电磁纯铁圆钢表面裂纹成因分析  

Analysis on Surface Crack Formation of Round Steel of Magnetic Pure Iron

作　　者：王新宇[1] 

机构地区：[1]山西太钢不锈钢股份有限公司,山西太原030003

出　　处：《山西冶金》2015年第5期41-42,45,共3页Shanxi Metallurgy

摘　　要：针对电磁纯铁热轧圆钢表面裂纹问题,采用化学分析、酸浸低倍、金相显微镜分析等方法,研究了裂纹可能形成的原因,排除了化学成分不合、连铸坯中心偏析和夹杂物等原因,最终提出引起裂纹的原因可能是热轧过程中产生的折叠,为裂纹的成因分析提供了思路。According to the surface crack of hot-rolled round steel of magnetic pure iron,formation cause of surface crack is researched by chemistry analysis,etching,metallographic microscopy. Some reasons such as chemical constituaents disqualification,center segregation and inclusion in slabs,are excluded. The result shows that the cause of crack maybe the laps generated during hot rolling. A way for analysis of the causes of surface cracks is provided.

关 键 词：电磁纯铁热轧圆钢 连铸板坯 表面纵向裂纹 

分 类 号：TG142.77[一般工业技术—材料科学与工程]