1. 安徽工业大学冶金工程学院，安徽 马鞍山 2430022. 湖州久立永兴特种合金材料有限公司，浙江 湖州 3130033. 中钢集团马鞍山矿山研究院有限公司，安徽 马鞍山 243000
收稿日期:2019-02-26修回日期:2019-04-17出版日期:2019-12-22发布日期:2019-12-22通讯作者:常立忠Effect of mould rotation on inclusions in ESR ingot
Lizhong CHANG1*, Kaihua CHANG1, Xiongming ZHU2, Jiashun CHEN1, Gang GAO1,31. School of Metallurgy Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, China2. Huzhou Jiuli Yongxing Special Alloy Material Co., Ltd., Huzhou, Zhejiang 313003, China3. Sinosteel Ma'anshan Institute of Mining Research Co., Ltd., Ma'anshan, Anhui 243000, China
Received:2019-02-26Revised:2019-04-17Online:2019-12-22Published:2019-12-22Contact:Li-zhong -CHANG 摘要/Abstract
摘要： 基于自行设计的双极串联结晶器旋转电渣重熔炉，采用ASPEX全自动夹杂物分析仪研究了结晶器转速对M2电渣锭洁净度的影响。结果表明，不论结晶器是否旋转，电渣锭中的夹杂物组成基本不变，主要由Al2O3, Al2O3–MnS, Al2O3–SiO2–CaO–MnS, MgO–Al2O3–SiO2–CaO–MnO, MgO–Al2O3–SiO2–CaO–TiO2–MnS, Al2O3–SiO2–CaO–MnO–TiO2组成，其中以Al2O3, Al2O3–SiO2–CaO–MnO–TiO2和Al2O3–MnS数量最多。结晶器静止电渣重熔时，钢中的夹杂物数量较多，且存在50 ?m以上的大颗粒夹杂物，而结晶器转速为6和13 r/min时，夹杂物数量减少，大颗粒夹杂含量大大降低；转速增至19 r/min时，夹杂物数量及尺寸又进一步增加，同时钢中全氧含量、氮含量明显增加。电渣锭中大颗粒夹杂物得以去除的主要原因是结晶器旋转导致金属自耗电极末端的熔融层变薄、熔滴尺寸变小，渣–金接触面积增大，促进了夹杂物被熔渣去除；过快的转速会增加自耗电极氧化、减少渣–金接触时间，从而降低电渣重熔过程的精炼能力。
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常立忠 常凯华 朱雄明 陈佳顺 高岗. 电渣重熔过程结晶器旋转对钢中夹杂物的影响[J]. 过程工程学报, 2019, 19(6): 1186-1196.
Lizhong CHANG Kaihua CHANG Xiongming ZHU Jiashun CHEN Gang GAO. Effect of mould rotation on inclusions in ESR ingot[J]. Chin. J. Process Eng., 2019, 19(6): 1186-1196.
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