Long Nozzle
Classified by materials and functions,long nozzles can be grouped into preheating/non-preheating,blowing argon/non-argon,alumina-carbon,alumina-zirconia-carbon,magnesia-carbon,etc.It possesses good capacity of erosion resistance,anti-oxidation and anti-splasing.
Used in | Body | Slag line | ||||
Conditions | Preheat | Non-preheat | Neutral | Acid | Alkaline | |
Chemical analysis % | Al2O3 % ≥ | 40 | 35 | 56 | --- | --- |
ZrO2 % ≥ | --- | --- | --- | 72 | --- | |
MgO % ≥ | --- | --- | --- | --- | 56 | |
C+SiC % ≥ | 28 | 23 | 23 | 15 | 15 | |
physics properties % | Bulk density g/cm3 ≥ | 2.16 | 2.10 | 2.40 | 3.42 | 2.52 |
Apparent porosity % ≤ | 20 | 20 | 18 | 18 | 18 | |
Cold crushing StrengthMpa ≥ | 20 | 20 | --- | 20 | 18 | |
Modulus of rupture Mpa ≥ | 6.0 | 6.0 | 6.0 | 6.0 | 4.0 |