Insulated rail with nano-ceramic coating

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...

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

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