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Fused silica brick is also known as zero thermal expansion fused silica brick or thermal shock resistance silica brick. Fused silica refractory brick have good properties of acid corrosion resistance, anti-quick heat and high temperature and high strength, low expansion coefficient, etc.
Product Description
Product Description
What's Fused Silica Refractory Brick
Fused silica brick is also known as zero thermal expansion fused silica brick or thermal shock resistance silica brick. The main raw materials are amorphous fused silica. It's thermal expansion coefficient is near zero, so the product is also named zero thermal expansion silica brick.
Zero expansion silica bricks is High thermal shock resistance and zero expansion silica bricks produced with fused silica as the main raw material, with resistance to thermal shock when warming up, high strength, low expansion rate, acid erosion resistance and many other advantages, it is the best choice for glass kiln as hot patching bricks.
It is widely used in hot repair project on coke oven, glass furnace and hot blast stove. After hot repair, no crack and peeling, long service life, safe and reliable.
Advantages for Fused Silica Brick
1. Longer service life, accurate size tolerance, pure color
2. Excellent thermal shock resistance, no need to shutdown the kiln when hot repairing
3. Good structural strength in high temperature.
4. Zero thermal expansion coefficient, no need expansion joint, improve the tightness of masonry.
5. Rare crack and peeling phenomena.
6. No preheating required
7. SiO2 content is above 99%.
8. Low flux index (less than0.3%), no pollution to product.
9. Good anti-erosion and acid-resistance.
Application for Zero-expansion Silica Brick
It is widely used in hot repair project on coke oven, glass furnace and hot blast stove. After hot repair, no crack and peeling, long service life, safe and reliable.
Specification for Fused Silica Brick
| Item | Index |
| SiO2（%） | ≥99 |
| Fe2O3（%） | ≤0.1 |
| Al2O3(%) | ≤0.3 |
| CaO（%） | ≤0.1 |
| Apparent Porosity (％) | ≤20 |
| Bulk Density (g/cm3) | ≥1.85 |
| Cold Crushing Strength（Mpa） | ≥30 |
| Refractoriness Under Load（T0.6, ℃） | ≥1650 |
| Thermal expansion (20-800℃, ％) | ≤0.2 |
| Thermal shock resistance (1100℃, water cycles) | ≥30 |
Silica Bricks Packing
Packed on fumigated wooden pallet, using paper or non-woven fabrics between layers separated, plastic film protected outside and then strap outside.
Or as your requirements.
Accurate Brick Size
For good quality bricks, the standard size and its shape should be rectangular with sharp edges and uniform in shape, "Xuankun" can do it.
Zero-expansion Silica Brick for Sale From Xuankun
Xuankun Company manufactures high quality fused silica bricks for thermal equipment. Advanced equipment and technology ensure you of good quality of our bricks, any demand for refractory silica bricks, kindly please contact us for the best price now!
Welcome to customize silica bricks, we can do bricks with different shapes and sizes to meet your needs.
Strictly Quality Management Control
We have passed ISO 9001 QUALITY MANAGEMENT SYSTEM CERTIFICATE, the production of silica brick and silica sand has been audited to conform to the following quality management system standard GB/T19001-2016 idt ISO9001:2015.
