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Physical and chemical indexes of electrofused zirconium corundum bricks
Time：
Aug 21,2024
Electrofused zirconium corundum brick is a high-performance refractory material with excellent chemical and physical properties. The following are its main physical and chemical indexes:
1. Chemical composition:
The main chemical composition of electrofused zirconium corundum brick includes alumina (Al2O3) and zirconium oxide (ZrO2). The content of alumina is generally more than 95%, and the content of zirconium oxide is between 2-3%. In addition, it also contains a small amount of other oxides such as aluminium silicate and iron oxide.
2. Density:
The density of electrofused zirconia corundum bricks is usually between 3.8-3.9g/cm³, which has a high density and can provide better refractory performance and compressive strength.
3. Compressive strength:
The compressive strength of electrofused zirconia corundum bricks is usually above 100MPa, which has high mechanical strength and can withstand large mechanical stress.
4. Thermal shock stability:
Electrofused zirconium corundum bricks have good thermal shock stability at high temperatures, and are not easy to crack or rupture under rapidly changing temperature conditions.
5. Corrosion resistance:
Fused zirconium corundum bricks can resist acid and alkali erosion and gas erosion at high temperature, with good corrosion resistance, suitable for a variety of corrosive environments.
6. Use temperature:
Fused zirconium corundum bricks are generally used at a temperature of more than 1700 ℃, can be used stably for a long time under high temperature conditions, is a high-quality refractory material.
In general, electrofused zirconium corundum brick has excellent chemical composition, high density, high compressive strength, good thermal shock stability and corrosion resistance, suitable for high temperature industrial furnace lining and refractory components, is a kind of refractory material with superior performance.
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