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Preparation method of pantograph carbon contact strip material

A pantograph carbon slide and aggregate technology, which is applied in the field of carbon materials, can solve the problems such as unsatisfactory bulk density, mechanical strength and reliability of pantograph carbon slides, inability to meet service life, and failure to meet physical and chemical indicators. , to achieve the effect of improving yield and physical properties, easy deformation, and reducing wet mixing time

Active Publication Date: 2016-01-27
DATONG XINCHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sulfur, boron nitride, calcium chloride powder and other chemical preparations have been added to the pantograph carbon slide plate of the prior art, which does not belong to pure carbonaceous materials in a strict sense; the volume density, strong mechanical strength and Indicators such as reliability are not ideal
If the required physical and chemical indicators are not met, the corresponding service life cannot be met; the diversification of high-end raw materials, such as carbon fiber, natural graphite and other materials will inevitably increase the manufacturing cost

Method used

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  • Preparation method of pantograph carbon contact strip material
  • Preparation method of pantograph carbon contact strip material
  • Preparation method of pantograph carbon contact strip material

Examples

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Effect test

Embodiment 1

[0058] A method for preparing a pantograph carbon sliding plate material, comprising kneading, molding, primary roasting, impregnation, secondary roasting and mechanical processing;

[0059] The ratio of raw materials is: electrolytic graphene weight ratio is 65%, semi-reinforcing carbon black is 20%, needle-shaped petroleum coke is 15%; the weight ratio of aggregate and binder medium-temperature pitch is 70:30;

[0060] Among them, the purity of electrolytic graphene is 99.99%, and the particle size is 42nm;

[0061] The particle size of carbon black is 55nm, the resistivity is 0.6μΩ·m, and the pH value is 7.5-9;

[0062] The true density of needle petroleum coke is 2.10g / cm 3 , ash content <0.3%, volatile content <0.5%;

[0063] The binder is medium-temperature asphalt, and the softening point of the medium-temperature asphalt is 83-86°C, and the coking value is ≥49%;

[0064] Quinoline insoluble matter of impregnated asphalt ≤ 0.2%, softening point 83-86 ℃, coking value ≥ ...

Embodiment 2

[0090] A method for preparing a pantograph carbon sliding plate material, comprising kneading, molding, primary roasting, impregnation, secondary roasting and mechanical processing;

[0091] The weight ratio of electrolytic graphene is 75%, semi-reinforcing carbon black 15%, needle petroleum coke 10%; the weight ratio of aggregate and binder medium temperature pitch is 75:25;

[0092] Raw material index and ratio:

[0093] The purity of electrolytic graphene is 99.99%, and the particle size is 40nm;

[0094] The particle size of carbon black is 60nm, the resistivity is 0.7μΩ·m, and the pH value is 7.5-9;

[0095] The true density of needle petroleum coke is 2.10g / cm 3 , ash content <0.3%, volatile content <0.5%;

[0096] The binder is medium-temperature asphalt, and the softening point of the medium-temperature asphalt is 83-86°C, and the coking value is ≥49%;

[0097] Quinoline insoluble matter of impregnated asphalt ≤ 0.2%, softening point 83-86 ℃, coking value ≥ 48%.

...

Embodiment 3

[0113] A method for preparing a pantograph carbon sliding plate material, comprising kneading, molding, primary roasting, impregnation, secondary roasting and mechanical processing;

[0114] The weight ratio of electrolytic graphene is 65%, semi-reinforcing carbon black 20%, needle petroleum coke 15%; the weight ratio of aggregate and binder medium temperature pitch is 72:253;

[0115] Raw material index and ratio:

[0116] The purity of electrolytic graphene is 99.9% to 99.99%, and the particle size is 40nm;

[0117] The particle size of carbon black is 60nm, the resistivity is 0.7μΩ·m, and the pH value is 7.5-9;

[0118] The true density of needle petroleum coke is 2.10g / cm 3 , ash content <0.3%, volatile content <0.5%;

[0119]The binder is medium-temperature asphalt, and the softening point of the medium-temperature asphalt is 83-86°C, and the coking value is ≥49%;

[0120] Quinoline insoluble matter of impregnated asphalt ≤ 0.2%, softening point 83-86 ℃, coking value ...

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Abstract

The invention relates to the field of carbon materials, in particular to a preparation method of a pantograph carbon contact strip material. The preparation method comprises mixing kneading, molding, first roasting, impregnating and secondary roasting. During mixing kneading, the aggregate is electrolytic graphene with a particle size of 30-45nm, semi-reinforcing carbon black with a particle size of 40-55nm and needlelike petroleum coke. The binder is medium temperature pitch, and the impregnating agent is impregnating pitch. Specifically, the particle size of the electrolytic grapheme is preferably 35-45nm, more preferably 36-42nm, and most preferably 40nm; and the particle size of the semi-reinforcing carbon black is preferably 50-65nm, more preferably 55-62nm, and most preferably 60nm. The carbon contact strip material prepared by the method provided by the invention has physico-chemical performance indexes comparable to other carbonaceous materials, can replace other carbonaceous materials to produce pantograph carbon contact strip materials, and has the advantages of wide raw material sources, low price, relatively simple preparation process, low technical difficulty, low production cost, and high product performance.

Description

technical field [0001] The invention relates to the field of carbon materials, in particular to a method for preparing a pantograph carbon sliding plate material. Background technique [0002] Safety is the eternal theme of railway transportation production. Locomotives are the most important power equipment in railway transportation production. To provide locomotives with good quality and sufficient quantity for use, to ensure the smooth completion of transportation tasks and the safety of transportation production with good equipment quality is the main task of locomotive maintenance work. [0003] The electric locomotive pantograph carbon skateboard is a "throat" component that provides power for high-speed rail, bullet trains, and passenger and freight electric locomotives. Work in a natural environment. Due to the constant friction and impact with the catenary wire during operation, this part is a consumable part that is frequently replaced. [0004] As a key compon...

Claims

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Application Information

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IPC IPC(8): C04B35/52
Inventor 闵洁范志利张培林武建军纪永良赵宽
Owner DATONG XINCHENG NEW MATERIAL CO LTD
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