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Fused cast alpha-beta alumina products is mainly composed of Al2O3 whose contents is more than 94 percent , and it is produced by melting and casting high purity alumina in electric furnace at 2000C, alpha-beta corundum products is formed when alpha alumina and beta alumina inter-combine during their crystallization stage. This process directly leads to its dense structureformed, so this brick has excellent endurance to strong alkali. Under 1350C, it has strong corrosion resistance and almost does not contaminate to glass melting liquid . Because it does not contain impurities such as Fe2O3 and TiO2, when it comes into contact with glass liquid, air bubbles are rarely found. Therefore, this product has the special characteristic of minimizing contamination to glass liquid.
Features
1. High refractoriness
2. Better resistance to glass liquid
3. Excellent thermal stability
Application
Fused cast α-β aluminabricks is a typical glass contact material for the end zones of furnaces such as working-end, feeder channels when pure glass is required.
Physical properties and chemical composition
Item | TY-M (α-βAlumina) | |
Chemical Composition % | Al2O3 | 94 |
Na2O | 4 | |
SiO2 | 1 | |
CaO | 0.1 | |
Fe2O3 | 0.25 | |
True density g/cm3 | ≥3.52 | |
Cold Crushing Strength Mpa | ≥200 | |
Refractoriness Under Load °C | 1700 | |
Bulk Density (g/cm3) | PT(RN) | ≥3.2 |
WS( VF) | ≥3.35 | |
Crystallographic analysis % | α-Al2O3 | 44 |
β-Al2O3 | 55 | |
Glass Phase | 1 | |
Trading Process
1.We offer free of charge samples.
2..We give suggestions to customers according to your specific requirement to extend the service life of your kiln and save money for you.
3.We pay much attention to the production procedures and testing.
4.We offer good after-sale service.
Brief Introduction of Sunrise
Zhengzhou Sunrise Refractory Co., Ltd. is mainly engaged in the production and development of refractory
materials for glass , petrochemistry, metallurgy, construction and nonerrous metal industries. Our main
products include fused cast AZS 33, 36,41, fused cast αβ alumina brick, crucibles, furnace fireclay bottom
block, silica, high alumina, magnesia, corundum, chrome, zircon, mullite, zirconia mullite, silicon carbide,
sillimanite, alumina bubble bricks, various insulation bricks, and ceramic fiber products,etc.
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