Refractory fiber can also be called ceramic fiber and aluminum silicate fiber. Ceramic fiber is the main representative of refractory fiber in a broad sense. It is the general term for refractory fibers such as alumina, silica, aluminum silicate and alumina. It also includes carbon fiber, nitride fiber, boride fiber and non-oxide fiber. In a narrow sense, only aluminum silicate foamed or sol fiberized fibers are called ceramic fibers, which are different from other fibers.
In a narrow sense, the ceramic fresh dimension is to take out the molten material formed by Al, O, and Si0 in a thin stream state, and then make it fiberized by blowing and spinning. This method is called the molten fiberization method. Glass fiber, rock wool, slag wool, etc. are basically the same as their production methods, but due to the different composition of the raw materials, their performance is different. The biggest difference in performance is the use of temperature friction. For refractory fiber, its long-term use temperature is 1000"1250C, and its melting temperature is above 1780C. The continuous use temperature of rock wool and slag wool is 600"700, and the continuous use temperature of glass wool (alkali-free glass wool) is less than 380C. , The fiber filaments will shrink and crush sharply beyond their use temperature. For this reason, these materials cannot be used as working linings for high-temperature furnaces.
