Alumina ceramics are a kind of ceramics mainly made of alumina Material, an industrial ceramic material made through a specific process. Because alumina ceramics far outperform traditional metal materials in terms of conductivity, high temperature resistance and mechanical strength, they are very popular and recognized! Therefore, industrial alumina ceramics are mainly used in thick-film integrated circuits.
Alumina ceramics are often further processed into various alumina ceramic parts, and valves are one of them. Although metal valves have undergone improvements in structure and materials, However, due to the limitations of the characteristics of metal materials, it cannot adapt to the needs of increasingly severe wear and corrosion, and then exhibits problems such as short service life and serious leakage, which greatly affects the stability of the system operation. Because ceramic materials have very small thermal deformation, are lightweight, and have much higher bonding strength and corrosion resistance than metals Excellent, so it can better adapt to harsh working conditions such as high wear and strong corrosion. So alumina ceramic valves replace metal valves! Since then, the above series of problems have been properly resolved.
Generally, the crystals that make up alumina ceramic materials have small ionic radius and high ion electricity price. The number of digits is large, and these intrinsic properties determine the compressive strength, wear resistance, hardness, etc. of ceramic materials. Although the "brittle" nature of ceramic materials limits its application scopeand difficult to perform precision machining, but Due to the development and advancement of martensite transformation toughening technology, composite material technology and nanoceramic concepts, alumina ceramics have been greatly improved, and their toughness and strength have also been greatly improved.
In addition, grinding processing technology has also improved, allowing alumina ceramic valves to be better formed, and alumina ceramic products are more widely used in petroleum, chemical industry, machinery and other fields, becoming traditional metal valves One of the ideal substitutes.
