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China Suppliers Fused Re-sintered Corundum Mullite Brick Factory for High-Temperature Applications
Core Advantages
Advanced Fused Re-sintering Craft
Adopts state-of-the-art production technology, forming a dense and uniform internal structure that enhances product stability and durability, far exceeding ordinary corundum mullite bricks in service life.
Excellent Thermal Shock Resistance
Low thermal expansion coefficient, can withstand frequent rapid temperature changes (1100℃ water quenching ≥20 times) without cracking or spalling, adapting to complex working conditions of industrial furnaces.
High Strength & Dense Structure
Room temperature compressive strength ≥130MPa, apparent porosity ≤18%, ensuring good impermeability and load-bearing capacity, preventing molten media penetration and structural deformation.
Superior Erosion & Wear Resistance
Rich in high-purity Al₂O₃ and mullite phase, effectively resisting corrosion from molten slag, high-temperature gas and abrasion, maintaining stable performance in harsh working environments.
Wide Temperature Adaptability
Stable performance at 1750℃ for long-term use, suitable for high-temperature zones of various industrial furnaces, with strong compatibility for oxidizing, reducing and neutral atmospheres.
Product Parameters
| Item | Fused and Re-sintered Corundum Mullite Brick | |
|---|---|---|
| Al₂O₃ % | ≥80 | ≥85 |
| SiO₂ % | ≤19 | ≤14 |
| Fe₂O₃ % | ≤0.3 | ≤0.3 |
| Bulk Density (g/cm³) | ≥2.70 | ≥2.85 |
| Apparent Porosity % | ≤18 | ≤18 |
| Cold Crushing Strength (MPa) | ≥100 | ≥100 |
| Refractoriness Under Load (℃, 0.2MPa, 0.6%) | ≥1700 | ≥1700 |
Detailed Application Scenarios
Our fused re-sintered corundum mullite bricks are widely used in high-temperature industrial furnaces and kilns, providing reliable and durable lining solutions for the following industries:
1. Metallurgical Industry
Hot blast furnace regenerator, electric arc furnace side wall, ladle upper lining, and other high-temperature load-bearing parts.
2. Glass Industry
Glass melting furnace regenerator checker brick, throat, side wall upper part, and other corrosion-prone high-temperature zones.
3. Chemical Industry
Chemical reactor lining, sulfuric acid plant conversion furnace, phosphate fertilizer furnace, and other high-corrosion high-temperature equipment.
4. Building Materials Industry
Ceramic roller kiln high-temperature zone, brick kiln lining, and refractory lining of cement kiln preheater.
Conclusion
Contact us now for a quote and experience the difference of working with the best in the business.
Frequently Asked Questions
What are the main advantages of fused re-sintered corundum mullite bricks?
They offer an advanced fused re-sintering craft that forms a dense and uniform structure, resulting in excellent thermal shock resistance, high compressive strength (≥130MPa), superior erosion resistance, and outstanding long-term stability at temperatures up to 1750℃.
How well do these bricks handle rapid temperature changes?
These bricks feature a low thermal expansion coefficient and outstanding thermal shock resistance. They can withstand 1100℃ water quenching 20 times or more without experiencing cracking or spalling.
What are the typical applications for corundum mullite bricks?
They are widely applied in metallurgical hot blast furnaces, glass melting furnace regenerators and throats, chemical reactor linings, and ceramic roller kilns, specifically in zones subject to severe erosion and high thermal loads.
What chemical composition and physical properties do these bricks have?
They contain high Al₂O₃ content (≥80% to ≥85%) and low Fe₂O₃ (≤0.3%). Physically, they feature a bulk density of up to ≥2.85 g/cm³, apparent porosity ≤18%, and refractoriness under load of ≥1700℃.
Can these bricks resist chemical erosion in industrial kilns?
Yes. Rich in high-purity alumina (Al₂O₃) and mullite phases, they provide high resistance to corrosive molten slag, high-temperature gases, and general mechanical wear in harsh atmospheres.