| BOF-LF-CSP与BOF-渣洗-CSP工艺生产Q235B钢中夹杂物对比分析 |
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| 引用本文： | 郑一见,梁新亮,尹振芝,程绘兵,王庆祥. BOF-LF-CSP与BOF-渣洗-CSP工艺生产Q235B钢中夹杂物对比分析[J]. 武汉科技大学学报, 2013, 36(6): 416-419 |
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| 作者姓名： | 郑一见 梁新亮 尹振芝 程绘兵 王庆祥 |
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| 作者单位： | 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081;涟源钢铁集团有限公司炼轧厂,湖南 娄底,417000;涟源钢铁集团有限公司炼轧厂,湖南 娄底,417000;涟源钢铁集团有限公司炼轧厂,湖南 娄底,417000;武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081 |
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| 基金项目： | 湖南涟源钢铁集团有限公司科研资助项目(2011-38#). |
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| 摘 要： | 采用金相显微镜对BOF-LF-CSP与BOF-渣洗-CSP工艺所生产Q235B钢中非金属夹杂物数量和组成进行对比分析。结果表明,两工艺过程中各粒径颗粒夹杂物在总体上均减少,且粒径越小,其趋势越加明显;两工艺夹杂物总去除量分别为73.5%和72.3%,其中大部分夹杂物在转炉终点至LF前阶段被去除。BOF-渣洗-CSP工艺中夹杂物以Al2O3、FeS·MnS、CaO为主。两工艺过程中夹杂物演变规律相似,出钢渣洗效果明显,由此表明BOF-渣洗-CSP工艺生产可行。
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| 关 键 词： | Q235B钢 LF精炼 BOF-LF-CSP工艺 渣洗 夹杂物 |
| 收稿时间： | 2013-08-27 |
Inclusions in Q235B steel produced by BOF-LF-CSP and by BOF-slag washing-CSP process:a contrastive study |
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| Zheng Yijian,Liang Xinliang,Yin Zhenzhi,Cheng Huibing and Wang Qingxiang. Inclusions in Q235B steel produced by BOF-LF-CSP and by BOF-slag washing-CSP process:a contrastive study[J]. Journal of Wuhan University of Science and Technology, 2013, 36(6): 416-419 |
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| Authors: | Zheng Yijian Liang Xinliang Yin Zhenzhi Cheng Huibing Wang Qingxiang |
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| Affiliation: | Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China;Steel-making and Steel-rolling Plant, Lianyuan Iron and Steel Corporation, Loudi 417000, China;Steel-making and Steel-rolling Plant, Lianyuan Iron and Steel Corporation, Loudi 417000, China;Steel-making and Steel-rolling Plant, Lianyuan Iron and Steel Corporation, Loudi 417000, China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | The nonmetallic inclusions in Q235B steel produced by the process of BOF-LF-CSP and by BOF-slag washing-CSP were compared by means of metallographic microscope. The results show that the quantity of inclusions of each size with both processes is on the decline, and the smaller the size, the more obvious the tendency. About 73.5% inclusions in BOF-LF-CSP and 72.3% in BOF-slag washing-CSP have been removed, and a large proportion of inclusions were removed during the period from tapping to pre-LF. The majority of inclusions in the BOF-slag washing-CSP process are Al2O3, FeS·MnS and CaO. The inclusions evolution in both processes are similar, the effect of slag washing is obvious, and the BOF-slag washing-CSP is feasible. |
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| Keywords: | Q235B steel LF refining BOF-LF-CSP process slag washing inclusion |
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