·1556· 工程科学学报，第40卷，第12期 two-roll straightener.Iron Steel,2013,48(4):45 一屈服强度300MPa 0.8 屈服强度600MPa (王云，刘才，马立东，等.二辊矫直机凹辊辊形设计.钢铁， 屈服强度900MPa 2013.48(4):45) 0.6 屈服强度1200MPa 0 [6]Liu Z L,Liu F,Wang Y J.Roller curvature and straightening pre- cision on two-roll bar straightener.Iron Steel,2012,47(7):40 0.2 (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.钢铁，2012,47(7)：40) 0.2 [7]Meng Q X,Sun D Y.Xu S M.FEM research on concave roller in 0.4 two-roll large-diameter and thick-walled tubes straightener.Iron 0.6 Stee,2012,47(7):49 -0.8 (孟启星，孙登月，许石民.大直径厚壁管二辊矫直机凹辊辊 1015 反弯次数 型有限元研究.钢铁，2012,47(7)：49) [8]Wang Y,Liu C,Ma L D,et al.Analysis of interval between 图12不同屈服强度情况下的矫直精度 guides during two-roll straightening process.J Jilin Unis Eng Fig.12 Straightening accuracy in different yield strength cases Technol Ed.2013,43(3):677 低，屈服强度越高，每次弯曲弹复后的残余曲率水平 (王云，刘才，马立东，等.二辊矫直过程导板间距工艺参数 分析.吉林大学学报（工学版），2013,43(3)：677) 越高，但最终均得到矫直，且最终残余曲率值相近 [9] Wang Y,Liu C.Ma L D,et al.Study of gap between rolls during 4结论 two-roll straightening process.Iron Steel,2012,47(9):50 (王云，刘才，马立东，等.棒材二辊矫直过程中的辊缝工艺 (1)平面小曲率弯曲弹复理论能够适应棒材矫 参数.钢铁，2012,47(9)：50) 直的需要，得到的结果与现场生产结果一致. [10]Jin FS,Sun D Y,Xu S M.Influence of installation angle during (2)凹辊辊型曲线是使棒材达到一定弯曲曲率 two-roll straightening for large-diameter bar on process parame- 变化的重要影响因素，其辊型曲率的取值直接影响 ters.J Plast Eng,2017,24(3):154 (金福生，孙登月，许石民.大直径棒材二辊矫直安装角对 最终的矫直精度 工艺参数的影响.塑性工程学报，2017,24(3)：154) (3)合理设计的辊型配合一定的角度设定，能 [11]Petruska J,Navrat T,Sebek F.Novel approach to computational 够实现棒材残余曲率逐渐减小，从而实现棒材矫直. simulation of cross roll straightening of bars.I Mater Process Technol,2016,233:53 参考文献 [12]Navrat T,Petruska J.Eulerian description of rail straightening [1]Wang Y.Study on Process and Key Technology of Two-Roll process.Appl Mech Mater,2014,624:213 Straightening Dissertation ]Qinhuangdao:Yanshan University, [13]Liu Z F,Wang Y Q,Yan X C.A new model for the plate level- 2013 ing process based on curvature integration method.Int/Mech (王云.棒材二辊矫直过程及关键技术研究[学位论文].秦皇 Sci,2012,54(1):213 岛：燕山大学，2013) [14]Mutrux A,Berisha B,Hora P.Prediction of cyclic softening in a [2]Ma Z Y,Ma L F,Wang R J,et al.Study on control strategies of medium carbon steel during cross roll straightening.Mater two-roll straightening for bar high precision straightening.Mech Process Technol,2011,211(8):1448 Eng,2017,53(20):77 [15]Wu B J,Chan L C,Lee T C,et al.A study on the precision (马自勇，马立峰，王荣军，等.棒材高精度二辊矫直质量控 modeling of the bars produced in two cross-roll straightening. 制策略研究.机械工程学报，2017,53(20)：77) Mater Process Technol,2000,99(1-3):202 [3]Cui F.Straightening Principle and Straightening Machine.2nd [16]Yin J,Zhao J,Wang S Y,et al.Principle of multi-roller Ed.Beijing:Metallurgical Industry Press,2005 straightening process and quantitative resolutions of straightening (崔甫.矫直原理与矫直机械.2版.北京：治金工业出版社， strategies.J fron Steel Res Int,2014,21(9):823 2005) [17]Zhang Z Q.Prediction of maximum section flattening of thin- [4]Ma L F,Ma Z Y,Ma L D,et al.Design method of roller shape walled circular steel tube in continuous rotary straightening for bar two-roll straightener based on plastic 58,and neutral layer process.J Iron Steel Res Int,2016,23(8):745 offset.J Xi'an Jiaotong Univ,2015,49(7):72 [18]Zhang Z Q,Yan Y H,Yang H L.A simplified model of maxi- (马立峰，马自勇，马立东，等.利用塑性56，与中性层偏移的 mum cross-section flattening in continuous rotary straightening 二辊矫直辊型设计方法.西安交通大学学报，2015,49(7)：2) process of thin-walled circular steel tubes.Mater Process Techn- [5]Wang Y,Liu C,Ma LD,et al.Design of concave roller shape for ol.2016,238:305工程科学学报,第 40 卷,第 12 期 图 12 不同屈服强度情况下的矫直精度 Fig. 12 Straightening accuracy in different yield strength cases 低,屈服强度越高,每次弯曲弹复后的残余曲率水平 越高,但最终均得到矫直,且最终残余曲率值相近. 