Crystal fiber manufacturersSaid, as we all know, polycrystalline mullite fiber is a new type of ultra-light high temperature refractory fiber at home and abroad. It is one of the Al2O3-SiO2 ceramic fibers, and the use temperature is 1500-1600 degrees, which is 200-300 degrees higher than glass fiber.

Crystal fiber manufacturers

Crystal fiber manufacturers say that polycrystalline mullite fiber is a unique polycrystalline refractory fiber, with mullite crystal phase, complex manufacturing process, high technology content. It has a completely different preparation process from glass fiber and is prepared by chemical "colloid method. The chemical formula is based on the formation of single crystal-mullite, and the chemical composition is: Al2O 3 372%,SiO 2 228%. The principle is that soluble aluminum and silicon are made into a colloidal solution with a certain viscosity, the liquid is spun by conventional methods, and then the crystal phase is transformed by high temperature heat treatment to produce mullite fibers. The prepared fiber cotton (bulk) can be used as a filler for interlayers at high temperatures, as well as PMF fiber series varieties, such as fiberboard, fiber blanket, fiber module, etc. It can be prepared by wet vacuum forming of bulk cotton.

Polycrystalline mullite fiber has small shrinkage, low thermal conductivity and excellent quality. It is a high-grade sintering experimental furnace insulation material.Good choice, The constant use temperature is 1700,1800, and 1900 respectively.

　　Crystal fiber manufacturersIt is said that polycrystalline mullite fiber products are porous products made of fibers with a diameter of 2-5 m interwoven with mullite fibers. Even if the temperature changes sharply, it will not produce structural stress, it will not peel off in the case of rapid cooling and heat, and it can resist bending, twisting and mechanical vibration. Therefore, it is not limited by any sudden temperature change, and it will not crack or even peel off after several times of rapid cooling and rapid heating. Also, the refractory fiber product itself is a flexible and resilient porous material, and the expansion of the individual fibers is absorbed by the fibers themselves.

Therefore, when using polycrystalline mullite fiber, the problem of leaving expansion joints and baking can be completely ignored, and the expansion stress of fiber products does not need to be considered in the steel structure of the furnace, so that the structure becomes lighter and the amount of steel used in the furnace is saved.

Crystal fiber manufacturers said that polycrystalline mullite fiber can be used for a long time below 1600 temperature thermal equipment insulation materials, such as silicon carbide electric furnace, silicon molybdenum electric furnace, all kinds of steel heating furnace, mechanical forging furnace. It can significantly improve the thermal efficiency of the equipment, greatly save energy, improve productivity and improve product quality.

Polycrystalline mullite fiber can be used for heat insulation of various high-temperature industrial kilns; ceramic kilns; mechanical metallurgy heating furnaces; hot surface lining of heat treatment furnaces and other industrial furnaces; high-temperature fire and flame insulation; doors, kiln cars, expansion joints And other insulation materials; heat insulation of glass furnaces.

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