Product Introduction
Corundum mullite bricks are widely favored in the refractory industry for their unique characteristics, which mainly include: high temperature stability, chemical erosion resistance, oxidation resistance, excellent thermal stability and thermal shock resistance, and high strength.
1. High temperature stability: It has high refractoriness and can maintain structural integrity in high temperature environments, and is not prone to cracking, deformation or burning. At the same time, its load softening temperature is also high, and it can withstand greater pressure at high temperatures without softening or deformation.
2. Chemical erosion resistance: The material has excellent resistance to acidic solutions, alkaline solutions, and a variety of slags and melts.
3. Oxidation resistance: Corundum mullite bricks are not easy to react chemically with gases such as oxygen, hydrogen, and carbon monoxide.
4. Excellent thermal stability and thermal shock resistance: It is not easy to expand or shrink at high temperatures, which is conducive to maintaining the stable operation of the equipment. At the same time, it can also resist the stress caused by thermal shock and reduce the risk of material damage.
5. High strength: Corundum mullite bricks have high compressive strength and flexural strength, and can withstand mechanical stress at high temperatures, making them less prone to wear during transportation and unloading.
In summary, corundum mullite bricks occupy an important position in the refractory industry and are widely used in various high-temperature industrial fields.
Technical Data
| Item | Specification | |||
| GMZ-90 | GMZ-85 | GMZ-80 | GMZ-75 | |
| Al2O3 % | ≥90 | ≥85 | ≥80 | ≥75 |
| Fe2O3 % | ≤0.8 | ≤1.0 | ≤1.0 | ≤1.2 |
| Apparent Porosity, % | ≤16 | ≤17 | ≤18 | ≤18 |
| Bulk Density, g/cm3 | ≥3.10 | ≥2.85 | ≥2.75 | ≥2.6 |
| CCS, MPa | ≥120 | ≥100 | ≥100 | ≥80 |
| 0.2MPa RUL℃ | ≥1700 | ≥1680 | ≥1650 | |
| PLC, % 1500℃×2h | ±0.1 | ±0.2 | ||
| TSR, Cycle 1100℃ Water | ≥30 | ≥30 | ≥30 | |
Application
Corundum mullite bricks are widely used in various high-temperature industrial furnaces and refractory equipment. They are often used as linings for blast furnaces, hot blast furnaces, glass melting furnaces, dry coke quenching and heating furnaces and other industrial furnaces.