BOF-LF流程马口铁中显微夹杂物研究

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英文篇名：Research on Micro-inclusions of Tinplate in BOF-LF Process 作者：刘伟 ; 贾雅楠 ; 陈永洪 ; 王硕明 英文作者：LIU Wei;JIA Yanan;CHEN Yonghong;WANG Shuoming;Ministry of Education and Hebei Key Laboratory, College of Metallurgy and Energy, North China University of Science And Technology;School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing; 关键词：马口铁三片罐 ; 工艺流程 ; 显微夹杂物 英文关键词：sanitary tinplate;;process flow;;micro-inclusion 中文刊名：ZZJS 英文刊名：Foundry Technology 机构：华北理工大学冶金与能源学院高品质钢连铸实验室;北京科技大学冶金与生态工程学院; 出版日期：2016-05-18 出版单位：铸造技术 年：2016 期：v.37;No.290 基金：河北省高等学校科学技术研究资助项目(Z2014019);; 河北省科技计划资助项目(1321101018D) 语种：中文; 页：ZZJS201605035 页数：4 CN：05 ISSN：61-1134/TG 分类号：135-138

摘要

探讨了制造马口铁三片罐的150吨BOF→LF→CC工艺流程钢中T[O]、[N]含量和显微夹杂形态的演变规律。结果表明:正常坯平均T[O]含量为29.8×10-4%,[N]含量18.1×10-4%。铸坯中显微夹杂主要为Al_2O_3-Ca O复合夹杂、Al_2O_3-Ca S复合夹杂和少量的Si O_2夹杂,正常坯显微夹杂平均含量为8.35个/mm2,非稳态铸坯显微夹杂分别为9.78个/mm2、17.81个/mm2、14.39个/mm2,铸坯显微夹杂物含量仍然偏高,其生产工艺仍须改进之处。
        The evolvement law of T[O] and [N] content and micro-inclusions pattern under the process flow of 150 t BOF→LF→CC which can make sanitary tinplate was investigated. The result show that the content of T[O] and [N] are 29.8×10-4% and 18.1 ×10-4% respectively in the normal billet. The main micro-inclusions are Al_2O_3-Ca O complex inclusions,Al_2O_3-Ca S complex inclusions and few inclusions of Si O_2. The average content of micro-inclusions in the normal billet is8.35/mm~2. The contents of micro-inclusions in unsteady state are 9.78/mm2, 17.81/mm2, 14.39/mm~2, respectively. The content of the micro-inclusions is high in the process flow and the production process still need improved.

引文

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