Refractory material for Glass furnaces
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Refractory material for Glass furnaces
Silica bricks for glass furnaces
Note: The value in bracket is manual forming brick
2.2. High quality silicon bricks for glass furnaces
Note: Fusion index=Al2O3 mass fraction +2R3O mass fraction
2.3 Large Clay refractory bricks for glass furnaces
Silica bricks for glass furnaces
MARK | BG-96A | BG-96B | BG-95A | BG-95B |
SiO2 ≥ | 96 | 96 | 95 | 95 |
Fe2O3, %≤ | 0.8 | 1.0 | 1.2 | 1.2 |
Fusion index ≤ Unit Weight <20kg Unit Weight≥20kg | 0.5 1.6- | - - | 0.7 0.7 | - |
0.2MPA refractoriness under load ℃ ≥ | 1680 | 1670 | 1660 | 1650 |
Apparent porosity, % ≤ | 22(24) | |||
Compressive strength at normal Temperature, MPA ≥ Unit Weight <20kg Unit Weight ≥20kg | 35(30) 30(25) | |||
Real density, g/cm3 ≤ | 2.34 | 2.35 |
MARK | XBG-96 | ZBG-96 | DBG-96 |
Unit weight, kg | ≤15 | >15~ ≤25 | >25~ ≤40 |
SiO2 mass fraction, % ≥ | 96 | 96 | 96 |
Fe2O3 mass fraction ≤ | 0.9 | 0.9 | 1.0 |
Fusion index, % ≤ | 0.5 | 0.5 | 0.6 |
0.2MPA refractoriness under load, ℃ ≥ | 1680 | 1680 | 1670 |
Apparent porosity, % ≤ | 22 | 23 | 24 |
Real density, g/m3 ≤ | 2.34 | 2.34 | 2.35 |
Compressive strength, MPA ≥ | 35 | 30 | 30 |
Reheating line change % 1450℃×2h ≤ | 0.3 | 0.3 | 0.3 |
MARK | BN-40a | BN-40b |
Al2O3, % ≥ | 40 | |
Fe2O3, % ≤ | 1.5 | 1.8 |
0.2MPA refractoriness under load, ℃≥ | 1450 | 1400 |
Linear change after reheating % 1400℃, 2h | 0 ~ 0.4 | |
Apparent porosity, % ≤ | 18 | 18 |
Compressive strength, MPA ≥ | 49 | 34.3 |
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Refractory material for Glass furnaces
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