Fused β Alumina Bricks are manufactured using high-purity alumina raw materials through a specialized electric melting process. Their unique β-alumina crystal structure endows the product with exceptional performance characteristics:
Superior thermal shock stability: The β-alumina crystal structure exhibits a low thermal expansion coefficient, enabling it to withstand abrupt temperature changes。
Outstanding resistance to alkali vapor erosion: Demonstrates exceptional resistance to alkali vapors in glass melting furnaces。
Good high-temperature volume stability: Maintains structural integrity at elevated temperatures with minimal deformation。
Moderate thermal conductivity: Ensures adequate heat dissipation while promoting energy efficiency。
Low porosity: Dense structure effectively blocks penetration by corrosive media。
Typical physical and chemical properties:
Al₂O₃ content: ≥92%
Na₂O content: 6.0-7.5%
Bulk density: ≥2.95 g/cm³
Apparent porosity: ≤4%
Compressive strength at room temperature: ≥150 MPa
Refractoriness: ≥1800°C
Maximum service temperature: ≥1700°C
