Vol.29 Suppl.1 王静松等：镁芯包芯线处理钢水夹杂物变性实验 …25· 800 600 (a) Al (b) Al 600 兰4m 400 Mg 本 0 Fe 200F Fe 200 Mn Fe 00 Ca 人心 04 0 2 4 6 3 45 6 7 8 E/keV E/keV 图7 Al2O;MnS复合夹杂物能谱分析.(a)未加镁处理；(b)加镁0.05g/kg钢水 3结论 [3)王厚听，姜周华，李阳，等.喂SiCaBa包芯线对钢中夹杂物 变性的影响.钢铁研究学报，2004,16(2：19 (1)采用镁芯包芯线处理，加镁过程比采用普 [4】王恒，知水.镁系合金在钢水精炼中作用的研究.钢铁研究学 通结构含镁包芯线平稳，镁可以有效地加入钢水中， 报，1989，增刊：21 并获得比较稳定的吸收率。 [5]Saxena S K.Production of ultra-clean steels with better me- (2)经过镁处理后，钢中夹杂物类型、形态和 chanical properties with magnesium treatment.1996 Steelmaking Conference Proceeding,1996,89 尺寸明显变化.大尺寸的A12O3夹杂转变为细小的 [6)]李博知.用纯颗粒镁脱硫技术.中国治金，2005,15(9)：26 MgO-Al2O3,同时使钢中Al2O3MnS复合夹杂以细 [7】赵志玲.铁水脱硫工艺开发的新进展.包铜科技，2001,27(4)： 小的Al2O3 MgS.MnS复合夹杂的形式存在. 16 [8]Gao X W,Xue Q G,Zhao Z D,et al.Development and industrial 参考文献 application of a novel coated Mg-cored wire.2006 Science and [1】李正邦.超洁净钢的新进展.材料与治金学报，2002,111(13) Processing of Cast Iron XIII,2006,434 161 [2刘中柱，蔡开科.纯净钢生产技术，钢铁，2000,35(264 Experimental study on inclusion modification in the steel by Mg cored wire feeding process WANG Jingsong2),XU Jianguo,SUN Wei,CAO Lijun,ZHANG Hui,SUN Zhikun, ZHANG Hengli,XUE Qingguo 1)Metallurgical and Ecological Engineering School,University of Sciences and Technology Beijing,Beijing 100083,China 2)Post-doctoral Station of USTB,Post-doctoral Work Station of Laigang Group,Shandong 211074,China 3)Bao Tou Wenxin Industrial Co.Ltd.,Baotou 014010,China ABSTRACT The process of Mg-cored wire feeding was investigated.The Mg cored wire with special structure was applied in inclusion modification in steel.The process of feeding the Mg-cored wire is more smoothly than feeding the Mg-wire with old structure in steel treating at 1600C,the absorption ratio is higher and more stable than that of the old process.After being treated by Mg-cored wire feeding,the Al2O3 inclusions with the big size changes to the fine particles of MgO.Al2O3 inclusions.At same time,the Al2O3MnS inclusions changes to the Al2O;MgS-MnS inclusions. KEY WORDS steel;inclusion modification;Mg cored wire;wire feedingVol.29 Suppl.1 王静松等：镁芯包芯线处理钢水夹杂物变性实验 • 25 • 图 7 Al2O3·MnS 复合夹杂物能谱分析．(a)未加镁处理；(b) 加镁 0.05 g/kg 钢水 3 结论 (1) 采用镁芯包芯线处理，加镁过程比采用普 通结构含镁包芯线平稳，镁可以有效地加入钢水中， 并获得比较稳定的吸收率． (2) 经过镁处理后，钢中夹杂物类型、形态和 尺寸明显变化．大尺寸的 Al2O3 夹杂转变为细小的 MgO⋅Al2O3，同时使钢中 Al2O3⋅MnS 复合夹杂以细 小的 Al2O3⋅MgS⋅MnS 复合夹杂的形式存在． 参 考 文 献 [1] 李正邦．超洁净钢的新进展．材料与冶金学报, 2002, l11(13): 161 [2] 刘中柱，蔡开科．纯净钢生产技术，钢铁，2000, 35(2): 64 [3] 王厚昕，姜周华，李阳，等．喂 SiCaBa 包芯线对钢中夹杂物 变性的影响．钢铁研究学报，2004, 16(2): 19 [4] 王恒，知水．镁系合金在钢水精炼中作用的研究．钢铁研究学 报，1989, 增刊：21 [5] Saxena S K. Production of ultra-clean steels with better me￾chanical properties with magnesium treatment. 1996 Steelmaking Conference Proceeding, 1996, 89 [6] 李博知．用纯颗粒镁脱硫技术．中国冶金，2005, 15(9): 26 [7] 赵志玲．铁水脱硫工艺开发的新进展．包钢科技，2001, 27(4): 16 [8] Gao X W, Xue Q G, Zhao Z D, et al. Development and industrial application of a novel coated Mg-cored wire. 2006 Science and Processing of Cast Iron XIII, 2006, 434 Experimental study on inclusion modification in the steel by Mg cored wire feeding process WANG Jingsong1,2), XU Jianguo2), SUN Wei1), CAO Lijun1), ZHANG Hui1), SUN Zhikun1), ZHANG Hengli3), XUE Qingguo1) 1) Metallurgical and Ecological Engineering School, University of Sciences and Technology Beijing, Beijing 100083, China 2) Post-doctoral Station of USTB, Post-doctoral Work Station of Laigang Group, Shandong 211074, China 3) Bao Tou Wenxin Industrial Co. Ltd., Baotou 014010, China ABSTRACT The process of Mg-cored wire feeding was investigated. The Mg cored wire with special structure was applied in inclusion modification in steel. The process of feeding the Mg-cored wire is more smoothly than feeding the Mg-wire with old structure in steel treating at 1600°C, the absorption ratio is higher and more stable than that of the old process. After being treated by Mg-cored wire feeding, the Al2O3 inclusions with the big size changes to the fine particles of MgO⋅Al2O3 inclusions. At same time, the Al2O3⋅MnS inclusions changes to the Al2O3⋅MgS⋅MnS inclusions. KEY WORDS steel; inclusion modification; Mg cored wire; wire feeding