Scope of application
Silica bricks are mainly used in glass industry and steel industry.
lGlass melting tank , glass kiln and Soaking pit, Doghouse crown, suspended wall of channel, top crown and inlet sealing of glass furnace.
lPartition walls of the carbonization chamber and combustion chamber of the coke oven.
lThe regenerator and slag chamber of the steel making open hearth furnace.
Advantage
lGood acid resistance
lGood thermal stability at high temperature
lStrong resistance to glass liquid and air erosion
lHigh purity and less pollution to glass liquid
lLight 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 |
|
