High-grade silica bricks for glass furnaces, have the features, such as, high content of SiO2, low melting index, etc. Products are widely applied in upper section of arched roof, wall, and regenerator chamber. Main properties of products we’ve developed have reached or exceeded international advanced level, which are able to replace peer imported ones. Service life could be extended over five years, which have gained popularity among our customers at home and abroad.
|
Item\Brand |
High-grade Silica Bricks |
||
|
|
BG-96A |
BG-96B |
BG-95 |
|
SiO2 % ≥ |
96 |
96 |
95 |
|
Fe2O3% ≤ |
0.6 |
0.8 |
1.0 |
|
Refractoriness under load (T0.6) 0.2Mpa°C ≥ |
1680 |
1670 |
|
|
Apparent porosity % ≤ |
21 |
22 |
22 |
|
Cold crushing strength Mpa ≥ |
40 |
30 |
|
|
True density g/cm³ ≤ |
2.34 |
||
|
Melt index % ≤ |
0.5 |
07 |
- |
|
Reheating linear change (1450°C * 2h) % ≤ |
0~0.2 |
||
|
Residual Quartz % ≤ |
2.5 |
||
