Open Access
Table 5
Problem analyzing.
| Problem | Effecting parameter | Solution |
|---|---|---|
| Air/Gas bubble | Free stream Tundish misplacement Oversize nozzles Higher inlet velocity |
Submerged nozzle*, Jet killer* Tool for bubble control+ Tool for bubble control+ Less nozzle plug, slot+, Jet killer* |
| Asymmetric flow | Asymmetric nozzle plug Nozzle misalignment Tundish misplacement |
Symmetric nozzle plug+, slot* Tool for bubble control+, slot* Tool for bubble control+, slot* |
| Meniscus disturbances | Free jets Asymmetric nozzle plug Tundish height adjustment Oversize nozzles Nozzle misalignment |
Submerged jets* Symmetric nozzle plug+, slot* Tool for bubble control+, slot* Tool for bubble control+, slot* Tool for bubble control+, slot* Tool for bubble control+, slot* |
| Turbulence | Nozzle plug (higher inlet velocity) Tundish height adjustment (longer distance) Oversize nozzles (higher inlet velocity) |
Slot*, Symmetric nozzle plug+ Slot*, Tool for bubble control+ Slot*, Tool for bubble control+ |
| Recirculation | Nozzle plug Tundish height adjustment Nozzle misalignment |
Jet killer*, Slot* Tool for bubble control+, slot* Tool for bubble control+, slot* |
| Dead Zone | Nozzle plug Nozzle misalignment |
Slot*, avoidant to plug in the outermost nozzle Tool for bubble control+, slot* |
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