|
|
|
| Fluid flow, solidification and inclusion distribution in a continuous casting mold |
| |
| |
|
|
|
|
Abstract A coupled mathematical model on moment, energy and mass transport is developed to investigate fluid flow, heat transfer, solidification, solute transfer and inclusion collision-growth in the continuous casting mold. Numerical results show that the temperature of molten steel, carbon and inclusion in the molten steel have the similar spatial distribution as the fluid flow in the continuous caster due to the flow behavior of molten steel. Their spatial distribution can be divided into the upper and lower recirculation zones. But their distributions have their own characteristics. Near the center of the recirculation zones, the temperature of molten steel is lower, the carbon concentration is higher and the volume concentration and number density of inclusion is lower. Near the meniscus, the temperature and the volume concentration and number density of inclusion is lower, and the carbon concentration is higher. Because the solidified shell is re-melted near the impinging point, there is the abrupt transition for inclusion concentration and number density distribution in the solidified shell at the mold exit.
|
|
Received: 03 July 2009
|
|
|
|
| [1] |
HOU Xin-mei, LIU Yun-song, WANG En-hui. Effect of ladle-lining refractory on non-metallic inclusions in steel[J]. Iron and Steel, 2020, 55(6): 15-24. |
| [2] |
YU Hui-xiang, PAN Ming, YANG De-xin. Behavior of inclusions in ultra-low carbon IF steel during deoxidation and alloying process[J]. Iron and Steel, 2020, 55(6): 46-53. |
| [3] |
NIU Kai-jun, YANG Wen, ZHANG Li-feng, CHU Yan-ping, ZHANG Hong-qi, GUO Zi-qiang. Thermodynamics and industrial practice of formation of inclusions during solidification of tire cord steels[J]. Iron and Steel, 2020, 55(6): 61-67. |
| [4] |
LI Lan-xin1,WANG Min1,JUAN Rong-fei1,BAO Yan-ping1,YANG Jin2. Distribution characteristics of oxides and sulfide inclusions in key areas of gear steel forgings[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(5): 370-376. |
| [5] |
QIN Zheng-feng, XUE Zheng-liang, LI Jin-bo, LI Bo-si. Origin of large spherical or bar-shaped inclusions in calcium treated steel[J]. Iron and Steel, 2020, 55(5): 31-38. |
| [6] |
WANG Yi, ZHANG Li-feng, REN Ying, REN Qiang. Mechanism of inclusion evolution during refining process of 37Mn5 steel production[J]. Iron and Steel, 2020, 55(5): 39-44. |
|
|
|
|
2010, Vol. 45 
