Copper-plated carbon nanotube reinforced pantograph pan material and preparation method thereof

Abstract

The invention provides a copper-plated carbon nanotube reinforced pantograph pan material and a preparation method thereof. The material comprises the following raw materials: Cu, CNTs, Ti3SiC2 and TiB2 in a volume ratio of (65-90):(1-20):(2-30):(1-20). The preparation method comprises the following steps of: uniformly mixing the four raw materials and glycerol, baking the mixture, loading the mixture into a steel mould, cold molding, placing the mixture in a high-temperature furnace under the protection of hydrogen, raising the temperature to 700 to 900 DEG C, preserving heat for 5 to 30 minutes, taking out the sample, cold molding again, sintering the sample at the temperature of between 800 and 900 DEG C for the second time and preserving heat for 30 to 60 minutes. The method has a simple process; the performance of the pantograph pan material can be greatly improved by the traditional equipment; and the prepared pantograph pan material has the advantage of relatively low cost.

Description

technical field [0001] The invention relates to the field of materials, in particular to a pantograph sliding plate material reinforced with copper-coated carbon nanotubes and a preparation method thereof. Background technique [0002] The pantograph slide is an important current-collecting component for the electric locomotive to obtain power. It is installed on the uppermost part of the pantograph and directly contacts the catenary wire. When the skateboard is stationary or sliding, it obtains current from the catenary wire to provide power for the locomotive. Therefore, the quality of the current receiving system of this contact system directly affects whether the locomotive can obtain sufficient traction and operate safely and reliably. The quality of the skateboard is a key factor affecting the quality of the flow. Skateboard materials need to meet or coordinate the performance indicators of the following aspects at the same time: (1) low electrical resistivity and con...

AI Technical Summary

Problems solved by technology

Pure metal skateboards have low resistivity and strong compression and impact resistance, but they wear very seriously on the wires and have been gradually eliminated; carbon skateboards are not strong enough, have high resistivity, and are prone to breakage, often causing pantograph-catenary accidents and affecting railway operations. ; Although the powder metallurgy material is ideal at present, it wears a lot on the wire, which leads to a shortened service life of the network cable and an increase in maintenance costs.

Although there have been researches on using carbon fiber material as a reinforcing phase to improve the impact resistance of skateboard materials, the effect is not ideal. With the continuous speed up of railway trains, the original pantograph skateboard parts can no longer meet the requirements of high-speed and quasi-high-speed locomotives. In order to solve the shortcomings of the above-mentioned skateboards, it is urgent to develop a skateboard material with arc resistance, low wear, strong conductivity, corrosion resistance and heat resistance, especially impact resistance to replace the original skateboard.

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