What are the advantages of alumina ceramic valves compared to metal valves?
What are the advantages of alumina ceramic valves compared to metal valves?
Alumina ceramics is an industrial ceramic material that uses alumina as the main material and is manufactured through a specific process. Because alumina ceramics far outperform traditional metal materials in terms of conductivity, high temperature resistance and mechanical strength, they are 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. Valves are one of them. Although metal valves have been greatly improved through structural and material improvements, they are limited by the characteristics of metal materials and cannot adapt to more and more The requirements of severe working conditions such as high wear and strong corrosion, which in turn show short adaptability life, serious leakage and other problems, greatly affect the stability of system operation.
Because ceramic materials have small thermal deformation, light weight, and have much higher bonding strength than metals, and excellent corrosion resistance, they can better adapt to harsh conditions such as high wear and strong corrosion. Therefore, alumina ceramic valves have replaced metal valves.
In general, the ionic radius of the crystals that make up the alumina ceramic material is small, and the ion price is high, and the coordination number is large. These internal properties determine the ceramic material's compressive strength, wear resistance, hardness, etc. Although the “brittleness” of the ceramic material itself limits its application range and is difficult to perform precision processing, the development and progress of martensitic transformation toughening technology, composite material technology and nano-ceramic concepts have made alumina ceramics greatly improved. Improvement, its willfulness and strength have also been greatly improved.
In addition, grinding processing technology has also improved, making alumina ceramic valves can be better shaped, and alumina ceramic products are more widely used in petroleum, chemical, machinery and other fields. Become one of the ideal substitutes for traditional metal valves.
