Railway rail surface laser-cladding rust-proof conducting method and apparatus for implementing method

A laser cladding and rail technology, applied in the directions of roads, tracks, laying tracks, etc., can solve problems such as signal false alarms, and achieve the effect of small heat affected zone, high heat conversion efficiency, and improved construction efficiency.

Pending Publication Date: 2017-11-24
山东中科中美激光科技有限公司
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Problems solved by technology

[0004] The invention provides a laser cladding anti-rust conductive method and equipment for railway rail surface. The method uses a high-energy laser to clad specific metal powder (nickel) on th

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  • Railway rail surface laser-cladding rust-proof conducting method and apparatus for implementing method
  • Railway rail surface laser-cladding rust-proof conducting method and apparatus for implementing method
  • Railway rail surface laser-cladding rust-proof conducting method and apparatus for implementing method

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] This embodiment provides a laser cladding anti-rust and conductive method for railway rail rail surface. A high-energy laser is used to clad specific metal powder (nickel) on the surface of the rail to form an S-shaped conductive metal wire. The S wire has good electrical conductivity. , No rust characteristics. In other embodiments, other specific shapes of conductive metal lines, such as non-linear conductive metal lines such as Z-shape, can also be formed.

[0043] The method mainly includes the steps of laser rust removal and laser cladding;

[0044] (1) Laser derusting. The laser irradiates the rail surface of rail 1 along the S path. The irradiation width is 2-5mm. When it is destroyed, an S-shaped path S1 showing the true color of the rail is formed on the surface of rail 1, see image 3 .

[0045] (2) Laser cladding. After th...

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Abstract

The invention relates to a railway rail surface laser-cladding rust-proof conducting method and an apparatus for implementing the method. The method is implemented by: subjecting rail surface to irradiation rust removal along a set path by laser; controlling a laser spot and a metal powder feeder to move synchronously along the rust removal path of step I, and controlling the metal powder feeder to apply metal powder evenly to the rust removal path on the rail surface; irradiating the metal powder with the laser spot to form a rust-proof conducting metal wire on the surface of the rail surface. The apparatus comprises a vehicle body, and a laser unit, a metal powder feeder and an electrical control unit which are arranged on the vehicle body. Rail surface rust removal is performed by means of laser washing; compared with mechanical or chemical rust removal methods, the method of the invention is high in efficiency and convenience and free of pollution, and laser rust removal has little influence on the surface of a rail base.

Description

technical field [0001] The invention relates to a laser cladding anti-rust and conductive method for railway rail surface and equipment for realizing the method. Background technique [0002] In order to check the state of the rail line occupied by the train, it is necessary to use a closed-circuit track circuit, through which the automatic signal judges the real-time state of the rail. When the train arrives above the rails in this area, a loop is formed between the two rails, and the section of the area is judged to be occupied by the signal light display. Otherwise, when there is no train above the rails, the circuit is broken between the two rails, and the signal feedback determines that the rails in this section are not occupied. Other trains are allowed to enter. Steel rails are an important part of closed-circuit track circuits. However, in practice, steel rails are laid in the open air and are affected by rain, sunlight, and temperature differences between day and n...

Claims

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Application Information

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IPC IPC(8): E01B31/18
CPCE01B31/18
Inventor 段开椋韩媛马宝田
Owner 山东中科中美激光科技有限公司
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