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Blog de refractory
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The nature of Mullite Brick publié le 07/03/2017 à 10:46
Mullite brick is the only stabilized binary compound in the Al2O3-SiO2 binary system under normal pressure. The chemical formula is 3Al2O3-2SiO2, and the natural mullite is very small. It is usually synthesized by sintering or fusing. Quality refractory material.
1. Refractoriness. The range of high alumina refractory material is large, generally 1770-2000 ℃, mainly the impact of alumina content, with the increase in alumina content increased.
2. Load softening temperature. High aluminum refractory products load softening began to deformation temperature greater than 1400 ℃, and with the increase in alumina content increased.
Thermal conductivity. It has a higher thermal conductivity than clay products, the reason is the high thermal conductivity of aluminum products in the glass is relatively low, and better thermal conductivity mullite and corundum crystal increased, and improve the thermal conductivity of products ability.(0) commentaires
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