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

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
Comparison scheme
Effect test

Example Embodiment

[0047] Example 1:

[0048] Such as Figure 1a As shown, a nano-ceramic insulating steel rail is coated with a nano-ceramic insulating coating 2 on the surface of a general track rail 1; the nano-ceramic insulating coating 2 is evenly covered on the surface of the rail 1; the surface of the rail 1 includes the top surface of the rail 3 and other rail outer surface 4, the rail outer surface 4 is along the longitudinal direction of the rail, including the upper and lower sides and sides of the rail bottom, the two sides of the rail waist and the upper and lower sides and sides of the rail head; the top surface of the rail 3 is the rolling contact surface of the wheel and adjacent The 50mm wide area of ​​the upper surface part, the top surface of the rail 3 is not required to be coated, that is, the non-coated area. The non-coated area of ​​the rail 1 is used to install tooling during coating to support or hang the rail; nano-ceramic insulation coating The material of 2 adopts two-com...

Example Embodiment

[0058] Example 2:

[0059] Such as Figure 1b As shown, a groove-shaped nano-ceramic insulating steel rail is coated with a nano-ceramic insulating coating 2 on the surface of a groove-shaped track rail 1; the surface of the rail 1 includes the top surface 3 of the rail and the outer surface 4 of other rails, 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 is along the longitudinal direction of the rail, including the upper and lower sides and sides of the rail bottom, the two sides of the rail waist and the upper and lower sides and sides of the rail head; but the top surface of the rail 3 is the rolling contact surface of the wheel The 50mm wide area of ​​the adjacent upper surface is not required to be coated, 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 insulation coating The materials include bond...

Example Embodiment

[0067] Example 3:

[0068] The coating process of nano-ceramic insulation coating, such as Figure 5a-Figure 5d As shown, a special tooling support is used for the steel rail, and the contact surface between the special tooling 16 and the steel rail 1 does not hinder the coating of the nano-ceramic insulating coating. The rest is the same as in Example 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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