锰硫比对SPHC薄板边部裂纹的影响  

Effect of Manganese-sulphur Ratio on SPHC Thin Plate Edge Crack

作　　者：马鑫 杨吉春[1] 李彬[3] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010 [2]包钢(集团)公司生产部,内蒙古包头014010 [3]内蒙古包钢钢联股份有限公司稀土钢板材厂,内蒙古包头014010

出　　处：《包钢科技》2018年第1期49-53,共5页Science & Technology of Baotou Steel

摘　　要：对包钢2250mm热轧线生产的SPHC钢卷出现边部裂纹进行了分析,认为钢卷w[Mn]/w[S]较低,使板坯边角部位易出现微裂纹,并在轧制过程中随着金属流变至带钢边部而形成缺陷。经实践,w[Mn]/w[S]≥12时,可有效避免SPHC边部裂纹的出现。The edge cracks on SPHC coil produced in 2 250ram hot rolling line of Baotou Steel is analyzed. It is con- cluded that the lower w [ Mn ]/w [ S ] of coil can cause micro cracks in the edge and comer of slab, forming defects along with the metal flow to the edge of the strip during rolling process. In practice, when w[ Mn]/w[ S] ≥ 12, SPHC edge crack can be effectively avoided.

关 键 词：SPHC钢卷 边裂 分析 

分 类 号：TG335.5[金属学及工艺—金属压力加工]