| 钙处理工艺对低碳冷镦钢洁净度的影响 |
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| 引用本文： | 高振波,梁海庆,吴坚,胡义贵,李颂,杜松林.钙处理工艺对低碳冷镦钢洁净度的影响[J].北京科技大学学报,2007,29(8):785-788. |
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| 作者姓名： | 高振波 梁海庆 吴坚 胡义贵 李颂 杜松林 |
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| 作者单位： | 1. 马钢第三钢轧总厂,马鞍山,243000
2. 马钢第三钢轧总厂,马鞍山,243000;北京科技大学冶金与生态工程学院,北京,100083 |
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| 摘 要： | 对钙处理工艺过程中夹杂物变性处理需要的钙含量以及硫化钙的生成条件进行了热力学计算,确定了LF处理后硫含量需控制的上限和钙处理后钙含量所需的下限;实验研究了温度和喂钙线量对钙收得率的影响以及钙处理后弱吹氩时间与钢中钙和铝的损失的关系.以理论计算和实验结果为基础,优化钙处理工艺,保证LF处理后钢液含硫不大于0.007%(质量分数),按每炉钢喂钙线100～200 m、喂钙线后弱吹氩25 min,最终低碳冷镦钢夹杂物合格率达提高到92%.
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| 关 键 词： | 冷镦钢 钙处理 弱吹氩 洁净度 夹杂物 处理工艺 低碳 冷镦 钢洁净度 影响 steel cold carbon treatment calcium 合格率 钢夹杂物 质量分数 含硫 钢液 优化 结果 理论计算 关系 损失 |
| 修稿时间： | 2007-03-112007-05-20 |
Effect of calcium treatment on the cleanliness of low carbon cold heading steel |
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| GAO Zhenbo,LIANG Haiqing,WU Jian,HU Yigui,LI Song,DU Songlin.Effect of calcium treatment on the cleanliness of low carbon cold heading steel[J].Journal of University of Science and Technology Beijing,2007,29(8):785-788. |
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| Authors: | GAO Zhenbo LIANG Haiqing WU Jian HU Yigui LI Song DU Songlin |
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| Institution: | 1. No. 3 Steel Making and Rolling Combination Mill, Masteel, Maanshan 243000, China; 2. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | The calcium content for inclusion distortion and the formation condition of sulfuric calcium in calcium treatment were calculated by thermodynamics method. The maximum content of sulfur after LF treatment and the minimum content of calcium after calcium treatment were determined. The effect of temperature and amount of feeding calcium on the yield of calcium and the relation between the soft argon blowing time after calcium treatment and the loss of calcium and aluminum were investigated. Based on calculation and experimental data, the process of calcium treatment was optimized, and the mass fraction of sulfur in steel after LF treatment is no more than 0. 007 %. For each heat, feeding 100 - 200 m calcium line and blowing soft argon for 25 minutes after calcium feeding, the percent of pass of inclusions in the cold heading steel can reach up to 92 %. |
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| Keywords: | cold heading steel calcium treatment soft argon blowing cleanliness inclusions |
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