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Is the sealing performance of the ceramic valve good?

2021-08-21

At present, metal valves are commonly used in the production of various industries in our country. Metal valves have been used for hundreds of years. Although the structure and materials have been improved during this period, they are more and more unable to adapt to the conditions of the metal materials. The needs of harsh working conditions such as wear and strong corrosion. It is mainly reflected in the short service life and serious leakage which greatly affects the stability of system operation. Traditional metal valves are in urgent need of thorough innovation in terms of materials, design and manufacturing processes. As a new material in the 21st century, advanced ceramic materials have been valued by more and more scientists. Applying it to industrial valves is a bold and beneficial innovation.
The amount of deformation of ceramic materials is very small, and the bonding strength is much higher than that of metals. Generally, the ionic radius of the crystals composing ceramic materials is small, and the ion electricity price is high, and the coordination number is large. These properties determine the tensile strength, Compressive strength, elastic modulus, hardness, etc. are all very high. However, the "brittleness" and difficult processing of ceramics limit its application range. In the past ten years, due to the development and progress of martensitic transformation and toughening technology, composite material technology and nano-ceramic concepts, ceramics have become " "Brittleness" has been greatly improved, its toughness and strength have been greatly improved, and the scope of application has been continuously expanded.
In recent years, the application of new ceramic materials in petroleum, chemical industry, machinery and other fields is very active. The use of ceramic wear resistance and corrosion resistance to make wear-resistant and corrosion-resistant parts instead of metal materials has become an important market for high-tech materials in recent years. One of the development directions.
Ceramic valves have huge social and economic benefits:
1. The use of high-tech new ceramic structural materials to make the sealing parts and vulnerable parts of the valve improves the wear resistance, corrosion resistance and sealing performance of the valve product, and greatly extends the service life of the valve.
2. The use of ceramic valves can greatly reduce the number of valve maintenance and replacement, improve the safety and stability of the supporting equipment operating system, reduce the labor intensity of workers, and save equipment repair costs.
3. The use of ceramic valves can improve the tightness of the industrial piping system, and at the same time can prevent leakage to the maximum extent, which will play a positive role in promoting environmental protection.
4. The raw materials for manufacturing ceramics are wide and the cost is low. The use of aluminum, carbon, silicon and other common elements can 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 electric 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, showing its excellent performance. It can meet the use environment of high wear and strong corrosion, and its outstanding feature is its long service life, and its performance-to-price ratio is far superior to other similar metal valves. With the continuous development and progress of science and technology, ceramic materials have become more mature and complete in terms of formulation, molding, processing and assembly technology. Ceramic valves are increasingly recognized by the industry due to their excellent performance. The successful experience of making ceramic valves can also be applied to a wider range of engineering fields.

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