융합된 실리카 벽돌

Fused silica brick is also called zero-expansion silica brick or thermal shock-resistant silica brick. They have extremely low thermal expansion coefficient, excellent resistance to rapid cooling and rapid heating, and good high-temperature performance. They are widely used in the rapid repair of various coke ovens.

Parameter of fused silica brick

안건	융합된 실리카 벽돌
SiO₂ ( %)	≥98
알₂영형₃ ( %)	≤0.3
철₂영형₃( %)	≤0.5
CaO( %)	≤0.2
부피 밀도 (g/cm3)	≥1.8
Apparent Porosity ( %)	≤20
냉간 분쇄 강도(Mpa)	≥30

Advantages of fused silica bricks

Fused silica bricks are of high purity and corrosion resistance
The thermal expansion coefficient of fused silica bricks is small
The thermal shock resistance of fused silica bricks is low
Fused silica bricks have high viscosity at high temperatures, 고강도, 강한 슬래그 저항, strong impact resistance, 낮은 열전도율, and small shrinkage during drying and firing.