High Purity Fused Mullite
Dec 21, 2023
Fused mullite is made of high-purity quartz sand and industrial alumina, and is smelted in a super-large electric arc furnace. It has a white color, extremely low carbon residue, well-developed needle-like crystals, and high flexural strength. It has the characteristics of uniform expansion, thermal stability It has excellent stability, high load softening point, small high-temperature creep value, high hardness, and good resistance to chemical corrosion. It is widely used in glass kiln lining bricks, large ironmaking blast furnace hot blast furnace bricks, ceramic kiln furniture, saggers, Shed panels, petrochemical and other industries are the raw materials for high-grade refractory materials.
|
performance |
Electromelt elct.melt.3Al 2 O 3 .2SiO 2 |
|
|
Chemical composition % |
Al2O3 _ _ _ |
70~77 |
|
SiO2 _ |
22~29 |
|
|
Fe2O3 _ _ _ |
<0. 10 |
|
|
R2O |
<0. 5 |
|
|
RO |
<0. 3 |
|
|
Refractory ( ° C) |
>1850 |
|
|
Particle volume density (g/cm 3 ) |
>3.03 |
|
|
Linear expansion coefficient (1/°C) |
-6.0×10-6 |
|
|
Glass phase content |
≤5~6% |
|
|
Mullite phase 3Al 2 O 3 ?/span> 2SiO 2 Phase |
≥94~95% |
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JIYGO REFRACTORY & ABRASIVE LIMITED
