SiO2 has different types of crystals in different temperatures, and the transform between the crystals will cause the change of the bulk. So there is close contact between the changes of SiO2 crystals and the produce, performance, and usage of silica bricks. During the heating, there will be changes of the bulk, and cristobalite changes most, then quartz, phosphorus quartz is the slowest of all and it also has good heat conductivity. Coke oven should use silica brick with small true density. And the phosphorus quartz is better than others.
Mainly used in the construction of regenerative chamber, chute, combustion chamber, cooking chamber, furnace roof, etc. parts of the coke ovens. Silica Brick For Glass Kiln Mainly used for coke oven of coking chamber and combustion chamber partition, steel open hearth of the regenerative chamber and sediment chamber, soaking furnace, glass melting furnace, refractory silica brick materials, and ceramic firing kiln and kiln of the vault and other supporting parts. Also used in hot blast stove of high temperature bearing parts and acid open hearth furnace roof.
1) Silicon oxide is above 95%.
2) Good acid erosion resistance.
3) High softening point with temperature.
4) No shrink in burn repeatedly.
5) Temperature of refractoriness under load is above 1650º C
Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.
for coke oven
for glass kiln
|0.2MPa RUL°C ≥||1650||1680||1670||1660||1650|
one BRICK ≥20kg
|True density g/cm3 ≤||2.34 2.35||2.34|
|PLC % 1450°C×2h||+0.2 0||/|
|AP % ≤||22(23)||24||22(24)|
1000°C % ≤
|CCS MPa ≥