| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Defects and Properties of Cast Metals
|
| Presentation Title |
Control of Surface Longitudinal Cracks during the Continuous Casting of Steel |
| Author(s) |
Fengkang Wang, Jie Zeng, Wanglin Wang |
| On-Site Speaker (Planned) |
Fengkang Wang |
| Abstract Scope |
The surface longitudinal cracks have been one of the most serious defects in the cast products. In this study, the surface longitudinal cracks are mainly attributed to poor lubrication for mold flux and low heat transfer by crack, heat transfer of mold and properties of mold flux analysis. Comparing with the original mold flux, properties of optimized mold flux had some changes: 1) the melting temperature of the optimized mold flux was decreased from 1174°C to 1142°C; 2) the wetting angle was increased from 38.64° to 49.96°, which decreased the interfacial wettability; 3) the viscosity (1300°C) was decreased from 0.684 Pa-s to 0.398 Pa·s, which had a better lubrication effect; 4) the response temperature decreased from 389°C to 356°C, which resulted in better heat control. The optimized mold flux is used in actual production and significantly reduces the incidence of longitudinal cracking. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Process Technology, Hydrometallurgy |