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Superior Stability in Severe Thermal Cycling Environments
1. Alumina: ≥80%
2. Standard Size: 230*114*65mm
3. Benefits:
• Optimized Alumina-Mullite Composite Matrix
• Excellent Thermal Shock
• High Hot Strength and Volume Stability
The fused re-sintered alumina-mullite brick series (DAM series) comprises three main models: DAM-80, DAM-85, and DAM-90. Through a unique fusion and secondary sintering process, it perfectly combines the high-temperature performance of alumina with the thermal shock resistance of mullite. This product line exhibits thermal shock resistance exceeding 15 cycles of 1100°C water quenching, with 88%-90% alumina content complemented by 10%-20% silica, forming exceptional characteristics that are both high-temperature resistant and thermal shock resistant. Its dense structure, with apparent porosity controlled below 17%, demonstrates outstanding applicability in regenerator checker bricks, upper structures of glass melting furnaces, as well as channels and forming components.
1.Glass Industry (Secondary Zones)
Regenerator Middle Zones & Checkers: Used in the middle courses of regenerator checkers, balancing cost and performance where conditions are less severe than in the upper zones.
Key Advantage: Provides adequate resistance to alkali vapors and thermal cycling at a competitive cost-performance ratio.
2. Ceramic & Refractory Industry
High-Temperature Kiln Linings: Widely used in the firing zones, crowns, and car tops of tunnel kilns and shuttle kilns for firing sanitaryware, technical ceramics, and high-alumina refractories.
Key Advantage: Provides an optimal balance of thermal shock resistance and high-temperature strength, ensuring structural integrity under repeated heating and cooling cycles.
| Properties ⁄ Products | Al₂O₃(%) | SiO₂(%) | Fe₂O₃(%) | ApparentPorosity(%) | Bulk Density(g/cm³) |
Cold crushingStrength(MPa) | RefractorinessUnder Load T0.5(℃) | |
|
Alumina-Mullite Bricks |
DAM-80 | ≥80 | ≤18 | ≤0.3 | ≤17 | ≥2.80 | ≥100 | ≥1700 |
| DAM-85 | ≥85 | ≤13 | ≤0.3 | ≤17 | ≥2.95 | ≥100 | ≥1700 | |
| DAM-90 | ≥90 | ≤8 | ≤0.3 | ≤17 | ≥3.10 | ≥80 | ≥1700 | |
In practical applications, selection should be based on comprehensive evaluation of glass composition, melting temperature, design lifespan and other parameters. We provide professional material selection services including performance parameter analysis, service life prediction, and cost-benefit evaluation. Request a quote now!