4 结论 (1)平面小曲率弯曲弹复理论能够适应棒材矫 直的需要,得到的结果与现场生产结果一致. (2)凹辊辊型曲线是使棒材达到一定弯曲曲率 变化的重要影响因素,其辊型曲率的取值直接影响 最终的矫直精度. (3)合理设计的辊型配合一定的角度设定,能 够实现棒材残余曲率逐渐减小,从而实现棒材矫直. 参 考 文 献 [1] Wang Y. Study on Process and Key Technology of Two鄄Roll Straightening [Dissertation]. Qinhuangdao: Yanshan University, 2013 (王云. 棒材二辊矫直过程及关键技术研究[学位论文]. 秦皇 岛:燕山大学,2013) [2] Ma Z Y, Ma L F, Wang R J, et al. Study on control strategies of two鄄roll straightening for bar high precision straightening. J Mech Eng, 2017, 53(20): 77 (马自勇, 马立峰, 王荣军,等. 棒材高精度二辊矫直质量控 制策略研究. 机械工程学报, 2017, 53(20): 77) [3] Cui F. Straightening Principle and Straightening Machine. 2nd Ed. Beijing: Metallurgical Industry Press, 2005 (崔甫. 矫直原理与矫直机械. 2 版. 北京:冶金工业出版社, 2005) [4] Ma L F, Ma Z Y, Ma L D, et al. Design method of roller shape for bar two鄄roll straightener based on plastic 5着t and neutral layer offset. J Xi蒺an Jiaotong Univ,2015, 49(7): 72 (马立峰, 马自勇, 马立东,等. 利用塑性 5着t 与中性层偏移的 二辊矫直辊型设计方法. 西安交通大学学报, 2015, 49(7): 72) [5] Wang Y, Liu C, Ma L D, et al. Design of concave roller shape for two鄄roll straightener. Iron Steel, 2013, 48(4): 45 (王云, 刘才, 马立东, 等. 二辊矫直机凹辊辊形设计. 钢铁, 2013, 48(4):45) [6] Liu Z L, Liu F, Wang Y J. Roller curvature and straightening pre鄄 cision on two鄄roll bar straightener. Iron Steel, 2012, 47(7): 40 (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. 钢铁, 2012, 47(7): 40) [7] Meng Q X, Sun D Y, Xu S M. FEM research on concave roller in two鄄roll large鄄diameter and thick鄄walled tubes straightener. Iron Steel, 2012, 47(7): 49 (孟启星, 孙登月, 许石民. 大直径厚壁管二辊矫直机凹辊辊 型有限元研究. 钢铁, 2012, 47(7): 49) [8] Wang Y, Liu C, Ma L D, et al. Analysis of interval between guides during two鄄roll straightening process. J Jilin Univ Eng Technol Ed, 2013, 43(3): 677 (王云, 刘才, 马立东, 等. 二辊矫直过程导板间距工艺参数 分析. 吉林大学学报(工学版), 2013, 43(3): 677) [9] Wang Y, Liu C, Ma L D, et al. Study of gap between rolls during two鄄roll straightening process. Iron Steel, 2012, 47(9): 50 (王云, 刘才, 马立东, 等. 棒材二辊矫直过程中的辊缝工艺 参数. 钢铁, 2012, 47(9): 50) [10] Jin F S, Sun D Y, Xu S M. Influence of installation angle during two鄄roll straightening for large鄄diameter bar on process parame鄄 ters. J Plast Eng, 2017, 24(3): 154 (金福生, 孙登月, 许石民. 大直径棒材二辊矫直安装角对 工艺参数的影响. 塑性工程学报, 2017, 24(3):154) [11] Petru觢ka J, N觃vrat T, 譒ebek F. Novel approach to computational simulation of cross roll straightening of bars. J Mater Process Technol, 2016, 233: 53 [12] N觃vrat T, Petru觢ka J. Eulerian description of rail straightening process. Appl Mech Mater, 2014, 624: 213 [13] Liu Z F, Wang Y Q, Yan X C. A new model for the plate level鄄 ing process based on curvature integration method. Int J Mech Sci, 2012, 54(1): 213 [14] Mutrux A, Berisha B, Hora P. Prediction of cyclic softening in a medium carbon steel during cross roll straightening. J Mater Process Technol, 2011, 211(8): 1448 [15] Wu B J, Chan L C, Lee T C, et al. A study on the precision modeling of the bars produced in two cross鄄roll straightening. J Mater Process Technol, 2000, 99(1鄄3): 202 [16] Yin J, Zhao J, Wang S Y, et al. Principle of multi鄄roller straightening process and quantitative resolutions of straightening strategies. J Iron Steel Res Int, 2014, 21(9):823 [17] Zhang Z Q. Prediction of maximum section flattening of thin鄄 walled circular steel tube in continuous rotary straightening process. J Iron Steel Res Int, 2016, 23(8): 745 [18] Zhang Z Q, Yan Y H, Yang H L. A simplified model of maxi鄄 mum cross鄄section flattening in continuous rotary straightening process of thin鄄walled circular steel tubes. J Mater Process Techn鄄 ol, 2016, 238: 305 ·1556·