Electric ablation-resistant and wear-resistant anti-friction copper-based composite material and preparation method thereof
A copper-based composite material, electricity-resistant technology, applied in metal material coating process, liquid chemical plating, coating and other directions, can solve the problems of poor performance batch stability, long process flow, etc., to improve batch stability , Overcome the long process flow and achieve the effect of full densification
Active Publication Date: 2019-01-04
CENT SOUTH UNIV
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Problems solved by technology
[0005] In order to solve the problems of poor performance batch stability and long process flow of electric ablation-resistant materials in the prior art, one of the purposes of the present invention is to provide an electric ablation-resistant, wear-resistant and friction-reducing copper-based composite material
Method used
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Embodiment 1
[0054] The electric ablation-resistant, wear-resistant and wear-reducing copper-based composite material includes the following components in mass percentage:
[0055] Sn8%, Pb5%, Cr4%, C2.0%, TiB 2 0.2%, copper 80.8.
Embodiment 2
[0057] The electric ablation-resistant, wear-resistant and wear-reducing copper-based composite material includes the following components in mass percentage:
[0058] Sn10%, Pb5%, Cr3%, C1.5%, TiB 2 0.3%, copper 80.2.
Embodiment 3
[0060] The electric ablation-resistant, wear-resistant and wear-reducing copper-based composite material includes the following components in mass percentage:
[0061] Sn7%, Pb3%, Cr5%, C3.5%, TiB 2 0.3%, Copper 91.2.
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The invention provides an electric ablation-resistant and wear-resistant anti-friction copper-based composite material which comprises the following raw materials: Sn, Pb, Cr, C, TiB2 and copper. Theinvention further provides a preparation method of the composite material. In the electric ablation-resistant and wear-resistant anti-friction copper-based composite material, graphite is added by using copper-plated graphite powder; a copper layer on the surface of graphite can reduce the interface energy and density difference between the graphite and the copper alloy powder, so that the distribution of the graphite in the composite material is more uniform. In a preparation method, heating is realized by induction rapid heating, and then the temperature is averaged, which not only shortensthe heating time, saves energy consumption, but also realizes uniform temperature heating, and avoids the skin effect and sheath damage caused by long heating time of ordinary induction, while avoiding a problem that uniform temperature of a cross section cannot be realized due to poor thermal conductivity of the powder.
Description
technical field [0001] The invention belongs to the technical field of copper-based composite materials, and in particular relates to an electric-ablation-resistant, wear-resistant and friction-reducing copper-based composite material and a preparation method thereof. Background technique [0002] The high-speed rail transit system includes: high-speed rail, urban rail, subway, etc. It is an all-electric drive system with a maximum speed of more than 385km / h, which has irreplaceable advantages. The performance of the pantograph slider used for contact and the link slider used for contact between the car body and the track, such as electrical conductivity, high wear resistance and impact resistance, put forward higher requirements. At present, most of the slider materials used in my country are imported products. [0003] CN101345143 discloses a Cu / Ti alloy with high strength, high electrical conductivity, high thermal conductivity, oxidation resistance, fusion welding resis...
Claims
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IPC IPC(8): C22C1/10C22C1/05C22C9/02C23C18/18C23C18/40
CPCC22C1/05C22C9/02C23C18/1893C23C18/405
Inventor 李周邱文婷肖柱龚深
Owner CENT SOUTH UNIV
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