SS400钢板边部的表面裂纹  

Surface Cracks of the SS400 Plate Edge

作　　者：马文 管庆刚[1] 仝丽珍 

机构地区：[1]山东钢铁股份有限公司莱芜分公司,山东莱芜271104 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《物理测试》2013年第4期45-48,共4页Physics Examination and Testing

摘　　要：针对SS400钢板边部表面裂纹质量问题,通过化学成分对比、金相组织和能谱分析等手段,对裂纹情况进行了详细分析。结果表明,钢板表面裂纹在连铸坯上就已存在,且裂纹在后续的轧制过程中进一步扩展而形成了钢板表面裂纹。通过对连铸和轧制工艺进行优化,制定合适的工艺控制措施后,钢板表面裂纹情况明显下降。The analysis of the quality issues of the surface cracks on the edge of the SS400 plate was carried out by comparing the chemical composition, microstructure and EDS etc. The results show that surface cracks of the steel sheet existed on the billet, and in the subsequent rolling process the cracks further expanded to form the surface crack of a steel plate. Surface crack is decreased by using continuous casting and rolling technology to optimize the process and develop an appropriate control measures.

关 键 词：钢板 连铸坯 表面裂纹 脱碳 

分 类 号：TF777[冶金工程—钢铁冶金]