New abrasion
Present, China's various industries valves commonly used in the production of metal valves, metal valves for use has been a century of history, during which although improved through structure and materials, but the metal itself by the conditions, more and can not adapt to high wear, high corrosion bad condition, needs. Mainly in short service life, greatly affected the disclosure of a serious system stability. Traditional metal valves needed from materials, design and manufacturing processes, etc. overhaul. Advanced ceramic materials as the twenty-first century, new materials, has been more and more valued by scientists, it is a bold used in industrial valves and useful innovation.
Deformation of ceramic materials is very small, much higher than the metal with a combination of strength, in general, ceramic materials composed of crystal ionic radius, and ion price high, a large coordination number, the nature of ceramic materials tensile strength, compressive strength, elastic modulus, hardness and so very high. Ceramic itself, however, the "brittle" and difficult to machine limits its scope of application of the last decade, due to martensitic transformation toughening technology, composite materials and nano-ceramic Branch Technical development of the concept and progress has been made ceramics " brittle, "has been greatly improved, its toughness and strength has been greatly improved, ever-expanding range of applications.
Recent years, the new ceramic materials in petroleum, chemical, mechanical, and other fields is very active, using ceramic wear resistance, corrosion resistance and wear-resistant corrosion-resistant parts made of metal materials to replace the Department, in recent years high-tech materials One of the important development direction of the market.
Ceramic valve has a huge social and economic benefits:
1. Using high-tech ceramic structural materials of new valve sealing parts and wearing parts, valve products increased wear resistance, corrosion protection and sealing, greatly extended the life of the valve.
2. The use of ceramic valve can replace a large number of lower valve repair, improve equipment operation supporting system security, stability, reduce labor intensity, saving equipment repair costs.
3. Ceramic valves can increase the tightness of industrial piping systems, while able to prevent disclosure of the maximum of environmental protection will play a positive role in pushing forward.
4. Manufacture a wide range of raw materials ceramic, low cost, aluminum, carbon, silicon and other common factors can not create superior performance ceramic materials, can save a lot of metal materials and scarce mineral resources.
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, high corrosion, high temperature, high pressure and other adverse conditions, but also demonstrated its excellent performance. It can meet the high wear and tear, the use of highly corrosive environment, in particular outstanding feature is the long service life, its cost performance is far better than other comparable metal valves. With the continuous development of science and technology and progress of, ceramic materials from the formulation, molding, machining and assembly process and other aspects of the technology is more mature and complete, its outstanding performance ceramic valve increasingly recognized by the industry. Using the successful experience of manufacturing ceramic valves can also be applied to a wider range of engineering fields.
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