| 260t复吹转炉底吹氮氩切换对终点氮含量的影响 |
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| 引用本文： | 刘文飞,李超,王富亮,李海峰,王传允,蔡清秀.260t复吹转炉底吹氮氩切换对终点氮含量的影响[J].鞍钢技术,2011(2):16-19. |
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| 作者姓名： | 刘文飞 李超 王富亮 李海峰 王传允 蔡清秀 |
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| 作者单位： | 鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁,营口,115007;鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁,营口,115007;鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁,营口,115007;鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁,营口,115007;鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁,营口,115007;鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁,营口,115007 |
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| 摘 要： | 在260 t顶底复吹转炉上对吹氧过程中的底吹模式进行了氮氩切换试验研究,并根据钢液脱氮和吸氮理论对试验结果进行了说明。试验结果表明,吹氧70%以内进行底吹氮氩切换对终点钢水氮含量没有影响;吹氧85%时进行底吹氮氩切换,氮气流量不大于16 m3/min时,对终点钢水氮含量影响不大;当氮气流量大于20 m3/min时,终点钢水氮含量增幅较大,超过50%;氮氩切换时间点及氮气流量应根据钢种而定。
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| 关 键 词： | 顶底复吹转炉 底吹模式 氮氩切换 终点氮含量 |
Influence of Nitrogen-argon Changing over Type Bottom Blowing on Controlling End-point Content of Nitrogen in Molten Steel Smelted by 260 t Combined Blown Converter |
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| Liu Wenfei,Li Chao,Wang Fuliang,Li Haifeng,Wang Chuanyun,Cai Qingxiu.Influence of Nitrogen-argon Changing over Type Bottom Blowing on Controlling End-point Content of Nitrogen in Molten Steel Smelted by 260 t Combined Blown Converter[J].Aisc Techniques,2011(2):16-19. |
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| Authors: | Liu Wenfei Li Chao Wang Fuliang Li Haifeng Wang Chuanyun Cai Qingxiu |
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| Affiliation: | Liu Wenfei,Li Chao,Wang Fuliang,Li Haifeng,Wang Chuanyun,Cai Qingxiu(Bayuquan Iron & Steel Subsidiary Co.of Angang Steel Co.,Ltd.,Yingkou 115007,Liaoning,China) |
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| Abstract: | Experimental study on nitrogen-argon changing over type bottom blowing process applied by the 260 t combined blown converter during oxygen blowing is carried out.The results are discussed and analyzed based on the theory of denitriding and nitrogen absorbing for liquid steel and nitrogen absorption.Analytical results show that there is no influence on end-point content of nitrogen in molten steel applied by nitrogen-argon changing over type bottom blowing process when oxygen blowing amount is within 70% and... |
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| Keywords: | top and bottom combined blown converter bottom blowing type nitrogen-argon changing over end-point content of nitrogen |
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