作者单位:GUAN Da-wei(Bar and Wire Mill,Chengde Iron and Steel Company ,Hebei Iron and Steel Group,Chengde,Hebei ,067102;)关大伟(河北钢铁集团承钢公司棒线厂,河北 承德067102)LIANG Jun(Technique Center, Chengde Iron and Steel Company, Hebei Iron and Steel Group, Chengde, Hebei ,067102)梁均(河北钢铁集团承钢公司钒钛工程技术研究中心,河北 承德067102)