Recently, the news about brake failure of Tesla electric car is overwhelming, which makes many car owners pay more and more attention to the safety of car brake system. The material and technology of the brake pad determine whether it is effective and safe. Can the carbon fiber brake pad in recent years improve the brake safety?
Brief introduction of carbon fiber brake pads
Carbon fiber brake pad is a new type of car brake pad made of carbon fiber composite material with high temperature and high pressure. Compared with steel brake pads, the manufacturing process of carbon fiber brake pads is more disordered and the physical properties are more prominent. It is a popular car product in recent years.
What are the advantages of carbon fiber brake pads?
1. Energy saving: the density of carbon fiber brake pad is about 1.8g/cm3, which is about 1 / 4 of that of steel brake pad, and the overall weight of carbon fiber brake pad is lighter. When applied to the car brake system, it can not only improve the braking efficiency, but also reduce the loss.
2. Good braking performance: the carbon fiber brake pad has high strength, it will pull out a more stable braking curve in the car braking process, and accept more thermal impact caused by braking conflict.
3. Low noise: under the emergency braking of car, the strong conflict between brake pad and braking equipment will cause greater noise, especially when braking at high speed. The loss factor of acoustic oscillation attenuation of carbon fiber is 0.024 ± 008, in the process of emergency braking, the noise is very small.
4. Low wear rate: it is found that under dry grinding condition, if the relative wear of steel / carbon fiber composite is 1, the wear rate of carbon fiber composite is 10, while that of steel / steel composite is 5000. Carbon fiber brake pads with low wear rate, extend the service life of the brake pads, but also reduce the repair frequency of the brake pads.
Are carbon fiber brake pads safe?
The wear rate of carbon fiber brake pad is lower than that of steel brake pad, but its wear resistance is not particularly high. Therefore, many car parts manufacturers are testing new methods, such as adding other materials, such as ceramics, into carbon fiber composite materials to make carbon fiber ceramic brake pad, which greatly improves the wear resistance and makes the brake pad more durable and safer.
