1.Good structure.
2.High Heat Stability
3.Excellent thermal shock resistance.
4.Strong resistance to chemical attack.
Features:
The sillimanite brick is made of sillimanite minerals .After high temperature calcination,it become mullite and
dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.
1.Good thermal stability.
2.Strong resistance to chemical attack.
3.It is the first choice of stable material for glass forming.
Applications:
1.Widely used in glass furnace ,such as regenerator arch.
2.Mainly used in the blast furnace.
Sillimanite brick physiochemical index:
Item | Properties | ||||||
Sillimanite | Andalusite | Cordierite and mullite | Pouring sillimanite | ||||
LS-65 | L-60 | H-60 | HS-55 | SPCD-50 | SPCD-60 | CS-58 | |
AL2O3(%) | 65 | 60 | 60 | 55 | 50 | 60 | 58 |
Fe2O3(%) |
|
|
|
|
|
| 0.8 |
Refractoriness,°C | 1790 | 1790 | 1790 | 1770 | 1770 | 1790 | 1790 |
Apparent porosity % | 22 | 22 | 22 | 22 | 24 | 24 | 26 |
Cold Crushing strength MPa | 50 | 50 | 40 | 40 | 40 | 50 | 50 |
Bulk density,g/cm3 | 2.2 | 2.2 | 2.5-2.7 | 2.5-2.7 | 2.4 | 2.4 | 2.2 |
Softening temperature under load,KD°C≥ | 1550 | 1500 | 1500 | 1450 | 1450 | 1500 | 1450 |
Permanent linear change,%(°C×h) | ±0.2 | ±0.2 | ±0.2 | ±0.2 | (1000°C)≤±0.5% | (1000°C)≤±0.5% | 1400°C×2h +0.1 -0.3 |
Application | Used for temperature change severe industrial furnace and thermal lining equipment | All sorts of kiln burner brick and ceramic kiln brick | All industrial furnace | ||||
