Ceramic fiber is a kind of fibrous lightweight refractory material, which has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, low specific heat and mechanical vibration resistance. In particular, under the increasingly strict background of industrial energy conservation and environmental protection regulations in recent years, ceramic fibers that are 10-30% more energy-efficient than traditional refractory materials such as heat-insulating bricks and pouring materials have been used in China more and more widely. The development prospects are very high. Look good.
Ceramic fibers first appeared in 1941. U.S. Babu and Wilcox Company used natural kaolin to melt and inject fibers into the fibers using electric arc furnaces. After entering the 1990s, with the popularization and application of zirconium-containing fibers and polycrystalline alumina fibers, the use temperature was increased to 1000°C to 1400°C. However, due to product quality defects and the backwardness of application technology, the application fields are subject to good methods. Limitations. Such as polycrystalline alumina fiber can not be made into a fiber blanket, single product specifications, mainly scattered cotton, fiber block, although the use of temperature has increased, but the strength is very poor, limiting the scope of use, but also shortened the service life.
The zirconium-containing fiber is a versatile and low-cost aluminum silicate fiber produced by the fusion method and can be used in large quantities as a hot-faced all-fiber lining for laying various thermal kilns. The quality of domestic products in this area And application development is still relatively backward, now there are chromium-containing fibers abroad, the use of higher temperature than zirconium-containing fibers, but there is no domestic report in this regard.
Ceramic fiber plays an important adiabatic fire resistance role in the high-temperature industrial field, but at the same time, it also has great production defects, especially it is inhalable, and it has certain harm to the environment and the human body. At present, a bio-soluble non-quality ceramic fiber has appeared in the adiabatic refractory market, which is a non-polluting environment-friendly material. In the current situation where industrial environmental protection regulations are gradually tightening, pollution-free, refined and multifunctional will be the long-term development direction of ceramic fibers. In particular, the use of new processes and new raw materials to produce high-value-added, high-tech functional fine ceramic fibers will increase the production rate.
In recent years, under the increasingly strict background of industrial energy conservation and environmental protection regulations, ceramic fibers have been used in more than 10-30% of ceramic fiber, which is energy-saving than traditional refractory materials such as heat-insulating bricks and pouring materials. Very optimistic.
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