Scope of application:
Silica bricks are mainly used in glass industry and steel industry.
l Glass melting tank , glass kiln and Soaking pit, Doghouse crown, suspended wall of channel, top crown and inlet sealing of glass furnace.
l Partition walls of the carbonization chamber and combustion chamber of the coke oven.
l The regenerator and slag chamber of the steel making open hearth furnace.
Advantage:
l Good acid resistance
l Good thermal stability at high temperature
l Strong resistance to glass liquid and air erosion
l High purity and less pollution to glass liquid
l Light weight and long service life
Technical Data:
|
Item |
BG-94 |
BG-95 |
BG-96A |
|
|
Chemical composition |
SiO2 |
≥94 |
≥95 |
≥96 |
|
Fe2O3 |
≤1.5 |
≤1.5 |
≤0.8 |
|
|
Al2O3+TiO2+R2O |
|
≤1.0 |
≤0.5 |
|
|
Refractoriness ℃ |
1710 |
1710 |
1710 |
|
|
Apparent Porosity％ |
≤22 |
≤21 |
≤21 |
|
|
Bulk Density g/cm3 |
≥1.8 |
≥1.8 |
≥1.8 |
|
|
True Density,g/cm3 |
≤2.38 |
≤2.38 |
≤2.34 |
|
|
Cold Crushing Strength Mpa |
≥24.5 |
≥29.4 |
≥35 |
|
|
0.2Mpa Refractoriness Under Load T0.6 ℃ |
≥1630 |
≥1650 |
≥1680 |
|
|
Permanent Linear Change On Reheating （%）1500℃X2h |
0～+0.3 |
0～+0.3 |
0～+0.3 |
|
|
20－1000℃ Thermal Expansich10-6/℃ |
1.25 |
1.25 |
1.25 |
|
|
Thermal Conductivity (W/MK) 1000℃ |
1.74 |
1.74 |
1.44 |
|
