Features: The environment-friendly waterless cannon has the advantages of easy blocking, good opening and erosion resistance, and is suitable for the tapping of different blast furnaces.
Physical and chemical indicators:
Brand | PN-1 | PN-1 | PN-3 | PN-4 | |
Chemical composition （%） ≥ | Al2O3 | 20 | 30 | 30 | 30 |
Sic | 25 | 25 | 30 | 35 | |
Si3N4 | -- | -- | 5 | 10 | |
Bulk density（g/cm3）≥ | 2.10 | 2.20 | 2.30 | 2.30 | |
Permanent line change（%） | 1300℃×3h | ±1.0 | ±1.0 | ±1.0 | ±1.0 |
Flexural strength（MPa） | 1300℃×3h | 2～5 | 2～5 | 2～5 | 2～5 |
Compressive strength（MPa） | 1300℃×3h | 6～12 | 6～12 | 6～15 | 6～15 |
Use blast furnace volume（m3） | 1000 below | 1000-2000 | 2000-3200 | 2500 above | |
