低碳钢酸洗板边部翘皮缺陷原因分析与控制  

CAUSE ANALYSIS AND CONTROL OF SKIN WARPING DEFECT AT THE EDGE OF PICKLING PLATE OF LOW CARBON STEEL

作　　者：杜艳玲 张志扬 刘素丽 曹晓恩 姜丽梅 张秀宏 Du Yanling;Zhang Zhiyang;Liu Suli;Cao Xiaoen;Jiang Limei;Zhang Xiuhong(Technology Center of HBIS Group Hansteel Company, Handan 056015, Hebei;Clod Rolling Plant of HBIS Group Hansteel Company, Handan 056015, Hebei;Hebei Key Laboratory of Advanced Steel Materials for Auto, Handan 056015, Hebei)

机构地区：[1]河钢集团邯钢公司技术中心,河北邯郸056015 [2]河钢集团邯钢公司冷轧厂,河北邯郸056015 [3]河北省汽车用先进钢铁材料重点实验室,河北邯郸056015

出　　处：《河北冶金》2021年第9期48-52,共5页Hebei Metallurgy

基　　金：国家重点研发计划资助项目(2017YFB0304103)。

摘　　要：针对低碳钢酸洗板边部翘皮缺陷,分别从显微组织、化学成分和铸坯边部质量3个方面进行了分析。通过对比验证,明确了铸坯边部角横裂是边部翘皮缺陷产生的原因。调整结晶器与二冷段冷却水模式、辊缝对中后,有效改善了铸坯角横裂缺陷,解决了低碳钢酸洗板边部翘皮缺陷。Aiming at the edge warping defect of low carbon steel pickling plate,it is analyzed from three aspects:microstructure,chemical composition and slab edge quality.Through comparison and verification,it is clear that the transverse corner crack of billet edge is the cause of edge warping defect.Through adjusting the cooling water mode between the mold and the secondary cooling section and aligning the roll gap,the corner transverse crack defect of the billet is effectively improved and the edge warping defect of the low carbon steel pickling plate is solved.

关 键 词：低碳钢 翘皮 缺陷 铸坯 角横裂 冷却制度 锰硫比 

分 类 号：TF142.1[冶金工程—冶金物理化学]