Pantograph carbon slide plate made of carbon-carbon composite material and preparation method thereof

Abstract

The invention discloses a pantograph carbon slide plate made of a carbon-carbon composite material. The pantograph carbon slide plate is prepared from aggregates, powder materials and bonding agents,wherein the aggregates are prepared from carbon-carbon composite materials, asphalt coke and semi-reinforced carbon black; the powdery materials are prepared from graphite powder; the bonding agents are prepared from medium-temperature modified coal asphalt. According to a method, firstly, uniformly mixed and ground powdery materials are subjected to granulation in a granulation machine; the powdery materials are started to be added into a spiral machine; the spiral machine is started to feed the powdery materials into a granulation machine material storage cabin; the blanking speed of the material storage cabin is regulated; the granulation machine is started; extrusion is performed; the particles are put into the material tube; the particles in the material tube are shaped and processed;the extrusion shaping mode is used for shaping and processing; the used dry materials are required to reach the state of not forming ball shapes; meanwhile, the mold material tube temperature is set;when the temperature is raised to the set temperature, the material addition extrusion is started after the stability is reached through observation; the extrusion and shaping are formed; next, the shaped blanks are roasted. The pantograph carbon slide plate has the advantages that the quality is stable; the steps are simple; the realization is convenient.

Description

technical field [0001] The invention relates to the technical field of carbon slides, in particular to a carbon-carbon composite pantograph carbon slide and a preparation method thereof. Background technique [0002] With the development of the national economy and the development of the transportation market, the corresponding scientific research and development of rail transit is also underway. The electric locomotive pantograph carbon skateboard is a "throat" component that provides power for high-speed rail, bullet trains, and passenger and freight electric locomotives. The main function For: the electric locomotive directly contacts the catenary wire through the uppermost part of the pantograph on the front of the locomotive, and works in a natural environment, which needs to deal with various harsh weathers. It is a consumable part that is frequently replaced due to the constant friction and impact with the catenary conductors while working in its natural environment. ...

AI Technical Summary

Problems solved by technology

Carbon skateboard itself is a very good lubricant, with good self-lubricating performance and anti-friction performance, less wear on the catenary wire, and high temperature resistance, not easy to weld with the catenary wire, but its mechanical strength is low and impact resistance is poor , so it is easy to break or break, and at the same time, pure carbon skateboards have defects such as poor flexural compressive strength and impact resistance, especially when encountering hard wires and wires icing, it is easy to cause the skateboard to break and crack; powder Metallurgical slides wear more seriously on catenary wires

Using carbon-carbon composite materials as the main raw material to produce new electric locomotive pantograph carbon-based composite carbon slides has very good physical and chemical performance indicators. Although high-end graphite products can meet the production process requirements of pantograph carbon slides, but its The price is very expensive, and domestic high-performance graphite products are still in the development stage, while ordinary carbon carbon materials cannot fully meet the carbon slippery index

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