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
Artículo | Ladrillo de sílice fundida |
SiO2 ( %) | ≥98 |
Alabama2oh3 ( %) | ≤0,3 |
fe2oh3( %) | ≤0,5 |
cao( %) | ≤0,2 |
Densidad a Granel (g/cm3) | ≥1,8 |
Porosidad aparente ( %) | ≤20 |
Fuerza de aplastamiento en frío(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, alta resistencia, fuerte resistencia a la escoria, strong impact resistance, baja conductividad térmica, and small shrinkage during drying and firing.
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