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Preparation method for carbon sliding block material used for maglev train

A magnetic levitation train and magnetic levitation technology, applied to electric vehicles, vehicle parts, power collectors, etc., can solve the problems of parking conductivity, edge drop, block drop, large friction coefficient, etc., achieve good lubrication performance, prolong service life, The effect of increasing the coefficient of friction

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 skateboards for maglev trains. Most of the existing carbon skateboards are powder metallurgy carbon skateboards. Due to the hard material and large friction coefficient of powder metallurgy skateboards, serious wear and tear on the track, and their own material characteristics, it is easy to cause damage during operation. Dropping edges, falling blocks, etc., and easy to cause parking and poor electrical conductivity, etc., and the price is high

Method used

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  • Preparation method for carbon sliding block material used for maglev train
  • Preparation method for carbon sliding block material used for maglev train
  • Preparation method for carbon sliding block material used for maglev train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] (1) Prepare materials according to the following proportions by weight

[0085]

[0086] (2) Raw material mixing

[0087] 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;

[0088] 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;

[0089] (3) Compression treatment

[0090] Putting the powdery mixture in a mold for compression treatment to make a cylindrical material column;

[0091] (4) Curing treatment

[0092] Put the compressed material column in an oven at 100°C for curing treatment, the treatment time is 14 hours, and keep the material column at a constant temperature...

Embodiment 2

[0102] (1) Prepare materials according to the following proportions by weight

[0103]

[0104] (2) Raw material mixing

[0105] 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;

[0106] 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;

[0107] (3) Compression treatment

[0108] Putting the powdery mixture in a mold for compression treatment to make a cylindrical material column;

[0109] (4) Curing treatment

[0110] Put the compressed material column in an oven at 105°C for curing treatment, the treatment time is 16 hours, and keep the material column at a constant temperature;

[0111] (5)...

Embodiment 3

[0120] (1) Prepare materials according to the following proportions by weight

[0121]

[0122]

[0123] (2) Raw material mixing

[0124] 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;

[0125] 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;

[0126] (3) Compression treatment

[0127] Putting the powdery mixture in a mold for compression treatment to make a cylindrical material column;

[0128] (4) Curing treatment

[0129] 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 temperature;

[0130] (5) extrusion...

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Abstract

The invention discloses a preparation method for a carbon sliding block material used for a maglev train. The preparation method comprises the following steps: under a heating condition, mixing an additive, a lubricant and carbon sliding block basic raw materials without asphalt uniformly to obtain an initial mixed material; under a heating condition, adding a carbon sliding block basic raw material asphalt to the initial mixed material, performing mixing under stirring uniformly to obtain a mixed material; placing the mixed material into a mould, and performing pressing treatment to obtain acylinder-shaped material column; performing curing treatment on the material column to obtain a cured material column; placing the cured material column into an extruder, and performing extrusion molding to obtain a molded blank; and performing roasting treatment on the blank to obtain the carbon sliding block material. The carbon sliding block material prepared by the method has the advantages ofhaving good strength, and good wear resistance, pressure resistance, stability and lubricating performance, being easy to demould, and having high environmental adaptability, good mechanical processing performance, good conductivity and heat conducting performance, long service life, and good physical, mechanical and chemical properties.

Description

technical field [0001] The invention relates to a third rail carbon slide plate of a magnetic levitation train, in particular to a preparation method of a carbon slide plate material for a magnetic levitation 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 relatively large achievements. At...

Claims

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Application Information

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IPC IPC(8): C04B35/83C04B35/82C04B35/52C04B35/622B60L5/39
Inventor 朱约辉林勇
Owner SUZHOU DONEKA NEW MATERIALS CORP LTD
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