Să vorbim mai întâi despre discurile de frână.Discuri de frânăsunt în general împărțite în discuri ventilate de mijloc, discuri ventilate perforate și discuri de frână ceramice. După cum sugerează și numele, discul de ventilare central este gol în interior și aerul rece poate trece prin mijloc pentru a se răcori. Este folosit în general pentru roata din fațădiscuri de frână of civil vehicles. Perforated ventilating plate Perforated ventilating plate is to perforate the surface of the ventilating plate to ensure air circulation to the greatest extent and reduce heat attenuation. The perforated ventilating plate is one level higher than the ventilating plate. Ceramic discuri de frână are not ordinary ceramics, but reinforced composite ceramics composed of carbon fiber and silicon carbide at a high temperature of 1700 degrees. The weight of the ceramic disc is less than half of the ordinary cast iron disc. For example, the SLR MCIAREB with ceramic brakes has a front wheel brake disc with a diameter of 370mm but a weight of only 6.4 kg. The CL-CLASS, which uses ordinary discuri de frână, has a front disc diameter of 360mm but weighs up to 15.4 kg. Although the ceramic brake disc has excellent braking performance, its price is very expensive. For example, the optional price on high-performance sports cars of Porsche and Audi is more than 100,000 yuan.
Să vorbim despre
plăcuțe de frână again. Generally divided into asbestos type plăcuțe de frână, semi-metal type plăcuțe de frână, low metal type plăcuțe de frână, ceramic type
plăcuțe de frână, NAO (non-asbestos organic matter) type plăcuțe de frână. The so-called asbestos-type plăcuțe de frână are the earliest plăcuțe de frână used at low cost and easy to manufacture. Early and common use. However, asbestos materials have been confirmed by the medical community to be carcinogens and their use is now banned. From the appearance of semi-metal plăcuțe de frână, it has fine fibers and particles, which can be easily distinguished from asbestos type and NAO type. Compared with traditional brake materials, it mainly uses metal materials to increase the strength of the
plăcuțe de frână.At the same time, temperature control and heat dissipation capabilities are also superior to traditional materials. However, because the material of the brake pad contains more metal components, especially in a low temperature environment, excessive braking pressure will cause the surface between the brake disc and the brake drum to wear and produce noise. From the appearance of low-metal plăcuțe de frână, low-metal plăcuțe de frână are somewhat similar to semi-metal
plăcuțe de frână, with fine fibers and particles. The difference is that they have lower metal content than semi-metal plăcuțe de frână. Ceramic plăcuțe de frână The plăcuțe de frână of this formula use new ceramic materials with low density, high temperature resistance and wear resistance. It has the advantages of no noise, no dust, no corrosion to the hub, long service life, and environmental protection, but the price is higher. As for the NAO (non-asbestos organic matter) plăcuțe de frână, it should belong to the legendary artifact. It has the advantages of no dust pollution, low wear, low noise, and the service life is significantly extended.
