Ceramic brake pads do not contain metal, materials include mineral fiber, aramid fiber and ceramic fiber (because steel fiber will rust, generate noise and dust, so it cannot meet the requirements of ceramic type formula), ceramic type brake pads are cleaner and quiet than other brake pads, has a stable coefficient of friction, good thermal stability, long service life, and provides excellent braking performance without wearing out the metal parts that make up the friction pair with the friction disc.
The ceramic formula does not refer to the formula using ceramic fibers. The criterion for judging whether a formula is ceramic is mainly the performance of the material, but this material does not refer to what raw materials are used, but the performance of the finished product.
Compared with other types of brake pads, ceramic brake pads have the following advantages:
- The biggest difference between ceramic brake pads and traditional brake pads is that there is no metal. The metal in the traditional brake pads is the material that mainly generates friction, and the braking force is large, but the wear is large, and it is prone to noise. After installing the ceramic brake pads, there will be no abnormal clamor (that is, scratching sound) during normal driving. Because the ceramic brake pads do not contain metal components, the metal clamor caused by the friction between the traditional metal brake pads and the brake disc is avoided.
- Stable coefficient of friction. The coefficient of friction is the most important performance index of any friction material, which is related to the braking ability of the brake pads. During the braking process, heat is generated due to friction, and the working temperature increases. The friction material of the general brake pad is affected by the temperature, and the friction coefficient begins to decrease. Friction is reduced in practical applications, thereby reducing braking action. Ordinary brake pad friction materials are immature, and the friction coefficient is too high, causing unsafe factors such as loss of direction control, burning pads, and scratching the brake disc during the braking process. Even when the temperature of the brake disc is as high as 650 degrees, the friction coefficient of the ceramic brake pad is still about 0.45-0.55, which can ensure the vehicle has good braking performance.
- Ceramic has good thermal stability and low thermal conductivity, good wear resistance. The long-term use temperature is 1000 degrees, which makes ceramics suitable for the high-performance requirements of various high-performance brake materials, and can meet the technical requirements of high-speed, safety, and high wear resistance of brake pads.
- Has good mechanical strength and physical properties. Can withstand large pressure and shear force. Before the friction material products are assembled and used, they need to be processed by drilling, assembly and other mechanical processing before they can be made into the brake pad assembly. Therefore, it is required that the friction material must have sufficient mechanical strength to ensure that no damage or chipping occurs during processing or use.
- Has very low thermal decay. Regardless of the first-generation ceramic products of M09 material or the fourth-generation ceramic brake pads of TD58, the vehicle can still ensure good braking performance to ensure safety, and the phenomenon of thermal attenuation of the brake pads is very small.
- Improve the performance of brake pads. Due to the fast heat dissipation of ceramic materials, its friction coefficient is higher than that of metal brake pads in the manufacture of brakes.
- Brake pads will generate instantaneous high temperature when braking, especially at high speed or emergency braking. At high temperature, the friction coefficient of the friction plate will decrease, which is called thermal recession. Ordinary brake pads have low thermal decay, high temperature state and the increase of brake oil temperature during emergency braking, which will delay the braking and even lose the braking effect, and the safety factor is low.
- Among the comfort indicators, car owners are often most concerned about the noise of brake pads. In fact, noise is also a problem that ordinary brake pads cannot solve for a long time. The noise is caused by the abnormal friction between the friction plate and the friction disc. The reasons for the noise are very complicated. The braking force, the temperature of the brake disc, the vehicle speed and the weather conditions may all be the causes of the noise.
In addition, the causes of noise are different in the three different stages of brake initiation, brake implementation and brake release. If the noise frequency is between 0 and 550Hz, the car will not feel it, but if it exceeds 800Hz, the car owner can clearly feel the braking noise.
- Excellent material properties. The high-tech materials such as large-grained graphite/brass/advanced ceramics (non-asbestos) and semi-metals used in ceramic brake pads have the advantages of high temperature resistance, wear resistance, stable braking, repairing damaged brake discs, environmental protection, noise-free and long service life. It overcomes the defects of materials and craftsmanship of traditional brake pads and is the most advanced advanced ceramic brake pads in the world. In addition, the low content of ceramic slag balls and good reinforcement can also reduce the dual wear and noise of the brake pads.
- long lasting. The service life is an indicator that everyone is very concerned about. The service life of ordinary brake pads is less than 60,000 kilometers, while the service life of ceramic brake pads is more than 100,000 kilometers. That’s because the unique formula material used in the ceramic brake pads has only 1 or 2 kinds of electrostatic powder, and other materials are non-static materials, so that the powder will be taken away by the wind with the movement of the vehicle, and will not adhere. It affects the aesthetics of the wheel hub. The life of ceramic materials is more than 50% higher than that of ordinary semi-metals. After using the ceramic brake pads, there will be no scraping grooves (that is, scratches) on the brake disc, which prolongs the service life of the original car brake disc by 20%.