F-shaped steel rail with wear-resistant layer

Abstract

The invention discloses an F-shaped steel rail with a wear-resistant layer. The F-shaped steel rail with the wear-resistant layer is used for a rail row of a maglev train and comprises a steel rail body, wherein the steel rail body comprises a first protruding part, a second protruding part and a connecting part used for being connected with a sleeper, the first protruding part is far away from the connecting part than the second protruding part, and the side wall of the first protruding part is provided with the wear-resistant layer. Due to the fact that the wear-resistant layer is arranged in places with serious wear, such as the braking surface, the wear-resistant performance of the F-shaped steel rail can be greatly improved, the maintenance period and the service life of the steel rail are prolonged, the F-shaped steel rail is more wear-resistant, and the maintenance engineering quantity and cost are reduced.

Description

technical field [0001] The invention relates to the technical field of train rails, in particular to an F-shaped rail with a wear-resistant layer. Background technique [0002] The track line of the maglev train is paved by rail rows, and each rail row is composed of sleepers and F-shaped steel rails. The magnetic pole surface of the F-shaped steel rail and the vehicle electromagnet generate a magnetic field, so that the vehicle is suspended on the track. Since alloy elements such as manganese and nickel will affect the magnetic saturation strength, and will also intensify the residual magnetism phenomenon, affecting the suspension force and suspension control of the vehicle, in order to meet the suspension requirements of the vehicle, the material of the F-shaped rail must be made of high iron content (such as Q235-B), which makes the hardness and wear resistance of F-shaped rails general, but the outstanding magnetic saturation strength of its materials makes it an irrepl...

AI Technical Summary

Problems solved by technology

Due to the need to apply mechanical brakes to stop when the train enters the station, the braking surface of the F-shaped rail in the station section is worn out. If it exceeds the allowable range, it will affect the suspension performance and braking of the vehicle, thereby affecting the safe operation of the vehicle.

[0004] After the wear of the F-shaped rail exceeds the limit, it needs to be repaired or replaced. Due to the heavy parts and high installation accuracy requirements, special tooling and equipment are required to complete it. The amount and cost of line maintenance in the platform section are higher than other sections.

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