六西格玛在降低热轧板翘皮缺陷中的应用  

Application of Six-sigma Management System for Reduction of Sliver Defects on Edge of Hot Rolled Strip

作　　者：张立夫[1] 王鲁毅[1] 苏小利[1] 何浩[1] 刘金超[1] 刘博[1] Zhang Lifu Wang Luyi Su Xiaoli He Hao Liu Jinchao Liu Bo(Bayuquan Branch of Angang St~ Co., Ltd., Yingkou 115007, Liaoning, China)

机构地区：[1]鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁营口115007

出　　处：《鞍钢技术》2017年第1期51-53,62,共4页Angang Technology

摘　　要：针对SPHC钢种热轧板边部翘皮缺陷的问题,运用六西格玛方法进行因素筛选并分析。结果表明,钢中锰含量、硫含量、铸坯热轧加热炉出炉温度是产生翘皮缺陷的主要因素。通过对钢中锰、硫成分和加热炉出炉温度的控制,翘皮缺陷发生率由13%降低到3%。With regard to the problem of the sliver d efects on the edge of SPHC hot rolled strip, the defects were detected and analyzed by application of the six-sigma management system.The results show that the content of manganese and sulfur in molten steel and the tapping temperature of a slab in the heating furnace were the main factors for forming the sliver defects. By adjusting the content of manganese and sulfur in molten steel and the tapping temperature, the oc-currence rate of the sliver defects was reduced to 3% from 13%.

关 键 词：热轧板 翘皮缺陷 板坯出炉温度 六西格玛 

分 类 号：TF769[冶金工程—钢铁冶金]