Method for repairing steel rail with laser

A technology of laser repair and rail, which is applied in the direction of track, track laying, track maintenance, etc. It can solve the problems of difficult replacement and achieve the effect of simple repair equipment, reduced post-production process, and low repair cost

Active Publication Date: 2012-02-08
吉光半导体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above weight and rail length, it can be seen that, regardless of the impact on traffic order, it is very difficult to replace a rail on a main line in terms of transportation alone.

Method used

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  • Method for repairing steel rail with laser
  • Method for repairing steel rail with laser
  • Method for repairing steel rail with laser

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Experimental program
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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] A kind of method that adopts laser to repair steel rail of the present invention is finished by the following steps:

[0023] Step 1. Set the rail height direction as the Y axis, the rail width direction as the X axis, and the rail length direction as the Z axis;

[0024] Step 2. Scan the track with a CCD camera to collect values ​​in the X and Y directions;

[0025] Step 3. Compare the value in the Y direction collected by the CCD camera in step 2 with the height of the standard rail surface in the computer. If the difference is ≥ 1mm, then it is determined that the point (X, Y) is a damaged part that needs to be repaired. Execute step 4, if the difference is <1mm, it is determined that the point (X, Y) does not need to be repaired, and return to step 2;

[0026] Step 4. Record the height of the standard rail surface as Y=0, and the height differenc...

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Abstract

The invention provides a method for repairing a steel rail with laser, belonging to the semiconductor laser application field. The method is characterized in that the old steel rail with surface defects is rapidly and reliably repaired for reuse without impact on traffic order on the premise of not disassembling the steel rail. The method mainly comprises the following steps: pre-cleaning the steel rail, acquiring and analyzing as well as sorting steel rail information, repairing the steel rail by filling iron powder, performing metallurgical fusion with the laser, and polishing the repair ofthe rail. The device employed in the method has small volume and light weight, thus being capable of being integrated on a rail running locomotive or a car for daily maintenance or rescue and repair of the rail.

Description

technical field [0001] The invention relates to the application of laser technology in modern rail transportation systems, and the rails include rails in transportation systems such as railways, subways, and light rails. Background technique [0002] With the progress of human society, the increase of population flow and cargo transportation has caused more and more pressure on transportation. Rail transit has become the main force in transportation because of its large shipments and fast delivery speed. Rail transit mainly includes rail locomotives such as railways, subways and light rails, and it has developed greatly in China and even the world. [0003] At present, the world’s railways are about 1.37 million kilometers, more than 60% of which are standard gauge (wiki): 86,000 kilometers in China (data from the Ministry of Railways at the end of 2009), 226,000 kilometers in the United States (CIA2007), 27,000 kilometers in Japan (Japan Railway), India 63,000 km (Indian ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B31/18
Inventor 张俊王立军王琪郝明明汪丽杰
Owner 吉光半导体科技有限公司
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