Corundum-Mullite Bricks are manufactured using premium raw materials such as fused corundum, sintered corundum, and high-purity mullite. They are produced through scientific grading, high-pressure forming, and a sintering process with strict temperature control. Their performance advantages stem from their unique mineral composition and refined microstructure:
Exceptional High-Temperature Performance: High alumina content ensures extremely high refractoriness and load-bearing softening temperature; the mullite network structure provides outstanding high-temperature creep resistance and volume stability.
Superior Thermal Shock Resistance: The material's inherently low thermal expansion coefficient, combined with a specialized particle structure design, effectively buffers thermal stresses and resists cracking and spalling caused by sudden temperature changes.
Superior chemical resistance: Exhibits strong resistance to acidic and weakly alkaline slags, reducing atmospheres, and various molten metals.
High mechanical strength: Demonstrates excellent wear resistance and erosion resistance at both ambient and elevated temperatures.
Key Technical Specifications:
Al₂O₃ Content: ≥ 75% (adjustable to 85%+ upon request)
Mullite Phase Content: ≥ 20%
Refractoriness: ≥ 1850°C
0.2MPa Load Softening Start Temperature (T0.6): ≥ 1700°C
Room Temperature Compressive Strength: ≥ 80 MPa
Thermal Shock Stability (1100°C water quenching): ≥ 25 cycles
Bulk Density: ≥ 2.75 g/cm³
