矫直机入/出口矫直辊压弯量对板材不平度的影响  

The effect of entrance/exit leveler roller' intermesh to plate flatness

作　　者：周存龙[1] 王国栋[1] 谢东钢[2] 张勇安[2] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004 [2]中国重型机械研究院,陕西西安710032

出　　处：《重型机械》2008年第2期10-13,共4页Heavy Machinery

摘　　要：利用显式动力学有限元软件ANSYS/LS-DYNA模拟三种初始不平度分别为0 mm/m、32 mm/m及-27 mm/m的中厚板矫直过程,根据入/出口矫直辊位置的变化,对矫后板材的不平度进行了分析,得到矫直辊位置对板材矫直后上翘、下弯的影响规律:随着入口矫直辊压弯量的增加,不平度呈波浪型变化;出口矫直辊压弯量增加到一定量后,板材的不平度将由小变大;出口下辊位置向上调整后,板材弯曲方向由向下变化为向上。这些关系将为最佳矫直工艺的制定提供帮助。Explicit dynamic FEM code ANSYS/LS - DYNA is used here for simulating plate leveling process. The three kinds of initial flatness are Omm/m, 32mm/m and -27mm/m individually. Analysis is made to the plate flatness in accordance with the change of entrance/exit leveler roller＇ intermesh and the rule of influence upon the plate ： flatness change in wave state along with the increase of entrance leveler roller intermesh; flat- ness change from small to large with increase of exit leveler roller intermesh; curvature towards upward from down with increase of down exit leveler roller intermesh. All these will help realize optimum leveling processes.

关 键 词：有限元法 Ⅳ出口矫直辊 不平度 压弯量 

分 类 号：TG333.23[金属学及工艺—金属压力加工]