管线钢生产中LF精炼炉的冶金效果分析

张彩军; 蔡开科; 袁伟霞

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管线钢生产中LF精炼炉的冶金效果分析

1. 河北理工大学冶金与能源学院, 河北唐山 063009;
2. 北京科技大学冶金与生态工程学院, 北京 100083;
3. 武汉钢铁(集团)公司技术中心, 湖北武汉 430083

详细信息

作者简介:
张彩军(1971-),男,河北武安人,副教授,博士,主要从事钢中夹杂物及钢质量研究。

中图分类号: TF769.2
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- 文章访问数: 92
- HTML全文浏览量: 14
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- 被引次数: 0
出版历程
- 收稿日期: 2006-01-20
- 网络出版日期: 2023-12-06

Metallurgical Effect of Ladle Furnace in Production Process of Pipeline Steel

1. College of Metallurgy and Energy, Hebei Polytechnic University, Tangshan 063009, Hebei, China;
2. School of Metallurgy and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3. Technical Center of WISCO, Wuhan 430083, Hubei, China

摘要

摘要: 对管线钢生产中LF炉的脱硫、净化钢液及夹杂物变性等冶金功能进行了试验研究。结果表明:①武钢管线钢生产中,LF炉的平均脱硫率达到了55%,全氧及显微夹杂物的去除率分别为43.3%,44.4%,LF炉的脱硫及净化钢液的效果良好;②硅钙合金的加入,不仅把蔟状的Al₂O₃夹杂变成球状、低熔点的钙铝酸盐夹杂,同时消除了条状硫化锰夹杂,这对管线钢提高抗HIC性能非常有利;③硅钙线吨钢加入量为0.7 kg时夹杂物变性效果不理想,应适当增加硅钙线的加入量。
- LF精炼 /
- 管线钢 /
- 脱硫 /
- 夹杂物 /
- 钙处理
Abstract: The effect of desulfurizing,purifying and modifying inclusion at ladle furnace for pipeline steel was investigated.The results show the average desulfurization percentage was 55%,the removal percentage of total oxygen and micro inclusion were 43.3% and 44.4% respectively.The effects of desulfurizing and purifying were satisfactory.After the addition of calcium silicon alloy,the cluster alumina were modified into spherical calcium aluminate with low melting point,at the same time,the liner MnS inclusion were eliminated,and so improve the resistance against hydrogen induced cracking(HIC).When the addition of calcium-silicon wire was 0.7 kg/t,the inclusion modification was insufficient,so the addition should be increased appropriately.
- ladle furnace refining /
- pipeline steel /
- desulfurization /
- inclusion /
- calcium treatment