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A kind of preparation method of graphene copper composite material

A composite material and graphene technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems that graphene copper composite materials cannot meet, and achieve the effects of mass production, long service life and simple materials

Active Publication Date: 2021-05-04
河北碳禾新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the application of graphene-copper composite materials in solar heat storage technology in the field of high-speed rail is still seldom. The main reason is that the graphene-copper composite materials currently prepared cannot meet the requirements

Method used

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Embodiment Construction

[0029] Below in conjunction with embodiment the present invention is further described.

[0030] A preparation method of a graphene-copper composite material, wherein the raw materials used include aggregate copper base and powder, wherein the aggregate copper base is pure copper, and the powder is graphene material;

[0031] The aggregate is pure copper with a density of 8.92×10 3 / cm 3 , the resistivity is 1.694*10-8Ω m, and the purity is 99.9%;

[0032] The particle size of described powder graphene is 50-100nm;

[0033] The mixed powder is that the weight ratio of copper powder and dry material is 20:80-25:75;

[0034] Adopting above-mentioned batching to carry out the method for graphene copper composite material preparation comprises the following steps:

[0035] S1. The copper-based aggregate used is granular, which is atomized into a uniform powder by an atomizing device;

[0036] S2, degreasing the atomized aggregate powder, adding graphene to the degreased aggre...

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Abstract

The invention discloses a method for preparing a graphene-copper composite material, which comprises the following steps: S1, using granular copper-based aggregate, and atomizing it into a uniform powder through an atomizing device; S2, atomizing the atomized bone Degrease the material powder, and add the degreased aggregate powder into graphene, and send it to the mixer together, and then mix the two materials; S3, send the mixed material into the molding machine, according to the required sintering The structure is extruded, and the formed semi-finished product is sent to the roasting furnace through the mobile bracket, and the transportation process should be handled with care to avoid any impact on its surface structure; S4. After the powder mixed material is sent to the roasting furnace, Carry out one sintering, after the sintering is completed, wait for it to cool down to a certain temperature, then send it back to another roasting furnace, and get the shaped product after sintering again. By adopting the method of the invention, the preparation method of the graphene-copper composite material has low equipment requirements, simple and convenient operation, and good reinforcement dispersibility.

Description

technical field [0001] The invention relates to the field of carbon material science and technology, in particular to a method for preparing a graphene-copper composite material. Background technique [0002] With the development of my country's high-speed rail business, the corresponding scientific research and development of rail transit is getting more and more in-depth. The pantograph carbon skateboard of electric locomotive is a "throat" component that provides power for high-speed rail, bullet trains and passenger and freight electric locomotives. Pantograph skateboard installation The uppermost part of the pantograph is directly in contact with the contact wire, and in the sliding state, the current is obtained from the contact wire to supply power to the locomotive. Moreover, the pantograph slides are in direct contact with catenary wires and work in a natural environment, which needs to cope with various harsh weathers. It is a consumable part that is frequently rep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/08B22F1/00B22F3/20B22F3/10B22F3/105
CPCB22F1/0003B22F3/1007B22F3/105B22F3/20B22F9/082B22F2003/1051B22F2998/10B22F1/145
Inventor 闵洁
Owner 河北碳禾新材料有限公司
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