CAST Type CNC Exchange Nozzle
There are two kinds of forming methods of Tundish nozzle outer layer material, one is press forming (hydraulic press forming) , the other is pouring forming (shaking table pouring vibration forming) .
There are two kinds of forming methods of Tundish nozzle outer layer material, one is press forming (hydraulic press forming) , the other is pouring forming (shaking table pouring vibration forming) .
CNC Quick Change nozzle a quick change Tundish nozzle, the production of this product is currently used more is pouring molding. In the casting process, the CNC Iron Shell is used as the peripheral die and the Zirconia insert is fixed into the CNC Iron Shell. The castable is then added and vibrated to form the mould. After natural drying, mold is removed and sanded.
The production process of casting type CNC quick change nozzle is relatively simple, and the outer material is plate-like corundum castable with high alumina content.
Zirconia Inserts Tundish Nozzle Outside | ||||||
CT-PMD1 | CT-PMD2 | CT-PMD3 | CTAL75 | CTAL85 | CTAL95 | |
Physical Properties | ||||||
Apparent Porosity (%) | 11-12 | 8-10 | 6-8 | 20 | 18 | 16 |
Bulk Density (g/cm3) | ≥4.9 | ≥5.2 | ≥5.3 | 2.6 | 2.8 | 3.0 |
Chemical Analysis (%) | ||||||
ZrO2 + HfO2 | ≥94.0 | ≥95.5 | ≥96 | / | / / | |
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 |
Al2O3 | 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 |
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