高强度带肋钢筋表面缺陷形成原因及分析  

作　　者：刘洪芝[1] 高强 桂海峰 

机构地区：[1]江苏沙钢集团有限公司理化检测中心,江苏张家港215625 [2]江苏沙钢集团有限公司总工办,江苏张家港215625

出　　处：《科技创新与应用》2020年第16期112-113,共2页Technology Innovation and Application

摘　　要：文章对高强度带肋钢筋T6在轧制后表面出现凹坑、掉肉、结疤、翘皮、通条性微小折叠等缺陷,从原材料铸坯的质量、铸坯的炼钢和轧后缺陷处取样金相检测等方面进行查找及分析,得出轧制缺陷与铸坯表面出现较为明显的角部纵裂、重皮存在一定的关系,是产生轧制后表面出现凹坑、掉肉、结疤、翘皮、通条性微小折叠等缺陷的主要原因。In this paper,the defects of high-strength ribbed steel bar T6,such as pits,flakes,scabs,spills,strip micro-folds and so on,are discovered and analyzed from the aspects of the quality of raw material casting billet,steelmaking of billet,and metallographicinspection of sampling defects after rolling.It is concluded that there is a certain relationship between rolling defects and obvious longitudinal apparent corner crack as well as double skin on the surface of billet.It is the main reason for the defects such as pits,flakes,scabs,spills,strip micro-folds and so on after rolling.

关 键 词：高强度带肋钢筋 轧制缺陷 角部纵裂 重皮 

分 类 号：TG115[金属学及工艺—物理冶金]