一、Product Description：
Polycrystalline mullite fiber (PMF)JH polycrystalline alumina fiber is currently at home and abroad the latest ultra-lightweight high-temperature fire-resistant fiberthe whole system Al2O3-SiO2 ceramic fibers in two different productsusing temperature 1500-1700 degreeshigher than the glassy fiber 200 - 400 degrees. It can be widely used in metallurgymachineryelectronicsceramicschemicalsaerospace and other high-temperature industrial furnaces and other thermal equipmentlined with insulation. In order to achieve energy efficiency increaseextend furnace lifethe purpose of improving the working environment. Appearance whitesmoothsoftflexiblejust like cotton.
二、Features：
Polycrystalline mullite fiber is a unique order exists in the form of Mullite phase polycrystalline refractory fibersmanufacturing process complicatedhigh technologyin foreign countries and only a few developed countries to produce this productsuch as the United States The silicon carbide companyBritains ICI (ICI) and Japanand Germanyseveral different companies. Polycrystalline mullite fiber and glass fiber has a very different state of the system to take technologyit is the use of chemical "colloid Law" Preparationand is based on the formation of single crystal mullite (Al2O3SiO2) chemical formulachemical composition yes: AL2O3 72%SiO2 28%.
The principle is soluble aluminumsilicon made with a certain viscosity of colloidal solutionusing conventional methods of liquid silk rejectionand then by high-temperature heat treatment to complete crystalline phase transitionobtained mullite fiber. The obtained fiber cotton (bulk) can be used for high-temperature parts of sandwich fillerwill loose cotton wet vacuum forming can be obtained PMF fiber series of varietiessuch as panelscarpetbrickmarked differences prefabricated partsmodulescombined components.
Polycrystalline alumina fibers are relative to the main form of corundum crystal fiberswhich use the same chemical "colloidal method" system checkthe manufacturing process more complicated
Chemical composition is: AL2O395%SiO25%. The obtained fiber cotton (bulk) can be used wet shape the way the vacuum produced platesslabsstandard prefabricated components |
