| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Defects and Properties of Cast Metals
|
| Presentation Title |
Slag Entrainment and Entrapment Defects in Continuous Casting of Steel Slabs |
| Author(s) |
Seong-Mook Cho, Brian G. Thomas |
| On-Site Speaker (Planned) |
Seong-Mook Cho |
| Abstract Scope |
Continuous casting with mold powder is the best process for high-quality steel products. The powder melts on top of the molten steel in the mold to prevent reoxidation and lubricate the solidifying steel shell against the mold walls during casting. However, droplets of surface liquid slag entrained into the molten steel pool due to excessive or abnormal high surface velocity, or the entrapment of surface slag due to sudden or severe level fluctuations can lead to critical defects in the final product. Such slag entrainment and entrapment phenomena are investigated in this work using advanced computational modeling, lab-scale model experiments and plant measurements. This work reveals the mechanisms of slag defect formation due to unstable surface flow and interface movement in the mold region during continuous casting of steel slabs. This has important implications for choosing process conditions to improve quality, and contains useful insights for the metals processing community. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Modeling and Simulation, Process Technology |