Special ceramics There are several types of zirconia ceramics and alumina ceramics. Their mechanical The performance is particularly superior, so it can be processed into automobile parts. The following is a detailed introduction to the application of special ceramics in automobile parts.
1. Application of special sensitive ceramics in automotive sensors
The requirement for automotive sensors is that they can be used in the harsh environments unique to automobiles (high temperature, low temperature, vibration, acceleration, moisture, noise, exhaust gas) for a long time, and should be small and lightweight. quantity, good reusability, and wide output range. Ceramics are heat-resistant, corrosion-resistant, wear-resistant and have potentially excellent electromagnetic and optical properties. They have been fully utilized with the advancement of manufacturing technology in recent years. Sensors made of sensitive ceramic materials can fully meet the above requirements.
2. Application of ceramics in automobile brakes
Ceramic brakes are manufactured on the basis of carbon fiber brakes. A carbon fiber brake disc is initially composed of carbon fiber and resin. It is pressed into shape by a machine. It is then made into a ceramic brake through several processes such as heating, carbonization, heating, and cooling. The hardness of the carbon silicon compound surface of the ceramic brake is close to that of diamond. The disc The internal carbon fiber structure makes it strong, impact-resistant and corrosion-resistant, making the disc extremely wear-resistant. At present, this kind of technology is not only used in F1 racing cars, but also in super civilian sports cars, such as Mercedes-Benz's CL55 AMG.
3. Application of ceramics in automotive shock absorbers
The vibration damping device of luxury cars is an intelligent damper successfully developed by comprehensively utilizing the positive piezoelectric effect, inverse piezoelectric effect and electrostrictive effect of sensitive ceramics. Due to the use of highly sensitive ceramic components, this kind of The shock absorber has the function of identifying the road surface and self-adjusting, which can minimize the vibration of the car caused by rough road surfaces.
4. Application of ceramic materials in automotive technology
In recent years, ceramic technology, which is widely used in aerospace technology, has begun to be applied to automobiles. The advantages of this technology are good thermal insulation effect, ability to withstand high temperatures and high pressures, mature technology, and stable quality. In order to achieve the goal of low heat dissipation, the engine combustion chamber components, such as the piston top, can be sprayed with zirconium oxide, and the cylinder liner can be sprayed with zirconium oxide. The engine after this treatment can reduce heat loss, reduce the weight of the engine itself, reduce the size of the engine, and reduce fuel consumption.
5. Application of smart ceramic materials in automobiles
Smart ceramic materials as a classification of special ceramic products, including materials used in automobile manufacturing that are sensitive to the environment and can respond sensitively to environmental changes, have now become a and the focus of research in engineering fields.
