Itme |
Inserti Zirconia | Bocchetta per tundish esterna | ||||
LKZN-L. | LKZN-M. | LKZN-H | LKTN75 | LKTN85 | LKTN90 | |
Porosità apparente (%) | 11-12 | 8-10 | 6-8 | 20 | 18 | 16 |
Densità apparente (g/cm3 ) | ≥4.9 | ≥5.2 | ≥5.3 | 2.6 | 2.8 | 3.0 |
Analisi chimica (%) | ||||||
ZrO2 + HfO2 | ≥94.0 | ≥95.5 | ≥96.0 | / | / | / |
SiO2 | 1.1 | 0.23 | 0.5 | 20 | 13 | 8 |
TiO2 | 0.2 | 0.2 | 0.1 | 3 | 2.1 | 0.3 |
Fe2O3 | 0.5 | 0.05 | 0.05 | 2.5 | 2.0 | 0.58 |
A1203 | 0.4 | 0.42 | 0.1 | ≥75 | ≥85 | ≥90 |
CaO | 0.2 | 0.15 | 0.15 | 0.2 | 0.1 | 0.20 |
MgO | 2.5 | 2.4 | 2.4 | 0.2 | 0.1 | 0.06 |
Na2O | 0.03 | 0.01 | 0.01 | 0.6 | 0.5 | 0.3 |