薄板坯连铸结晶器内保护渣卷渣的研究  

Study on Slag Entrapment of Protective Flux in Mold in Continuous Casting Process for Thin Slab

作　　者：吕亚[1] 刘磊[2] 徐刚[1] 蒋实 Lu Ya;Liu Lei;Xu Gang;Jiang Shi(Anyang Iron and Steel Group Co.,Ltd 455004)

机构地区：[1]安阳钢铁集团有限责任公司,455004 [2]安阳钢铁集团有限责任公司第二炼轧厂,455004

出　　处：《特钢技术》2020年第2期37-40,20,共5页Special Steel Technology

摘　　要：本研究主要是用结晶器水模来模拟结晶器内流场,研究薄板坯结晶器内卷渣机理,得出其主要卷渣方式为切向卷渣、涡旋卷渣、氩气冲击钢渣界面的卷渣,并对比操作参数对卷渣的影响,即拉速越大,浸入深度越浅,吹气量越大,卷渣可能性越大。从而提出避免卷渣的改进措施。In this study,the mold water model is used to simulate the flow field in the mold,and the mechanism of slag entrapment in the thin slab mold is studied.The main slag entrapment methods are tangential slag entrap⁃ment,vortex slag entrapment and slag entrapment at the interface of steel slag impacted by argon.The influence of operation parameters on slag entrapment is compared,that is,the greater the pulling speed,the shallower the immer⁃sion depth,the greater the blowing volume,the greater the possibility of slag entrapment.The improvement measures to avoid slag entrapment are put forward.

关 键 词：板坯连铸 结晶器卷渣 水模型 

分 类 号：TF777.7[冶金工程—钢铁冶金]