Группа Жуншэн
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
| Элемент | плавленый кварцевый кирпич |
| SiO2 ( %) | ≥98 |
| Ал2О3 ( %) | ≤0,3 |
| Фе2О3( %) | ≤0,5 |
| СаО( %) | ≤0,2 |
| Объемная плотность (г/см3) | ≥1.8 |
| Видимая пористость ( %) | ≤20 |
| Холодная прочность на дробление(МПа) | ≥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, high strength, сильная стойкость к шлаку, strong impact resistance, низкая теплопроводность, and small shrinkage during drying and firing.
Вичат
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