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Fusion Cast Alumina Block
Description
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 structure formed, 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
This kind of brick is a typical glass contact material for the end zones of furnaces such as working-end, feeder channels and forehearth 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 |
|
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.
Zhengzhou Sunrise Refractory Co., Ltd. is an integrated company of production and technology development. We are mainly engaged in the research and development of refractory materials. Our business mainly involves in
production of fused cast AZS 33, 36 , 41, fused cast α-β alumina, fused cast high zirconia block, fused cast skid rail block, glass mould brick, yttrium stabilized zirconia brick, magnesia series brick, zircon brick, zircon mullite brick, mullite brick, cordierite mullite bricks, sillimanite brick, fused corundum brick, high chrome brick series brick, chrome corundum brick, chrome AZS block, silicon carbide brick, silica brick, fireclay series brick, high alumina
series brick, insulation series brick, fiber products, magnesium silicon insulation board, etc.
Our products are widely used in industries of glass, ceramic, glaze, petrochemistry, metallurgy, sapphire crystal furnace, building materials, etc. The products of our company are sold in markets of Europe, America, Middle East, Korea and Southeast Asia.We have established business and cooperation relationship with many customers in differentcountries and regions.Our company has passed ISO9001:2000 Quality Management Systems Certification.
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