New Ceramic Valve Improves Sealability of Industrial Management Systems

At present, the valves commonly used in the production of various industries in China are metal valves. The use of metal valves has been used for more than a hundred years. Although the structure and materials have been improved during the period, due to the limitations of the metal materials, the metal valves have become increasingly unacceptable. Wear, strong corrosion and other adverse conditions need. Mainly reflected in the short service life, the leakage has seriously affected the stability of the system operation. Traditional metal valves urgently require radical innovations in materials, design, and manufacturing processes. As a new material for the 21st century, advanced ceramic materials have been taken seriously by more and more scientific workers. Applying it to industrial valves is a bold and beneficial innovation. Ceramic materials have a small amount of deformation and are more than metals. With much higher bonding strength, the crystalline ionic radius of the constituent ceramic materials is generally small, and the high ion-valence and large coordination number determine the tensile strength, compressive strength, elastic modulus, and hardness of the ceramic material. Are very high. However, the inherent and difficult processing of ceramics has limited its application range. In the past ten years, due to the development and progress of the martensitic transformation toughening technology, composite material technology and nano-ceramic concepts, the ceramic brittleness has been greatly improved. Improvement, its toughness and strength have been greatly improved, and the scope of application has been continuously expanding.

In recent years, new types of ceramic materials have been actively used in petroleum, chemical, and mechanical fields. The use of wear resistance and corrosion resistance of ceramics to produce wear-resistant and corrosion-resistant parts replaces metal materials, which is an important aspect of the high-tech materials market in recent years. One of the development directions is to use high-tech new ceramic structural materials to make the sealing and wearing parts of the valve, improve the wear resistance, corrosion resistance, and sealability of valve products, greatly prolonging the service life of valves. The use of ceramic valves can be greatly reduced. The number of maintenance and replacement of valves improves the safety and stability of the supporting equipment operation system, reduces the labor intensity of workers, and saves equipment repair costs. The use of ceramic valves can improve the tightness of industrial piping systems, while minimizing leakage, and will play a positive role in promoting environmental protection. The raw materials for the manufacture of ceramics are wide and the cost is low. Aluminum, carbon, silicon, etc. can be used to produce ceramic materials with superior performance, which can save a lot of metal materials and rare mineral resources. Wear-resistant ceramic valves are mainly used in power, petroleum, chemical, metallurgy, mining, sewage treatment and other industrial fields, especially in the face of high wear, strong corrosion, high temperature, high pressure and other harsh working conditions, but also show its excellent performance. It can meet the high wear, strong corrosion of the use of the environment, especially prominent feature is the long life, its performance and price far better than other similar metal valves. With the continuous development and progress of science and technology, ceramic materials from the formulation, molding, processing and assembly processes and other aspects of technology has become more mature and complete, ceramic valves with its excellent performance more and more people in the industry agree. The use of successful experience in the manufacture of ceramic valves can also be applied to a wider range of engineering fields.