Refractory Tundish Zirconia Nozzle Inserts used for exchangable nozzle
Refractory Tundish Zirconia Nozzle Inserts used for exchangable nozzle
Long Keter supplying a comprehensive range of zirconia inserts mainly used in continuous casting of steel billets.
The inserts ,which was known as LKZN series, is magnesia stabilised & high density,can impart excellent erosion resistance even in the most severe casting environments.
Consistent casting speeds are achieved and the products have a high resistance to oxygen lancing.
Key Features of LKZN series are
• Extended casting sequences
• Controlled and consistent casting speeds
• High resistance to oxygen lancing
• More consistent re-stranding
• Use temperature up to 2400 ℃
• High density
• Low thermal conductivity (20% than of alumina)
• Chemical inertness
• Resistance to molten metals
• Ionic electrical conduction
• Wear resistance
• High fracture toughness
• High hardness
Zirconia inserts Application:
Using for metering nozzle, tundish upper nozzle, quick nozzle change upper nozzle and lower nozzle, and other special-shaped nozzle for steel making continuous casting.
|
Product Data |
LKZN-L |
LKZN-M |
LKZN-H |
|
Physical Properties |
|||
|
Apparent Porosity (%) |
11-12 |
8-10 |
6-8 |
|
Bulk Density (g/cm3) |
≥4.9 |
≥5.2 |
≥5.3 |
|
Chemical Analysis(%) |
|
|
|
|
ZrO2 + HfO2 |
≥94.0 |
≥95.5 |
≥96.0 |
|
SiO2 |
1.1 |
0.23 |
0.5 |
|
TiO2 |
0.2 |
0.2 |
0.1 |
|
Fe2O3 |
0.5 |
0.05 |
0.05 |
|
Al2O3 |
0.4 |
0.42 |
0.1 |
|
CaO |
0.2 |
0.15 |
0.15 |
|
MgO |
2.5 |
2.4 |
2.4 |
|
Na2O |
0.03 |
0.01 |
0.01 |
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