Carbon fiber, referred to as CF, is actually a kind of fiber material containing more than 95% carbon. That is to say, the main component of carbon fiber is carbon. The organic fibers such as flake graphite microcrystalline are stacked along the axial direction of the fibers, and then carbonized and graphitized to make microcrystalline graphite material.
Light weight
The results show that when the weight of car body is reduced by 10%, the fuel consumption is reduced by 6% ~ 8%, the emission is reduced by 5% ~ 6%, the acceleration performance of 0-100 km / h is improved by 8 ~ 10%, and the braking distance is shortened by 2 ~ 7m. And the lightweight body can also improve the handling stability of the car.
The biggest advantage of carbon fiber is that it weighs less than 1 / 4 of steel and is lighter than aluminum. It is a perfect material and can achieve "lightweight". It is 50% lighter than steel and 30% lighter than aluminum. If carbon fiber composite material is used to replace the steel part of the car, the car body weight can be reduced
high strength
Carbon fiber is 20 times stronger than iron fiber. It is the only material with strength unchanged at high temperature of 2000 ℃. Its excellent impact absorption capacity is 4-5 times stronger than ordinary metal materials. Carbon fiber can bear more force than steel with the same cross section.
Better transmission efficiency can be obtained by using carbon fiber on half shaft and transmission shaft. In addition, different from metal fiber, carbon fiber has the characteristics of anti fatigue and anti-corrosion. Carbon fiber components in automobiles have longer service life under normal use
However, one of the major disadvantages of carbon fiber materials is poor plasticity, which is mainly due to the ductility of metal materials such as steel, which can produce large deformation without damage, while carbon fiber composites do not have this characteristic. Therefore, after a strong impact, it will be broken, can not be repaired, can only be replaced, and the cost is higher. That's why only super
In a word, the performance of carbon fiber material is better than that of steel material. Under the same conditions, carbon fiber body can bring all-round improvement to car safety, handling, fuel economy, durability, etc. Waiting for the price of carbon fiber material to fall, family cars can also "afford" this top material.
