A pure carbon slide plate for high-speed train pantograph and preparation method thereof

A technology for high-speed trains and carbon slides, which is applied to current collectors, electric vehicles, vehicle components, etc., can solve the problems of complex preparation process, wide variety of formula raw materials, and short service life of carbon slides, and achieves simplified preparation process and long service life. Long, wear-resistant effect

Active Publication Date: 2021-09-03
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies in the prior art and solve the technical problems of short service life of carbon slides, various formula raw materials, and complicated preparation process, the present invention provides a pure carbon slide plate for high-speed train pantograph and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] S1. Ingredients: Mix petroleum coke with a particle size of 30 mesh and artificial graphite powder with a particle size of 300 mesh in a mass ratio of 1:0.1 to obtain powder raw materials; mix coal tar pitch and thermoplastic phenolic resin in a mass ratio of 1:0.18 , to obtain the liquid raw material, which will be used in the next step;

[0026] S2. Kneading: Put the powder raw materials and liquid raw materials mixed in step S1 into a kneader at a mass ratio of 1:0.18 and knead them. The kneading temperature is 200° C., and the kneading time is 0.5 hours;

[0027] S3. Molding: put the raw materials kneaded in step S2 into a mold for press molding, and the molding pressure is 200 MPa;

[0028] S4. Roasting: put the green compact obtained in step S3 into a roasting furnace for roasting, and the roasting temperature is 1300° C.;

[0029] S5. Impregnation: put the carbon product roasted in step S4 into an impregnation kettle for asphalt impregnation, the pressure of the...

Embodiment 2

[0032] S1. Ingredients: Mix pitch coke with a particle size of 300 mesh and natural flake graphite powder with a particle size of 50 mesh at a mass ratio of 1:0.3 to obtain powder raw materials; mix coal tar pitch and thermoplastic phenolic resin at a mass ratio of 1:0.1 Evenly, liquid raw materials are obtained, which will be used in the next step;

[0033] S2. Kneading: Put the powder raw materials and liquid raw materials mixed in step S1 into a kneader at a mass ratio of 1:0.32 and knead them. The kneading temperature is 130° C., and the kneading time is 2 hours;

[0034] S3. Molding: put the raw materials kneaded in step S2 into a mold for press molding, and the molding pressure is 160 MPa;

[0035] S4. Roasting: put the green compact obtained in step S3 into a roasting furnace for roasting, and the roasting temperature is 700° C.;

[0036] S5. Impregnation: put the carbon product roasted in step S4 into an impregnation kettle for asphalt impregnation, the pressure of th...

Embodiment 3

[0039] S1. Ingredients: Mix pitch coke with a particle size of 150 mesh and artificial graphite powder with a particle size of 100 mesh at a mass ratio of 1:0.6 to obtain powder raw materials; mix petroleum pitch and thermoplastic phenolic resin at a mass ratio of 1:0.2. , to obtain the liquid raw material, which will be used in the next step;

[0040] S2. Kneading: Put the powder raw materials and liquid raw materials mixed in step S1 into a kneader at a mass ratio of 1:0.25 and knead them. The kneading temperature is 160° C., and the kneading time is 1 hour;

[0041] S3, mold pressing: put the raw material kneaded in step S2 into a mold for press molding, and the molding pressure is 100MPa;

[0042] S4. Roasting: put the green compact obtained in step S3 into a roasting furnace for roasting, and the roasting temperature is 1100° C.;

[0043] S5. Impregnation: put the carbon product roasted in step S4 into an impregnation kettle for asphalt impregnation, the pressure of the ...

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Abstract

The invention relates to a pure carbon sliding plate for a high-speed train pantograph and a preparation method thereof, which belongs to the technical field of materials for a high-speed train pantograph sliding plate and a preparation method thereof, and solves the problems of short service life of a carbon sliding plate, various types of formula raw materials, and a preparation process complex technical issues. The solution is: the raw materials are composed of coke powder, graphite powder, phenolic resin and pitch; the preparation process includes six process steps of batching, kneading, molding, roasting, impregnating and secondary roasting. It has the characteristics of simple raw material and process, high strength, good lubricity, long service life, etc., and can fully meet the requirements of sliding plate materials for high-speed train pantographs.

Description

technical field [0001] The invention belongs to the technical field of materials for high-speed train pantograph slide plates and a preparation method thereof, and specifically relates to a pure carbon slide plate for high-speed train pantographs and a preparation method thereof. Background technique [0002] The pantograph slide needs to complete the transmission of electric energy during the high-speed sliding process, and at the same time bear the common damage of mechanical wear, hard point impact, arc ablation and chemical corrosion, and the working environment is very harsh. As a power component of a locomotive, the performance and quality stability of the skateboard material are crucial to the stability, safety and reliability of the vehicle. [0003] The currently used sliding board materials mainly include powder metallurgy sliding boards and carbonaceous sliding boards. Although the powder metallurgy sliding boards have better conductivity, their matrix components ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/524C04B35/634C04B35/64B60L5/20
CPCB60L5/205C04B35/524C04B35/63476C04B35/63496C04B35/64C04B2235/425C04B2235/661C04B2235/77C04B2235/96
Inventor 刘占军张东卿赵红超刘犇张俊鹏雷世文
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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