings around the track, reducing the service life of the track, buried pipelines and buildings. Especially for the track of the tram relative to the subway and light rail, the track is completely buried unde...

Claims

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Application Information

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IPC IPC(8): E01B5/02
CPCE01B5/02E01B2204/00
Inventor 王安斌钟峻青
Owner SHANGHAI UNIV OF ENG SCI
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