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Preparation method of metal-type C/C composite material carbon slide strips

A technology of composite materials and metal molding, which is applied in the field of material preparation for electric locomotives, can solve the problems of high process cost and high resistivity of metal-type carbon fiber skateboards, and achieve the effects of low process cost, convenient industrial production, and lower resistivity

Active Publication Date: 2016-04-13
杭州卓导新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a metal-type C / C with low resistivity, low cost and high heat capacity that is convenient for industrial application, aiming at the problems of high resistivity and high process cost of the existing metal-type carbon fiber slide plate Preparation method of composite material carbon slide bar

Method used

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  • Preparation method of metal-type C/C composite material carbon slide strips

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Effect test

Embodiment 1

[0031] The diameter of copper wire is 0.12mm, the number of mesh is 40 mesh, the mass content is 23% red copper mesh, graphite powder (mass percentage content is 10%), carbon fiber, and the density is 0.94g / cm 3 The 2.5D carbon fiber needle-punched integral felt was prepared by chemical vapor infiltration process with a density of 1.72g / cm 3 The C / C composite material with a density of 1.96g / cm was prepared after two resin impregnation-carbonization processes 3 C / C composite materials.

[0032] The C / C pantograph slider in this example is mainly prepared through the following steps:

[0033] (1) At first, the PAN type T700 (12K) carbon fiber produced by Japan's Toray Company (Toray) is used to make the net tire and no weft cloth, and the single layer 0 ° no weft cloth, net tire layer, graphite powder (particle size is 100 microns), red copper mesh, single layer 90° no-weft cloth, net tire layer, graphite powder (100 microns in particle size), copper mesh, single-layer 0° no ...

Embodiment 2

[0037] The density is 1.25g / cm 3 The 2.5D carbon fiber needle-punched integral felt is a prefabricated body, wherein the prefabricated body contains copper powder, the copper powder is -200 mesh electrolytic red copper powder, and the mass content is 71%; the mass percentage content of graphite powder is 5%. The density is 2.24g / cm3 prepared by chemical vapor infiltration process 3 The C / C composite material with a density of 2.47g / cm3 was prepared through three resin impregnation-carbonization processes. 3 C / C composite materials.

[0038] The C / C pantograph slider in this example is mainly prepared through the following steps:

[0039] (1) First, the PAN type T700 (12K) carbon fiber produced by Japan Toray Company (Toray) is used to make a mesh tire and a weft-free cloth. Single-layer 0° non-weft cloth, mesh tire layer, graphite powder (particle size is 150 microns), copper powder (particle size is 75 microns), single-layer 90° non-weft cloth, net tire layer, graphite pow...

Embodiment 3

[0043] The density is 0.89g / cm 3 The 2.5D carbon fiber needle-punched integral felt is a prefabricated body, wherein the prefabricated body contains brass wires, the diameter of the short brass wires is 0.2 mm, the length is 5 mm, the mass content is 50%, and the mass percentage of graphite powder is The content is 2%; the density is 1.92g / cm3 prepared by chemical vapor infiltration process 3 The C / C composite material with a density of 2.21g / cm3 was prepared through three resin impregnation-carbonization processes. 3 C / C composite materials.

[0044] The C / C pantograph slider in this example is mainly prepared through the following steps:

[0045] (1) At first, the PAN type T700 (12K) carbon fiber produced by Japan's Toray Company (Toray) is used to make the net tire and no weft cloth, and the single layer 0 ° no weft cloth, net tire layer, graphite powder (particle size is 38 microns), short copper wire (0.1mm in diameter, 20mm in length), single-layer 90° no-weft cloth, ...

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Abstract

The invention relates to a preparation method of metal-type C / C composite material carbon slide strips, and belongs to the technical field of electric locomotive material preparation. The preparation method comprises following steps: single-layer 0 DEG no-woven carbon cloth, carbon fiber felt, graphite powder, a copper material, the single-layer 90 DEG no-woven carbon cloth, carbon fiber felt, graphite powder, the copper material, and the single-layer 90 DEG no-woven carbon cloth are overlapped successively in a circulation manner, relay-type needling is adopted to introduce carbon fiber bundles in a direction vertical to a layer direction so as to obtain a 2.5D carbon fiber needled integrated felt with a density ranging from 0.6 to 2.6g / cm3, and the 2.5D carbon fiber needled integrated felt is subjected to chemical vapor deposition pyrolysis carbon treatment so as to obtain a C / C-Cu composite material; and at last the C / C-Cu composite material is subjected to machining based on designed slide strip size, allowance for machining is put on reserve, and polymer steeping-carbonization treatment is carried out so as to obtain a finished product. The preparation method is simple; and the obtained metal-type C / C composite material possesses relatively low electrical resistivity and high thermal capacity.

Description

technical field [0001] The invention relates to a method for preparing a metal-type C / C composite material carbon slider, and belongs to the technical field of preparation of materials for electric locomotives. Background technique [0002] Electric traction high-speed trains use the carbon sliders on the pantograph carbon slides to frictionally contact with the catenary wires to transmit the current on the power grid to the locomotive power system, thereby supplying power to the high-speed train and maintaining the normal operation of the locomotive. [0003] At present, in addition to pure carbon materials, widely used carbon sliders also have a metal-impregnated carbon slider. Metal-impregnated carbon sliders are more demanding than pure carbon sliders, and should have lower resistivity. The temporary technical conditions for carbon sliders for EMUs TJ / CL328-2014 stipulate that their resistivity should be ≤12μΩ·m. [0004] During the use of the carbon skateboard, the cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/83C04B35/76C04B35/84C04B35/622B60L5/20
CPCB60L5/205C04B35/622C04B35/76C04B35/83C04B2235/48C04B2235/608C04B2235/77C04B2235/9607
Inventor 肖鹏逯雨海方华婵
Owner 杭州卓导新材料有限公司
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