How are carbon ceramic brake discs produced using black silicon carbide powder?
Carbon ceramic brake disc is a kind of brake disc made of carbon fiber reinforced black silicon carbide composite material. The main components of the carbon ceramic brake disc matrix are black silicon carbide (black SiC), silicon (Si) and graphite. The role of carbon fiber provide the mechanical strength and fracture toughness required for the material, while the silicon carbide in the matrix determines the hardness of the composite material, and silicon and graphite improve the friction coefficient of the brake disc.
Advantages of carbon ceramic brake discs are mainly reflected in the following aspects:
1, The loss is extremely low. Compared with traditional metal brake discs, carbon ceramic brake discs have extremely low losses during the friction process, this is its biggest advantage.
2, Service life, the new carbon ceramic brake disc is extremely durable, and its ultimate service life is even difficult to fully test within the life cycle of a vehicle.
3, Carbon ceramic brake discs not only have superior physical properties, but also have extremely high mechanical strength, can withstand great shear forces and pressures, and also have excellent heat dissipation properties. In terms of braking performance, carbon ceramic brake discs also perform well and are resistant to high temperatures. It can select sheets with different friction coefficients according to braking needs, and its friction coefficient will not decrease due to the increase in operating temperature. In contrast, the friction coefficient of ordinary metal brake discs will change with temperature changes after friction generates heat. Especially when driving on steep slopes or when frequent braking is required, the stable braking performance of carbon ceramic brake discs is even more outstanding.
Finally, the most notable feature of carbon ceramic brake discs is their extremely lightweight design. Compared with ordinary iron discs, its weight is only one-third of the latter. A single brake disc can reduce the unsprung weight by up to 10 kilograms. This lightweight design not only improves the handling feel, but also helps reduce fuel and power consumption.
Manufacture progress for carbon ceramic disc:
1. Raw material preparation: Select high-purity black silicon carbide /carbon fiber and ceramic powder as the main raw materials, and screen, crush, dry and other treatments to ensure the quality of the raw materials.
2. Material mixing: Mix the carbon fiber and ceramic powder in a certain proportion, add an appropriate amount of binder and lubricant, and mix them to make them evenly dispersed.
3. Molding: Pour the mixture into the mold, mold it by pressing or injection molding, and perform initial compaction.
4. Hardening and sintering: Put the molded carbon ceramic brake disc into a special furnace for high-temperature sintering treatment to make it react at high temperature and achieve a certain hardness and strength.
5. Machining: The sintered brake disc is machined, including turning, cutting and other processes, to make its surface smooth and flat, and meet the size and shape required by the design.
6. Surface treatment: The surface of the brake disc is treated by spraying, coating and other methods to improve its wear resistance, corrosion resistance and other properties, and increase the friction coefficient.
7. Quality inspection: The carbon ceramic brake discs produced are strictly inspected for quality, including appearance inspection, size inspection, hardness test, friction coefficient test, etc., to ensure the quality of the products.
8. Packing and delivery: The carbon ceramic brake discs that meet the quality requirements are packaged and sorted out for delivery to facilitate transportation and sales.
The above is the general production process of carbon ceramic brake discs. The specific production process may vary and be adjusted according to different production equipment and process requirements.
Black silicon carbide power 10um:
