Introduction
Zirconia corundum refractory castables are a crucial part of the modern refractory industry. They form a type of low-cement castable that offers several benefits. The high strength, excellent thermal shock resistance, and great anti-abrasion properties make them useful for lining key areas of furnaces and kilns. This industry knowledge article delves into the details of zirconia corundum refractory castables.
Properties of Zirconia Corundum Refractory Castables
The physical and chemical indicators of zirconia corundum refractory castables reflect their unique properties. These properties include:
1. High strength: The castables exhibit high compressive strength that ranges between 150 MPa and 300 MPa.
2. Excellent thermal shock resistance: Zirconia corundum refractory castables have good thermal shock resistance due to their superior thermal conductivity and low thermal expansion coefficient.
3. Great anti-abrasion properties: The zirconia corundum castables are also highly resistant to abrasion, which makes them suitable for lining parts that are prone to mechanical damage.
Applications of Zirconia Corundum Refractory Castables
Zirconia corundum refractory castables have a wide range of applications. They are primarily used in blast furnaces, cement rotary kilns, and electric arc furnaces. They are also used in other areas such as:
1. Ladle lining
2. Tundish lining
3. Steel-making furnace lining
4. Lime rotary kilns
5. Glass industry
Benefits of Using Zirconia Corundum Refractory Castables
The use of zirconia corundum refractory castables has several benefits for various industries.
1. Longer service life: The castables have high strength and excellent thermal shock resistance, which offers longer service life at high temperatures.
2. Low thermal conductivity: Low thermal conductivity makes them ideal for insulating high-temperature areas such as furnaces and kilns.
3. Increased efficiency: Zirconia corundum castables help reduce energy losses, improve productivity, and lower operating costs.
Conclusion
Zirconia corundum refractory castables have become an indispensable part of modern refractory industries. The high strength, excellent thermal shock resistance, and great anti-abrasion properties make them ideal for lining key areas of furnaces and kilns. Their applications range from steel-making to the glass industry, with benefits such as longer service life, low thermal conductivity, and increased efficiency.
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