影响连铸中包定径水口夹钢的因素与实践原因分析  

Analysis of the Factors and Practical Reasons Affecting the Steel Clip of the Sizing Nozzle in Continuous Casting Tundish

作　　者：刘海龙 韩小强[1] LIU Hai-long;HAN Xiao-qiang(Hebei Jinxi Iron&Steel Group Co.Ltd.,Tangshan 064300,China)

机构地区：[1]河北津西钢铁集团股份有限公司,河北唐山064300

出　　处：《甘肃冶金》2021年第1期35-37,共3页Gansu Metallurgy

摘　　要：影响连铸中包定径水口夹钢的根本因素,就是定径水口之间的缝隙过大和定径水口“窝损”侵蚀严重。一般使用标准要求定径水口之间的缝隙≤0.3 mm,而且在整个使用过程中不得有“窝损”现象。现场分析表明定径水口的“窝损”现象正是引起定径水口夹钢的起源。通过深入分析影响连铸中包定径水口夹钢的因素,包括:耐材、机构和生产工艺等因素,在根据不同的因素制定相应的措施,逐渐解决了连铸中包定径水口夹钢现象。The basic factors that affect the sizing nozzle steel in continuous casting are the large gap between the sizing nozzle and the serious pit erosion.In general use,the gap between the sizing nozzle is less than 0.3 mm,and there should be no"pit damage"during the whole use.The field analysis shows that the pit damage of the sizing nozzle is the origin of the NIP steel.Based on the deep analysis of the factors affecting the clamping of sizing nozzle in continuous casting,including the factors such as refractories,mechanism and production technology,the corresponding measures are worked out according to different factors,and the phenomenon of the clamping of sizing nozzle in continuous casting is gradually solved.

关 键 词：定径水口 侵蚀 耐材 生产工艺 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]