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Preparation method of carbon slide block composite for magnetic levitation train

A technology for maglev trains and composite materials, which is applied in the field of the preparation of carbon sliders for the third rail of maglev trains and carbon slider composite materials for maglev trains, and can solve the problems of parking conductivity, large friction coefficient, falling edges, falling blocks, etc. , to achieve the effect of good lubricating performance, improving friction coefficient and prolonging service life

Inactive Publication Date: 2018-01-09
SUZHOU DONEKA NEW MATERIALS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is almost no research on carbon sliders for maglev trains. Most of the existing carbon sliders are powder metallurgy carbon sliders. The process is easy to cause edge drop, block drop, etc., and it is easy to cause parking and poor electrical conductivity, etc., and the price is high

Method used

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  • Preparation method of carbon slide block composite for magnetic levitation train
  • Preparation method of carbon slide block composite for magnetic levitation train
  • Preparation method of carbon slide block composite for magnetic levitation train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] 1. Preparation of carbon slider material

[0124] (1) Prepare materials according to the following proportions by weight

[0125]

[0126] (2) Raw material mixing

[0127] Continuously heat the mixing pot, when the temperature of the mixing pot reaches 120°C, add petroleum coke, artificial graphite, natural graphite, pitch, molybdenum disulfide, carbon fiber and zinc stearate into the mixing pot, stir and mix for 2 hours, and make It is uniform, and the powdery primary mixture is obtained;

[0128] Then, when the temperature of the heating pot reaches 150°C, add asphalt to the initial mixture, stir and mix for 1.5 hours to make it uniform, and obtain a powdery mixture;

[0129] (3) Compression treatment

[0130] Putting the powdery mixture in a mold for compression treatment to make a cylindrical material column;

[0131] (4) Curing treatment

[0132] Put the compressed material column in an oven at 100°C for curing treatment, the treatment time is 14 hours, and...

Embodiment 2

[0153] 1. Preparation of carbon sliders

[0154] (1) Prepare materials according to the following proportions by weight

[0155]

[0156] (2) Raw material mixing

[0157] Continue heating the mixing pot, when the temperature of the mixing pot reaches 125°C, add petroleum coke, artificial graphite, natural graphite, pitch, molybdenum disulfide, carbon fiber and zinc stearate into the mixing pot, stir and mix for 2.3 hours, Make it uniform to obtain a powdery primary mixture;

[0158] Then, when the temperature of the heating pot reaches 145°C, add asphalt to the initial mixture, stir and mix for 1.2 hours to make it uniform, and obtain a powdery mixture;

[0159] (3) Compression treatment

[0160] Putting the powdery mixture in a mold for compression treatment to make a cylindrical material column;

[0161] (4) Curing treatment

[0162] Put the compressed material column in an oven at 105°C for curing treatment, the treatment time is 16 hours, and keep the material colu...

Embodiment 3

[0183] 1. Preparation of carbon sliders

[0184] (1) Prepare materials according to the following proportions by weight

[0185]

[0186] (2) Raw material mixing

[0187] Continue heating the mixing pot, when the temperature of the mixing pot reaches 115°C, add petroleum coke, artificial graphite, natural graphite, pitch, molybdenum disulfide, carbon fiber and zinc stearate into the mixing pot, stir and mix for 2.2 hours, Make it uniform to obtain a powdery primary mixture;

[0188] Then, when the temperature of the heating pot reaches 155°C, add asphalt to the initial mixture, stir and mix for 1.3 hours to make it uniform, and obtain a powdery mixture;

[0189] (3) Compression treatment

[0190] Putting the powdery mixture in a mold for compression treatment to make a cylindrical material column;

[0191] (4) Curing treatment

[0192] Put the compressed material column in an oven at 95°C for curing treatment for 17 hours to keep the material column at a constant tempe...

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Abstract

The invention discloses a preparation method of a carbon slide block composite for a magnetic levitation train. The preparation method comprises the following steps: uniformly mixing all raw materialsof a carbon slide block material to prepare a mixture; carrying out pressing on the mixture, and carrying out solidification and extrusion forming to prepare a formed blank; roasting the blank to prepare the carbon slide block material; melting and uniformly mixing an impregnated metal raw material under a heating condition to prepare an impregnated metal liquid; and pouring the impregnated metalliquid into the heated carbon slide block material, and pressing the impregnated metal liquid into the carbon slide block material by air pressurization to obtain the carbon slide block composite. The carbon slide block composite prepared by using the method disclosed by the invention is wear-resistant, pressure-resistant, high in strength, good in stability, high in environment adaptability, good in machinability, good in electrical conductivity and heat conductivity and long in service life and has good physical, mechanical and chemical properties.

Description

technical field [0001] The invention relates to a carbon slider for the third rail of a maglev train, in particular to a method for preparing a carbon slider composite material for a maglev train, and belongs to the field of urban rail transit accessories. Background technique [0002] The maglev train is a modern high-tech rail vehicle, which realizes the non-contact suspension and guidance between the train and the track through electromagnetic force, and then uses the linear electromagnetic force to pull the train to run. With the continuous enhancement of the country's economic strength and the improvement of people's living standards, it is necessary to improve the transportation capacity of rail transit to meet the needs of economic development and people's livelihood. Germany, Japan, the United States and other countries have launched the development and research of maglev trains. Germany and Japan went to achieved a relatively large achievement. At present, my count...

Claims

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Application Information

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IPC IPC(8): C04B35/83C04B35/82C04B35/52C04B35/622C04B41/88
Inventor 朱约辉林勇
Owner SUZHOU DONEKA NEW MATERIALS CORP LTD
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