Damage Mechanism and Countermeasures of Carbon Bonded Refractories for Continuous Casting  

作　　者：QIAN Fan LI Hongxia LIU Guoqi YANG Wengang YU Jianbin MA Weikui 

机构地区：[1]State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Co.,Ltd.

出　　处：《China's Refractories》2016年第3期42-47,共6页中国耐火材料（英文版）

摘　　要：The long nozzle,stopper,and submerged entry nozzle play an important role in continuous casting. They are of the similar composition and are mainly damaged by liquid steel thermal shock which leads to immediate cracks or fracture in their combined area because of the thermal mechanical properties mismatch,or damaged by corrosion on their interface. The failure mechanisms are the thermal shock damage and continuous reaction corrosion. High efficiency and long life of the long nozzle,stopper,and submerged entry nozzle can be realized by optimizing the thermal mechanical properties,the key erosion step,and the combination match.The long nozzle,stopper,and submerged entry nozzle play an important role in continuous casting. They are of the similar composition and are mainly damaged by liquid steel thermal shock which leads to immediate cracks or fracture in their combined area because of the thermal mechanical properties mismatch,or damaged by corrosion on their interface. The failure mechanisms are the thermal shock damage and continuous reaction corrosion. High efficiency and long life of the long nozzle,stopper,and submerged entry nozzle can be realized by optimizing the thermal mechanical properties,the key erosion step,and the combination match.

关 键 词：long nozzle  stopper  and submerged en-try nozzle for continuous casting thermal shock dam-age continuous reaction corrosion COUNTERMEASURES 

分 类 号：TF341.6[冶金工程—冶金机械及自动化] TQ175.7[化学工程—硅酸盐工业]