| KR-BOF-LF-CC生产汽车大梁钢LG510L洁净度的研究 |
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| 作者姓名： | 彭其春 邹 健 邱 雷 周明伟 彭明耀 毕建民 |
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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;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;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;湖南华菱涟源钢铁集团有限公司,湖南 娄底,417009;湖南华菱涟源钢铁集团有限公司,湖南 娄底,417009;湖南华菱涟源钢铁集团有限公司,湖南 娄底,417009 |
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| 摘 要： | 通过氧氮分析、金相分析、大样电解法、扫描电镜及能谱分析等,研究采用KR-BOF-LF-CC工艺生产的汽车大梁钢LG510L的洁净度。结果表明,铸坯中平均TO]和氮含量分别为29.20×10-6和38.80×10-6;钢中显微夹杂物和大型夹杂物数量都随着各工序的不断进行大体呈递减趋势;钙处理前主要显微夹杂物为Al2O3,经过钙处理后,夹杂物发生变性,主要为CaO-Al2O3;铸坯中大型夹杂物主要是SiO2和硅铝酸盐,来源于脱氧产物及其与耐火材料或炉渣反应的产物。
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| 关 键 词： | 汽车大梁钢 LG510L 洁净度 T[O] 氮含量 夹杂物 |
| 收稿时间： | 2013/12/16 0:00:00 |
Cleanliness of automobile frame steel LG510L produced by KR-BOF-LF-CC process |
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| Authors: | Peng Qichun Zou Jian Qiu Lei Zhou Mingwei Peng Mingyao and Bi Jianmin |
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| Institution: | Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology,Wuhan 430081, China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology,Wuhan 430081, China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology,Wuhan 430081, China;Hunan Hualing Lianyuan Iron and Steel Corporation, Loudi 417009, China;Hunan Hualing Lianyuan Iron and Steel Corporation, Loudi 417009, China;Hunan Hualing Lianyuan Iron and Steel Corporation, Loudi 417009, China |
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| Abstract: | By means of oxygen and nitrogen analyzer , metallographic examination , SLIM E , SEM , EDS ,etc ,the cleanliness of automobile frame steel LG510L produced by the KR-BOF-LF-CC process was studied .The result shows that the average T O] and nitrogen content in the slab are 29 .20 × 10-6 and 38 .80 ×10-6 and the numbers of micro-inclusions and large inclusions in the steel are reduced steadily with each process .The micro-inclusions before calcium treatment are mainly Al2 O3 and after calcium treatment ,the inclusions are modified and transformed into CaO-Al2 O3 .The large inclusions in the slab are mainly SiO 2 and aluminosilicate ,which are mainly deoxidation products and their reac-tion with refractories or slag . |
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| Keywords: | automobile frame steel LG510L cleanliness T[O] nitrogen content inclusion |
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