Alumina ceramic is a kind of industrial ceramic material made of alumina as the main material through a specific process. Because the air tightness, corrosion resistance, and mechanical strength of alumina ceramics are far better than those of traditional metal materials, they are very popular and recognized.
Alumina ceramic is a kind of industrial ceramic material made of alumina as the main material through a specific process. Because the airtightness, corrosion resistance, and mechanical strength of alumina ceramics are far better than those of traditional metal materials, they are very popular and recognized.
Alumina ceramics are often further processed into various alumina ceramic parts, and the ceramic valve is one of them. Although the metal valve has been greatly improved through the improvement of structure and materials, it is limited by the characteristics of metal materials, it can not meet the needs of more and more high wear, strong corrosion, and other bad working conditions, and then show short service life, serious leakage, and other problems, which greatly affect the stability of the system operation.
Because the thermal deformation of ceramic materials is very small, lightweight, and has much higher bonding strength than metal, corrosion resistance is excellent, so it can better adapt to high wear, strong corrosion, and other bad conditions, so alumina ceramic valves replace metal valves, from then on, a series of problems mentioned above have been properly solved.
In general, the crystal ion radius of alumina ceramic material is small, and the ion price is high, and the coordination number is large. These inherent properties determine the compressive strength, wear resistance, hardness, and so on.
Although the “brittleness” of ceramic materials limits its scope of application and it is difficult to carry out precision machining, due to the development and progress of martensitic transformation toughening technology, composite technology, and the concept of nano-ceramics, alumina ceramics have been greatly improved, and their toughness and strength have also been greatly improved.
In the meantime, with the progress of grinding technology, alumina ceramic valves can be better formed, and alumina ceramic products are more widely used in petroleum, chemical, machinery, and other fields, and become one of the ideal substitutes for traditional metal valves.
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