IF钢夹渣问题分析及应对措施  

ANALYSIS AND COUNTERMEASURES OF SLAG INCLUSION IN IF STEEL

作　　者：吴志杰 周君 刘涛 唐广鹏 王帅 Wu Zhijie;Zhou Jun;Liu Tao;Tang Guangpeng;Wang Shuai(North China University of Technology, Tangshan 063200, Hebei;Caofeidian Vocational and Technical College, Tangshan 063200, Hebei;HBIS Group Tangsteel Company, Tangshan 063000, Hebei)

机构地区：[1]华北理工大学,河北唐山063200 [2]曹妃甸职业技术学院,河北唐山063200 [3]河钢集团唐钢公司,河北唐山063000

出　　处：《河北冶金》2022年第2期49-53,共5页Hebei Metallurgy

摘　　要：利用EDS能谱分析对河钢唐钢生产的IF钢热轧板夹渣缺陷进行了分析,认为夹渣主要由连铸过程中结晶器卷渣造成。通过稳定结晶器流场、优化保护渣性能、铸坯扒皮与修磨处理、增加浸入式水口更换次数、防止钢水二次氧化,连铸夹渣率由7.0%降至2.8%,IF钢质量得到显著提升,具备为高端汽车钢生产稳定供货的能力。The slag inclusion defect of IF steel hot rolled plate produced in HBIS Tangsteel is analyzed by EDS energy spectrum analysis.It is considered that the slag inclusion is mainly caused by the slag curling in the mold during continuous casting.By stabilizing the mold flow field,optimizing the performance of protective slag,slab peeling and grinding,increasing the replacement times of submerged nozzle and preventing secondary oxidation of molten steel,the slag inclusion rate of continuous casting has been reduced from 7.0%to 2.8%,and the quality of IF steel has been significantly improved,which has the ability to stably supply goods for the production of high-end automotive steel.

关 键 词：IF钢 连铸 夹渣 翘皮 结晶器流场 浸入式水口 保护渣 

分 类 号：TF777[冶金工程—钢铁冶金]