Steel rail capable of preventing subway stray current corrosion, paint for coating said steel rail and preparation method

Abstract

This invention involves the chemical engineering and the surface processing technique fields .The invention provided a kind of steel rail that keeps subway from fan to flow to decay, the strength of insulating is 45.0V / mm-103.4V / mm; The specific resistance is 6.7*1013omega .cm- 5.8*1015omega .cm. The steel rail is made through putting on insulate coating and antisepsis eclipse coating outside it. The invention of steal rail's produce craft is simple and operating is simple too, The steal rail's surface layer from producing can cut off the leak that lead electric current lies in the subway circuit ,resolving the problem of dying decay, having a good market foreground.

Description

technical field

[0001] The invention belongs to the technical field of chemical industry and surface treatment, in particular to a steel rail for preventing the corrosion of subway turbulence, and a paint used for coating the steel rail. Background technique

[0002] At present, the subway project is developing rapidly as an important means of transportation. The direct current drawn by the subway locomotive flows along the circuit formed by the overhead wires, the locomotive carriages and wheels, and the track laid on the ground. During the operation of the subway, part of the current will leak from the track to the track bed and the surrounding soil, thereby causing the metal buried underground. Electrochemical corrosion of steel bars in pipelines and reinforced concrete main structures occurs. This leakage current is called stray current, also known as stray current in subway engineering. The corrosion of buried metal objects caused by this stray current is called stray c...