polycrystalline fiberThe manufacturer thinksPolycrystalline mullite fiber is a new type of ultra-light high-temperature refractory fiber, which is aAl2O3-SiO2 ceramic fiber. It is made of soluble aluminum salt and silicon salt into a colloidal solution with a certain viscosity, and the colloidal solution is formed into fibers by high-speed centrifugal spinning, and then processed at high temperature to complete the crystal phase transformation.

polycrystalline fiber

　Polycrystalline fiber manufacturers believe that polycrystalline mullite fiberThe manufacturing process is: first inject a viscous colloidal solution, low-temperature spinning to form fibrils, and then through high-temperature firing to make the atoms in the fibrils orderly arrangement, microstructure crystallization, metastable glass state elimination, the use of the filament temperature increased nearly.300. The heat resistance of the fibers increased with increasing Al2O3 content. When the content of Al2O3 is more than 72%, the service temperature of the fiber is greatly increased, which can exceed 1 400.

　　polycrystalline fiberManufacturers believe that polycrystalline mullite fiber morphology, loose fiber cotton at high temperatures can be used as a sandwich filler. Loose cotton can be made into various desired patterns by wet vacuum forming, such as boards, felts, bricks, preforms and modules. Because of its low heat capacity, low thermal conductivity, low bulk density, good heat sensitivity and strong heat dissipation capacity, it is a high-efficiency, light-weight and energy-saving material for steel rolling heating furnace.

　　Polycrystalline fiber manufacturers believeIn fibrous porous ceramics, the pores are formed by a skeleton between the fibers, and the contact points between the fibers are connected by a binder. Therefore, the firmness of the bond plays a decisive role in giving full play to the excellent performance of the ceramic fiber substrate and the performance of the product. The application of polycrystalline mullite fiber in the lining of regenerative heating furnace can significantly improve the "thermal inertia" of the regenerative heating furnace and reduce the fuel consumption of the heating furnace. On the other hand, the service life of fiber lining in the field can only be maintained for about two years, indicating that the construction technology of fiber lining needs to be further improved and explored in order to strive for the ideal service life of fiber lining.

polycrystalline fiberManufacturers believe that polycrystalline mullite fiber products can be used for a long time below 1600 high temperature thermal equipment insulation materials, such as silicon carbide electric furnace, silicon molybdenum electric furnace, a variety of steel heating furnace, mechanical forging furnace. Can significantly improve the thermal efficiency of equipment, greatly save energy, improve productivity and product quality. It can be used for heat insulation of various high-temperature industrial kilns; ceramic kilns; and mechanical metallurgy heating furnaces; heat lining of heat treatment furnaces and other industrial furnaces; high-temperature fire barriers; insulation materials such as doors, kiln cars, expansion joints; glass Furnace insulation.

The above are some knowledge points about polycrystalline fibers. I hope you can seriously study and understand the relevant knowledge, choose the products and equipment suitable for your needs, and ensure your own benefits. If you want to know more details, you can contact us.