超低碳钢边部缺陷的形成及控制措施  

Formation of Edge Defects of Ultra-low Carbon Steel and Control Measures for Defects

作　　者：李江委[1] 何士国[1] 王存[1] 王杰[1] 任俊威[1] 贺亮[1] 冯艳斌 王刚[1] Li Jiangwei;He Shiguo;Wang Cun;Wang Jie;Ren Junwei;He Liang;Feng Yanbin;Wang Gang(Bayuquan Branch of Angang Steel Co.,Ltd.,Yingkou 115007,Liaoning,China)

机构地区：[1]鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁营口115007

出　　处：《鞍钢技术》2021年第4期58-62,共5页Angang Technology

摘　　要：针对超低碳钢冷轧边部缺陷问题,分析了其产生的原因,确定了中间坯温降、边部温降以及压下率、精轧立辊轧制力等工艺参数是边部缺陷产生的主要影响因素。通过安装粗轧机入、出口气喷和立辊挡水板装置,调整压下率和导尺开口度等热轧工艺参数,解决了超低碳边部质量问题。In view of the existing edge defects of the ultra-low carbon steel by cold rolling,the causes leading to the defects were analyzed.According to the analytical results it was concluded that these influencing factors such as the temperature drop of an intermediate slab,its edge temperature drop,the reduction rate and the rolling force of edging rolls to the finishing mill were main influencing factors for causing the edge defects.By taking these measures such as installing air sprayers at inlet and outlet to the roughing mill and water baffle devices for edging rolls,adjusting the hot rolling process parameters for the reduction rate and the degree opening of the guide ruler,the problem of influencing the quality of the ultra-low carbon steel due to the edge defects was solved.

关 键 词：超低碳钢 边部缺陷 温降 气喷装置 挡水板 

分 类 号：TG33[金属学及工艺—金属压力加工]