二辊矫直过程导板间距工艺参数分析  

Analysis of interval between guides during two-roll straightening process

作　　者：王云[1] 刘才[1] 马立东[2] 王玉峰[3] 黄庆学[2] 

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]太原科技大学重型机械教育部工程研究中心,太原030024 [3]石家庄钢铁有限责任公司新一轧厂,石家庄050031

出　　处：《吉林大学学报（工学版）》2013年第3期677-681,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'973'国家重点基础研究发展计划项目(2011CB612204);国家自然科学基金项目(51105264;51104104)

摘　　要：针对某钢厂棒材矫直过程中二辊矫直机导板间距没有明确规定并且导板磨损严重的情况,用大型非线性有限元软件建立了棒材二辊矫直过程的三维弹塑性有限元模型。基于此模型研究了不同导板间距下矫直力、导板支撑力、塑性变形程度、矫后残余应力及最大挠度的变化规律,综合分析提出了合理的导板间距取值范围。新的导板间距比之前实际应用的值有所增大,应用后导板更换频率降低。As reasonable interval between guides during two-roll straightening process was not easy to determine, a 3D elastic-plastic finite element model of the straightening process of bar material was proposed. Based on this model, variations of straightening force, supporting force of guides, degree of plastic deformation, residual stress and the maximum deflection of the bar after straightening were analyzed in different intervals. Reasonable range of interval between guides was determined by comprehensive consideration. The obtained range of interval by this study is larger than previously used range, and the frequency of change of guides is decreased.

关 键 词：金属材料 轧制 二辊矫直 导板间距 

分 类 号：TG335.21[金属学及工艺—金属压力加工]