转炉钢水罐车钢轨纵向开裂失效机理研究  

The Failure Mechanism Research on Rail Longitudinal Cracking under Converter Ladle Car

作　　者：龙剑群 陈贤波[2] 张业建[2] 江向栋[2] 郑同六 林汝华 LONG Jianqun;CHEN Xianbo;ZHANG Yejian;JIANG Xiangdong;ZHENG Tongliu;LIN Ruhua(Baosteel Zhanjiang Iron & Steel Co., Ltd., Zhanjiang 524072, China;Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China)

机构地区：[1]宝钢湛江钢铁有限公司,广东湛江524072 [2]宝山钢铁股份有限公司,上海宝山201900

出　　处：《机械》2017年第5期77-80,共4页Machinery

摘　　要：针对宝钢湛江钢铁炼钢厂转炉炉下钢水罐车走行钢轨纵向开裂故障,通过对炼钢冶炼工艺特性、转炉炉下实际工况、炉底设备防渣能力进行勘察,对钢轨实际工作温度、断裂钢轨电镜扫描以及金相组织进行检测分析,得出了高温是引起钢轨组织变化,造成钢轨纵向开裂故障的主要原因,提出了相应的对策措施,对于新建项目和技术改造创新具有一定参考意义。Aiming at the failure which caused rail longitudinal cracking under converter ladle car in Baosteel Zhanjiang Iron&Steel Co.,Ltd.,this thesis studied the cause of failure from several aspects.Through the survey and analysis of steelmaking process,working condition and the ability of slag baffle under converter,rail actual temperature,SEM and metallograph experiment on cracking rail,this thesis came to the conclusion that the high temperature was the primary cause of the rail organizational change and longitudinal cracking.In order to solve this problem,this thesis put forward some corresponding countermeasures.This may provide certain reference meanings to new project and technical innovation project.

关 键 词：钢轨开裂 高温 金相分析 钢水罐车 

分 类 号：TF341.4[冶金工程—冶金机械及自动化] TF748.06