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

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...

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.

[0003] The patent with the publication number CN1178745A discloses a carbon-carbon composite pantograph slide plate for electric locomotives. Although the problem of low flexural strength of the slide plate is solved, the wear ratio of the catenary wire is greatly improved due to the addition of copper mesh At the same time, the copper mesh in the skateboard is easily eroded by rainwater in the rainy season, which will cause an oxide layer to form between the skateboard and the aluminum bracket, which will increase the resistance of the skateboard and reduce the conductivity, which will easily cause a short circuit or even burn out the skateboard.

The above skateboards all have certain defects, which cannot meet the needs of technological development. The application effect of ordinary trains is not ideal, and the skateboards for high-speed rail can only rely on imports.