Fused cast Alumina Brick is formed by the compact structure of α alumina and β alumina crystals in a most ideal proportion which is approximately 50% and 50% respectively,where intertwined crystals of both materials result in a very dense structure.This kind of product has dense structure and no contamination to glass. It is the ideal refractory materials for channels, spouts and working ends of floating glass furnace.
Payment :
In AdvanceProduct Origin :
ChinaShipping Port :
Shanghai PortLead Time :
15 Working daysSpecifications
Item | α-β Alumina Brick |
|
Chemical Composition(%) | Al2 O3 | 94.0 |
Na2 O | 4.0 | |
SiO2+CaO+Fe2O3 +TiO2 | ≤2.0 | |
Bulk Density(dense part)(g/cm3) | 3.3 | |
Cold Crushing Strength(Mpa) | 200 | |
Static Resistance to GlassErosion (1350ºC*48h,common sodium calcium glass) |
0.2 | |
Refractoriness Under Load(0.2Mpa) | -- | |
Bulk Density | PT | 3.0 |
WS | 3.2 |
α-β fused cast brick, also known as α-β alumina fused cast brick, is a type of refractory brick that is used in high-temperature applications. It is made from a combination of fused alumina and zirconia, which gives it excellent thermal and chemical resistance properties.
Key Points about α-β fused cast brick:
Composition: α-β fused cast brick consists primarily of alumina (Al2O3) and zirconia (ZrO2) in a specific ratio. The presence of both α and β phases of alumina and zirconia contributes to its unique properties.
High Refractoriness: α-β fused cast brick has a high melting point and excellent resistance to thermal shock, making it suitable for use in extremely high-temperature environments.
Corrosion Resistance: This type of brick has excellent chemical resistance, particularly against alkalis and slags. It is commonly used in applications where it comes into contact with molten metals or harsh chemical environments.
Low Porosity: α-β fused cast brick has a low porosity, which enhances its strength and resistance to penetration by molten materials.
High Mechanical Strength: It exhibits high mechanical strength, allowing it to withstand the mechanical stresses encountered during use.
Applications: α-β fused cast brick finds application in various industries, including glass manufacturing, non-ferrous metal smelting, and petrochemical processes. It is commonly used in the construction of glass tank furnaces, regenerators, sidewalls, and other high-temperature equipment.
Installation: The installation of α-β fused cast brick typically involves carefully fitting and bonding the bricks together using a special refractory mortar. The construction techniques may vary depending on the specific application and furnace design.