| 连铸中间包内夹杂物去除行为的水模型研究 |
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| 引用本文： | 张胜军,郑淑国,朱苗勇.连铸中间包内夹杂物去除行为的水模型研究[J].北京科技大学学报,2007,29(8):781-784,826. |
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| 作者姓名： | 张胜军 郑淑国 朱苗勇 |
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| 作者单位： | 东北大学材料与冶金学院,沈阳,110004 |
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| 摘 要： | 通过选择乳状液滴模拟夹杂物和连铸中间包水模型实验,考察了控流装置、浇铸速度、夹杂物粒径对中间包内夹杂物去除行为的影响规律.结果表明:挡墙-挡坝组合控流夹杂物去除效果最佳,中间包内强湍流区夹杂物的碰撞聚合以及向上和表面流速的增加是主因;中间包注流区加入抑湍器,虽然其流体流动特征发生改变,但对夹杂物去除率的影响并不显著;较高的浇铸速度下,单纯靠控流装置的优化已不能很好地改善夹杂物的去除效果.
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| 关 键 词： | 连铸中间包 流场 夹杂物 水模型 连铸中间包 夹杂物去除 行为 水模型 研究 tundish continuous casting inclusion removal mechanism model study 去除效果 改善 优化 去除率 发生 流动特征 流体 抑湍器 湍流区 表面流速 |
| 修稿时间： | 2007-03-042007-05-12 |
Water model study on the mechanism of inclusion removal in a continuous casting tundish |
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| ZHANG Shengjun,ZHENG Shuguo,ZHU Miaoyong.Water model study on the mechanism of inclusion removal in a continuous casting tundish[J].Journal of University of Science and Technology Beijing,2007,29(8):781-784,826. |
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| Authors: | ZHANG Shengjun ZHENG Shuguo ZHU Miaoyong |
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| Institution: | Materials and Metallurgy School, Northeastern University, Shenyang 110004, China |
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| Abstract: | The effects of flow control devices, casting speed of liquid steel and inclusion size on inclusion removal in a continuous casting tundish were investigated by choosing emulsion drops to simulate inclusions in a water model. The results show that the efficiency of inclusion removal in the tundish with weir and dams is relatively high due to the collision and aggregation of inclusions in high turbulence region and the improvement of flow field in the tundish. Although adding turbulence inhibitor into the tundish changes fluid flow little in pouring region, it has not much effect on the efficiency of inclusion removal. It seems to be difficult to improve the efficiency of inclusion removal only by optimizing the flow control devices in the tundish with high casting speed of liquid steel. |
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| Keywords: | continuous casting tundish flow filed inclusion water modeling |
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