The submerged entry nozzle continuous casting protects the liquid steel from being oxidized by the ambient air when it flows into the crystallizer from the tundish.
The submerged entry nozzle continuous casting protects the liquid steel from being oxidized by the ambient air when it flows into the crystallizer from the tundish. CH refractories submerged entry nozzle was well received by users with its good slag resistance, anti - blocking, long life, low accident rate and other excellent performance.
◆ Steel plant CCM casting
◆High strength,
◆Long service life
◆Customized size
◆Free mould charge
| Item | CH-JLT-A | CH-JBT | |||
| / | body | slag line | body | slag line | |
| Chemical component（%）≥ | Al2O3≥ | 40 | ----- | 45 | ----- |
| SiO2≤ | 20 | ------ | 15 | ----- | |
| C+SiC≥ | 25 | 13 | 22 | 13 | |
| ZrO2≥ | ----- | 70 | ------ | 75 | |
| Compression strength（MPa）≥ | 20 | 20 | 20 | 14 | |
| Cold bending strength（MPa）≥ | 6 | 5 | 8 | 5 | |
| Apparent porosity/%,≤ | 20 | 19 | 18 | 18 | |
| Bulk density（g/cm3）≥ | 2.2 | 3.4 | 2.3 | 3.55 | |
| Thermal shock(times)(1100℃water cooling)≥ | 5 | 5 | |||
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