热轧HP295带钢中魏氏体组织成因及控制  

FORMATION AND CONTROL OF WIDMANSTATTEN STRUCTURE IN HOT ROLLED HP295 STRIP

作　　者：刘志卫 李杨 臧振东 李岩杰 白敏 张岩 Liu Zhiwei;Li Yang;Zang Zhendong;Li Yanjie;Bai min;Zhang Yan(Technology Innovation Department of HBIS Group Tangsteel Company, Tangshan 063009, Hebei)

机构地区：[1]河钢集团唐钢公司技术创新部,河北唐山063009

出　　处：《河北冶金》2021年第10期76-79,共4页Hebei Metallurgy

摘　　要：以HP295为对象,研究了魏氏体组织对热轧带钢横向组织与性能均匀性的影响。通过对加热、轧制和冷却过程数据分析,认为板坯加热温度低、在炉时间短,造成板坯加热后温度均匀性差,影响带钢后续轧制及冷却过程,最终导致基体出现较严重的魏氏体组织。优化热轧工艺后,带钢魏氏体组织大幅减轻,产品质量明显提升。Taking HP295 as the object,the effect of Widmanstatten structure on the transverse structure and property uniformity of hot rolled strip was studied.By analyzing the data of heating,rolling and cooling process,it is considered that the low heating temperature and short furnace time of slab lead to poor temperature uniformity after heating,affect the subsequent rolling and cooling process of strip steel,and eventually lead to serious widmanstatten structure in the matrix.After optimizing the hot rolling process,the widmanstatten structure of strip steel is greatly reduced and the product quality is significantly improved.

关 键 词：HP295 魏氏体 热轧 金相组织 力学性能 均匀性 

分 类 号：TG142.1[一般工业技术—材料科学与工程]