冷硬卷边裂典型缺陷的成因分析  

Analysis of formation reason of typical edge-cracking defects of chilled cold coil

作　　者：王畅[1] 于洋[1] 王林[1] 陈瑾[2] 徐海卫[1] 焦会立[2] 

机构地区：[1]首钢技术研究院,北京100043 [2]首钢迁安钢铁有限责任公司,河北迁安064404

出　　处：《轧钢》2016年第1期37-40,48,共5页Steel Rolling

摘　　要：对冷硬卷边部缺陷及其外观特征进行了描述,对3种典型边裂缺陷形貌及产生原因进行了分析,认为炼钢过程表面结疤缺陷、热轧板边部组织异常、冷轧轧制润滑不均是这3种典型边裂缺陷产生的根本原因,为生产工艺控制提供了依据。The edge defects and correspond characteristics of chilled cold coil were described.The morphologies and formation reasons of three kinds of typical edge-cracking defects were studied.The results showed that scar defect on the slab surface,abnormal microstructure at the edge of hot rolled strip,and non-uniform lubrication during cold rolling process were the main reasons of these three kinds of defects.It was the reference to process control of production.

关 键 词：冷硬卷 边裂缺陷 结疤 组织异常 润滑不均 

分 类 号：TG115[金属学及工艺—物理冶金] TG335[金属学及工艺—金属学]