作者单位:ZHANG Dan,MA Ren-bin(Mechanical& Electrical Department, Tangshan Vocational College of Science and Technology , Tangshan 063001, China)张丹,马韧宾(唐山科技职业技术学院机电系,河北唐山063001)WANG Wei,WANG Yan-chun(Metallurgical Department, Tangshan Vocational College of Science and Technology, Tangshan 063001, China)王伟,王艳春(唐山科技职业技术学院冶金系,河北唐山063001)GAO Zhi-ping(Production& Manufacturing department of Tangshan Iron and Steel Co. Ltd. , Tangshan 063016, China)高志平(唐山钢铁股份有限公司生产制造部,河北唐山063016)