作者单位:WANG jian,FANG Jin-chao,WANG Wei-dong,TIAN Xiu-gang(Hebei Iron & Steel Group TangGang Technology Center HeBei Tangshan 063009)王健,房锦超,田秀刚,王卫东(河北钢铁集团唐钢技术中心 河北唐山063009)WANG Yong-jie(Hebei Iron & Steel Group TangGang The NO.1Steel Roll Factory, HeBei Tangshan 063009)王永杰(河北钢铁集团唐钢第一钢轧厂,河北唐山063009)