Application of Carbon Fiber in The Field of Rail Transit

Application of carbon fiber in the field of rail transit

With the rapid development of the domestic rail transit industry, the requirement of lightweight rail vehicles is getting higher and higher. Carbon fiber composite materials with low density, high strength, heat insulation, fatigue resistance, flame retardant, corrosion resistance, strong designability and other advantages, has received more and more attention, and with the development of technology in rail transit usage will continue to rise.CFRTP

1, light weight, high strength

With the increasing lightweight requirements for vehicles, it is imperative to choose a good weight reduction material. Carbon fiber is a fiber material with a very low density, less than the density of aluminum, and less than 1/4 of steel, and its specific strength and specific modulus are the highest in existing engineering materials. Compared with the traditional metal materials such as steel and aluminum alloy, carbon fiber composite materials applied to the body, cab and equipment compartment of subway vehicles are reduced by more than 30%, the bogie frame is reduced by 40%, and the whole vehicle is reduced by 13%.

2. Strong designability

Carbon fiber products are made of carbon fiber prepreg laminated hot pressing. In the production process, the optimal mechanical effect can be achieved by adjusting the reasonable design of the layering, so as to meet the requirements of customers.

3, seismic absorption effect is good

Carbon fiber material has the characteristics of energy absorption seismic, not only can prevent the shadow of stray current, but also ensure the stability of the driving process, in addition, carbon fiber also has the effect of sound absorption, reducing the impact of noise.

4, excellent corrosion resistance

Carbon fiber is a non-metallic material with low chemical activity and can resist corrosion such as acid, alkali and salt. Therefore, it can not only extend the service life of the structure, but also basically do not need to use anti-corrosion, anti-rust and other measures, so as to reduce unnecessary maintenance.

5, good fire performance

Carbon fiber products are made of carbon fiber prepreg laminated hot pressing. In the production process, the optimal mechanical effect can be achieved by adjusting the reasonable design of the layering, so as to meet the requirements of customers.

Rail transit carbon fiber commonly used parts

With the improvement of lightweight and low-carbon environmental protection requirements of rail vehicles, carbon fiber composite materials will be more and more applied to rail transit vehicles. Its strength and wear resistance are better than steel, and it can be used for some stable forces, which can meet the performance requirements and reduce the overall weight.

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