Potential applications of alumina boats in automobiles

　　 Alumina boat It can reduce the weight of the car, improve engine thermal efficiency, reduce fuel consumption, reduce exhaust pollution, extend the service life of wearing parts, and improve the intelligent functions of the car.

　　For example, diesel engines can reduce fuel consumption by more than 30%. It can be said that alumina boats are an indispensable material. Currently, gasoline engines lose about 78 points of combustion energy in heat transfer and heat transfer. The thermal efficiency of diesel engines is 33 points, which is better than gasoline engines, but there are still more than 60 points of heat loss. Therefore, in order to reduce this loss, heat-insulating ceramic materials with good heat insulation performance are used around the combustion chamber for heat insulation, and then the exhaust energy is recovered by the exhaust turbocharger and power turbine. At the same time, due to the use of its substrate, the diesel engine can start quickly and instantaneously.

　　The requirements for automotive sensors are that they can be used for a long time in harsh automotive environments (high temperature, low temperature, vibration, acceleration, humidity, noise, exhaust gas, etc.), and the sensors require small size, light weight, good reusability, and a wide output range. In recent years, with the development of manufacturing technology, Alumina boat The material has been fully utilized for its heat resistance, corrosion resistance, wear resistance, and potentially excellent electromagnetic and optical properties. Sensors made from it can fully meet the above requirements.

　　The automotive shock absorber is an intelligent shock absorber developed by comprehensively utilizing the positive piezoelectric effect, inverse piezoelectric effect, and electrostrictive effect of the alumina boat. Due to the high sensitivity of its components, the shock absorber has the function of identifying the road surface and self-adjusting, which can effectively reduce vehicle vibration caused by uneven road surfaces.

　　The carrier of the automotive exhaust catalyst is cordierite honeycomb ceramic, which is coated with alumina and alumina doped with rare earth elements on its surface. Because automotive exhaust gases contain toxic nitrogen oxides and hydrocarbons, most gasoline-powered vehicles are equipped with automotive exhaust treatment devices. Alumina boats are widely used in the field of catalyst carriers due to their excellent physicochemical properties. Assuming that about one-fifth of the vehicles in use need to replace the catalyst every year, the market space is huge. With the explosion of the new energy industry, especially new energy vehicles, alumina boats will surely achieve great achievements in the new energy field due to their excellent physicochemical properties.

　　 Alumina boat It has good comprehensive performance, and the application of the mouth and tail is relatively mature. Alumina boat raw materials are abundant and inexpensive, with high strength and hardness, good thermal shock resistance, good insulation, good chemical stability, and strong adhesion to metals. Currently, the main material of ceramic substrates is Al2O3. The Rockwell hardness of alumina ceramic is hra80-90. Second only to diamond, far higher than wear-resistant steel and stainless steel. The Powder Metallurgy Institute of Central South University found that the wear resistance of alumina boats is 266 times that of manganese steel and 171.5 times that of high-chromium cast iron. The density of alumina boat is 3.5g/cm3. Only half that of steel, which can greatly reduce the equipment load.

　　Our company is a manufacturer of high-purity alumina ceramic tubes, and our products include Alumina boat high-temperature crucibles, ceramic crucibles, muffle furnace corundum tubes, etc. Please feel free to contact us if you need them.