锻压技术

中大直径钢材棒料二辊矫直机凹辊设计方法

英文标题：Design on concave roller shape of tworoller straightener for mediumlarge diameter steel bars

作者：吴优王敏杰魏兆成马日光

单位：大连理工大学

分类号：TH122

出版年,卷(期):页码：2018,43(6):80-88

摘要：

针对某钢厂中大直径钢材棒料二辊矫直存在矫直质量差的问题进行研究，利用矫直过程中棒材曲率比与矫直次数的关系并与矫直机理相结合，最后确定出正确的凹辊辊型。采用Φ50~Φ70 mm直径范围内不同直径的中大棒材对设计凹辊进行试验验证，利用相应的精度测量仪器分别测量矫直后不同直径棒材的直线度、椭圆度、表面质量并对压扁率进行计算。试验结果表明：所设计的凹辊辊型使矫直后中大直径棒材具有高精度，直线度误差分布范围为0.1~0.6 mm·m-1；椭圆度误差小于0.1 mm，扁率分布范围为0.5‰~1.8‰；矫直后中大直径棒材表面粗糙度为微米数量级，表面光滑，无划痕现象产生，设计凹辊起到滚光棒材的作用。

The problem of low straightening quality in tworoller straightening for mediumlarge diameter steel bars was analyzed, and the correct concave roller shape was determined by combining the relationship between curvature ratio and straightening times and straightening mechanism in the process of straightening. Then, the designed concave roller was verified by different mediumlarge diameter bars with diameter in Φ50-Φ70 mm, and their straightness, ellipticity and surface quality were measured respectively by corresponding precision measuring instrument and flattening ratio was calculated. The experimental results show that the designed concave roller shape can ensure high precision of the bars with the range of straightness error of 0.1-0.6 mm·m-1, ellipticity error less than 0.1 mm and the range of flattening ratio of 0.5‰-1.8‰ after straightening. Therefore, the surface roughness of mediumlarge diameter bars is on the order of micrometers, and the surface is smooth without scratch phenomenon after straightening. Thus, the designed concave roller plays the role of rolling bar.

基金项目：

辽宁省自然科学基金资助项目（201602174）

吴优(1993-)，男，硕士研究生；Email：18342202640@163.com；通讯作者：王敏杰(1958-)，男，博士，教授；Email: mjwang@dlut.edu.cn

参考文献：

［1］马斯基列逊 A M.管材矫直机
［M］.北京:机械工业出版社,1979.

Maskelesen A M. Tube Straightening Machine
［M］.Beijing: China Machine Press,1979.

［2］Li K Y, Chen C K, Yang S C. Profile determination of a tubestraightening roller by envelope theory
［J］. Journal of Materials Processing Technology, 1999, 94(2-3):157-166.

［3］崔甫.矫直原理与矫直机械
［M］.北京:冶金工业出版社，2010.

Cui F. Straightening Principle and Straightening Machine
［M］.Beijing: Metallurgical Industry Press,2010.

［4］敖列伟,吴伯杰,王志诚.二辊矫直原理及精度分析
［J］.重型机械, 1997,(6):41-46.

Ao L W, Wu B J, Wang Z C. An analysis of tworoller straightening process and straightening precision
［J］. Heavy Machinery, 1997,(6):41-46.

［5］Wu B J, Chan L C, Lee T C, et al. A study on the precision modeling of the bars produced in two crossroll straightening
［J］. Journal of Materials Processing Technology, 2000, 99(1-3):202-206.

［6］刘志亮.棒材二辊矫直机辊型及变形机理研究
［D］.秦皇岛：燕山大学, 2009.

Liu Z L. Study on Mechanism and Roller Shape for TwoRoller Bar Straightener
［D］. Qinhuangdao: Yanshan University, 2009.

［7］刘志亮,刘丰, 王英杰.棒材二辊矫直机辊型曲线与矫直精度分析
［J］.钢铁, 2012, 47(7):40-43.

Liu Z L, Liu F, Wang Y J. Roller curvature and straightening precision on tworoller bar straightener
［J］. Iron and Steel, 2012, 47(7):40-43.

［8］王云.棒材二辊矫直过程及关键技术研究
［D］. 秦皇岛：燕山大学, 2013.

Wang Y. Study on Process and Key Technology of TwoRoller Straightening
［D］. Qinhuangdao: Yanshan University, 2013.

［9］Mutrux A, Berisha B, Hora P. Prediction of cyclic softening in a medium carbon steel during cross roll straightening
［J］. Journal of Materials Processing Technology, 2011, 211(8):1448-1456.

［10］Mutrux A, Berisha B, Hora P. FE simulation of cross roll straightening: A strain tensor field approach
［J］. , 2010, 1252(1):941-948.

［11］Jindrˇich Petruka, Tomá Návrat, Frantiek ebek. Novel approach to computational simulation of cross roll straightening of bars
［J］. Journal of Materials Processing Tech, 2016, 233:53-67.

［12］贾锋. Φ100~Φ150 mm棒材二辊矫直机矫直曲率分析及辊型设计
［D］. 秦皇岛：燕山大学, 2015.

Jia F. Analysis of Straightening Curvature and Roll Shape Design for Φ100~Φ150mm Bars TwoRoller Straightening
［D］. Qinhuangdao: Yanshan University, 2015.

［13］刘志亮,贾锋,杨士博.Φ100～Φ150 mm圆材二辊矫直机矫直曲率分析
［J］.钢铁, 2015, 50(3):96-101.

Liu Z L, Jia F, Yang S B. Analysis of straightening curvature for Φ100～Φ150 mm tworoller straightener
［J］.Iron and Steel, 2015, 50(3):96-101.

［14］许磊.棒材二辊矫直机辊型及安装角的研究
［D］. 秦皇岛：燕山大学, 2014.

Xu L. Study on Roll Shape and Installation Angle for TwoRoller Bar Straightener
［D］. Qinhuangdao: Yanshan University, 2014.

［15］张子骞,张柏森,杨会林,等.管棒材等曲率矫直力模型可视化设计
［J］.东北大学学报：自然科学版, 2012, 33(3):409-413.

Zhang Z Q, Zhang B S, Yang H L, et al. Visual design of a straightening force model for tubes and bars straightened by equal curvature
［J］. Journal of Northeastern University: Nature Science, 2012, 33(3):409-413.

［16］杨士博.钛合金管材复合辊型矫直机辊型曲线及仿真研究
［D］. 秦皇岛：燕山大学, 2015.

Yang S B. The Research on Roller Shape Curve and the Numercial Simulation Analysis on the Composite Roll Shape Straightener for Titanium Alloy Tubes
［D］. Qinhuangdao: Yanshan University, 2015.

［17］张丽英. 二斜辊矫直机辊形曲线选择及矫直机理研究
［J］. 锻压技术, 2016, 41(10):113-117.

Zhang L Y. Selection of roll shape curve and research on the straightening for tworoll straightening machine
［J］. Forging & Stamping Technology, 2016, 41(10):113-117.

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