Electrocast Zirconium Corundum Brick
LAR’s electrocast zirconium corundum brick is a high-performance refractory material used in demanding high-temperature environments. Manufacturers produce electrocast zirconium corundum brick through an electro-fusion casting process. This process ensures a dense and uniform internal structure.
LAR’s electro fused zircon corundum bricks contain a combination of zirconia and alumina phases. This composition improves corrosion resistance and thermal stability. Electro zircon corundum bricks perform well in glass furnaces and other harsh industrial conditions.
The product belongs to the advanced category of corundum brick materials. The structure shows excellent resistance to molten glass erosion. The material also maintains dimensional stability under long-term thermal exposure.
Manufacturers control the internal structure to achieve a density optimization of about 5–6%. This controlled density improves thermal efficiency while maintaining strength.
Product Overview
Electrocast zirconium corundum brick is a high-performance fused refractory material designed for applications requiring excellent corrosion resistance, high-temperature stability, and strong resistance to molten glass erosion. It is produced through an electrofusion process using zirconia and alumina raw materials, forming a dense structure with superior mechanical and chemical properties.
Electro fused zircon corundum bricks are widely used in glass melting furnaces, including furnace sidewalls, bottom blocks, flow channels, and other areas exposed to direct contact with molten glass. The combination of zirconia and corundum phases provides excellent resistance to glass liquid penetration, chemical attack, and high-temperature deformation, helping maintain stable furnace operation.
Electrocast zirconium corundum brick features low porosity, high density, and good structural integrity under extreme thermal conditions. These properties help reduce refractory consumption and minimize contamination risks during glass production, making them suitable for demanding applications in the glass industry.
LAR manufactures customized electro fused zircon corundum bricks according to furnace design, glass composition, operating temperature, and installation requirements. With advanced production technology and strict quality control, LAR provides reliable refractory solutions that help customers extend furnace service life, improve production efficiency, and maintain stable high-temperature performance.
Key Features
Excellent Corrosion Resistance
Electrocast zirconium corundum brick resists chemical attack from molten glass and slags. The zirconia phase enhances corrosion resistance. The material performs reliably in aggressive environments.
Optimized Density Structure
Manufacturers design the internal structure with a density adjustment of about 5–6%. This structure reduces unnecessary weight. The optimization improves thermal performance without sacrificing durability.
High Temperature Stability
Electro fused zircon corundum bricks maintain stable properties at very high temperatures. The material resists deformation during continuous operation. The structure supports long service cycles.
Strong Thermal Shock Resistance
Electro zircon corundum bricks adapt to rapid temperature changes. The material reduces the risk of cracking. The product performs well during heating and cooling cycles.
High Mechanical Strength
Each corundum brick provides strong load-bearing capacity. The dense fused structure supports heavy industrial use. The material maintains integrity under stress.
Long Service Life
Electrocast zirconium corundum brick resists wear and chemical erosion. Users benefit from reduced replacement frequency. The product lowers long-term maintenance costs.
Typical Product Types
Manufacturers supply electrocast zirconium corundum brick in different grades and structures:
· Standard electro fused zircon corundum bricks
· High zirconia content electro zircon corundum bricks
· Dense casting corundum brick blocks
· Customized shapes for glass furnace zones
Each type matches specific working conditions. Suppliers adjust composition and structure based on application needs.
Technical Characteristics
Item | Specification | |||
AZS33Y | AZS36Y | AZS41Y | ||
ZrO2 % | 32~36 | 35~40 | 40~44 | |
SiO2 % | ≤16 | ≤14 | ≤13 | |
Na2O % | ≤1.45 | ≤1.45 | ≤1.3 | |
Fe2O3+TiO2+CaO+MgO+K2O+Na2O % | ≤2.0 | ≤2.0 | ≤2.0 | |
Fe2O3+TiO2 % | ≤0.3 | ≤0.3 | ≤0.3 | |
Bulk Density, g/cm3 | ≥3.75 | ≥3.8 | ≥3.95 | |
Apparent Porosity, % | ≤1.5 | ≤1.0 | ≤1.0 | |
Static Corrosion, 1500℃×36h mm/24h | ≤1.6 | ≤1.5 | ≤1.3 | |
Exudation Temperature, ℃ | ≥1400 | ≥1400 | ≥1400 | |
Bubble Precipitation Rate, 1300℃×10h % | ≤2.0 | ≤1.5 | ≤1.0 | |
Exudation Amount of Glass Phase, 1500℃×4h % | ≤2.0 | ≤3.0 | ≤3.0 | |
Bulk Density, kg/m3 Unit Weight>50Kg | PT/QX | ≥3400 | ≥3450 | ≥3550 |
ZWS | ≥3600 | ≥3700 | ≥3850 | |
WS | ≥3700 | ≥3750 | ≥3900 | |
Technical parameters may vary depending on the grade. A professional supplier provides detailed specifications for each application.
Applications
Electrocast zirconium corundum brick is widely used in high-temperature industries:
· Glass Industry – float glass furnaces, container glass furnaces
· Metallurgical Industry – high-temperature lining systems
· Ceramic Industry – advanced kiln linings
· Special Industrial Furnaces – areas exposed to strong chemical corrosion
Electro fused zircon corundum bricks improve furnace life and operational stability. The material supports consistent product quality.
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Advantages Compared To Others
Type | Advantages | Application |
Electrocast Zirconium Corundum Brick | High corrosion resistance, long life, stable structure | Glass furnaces, severe environments |
Traditional Corundum Brick | Lower cost, simpler composition | General high-temperature use |
Electro zircon corundum bricks offer superior performance in critical zones. Many industries prefer this material for long-term efficiency.
Customization & Manufacturing
A reliable electrocast zirconium corundum brick supplier provides customized solutions. The manufacturer adjusts the product based on:
· Furnace type and operating temperature
· Chemical exposure conditions
· Required shape and size
· Zirconia content and structure
The electro-fusion casting process ensures precise dimensions and consistent quality. The product meets the requirements of modern industrial furnaces.
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