超低碳深冲钢冶炼全流程中夹杂物分析  

Inclusions in whole smelting process of low carbon deep drawing steel

作　　者：马汝成 牛小超 董中奇[1] 刘燕霞[1,2] 齐素慈 徐海强[3] MA Ru-cheng;NIU Xiao-chao;DONG Zhong-qi;LIU Yan-xia;QI Su-ci1;XU Hai-qiang(Department of Materials Engineering,Hebei College o{Industry and Technology,Shijiazhuang 050091,Hebei,China;Technology Center,HBIS Group Hansteel Company,Handan 056015,Hebei,China;School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,Hebei,China)

机构地区：[1]河北工业职业技术学院材料工程系,河北石家庄050091 [2]河钢集团邯钢公司技术中心,河北邯郸056015 [3]河北科技大学材料科学与工程学院,河北石家庄050018

出　　处：《中国冶金》2018年第11期25-29,共5页China Metallurgy

基　　金：河北省高等学校科学技术研究资助项目(QN2014115);河北省人才培养工程资助项目(A201500114)

摘　　要：采用光学显微镜和扫描电镜对超低碳深冲钢冶炼全流程中的夹杂物进行分析。结果表明,RH精炼过程中的夹杂物由FeO转变为Al2O3类脱氧产物;中间包浇铸过程中的夹杂物以Al2O3·TiOx类夹杂为主,但受到钢包渣和中间包渣的影响;连铸过程中的夹杂物以铝钛夹杂为主,夹杂物的形成与结晶器内的卷渣紧密相关。The inclusions in the whole process of smelting low carbon deep drawing steel were analyzed by optical microscope and scanning electron microscope.The results showed that the inclusions changed from FeO to Al2O3 deoxidized products in the refining process.The inclusions in tundish casting process were mainly Al2O3-TiOxinclusions,but were influenced by ladle slag and tundish slag.The inclusions in continuous casting process were mainly titanium aluminum inclusions,whose formation was closely related to the crystallizer slag entrapment.

关 键 词：超低碳深冲钢 RH精炼 夹杂物 

分 类 号：TF761.2[冶金工程—钢铁冶金]