铁路弹条用弹簧圆钢表面划伤缺陷分析及改进  

Analysis and improvement measures of surface scratch defect of spring steel for railway spring bar

作　　者：赵岳 陆建 陈坤 吴清 ZHAO Yue;LU Jian;CHEN Kun;WU Qing(Rolling Plant,Jiangsu Shagang Group Huaigang Special Steel Co.,Ltd.,Jiangsu Shagang Group,Huai'an 223002,China;Production Management Office,Jiangsu Shagang Group Huaigang Special Steel Co.,Ltd.,Jiangsu Shagang Group,Huai'an 223002,China)

机构地区：[1]江苏沙钢集团淮钢特钢股份有限公司轧钢厂,江苏淮安223002 [2]江苏沙钢集团淮钢特钢股份有限公司生产管理处,江苏淮安223002

出　　处：《物理测试》2024年第4期48-52,共5页Physics Examination and Testing

摘　　要：针对铁路弹条用弹簧圆钢表面划伤缺陷,开展了试验检测分析,对产生原因进行了探讨,找出了产生划伤缺陷的根本原因。研究结果表明:通长划伤是轧件与成品机架出口至3#剪之间的导槽及3#剪后的输送辊道架滑动摩擦,长时间摩擦后形成沟槽,轧件走在沟槽上形成;间断性划伤是在高速卸料过程中轧件与角部尖锐的裙板、裙板辊接触摩擦产生。结合生产过程中存在的质量问题,提出了改进措施,有效控制了铁路弹条弹簧钢表面划伤缺陷,产品质量良好,获得了客户的认可。In view of the scratch defects on the surface of spring steel for railway spring bar,the experimental detection and analysis were conducted,and the reasons were discussed to find out the root causes of scratch defects.The results showed that the long scratches were the sliding friction between the guide groove between the exit of the rolled part and the finished product frame to the 3#shear and the conveying roller frame after the 3#shear.A groove was formed after long-term friction.The intermittent scratches were produced by contact friction between rolled pieces and skirt and skirt rollers with sharp corners during high-speed discharge.Combining with the quality problems existing in the production process,the improvement measures were put forward to effectively control the scratch defects on the surface of the spring steel for the railway spring bar.The quality of final products was good,which was recognized by the customers.

关 键 词：铁路弹条 通长划伤 间断性划伤 导槽 输送辊道架 升降裙板 裙板辊 

分 类 号：U216.3[交通运输工程—道路与铁道工程] TG142.1[一般工业技术—材料科学与工程]