1800 Alumina High Temperature Fiber Bulk

1800 Alumina High Temperature Fiber Bulk

Alumina fiber is a polycrystalline inorganic fiber whose main component is alumina. The main crystal form can be γ-, δ-, θ-, α-alumina. Usually it also contains about 5% silica. Stabilize the crystal phase and suppress the growth of crystal grains at high temperatures....

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Alumina fiber is a polycrystalline inorganic fiber whose main component is alumina. The main crystal form can be γ-, δ-, θ-, α-alumina. Usually it also contains about 5% silica. Stabilize the crystal phase and suppress the growth of crystal grains at high temperatures. Alumina fiber is one of the latest ultra-light high-temperature insulation materials at home and abroad. It uses high-tech "sol-gel" method to make soluble aluminum and silicon salt into colloidal solution with a certain viscosity. Centrifugal twisting into fiber embryo body, and then transformed into Al-Si alumina polycrystalline fiber through dehydration, drying and medium-high temperature heat treatment and crystallization, the main crystal phase is mainly corundum phase and a small amount of mullite phase, chemistry The composition is Al2O3 (95%) + SiO2 (5%), the fiber diameter is 3-7um, the length of the monofilament is 10-150mm, the appearance is white, smooth, soft and elastic, especially like absorbent fiber, which is composed of crystal material and fiber. The material characteristics are integrated, the temperature is 1450°C-1600°C, the melting point is 1840°C, and the heat resistance is good. The thermal conductivity is 1/6 of the ordinary refractory brick, the bulk density is only 1/25, and the energy saving rate is up to 15-45%.

Alumina fiber product description:

High-temperature, lightweight crystal fiber and products, without any binder or other components, can be used up to 1600 ° C, and can maintain its original temperature under oxidizing atmosphere, neutral atmosphere or partial reduction atmosphere for a long time. Its toughness, strength, softness and fiber structure, without slag ball, has a particularly remarkable thermal insulation performance. It is the crystallization of high-tech industrialization.

Technical characteristics:

100% single mullite crystal phase, the highest temperature can reach 1600 °C, low thermal conductivity, low heat storage, good heat shock resistance, high sound absorption, good sound absorption, stable chemical resistance, and resistance to corrosion, below 1600 °C. Uniform fiber diameter

Applications:

Kiln lining or lining heat treatment kiln ceramic rapid firing kiln door, closed furnace cover high temperature filter pad heating furnace, soaking furnace application field affects metallurgy, chemical industry, machinery, ceramics, electronics.

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