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| 板坯连铸中间包气幕挡墙夹杂物去除的研究 | |
| 引用本文： | 刘国梁,苑品,季晨曦,马威,崔衡,崔阳.板坯连铸中间包气幕挡墙夹杂物去除的研究[J].炼钢,2012,28(3):57-60,69. |
| 作者姓名： | 刘国梁 苑品 季晨曦 马威 崔衡 崔阳 |
| 作者单位： | 1. 首钢技术研究院,北京,100043 2. 北京科技大学冶金与生态工程学院,北京10083 3. 首钢迁安钢铁有限责任公司,河北迁安,064404 |
| 摘 要： | 分析了中间包不加气幕挡墙和加气幕挡墙吹氩时夹杂物上浮速度与气泡直径、夹杂物直径和密度的关系。气泡尺寸对夹杂物的上浮速度影响比较明显,夹杂物的密度对上浮速度的影响不大。进行了中间包气幕挡墙的工业试验,试验表明:中间包底吹气对钢液中小夹杂物的去除作用不明显,而对大型的夹杂物去除效果显著。 |
| 关 键 词： | 中间包 气幕挡墙 气泡 夹杂物 |
Study on the inclusion removal by gas curtain in slab continuous casting tundish |
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| LIU Guo-liang,YUAN Pin,JI Chen-xi,MA Wei,CUI Heng,CUI Yang.Study on the inclusion removal by gas curtain in slab continuous casting tundish[J].Steelmaking,2012,28(3):57-60,69. | |
| Authors: | LIU Guo-liang YUAN Pin JI Chen-xi MA Wei CUI Heng CUI Yang |
| Affiliation: | 1(1.Shougang Research Institute of Technology,Beijing 100043,China; 2.School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;3.Shougang Qian’an Iron & Steel Co.,Ltd.,Qian’an 064404,China) |
| Abstract: | The relationships among the inclusion upward float rate,diameter of argon bubbles and diameter and density of inclusion particles with or without establishment of the gas curtain in the tundish in the process of argon bubbling are analyzed.The results show that the influence of the diameter of the gas bubbles on the upward float rate of the inclusions is apparent,whereas the effect of density of the inclusions on the float rate is of little significance.Results of industrial experiments show that tundish bottom gas bubbling is very useful for large size inclusion removal in the liquid steel,but it’s not so apparent for removal of the medium and small size inclusions. |
| Keywords: | tundish gas curtain bubble inclusion |
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