However, because of the diversification of process technology, and with the continuous development of technology, metal valves also show their own shortcomings. It cannot meet the long-term effective operation of harsh working conditions such as high damage and strong corrosion. Although industrial designers have improved the various materials of the valve structure from the level of process customization, they cannot change the thorny problems such as short service life and easy leakage of metal valves. Therefore, in order to meet the needs of equipment operation, there is an urgent need for a raw material instead of metal materials to solve the corresponding problems in the industry.

        Since the 21 st century, industrial ceramics have entered the field of vision of major industrial enterprises as an excellent wear-resistant material. Many industrial enterprise technicians have found that wear-resistant ceramic materials have many characteristics. For example, the deformation degree of ceramic material is very small, and its bond strength is much higher than that of metal. Generally speaking, the crystalline ion radius of wear-resistant ceramic materials is small, and the compressive strength, bending strength and hardness of wear-resistant ceramic materials are very high. In the past ten years, due to the development of composite materials technology and nanotechnology ceramics, the defects of ceramic ‘ ductility ‘ have been improved, the toughness and compressive strength have been greatly improved, and the application fields have been continuously developed. The wear-resistant ceramic valve is produced. Only in the valve industry, there will be dozens of categories such as ceramic gate valve, ceramic knife gate valve, ceramic slag discharge valve, ceramic check valve and so on, which are made of ceramic materials.