Product description: Alumina fiber is one kind of ingredient for polycrystalline alumina mass inorganic fiber, its manufacturing process is complex, with high content of science and technology, and only a handful of developed countries abroad to produce this product, its use high-tech "colloid method" of craft making, will be made with certain viscosity salt soluble aluminum, silicon gel, the spun into fiber embryo body, and then after dehydration, drying, and in the process, such as high heat treatment crystallization into Al - Si polycrystalline alumina fiber, its main crystal phase is mainly for corundum and a small amount of mullite phase, chemical composition is + SiO25 Al2O395 %, classification of temperature of 1700 ¡æ, melting point 1840 ¡æ, the fiber diameter of 3-5 um, filament length for 10-150 - mm, with a white appearance, smooth, soft, elastic, especially such as absorbent cotton, alumina fiber cotton with a variety of forming process can be made into: alumina fiber, alumina fiber blanket, alumina fiber module, alumina fiber paper, alumina fiber furnace, alumina and other abnormal conditions, product has good heat stability, and its thermal conductivity is 1/6 of the ordinary firebrick, energy-saving rate up to 15-45%. Second, the product features: Low thermal conductivity, low heat shrinkage rate and low heat capacity, good chemical stability, can be in acid environment, oxidizing atmosphere, reducing atmosphere and vacuum conditions used, the alkaline environment also has certain corrosion resistance, but vulnerable to lead vapor and vanadium pentoxide erosion. Three, product application: Products are mainly used for all kinds of heat treatment furnace iron and steel industry, petrochemical industry, ceramic firing kiln heat furnace lining cracking furnace, furnace, etc, in the energy saving effect is remarkable. The intermittent operation of the kiln can dramatically increase the product yield. In addition, it can be used as catalyst carrier in chemical industry, known as the alumina carrier. Nuclear reactors and the shuttle's thermal insulation materials, light alloy reinforced material, etc. Four, product physical and chemical indicators:
| Project/name | Classification Temperature (¡æ) | Melting point (¡æ) | Color | Bulk density kg/m3 | Texture | Chemical component % | | Al2O3 | Al2O3+SiO2 | | T-1700 Cotton fiber | 1700 | 1840 | white | 80 | Alumina fiber | 95 | 99.5 |
Note: technical data of the products is by testing standards adopted by the average, will be within a certain range of fluctuation, the data do not represent the quality of the product to ensure the data. Five, the commonly used specifications of products: 5/10 kg/piece |