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 |