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Polycrystalline mullite fibre
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Polycrystalline mullite fibre HOME > PRODUCTS > Polycrystalline mullite fibre

The product description:
Polycrystalline mullite fibre is the latest super lightweight high temperature refractory fiber at home and abroad, classification of the temperature of 1600℃, melting point 1840℃, is a unique existence in mullite crystal phase of polycrystalline refractory fiber, manufacture process is complex, with high content of science and technology, and only a handful of developed countries abroad to produce this kind of products, such as silicon carbide company in the United States, Britain's ICI, and Japan, Germany and other companies. Polycrystalline mullite fiber and glass fiber has a different production process, it is to use chemical "colloid method" of, by the formation of a single crystal of mullite (Al2O3, SiO2) for chemical formula, the chemical composition was: 72% + 28% SiO2, Al2O3 its principle is to has a certain viscosity of soluble aluminum, silicon colloidal solution, the spun into fiber embryo body, and then by the crystallization of high temperature heat treatment in the process, such as into the main crystal phase for a single mullite phase of Al - Si polycrystalline mullite fiber, fiber diameter for 3-5 um, appearance of 10-150 - mm fiber monofilament length is white, smooth, soft, elastic, especially as the absorbent cotton. Polycrystalline mullite fiber dispersion cotton available various series: a variety of forming method, the polycrystalline mullite fibre board, the polycrystalline mullite fibre blanket, polycrystalline mullite fiber furnace, polycrystalline mullite fibre special-shaped, polycrystalline mullite fiber module, the polycrystalline mullite fibre blanket, polycrystalline mullite fiber paper, polycrystalline mullite fiber preform, the polycrystalline mullite fibre stickup lump, etc. Product has good heat stability, and its thermal conductivity is 1/6 of the ordinary firebrick, only 1/25 of its bulk density, energy saving rate was 15-45%. Can be widely used in metallurgy, machinery, electronics, ceramics, chemical, aerospace, glass, automotive and other high temperature industrial kiln lining insulation and other thermal equipment, etc.
Second, the product features:
Low heat storage, low thermal conductivity, thermal shock resistance, good sound-absorbing properties, high heat reflection performance, uniform fiber diameter, excellent chemical stability, resistance to air flow scouring
Three, product and application:
High temperature environment, filling sealing and heat insulation (kiln car, pipelines, wicket, etc.), fiber composite materials (such as friction plate, etc.), all kinds of industrial furnace lining (hot surface and the backing), in the building fire prevention, sound-absorbing, high temperature filtration material, raw material for refractory fiber products deep processing.

Four, product physical and chemical indicators:

Project/name Classification Temperature (℃)Melting    point (℃)ColorBulk density 
kg/m3
Texturechemical component%

Al2O3

Al2O3+SiO2

T-1600Glass Fiber16001840white80Polycrystalline mullite fiber72-7599.5

Five, the commonly used specifications of products:
5/10/20 kg/piece

 

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