Crucible
Corundum Mullite SeriesMade from premium corundum mullite material, featuring high-temperature strength, excellent thermal shock resistance, and outstanding chemical stability. Widely used in high-temperature smelting processes in metallurgy and chemical industries.
| Parameter | Specification |
|---|---|
| Material | Corundum Mullite Composite |
| Max Service Temperature | 1750°C |
| Bulk Density | ≥2.5 g/cm³ |
| Cold Crushing Strength | ≥80 MPa |
| Al₂O₃ Content | ≥70% |
Material Introduction
Corundum mullite brick is a high-performance refractory material specifically designed for glass furnaces. It combines the high refractoriness of corundum with the excellent thermal shock resistance of mullite, making it an indispensable key material in the glass industry.
The refractoriness of corundum mullite bricks ranges from 1750°C to 1830°C, capable of withstanding the high-temperature environment and mechanical stress of glass melting furnaces. Its application in glass furnaces not only extends the service life of the furnace, but also reduces maintenance costs and improves production efficiency, making it an essential refractory material in the glass industry.
Product Features
- High-purity corundum mullite material with excellent high-temperature performance
- Strong thermal shock resistance, no cracking under repeated use
- Good chemical stability, resistant to acid and alkali corrosion
- High surface finish, non-stick slag
- Available in multiple sizes, custom orders supported
Specification Parameters
| Index | DM-80 | DM-85 | A-95 | A-99 |
|---|---|---|---|---|
| Al₂O₃ (%) | ≥ 80 | ≥ 85 | ≥ 95 | ≥ 99 |
| SiO₂ (%) | ≤ 19 | ≤ 14 | / | ≤ 0.29 |
| Fe₂O₃ (%) | ≤ 0.15 | ≤ 0.2 | ≤ 0.3 | ≤ 0.3 |
| Apparent Porosity (%) | ≤ 18 | ≤ 18 | ≤ 17 | ≤ 17 |
| Bulk Density (g/cm³) | ≥ 2.80 | ≥ 2.95 | ≥ 3.15 | ≥ 3.15 |
| Cold Crushing Strength (MPa) | ≥ 85 | ≥ 90 | ≥ 95 | ≥ 98 |
| 0.2MPa Refractoriness Under Load T₀.₆ (℃) | ≥ 1700 | ≥ 1700 | ≥ 1700 | ≥ 1700 |
| Thermal Shock Stability (1100℃, water-cooling/times) | ≥ 7 | ≥ 15 | / | / |
| Creep Rate (1500℃×5~50h) % | ≤ 0.3 | ≤ 0.3 | / | / |
