金属学报  2006, Vol. 42 Issue (11): 1143-1148

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钢包内喷嘴与透气砖吹氩去夹杂水模型研究

郑淑国 朱苗勇

东北大学材料与冶金学院; 沈阳 110004

Water Model Study on Removing Inclusions in a Ladle With Argon Injected Through

ZHENG Shuguo; ZHU Miaoyong

School of Materials and Metallurgy; Northeastern University; Shenyang 110004

郑淑国; 朱苗勇 . 钢包内喷嘴与透气砖吹氩去夹杂水模型研究[J]. 金属学报, 2006, 42(11): 1143-1148 .
, . Water Model Study on Removing Inclusions in a Ladle With Argon Injected Through[J]. Acta Metall Sin, 2006, 42(11): 1143-1148 .

摘要 参考文献 相关文章 Metrics 全文: PDF(785 KB)   摘要: 钢包内吹氩过程夹杂物的去除效果直接影响钢产品的质量。本文通过选择乳状液滴模拟夹杂物和偏心底吹钢包水模型实验，考察了喷嘴和透气砖吹气条件下时间、吹气量对夹杂物去除行为的影响规律。结果表明：较小气量和较大气量分别在8 min和16 min内可将绝大部分的模拟夹杂物去除，28 min内可将能够去除的模拟夹杂物几乎全部去除；喷嘴吹气时存在一个最佳去夹杂气量，而透气砖吹气时较小气量的去夹杂效果要好于较大气量，且在一定的气量范围内通过透气砖吹气的去夹杂效果要明显好于通过喷嘴吹气。 关键词 ： 钢包,  偏心底吹,  乳状液滴,  夹杂物,  水模     Abstract：The removal efficiency of non-metallic inclusions from molten steel in gas-stirred ladles will directly affect the quality of steel product. In the present work, the effects of time and gas flowrate on inclusion removal in a ladle with eccentric bottom gas injected through nozzle and porous plug were investigated by choosing emulsion drops simulated as inclusions in a water model. The results show that most of the inclusions can be removed in eight minutes with smaller flowrates, while sixteen minutes needed with larger flowrates. All the inclusions which have the possibility to be removed almost disappeared from the system in twenty-eight minutes. 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