Railway steel rail undulating abrasion control method

A control method and rail wear technology, applied in the field of rail transit, can solve problems such as high economic cost and reduced service life of rails, and achieve the effects of increasing service life, reducing costs, and improving wear resistance

Active Publication Date: 2021-03-16
SOUTHWEST JIAOTONG UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, the wavy wear of railway rails is mainly improved by grinding the top surface of the rail. Rail grinding can only improve the wavy wear of the rails in a short period of time. With the extension of the operation time, the wavy wear of the rails will reoccur. ;Rail grinding is used to eliminate wavy wear by cutting off the surface material of the rail, reducing the service life of the rail, and the economic cost is high

Method used

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  • Railway steel rail undulating abrasion control method
  • Railway steel rail undulating abrasion control method
  • Railway steel rail undulating abrasion control method

Examples

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Embodiment 1

[0030] Such as figure 1 and figure 2 As shown, the present embodiment provides a method for controlling wavy wear of railway rails, which includes the following steps:

[0031] 1. Collect line information of the railway rail corrugated wear section, including operating conditions and on-site data, and then conduct rail corrugated wear tracking test to obtain rail corrugated wear data;

[0032] 2. Based on the wear rate of the rail and the wear characteristics of the rail surface quenching strengthening treatment material, match the selected area strengthening parameters of the design wave trough position of the rail;

[0033] 3. According to the strengthening parameters, through the selective quenching and strengthening technology on the surface of the rail, the wavy wear trough position of the rail is selected and strengthened, and the relative rate ratio of the wear of the wavy wear rail between the peak and the trough position is increased;

[0034] 4. When the amplitude...

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Abstract

The invention relates to the technical field of rail transit, in particular to a railway steel rail undulating abrasion control method which comprises the following steps that 1, railway steel rail undulating abrasion section line information is collected, a steel rail undulating abrasion tracking test is conducted, and steel rail undulating abrasion data is obtained; 2, based on the steel rail abrasion rate and the steel rail surface quenching strengthening treatment material abrasion characteristics, steel rail selected area strengthening parameters at the trough position are matched and designed; 3, according to the strengthening parameters, through the steel rail surface selective quenching strengthening technology, the wavy abrasion trough position of the steel rail is subjected to selective strengthening treatment, and the abrasion relative rate ratio of the wavy abrasion steel rail crest position to the wavy abrasion trough position is increased; and 4, after the amplitude between the wave crest and the wave trough of the wavy abrasion steel rail is reduced to a certain value and abrasion of the strengthening material at the wave trough position disappears, uniform area selection strength treatment is conducted on the surface of the steel rail. According to the invention, the development of wavy abrasion of the steel rail can be better controlled.

Description

technical field [0001] The invention relates to the technical field of rail transportation, in particular to a method for controlling wave-like wear of railway rails. Background technique [0002] In the existing technology, the wavy wear of railway rails is mainly improved by grinding the top surface of the rail. Rail grinding can only improve the wavy wear of the rails in a short period of time. With the extension of the operation time, the wavy wear of the rails will reoccur. ; Rail grinding is used to eliminate wavy wear by cutting off the surface material of the rail, reducing the service life of the rail, and the economic cost is high. Contents of the invention [0003] The content of the present invention is to provide a method for controlling wavy wear of railway rails, which can overcome some or some defects in the prior art. [0004] A method for controlling wavy wear of railway rails according to the present invention, comprising the following steps: [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B31/18E01B35/00
CPCE01B31/18E01B35/00
Inventor 王平徐井芒王凯陈嵘王树国汤铁兵方嘉晟安博洋
Owner SOUTHWEST JIAOTONG UNIV
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