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FOLYSKY（WuHan） LTD.
Alumina ceramic substrate has excellent comprehensive performance, is a very important material in the field of automotive industry, and is more and more widely used in automobiles. For improving the performance of automobiles, reducing fuel consumption and reducing exhaust pollution, ceramic materials have extremely important value. With the continuous development of science and technology, more and more new materials and new processes are used in the research and development and production stage of automobiles, which also makes it possible for people to meet the requirements of lightweight, low-cost, intelligent, economic and reliability of automobiles, and for the use of new materials, alumina ceramic substrate material is one of the best functional materials. Alumina ceramic substrate has a variety of excellent and unique performance, applied in the automobile, to reduce the quality of the vehicle itself, improve the engine thermal efficiency, reduce fuel consumption, reduce exhaust pollution, improve the life of the wearing parts, improve the intelligent function of the automobile has a positive significance.
1. Alumina ceramic substrate used in automotive engines
The alumina ceramic substrate can withstand high temperatures above 1000 degrees Celsius, which promotes the development of new applications in automobiles. For example, to reduce the fuel consumption of diesel engines by more than 30%, it can be said that alumina ceramics are indispensable materials. At present, about 78% of the combustion energy in the gasoline engine is lost in the heat and heat transfer, the thermal efficiency of the diesel engine is 33%, which is very superior compared with the gasoline engine, but more than 60% of the thermal energy is still lost. Therefore, in order to reduce this part of the loss, the combustion chamber is insulated with good thermal insulation ceramic materials, and then the exhaust gas turbocharger and power turbine are used to recover the exhaust energy, which has been proved that the thermal efficiency can be increased to 48%. At the same time, thanks to the use of alumina ceramic substrate, instant fast start of diesel engine will become possible.
Second, aluminum oxide ceramic substrate used in automotive sensors
The requirements for automotive sensors are that they can be applied to the harsh environment unique to automobiles for a long time (high temperature, low temperature, vibration, acceleration, humidity, noise, exhaust gas), and should have small and light weight, good reusability, and wide output range. Aluminum oxide ceramic circuit board heat resistance, corrosion resistance, wear resistance and its potential excellent electromagnetic and optical functions, in recent years with the progress of manufacturing technology has been fully utilized, aluminum oxide ceramic materials made of sensors can fully meet the above requirements.
Third, alumina ceramic substrate used in automotive shock absorbers
The damping device of high class car is an intelligent shock absorber which is successfully developed by using the positive piezoelectric effect, inverse piezoelectric effect and electrostriction effect of alumina ceramic. Due to the use of highly sensitive alumina ceramic components, this shock absorber has the function of recognizing the road surface and can do self-regulation, which can minimize the vibration caused by rough road surface.
In short, alumina ceramic substrate is a kind of ceramic material product under continuous development, but many aspects of raw material preparation, material evaluation and utilization technology have to be solved. At present, alumina ceramic substrate is not widely used in automobile, the main reasons are: complex manufacturing process, high requirements; Due to the strict requirements of alumina ceramic substrate on raw materials, the process is difficult to master, making the performance of each batch of products difficult to maintain uniform; At present, there are not many ceramic circuit board manufacturers that can be skilled in mass production in China, and only a few led by Silitong are not enough to hold up the entire demand side, and more manufacturers are needed to rise in order to push China's special ceramic industry to the peak.
People have good reason to believe that with the rapid development of science and technology, in the future automobile manufacturing industry will have more alumina ceramic substrate, intelligent ceramic products will be introduced and used in the automobile, and will be widely used in automobile production.
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