Carbon Fiber in Rail Transportation

  With the rapid development of domestic rail transportation industry, the requirement of light weight of rail vehicles is getting higher and higher. Carbon fiber composites have received more and more attention by virtue of their advantages of low density, high strength, heat insulation, fatigue resistance, flame retardant, corrosion resistance, and strong designability, etc., and their usage in rail transportation will continue to rise with the development of technology.

1、Light weight, high strength

With the lightweight vehicle requirements are getting higher and higher, it is imperative to choose a good weight reduction material. Carbon fiber is a very small density of fiber materials, smaller than the density of aluminum, and less than 1/4 of steel, its specific strength and specific modulus in the existing engineering materials is the highest. Compared with the use of steel, aluminum alloys and other traditional metal materials, carbon fiber composite materials used in subway vehicles body, driver's room, equipment compartment, respectively, to reduce the weight of more than 30%, the bogie frame to reduce the weight of 40%, the whole car to reduce the weight of 13%.

2、Strong designability

Carbon fiber products are made of carbon fiber prepreg laminated hot pressing, in the production process can be adjusted by laying a reasonable design to achieve optimal mechanical effect, so as to achieve the customer's desired requirements.

3、Good effect of anti-seismic and energy absorption

Carbon fiber material has the characteristics of energy absorption and anti-vibration, not only to prevent the shadow of stray current, but also to ensure the smoothness of the driving process, in addition, carbon fiber also has the effect of sound absorption, reduce the impact of noise.

4、Excellent corrosion resistance

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

5、Good fireproof performance

Carbon fiber products are made of carbon fiber prepreg laminated hot-pressed, in the production process can be adjusted by laying a reasonable design to achieve optimal mechanical effect, so as to meet the customer's requirements.

  With the improvement of lightweight and low-carbon environmental protection requirements of rail vehicles, carbon fiber composite materials will be more and more used in rail transit vehicles. Its strength and abrasion resistance are better than steel, and it can be used in certain stress stabilization place, which can meet the requirements of using performance and reduce the overall weight.