| 钙处理钢中夹杂物行为的研究 |
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| 引用本文： | 夏春祥,王春锋,朱万军,何金平.钙处理钢中夹杂物行为的研究[J].武钢技术,2012,50(3):8-12. |
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| 作者姓名： | 夏春祥 王春锋 朱万军 何金平 |
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| 作者单位： | 1. 武钢条材总厂CSP分厂,湖北武汉,430083
2. 武钢研究院,湖北武汉,430080 |
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| 摘 要： | 为改善武钢CSP产线钢水的连浇性,通过工业试验对钙处理钢中夹杂物的变化进行了研究,试验结果表明,钙处理后,钢中夹杂由Al2O3和MnS转变为铝酸钙盐或CaO-Al2O3-MgO-CaS复合夹杂,由于钙处理对夹杂物的聚合变性作用,钢中夹杂物直径不小于5μm的比例增加。通过热力学计算,分析了钙处理使夹杂物变性的条件。根据试验结果对工艺进行了优化,钢水结瘤断浇次数由3.6次/月降低到1.5次/月。
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| 关 键 词： | CSP 钙处理 夹杂物 工艺优化 |
Research on behavior of inclusions in calcium treatment |
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| XIA Chun-xiang,WANG Chun-feng,ZHU Wan-jun,HE Jin-ping.Research on behavior of inclusions in calcium treatment[J].Wisco Technology,2012,50(3):8-12. |
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| Authors: | XIA Chun-xiang WANG Chun-feng ZHU Wan-jun HE Jin-ping |
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| Affiliation: | 1. CSP Mill of WISCO, Wuhan 430083,China; 2. R＆D Center of WISCO , Wuhan 430080,China) |
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| Abstract: | In order to improve the continuous casting of molten steel for the CSP production line of Wuhan Iron and Steel Corporation（WISCO）, the change of inclusions in calcium treatment steel is studied by industry experiment. The results show that the Al2O3 and MnS inclusions in the molten steel are modified into compound inclusions composed of calcium aluminates and CaO-Al2 O3-MgO-CaS after calcium treatment. Because of polymeration of the inclusions by Ca treatment the ratio of inclusions （Ф≥5 um ） in steel increases. By thermodynamic calculation the conditions of inclusions modification by calcium treatment are analyzed. The process is optimized on the basis of the experiment results. The frequency of casting break due to clogging is decreased tol. 5 times per month from 3. 6 times per month. |
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| Keywords: | CSP calcium treatment inclusions process optimization |
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