Graphene enhanced type carbon fiber composite pantograph pan and manufacturing technology thereof

A technology of pantograph slides and composite materials, applied in collectors, electric vehicles, power collectors, etc., can solve problems such as pantograph-catenary accidents, high brittleness, and environmental pollution, and achieve increased impact toughness and high compressive strength , the effect of high cross-linking density

Inactive Publication Date: 2017-02-22
张道松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current electric locomotive pantograph slides are mainly ordinary carbon slides, and the powder metallurgy slides and metal-impregnated carbon slides used before have many defects and have been gradually eliminated. The ordinary carbon slides are relatively inferior in terms of wear reduction and arc resistance Good, light weight, less noise, a film will be formed on the catenary wire during use, which greatly reduces the wear on the catenary, and it also has the advantages of good contact stability and little interference to radio signals. However, carbon skateboards have low mechanical strength, high brittleness, and are easy to fall off and break. Not only the service life is low, but also pantograph-catenary accidents are often caused. Moreover, the manufacturing process is complicated, energy consumption is high, and environmental pollution is great.
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Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The pantograph slide plate includes components and parts by weight of each component: 2 parts of graphene, 33 parts of novolak epoxy resin, 45 parts of carbon fiber cloth, 2 parts of graphite powder, 2 parts of wollastonite powder, toughened 4 doses,

[0025] The manufacturing process of this pantograph slide plate is: it comprises the following steps:

[0026] 1) Stirring: Graphene, phenolic epoxy resin, graphite powder, wollastonite powder, toughening agent are mixed by the above-mentioned proportioning by weight to obtain compound;

[0027] 2) Glue-coating and rolling: apply the mixture on the carbon fiber cloth with a glue applicator, repeatedly roll and squeeze out the excess mixture, so that the mixture and the carbon fiber cloth are fully bonded;

[0028] 3) drying: the rolled carbon fiber cloth is dried at a temperature of 100°C;

[0029] 4) Superposition: Cut the dried carbon fiber cloth into a carbon fiber cloth a with a length of 1000 mm along the direction...

Embodiment 2

[0035] The pantograph slide plate includes components and parts by weight of each component: 1 part of graphene, 30 parts of novolac epoxy resin, 40 parts of carbon fiber cloth, 1 part of graphite powder, 1 part of wollastonite powder, toughened 3 doses,

[0036] The manufacturing process of the pantograph slide plate in this example is the same as in Example 1, the resistivity of the pantograph slide plate obtained is 3.59µΩ·m, and the impact toughness value is 5.42J / cm 2 , the Shore hardness is 68, and the compressive strength is 83.4MPa. The skateboard has small resistivity, high impact toughness, high hardness and high compressive strength. The above technical indicators can meet the operation needs of ordinary trains and high-speed rail.

Embodiment 3

[0038] The pantograph slide plate includes components and parts by weight of each component: 5 parts of graphene, 40 parts of novolac epoxy resin, 50 parts of carbon fiber cloth, 5 parts of graphite powder, 5 parts of wollastonite powder, toughening 7 doses,

[0039] The manufacturing process of the pantograph slide plate in this example is the same as that in Example 1. The resistivity of the prepared pantograph slide plate is 3.36µΩ·m, and the impact toughness value is 5.05J / cm 2, the Shore hardness is 72, and the compressive strength is 76.2MPa. The skateboard has small resistivity, high impact toughness, high hardness and high compressive strength. The above technical indicators can meet the operation needs of ordinary trains and high-speed rail.

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Abstract

The invention discloses a graphene enhanced type carbon fiber composite pantograph pan and a manufacturing technology thereof. The graphene enhanced type carbon fiber composite pantograph pan contains the following components in parts by weight: 1-5 parts of graphene, 30-40 parts of novolac epoxy, 40-50 parts of carbon fiber cloth, 1-5 parts of graphite powder, 1-5 parts of wollastonite powder and 3-7 parts of toughening agent. The pantograph pan manufactured according to the invention has the advantages of high electrical conductivity, specific resistance below 3.60 micro omega-m, high impact toughness, notched bar impact strength above 5.00J/cm2, high hardness, high abrasive resistance, shore hardness above 67, high strength compressive strength above 75MPa, capability of meeting the running requirements of common trains and high-speed rails, capability of effectively solving the problem of the dependence on import of the pantograph pan for Chinese high-speed rail and capability of realizing replacement of the imported products with the autonomously produced products.

Description

technical field [0001] The invention relates to the technical field of carbon fiber composite materials, in particular to a graphene-enhanced carbon fiber composite material pantograph slide plate and a manufacturing process thereof. Background technique [0002] The current electric locomotive pantograph slides are mainly ordinary carbon slides, and the powder metallurgy slides and metal-impregnated carbon slides used before have many defects and have been gradually eliminated. The ordinary carbon slides are relatively inferior in terms of wear reduction and arc resistance Good, light weight, less noise, a film will be formed on the catenary wire during use, which greatly reduces the wear on the catenary, and it also has the advantages of good contact stability and little interference to radio signals. However, carbon skateboards have low mechanical strength, high brittleness, and are easy to fall off and break. Not only do they have a low service life, but they often cause...

Claims

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Application Information

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IPC IPC(8): C08L63/04C08K13/04C08K7/06C08K3/04C08K3/34B60L5/20
CPCB60L5/20B60L2200/26C08K3/04C08K3/34C08K7/06C08K13/04C08K2201/014C08L63/04
Inventor 张道松张雨珊张连忠张连伟张彩虹王国胜张庆军王翠梅
Owner 张道松
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