基于配合辊系的楔形板矫直工艺
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摘要
采用常规矫直辊系矫直楔形板严重降低了楔形板矫直范围和效率,为了提高楔形板矫直厚度范围和矫直质量,提出了一种基于配合辊系(大直径矫直辊系和小直径矫直辊系)的楔形板矫直方法。首先研究了配合辊系矫直机辊径、辊距与楔形板矫直效果的关系,设计了楔形板矫直机配合辊系,给出了矫直工艺方案;然后给出了配合辊系矫直楔形板的分区原则,基于有限元法建立了基于配合辊系的楔形板矫直过程有限元模型,仿真结果与实测结果一致,验证了有限元模型的正确性;最后对基于配合辊系的楔形板矫直过程进行仿真,计算了常规辊系和配合辊系下楔形板矫直力及残余应力,分析了不同板厚分区对楔形板矫直效果的影响,结果表明,配合辊系设计方案适合楔形板矫直过程且矫直效果较好。
Applying the conventional straightening roller system in straightening the longitude profiled plate will severely reduce the straightening range and efficiency of the longitude profiled plate. In order to improve the thickness range and straightening quality of the longitude profiled plate,a longitude profiled plate straightening method based on a matching roller system method(large diameter straightening roller system and small diameter straightening roller system)was proposed. Firstly,the relationship between the roll diameter and the roll distance of the straightening machine based on the matching roller system was studied. The matching roller system of longitude profiled plate straightening machine was designed,the straightening technology of longitude profiled plate was proposed. Then,the partition principle of the longitude profiled plate with the matching roller straightening machine was studied. The finite element model of longitude profiled plate straightening process based on the matching roller system was established,and the simulation results were consistent with the measured results,which verified the correctness of the finite element model. Finally,the straightening process of the longitude profiled plate based on the matching roller system was simulated. The straightening force and residual stress of the longitude profiled plate under the conventional roller system and the matching roller system were calculated. The influence of different plate thickness partition on the straightening effect of the longitude profiled plate was analyzed. The results show that the designed matching roller system is suitable for the straightening of the longitude profiled plate and the straightening effect is better.
Applying the conventional straightening roller system in straightening the longitude profiled plate will severely reduce the straightening range and efficiency of the longitude profiled plate. In order to improve the thickness range and straightening quality of the longitude profiled plate,a longitude profiled plate straightening method based on a matching roller system method(large diameter straightening roller system and small diameter straightening roller system)was proposed. Firstly,the relationship between the roll diameter and the roll distance of the straightening machine based on the matching roller system was studied. The matching roller system of longitude profiled plate straightening machine was designed,the straightening technology of longitude profiled plate was proposed. Then,the partition principle of the longitude profiled plate with the matching roller straightening machine was studied. The finite element model of longitude profiled plate straightening process based on the matching roller system was established,and the simulation results were consistent with the measured results,which verified the correctness of the finite element model. Finally,the straightening process of the longitude profiled plate based on the matching roller system was simulated. The straightening force and residual stress of the longitude profiled plate under the conventional roller system and the matching roller system were calculated. The influence of different plate thickness partition on the straightening effect of the longitude profiled plate was analyzed. The results show that the designed matching roller system is suitable for the straightening of the longitude profiled plate and the straightening effect is better.
引文
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[19] CUI Li,SHI Quan-qiang,LIU Xiang-hua,et al. Residual curvature of longitudinal profile plate roller in leveling process[J].Journal of Iron and Steel Research,International,2013,20(10):23.
[20]王亮亮,刘长江,李靖年,等. LP钢板冷矫直工艺探索[J].世界金属导报,2017-01-24(B07).(WANG Liang-liang,LIU Chang-jiang,LI Jing-nian,et al. Cold plate straightening process of LP steel[J]. World Metals Herald,2017-01-24(B07).)
[21]张子骞,颜云辉,杨会林,等.一种冷轧差厚板复合矫直辊系装置及柔性矫直方法:中国,CN105344751A[P]. 2016-02-24.(ZHANG Zi-qian,YAN Yun-hui,YANG Hui-lin,et al. A Cold Rolling Differential Plate Composite Straightening Roller System and Flexible Straightening Method:China,CN105344751A[P]. 2016-02-24.)
[22]文庆明.轧钢机械[M].北京:化学工业出版社,2004.(WEN Qing-ming. Steel Rolling Machinery[M]. Beijing:Chemical Industry Press,2004.)
[2]刘相华,刘鑫,付书涛,等.变厚度板带材产品及其深加工[J].轧钢,2015,32(5):1.(LIU Xiang-hua,LIU Xin,FU Shu-tao,et al. Variable thickness strip and its deep processing[J]. Steel Rolling,2015,32(5):1.)
[3]孙静娜,陈驰,黄华贵,等.基于奥洛万微分方程的变厚度LP板轧制力模型[J].钢铁,2017,52(11):37.(SUN Jing-na,CHEN Chi,HUANG Hua-gui,et al. Rolling force model of longitude profile LP plate based on E Orowan differential equation[J]. Iron and Steel,2017,52(11):37.)
[4]王少飞,窦爱民,时海涛,等. 2 230冷连轧机带头飞翘原因分析与措施[J].中国冶金,2018,28(7):54.(WANG Shao-fei,DOU Ai-min,SHI Hai-tao,et al. Cause analysis and measures for warped head of strip in 2 230 cold tandem mill[J]. China Metallurgy,2018,28(7):54.)
[5]张学峰,王雪松,郑会平,等.首秦公司冷矫直机工艺优化及应用[J].中国冶金,2018,28(8):57.(ZHANG Xue-feng,WANG Xue-song,ZHENG Hui-ping,et al. Process optimization and application of cold leveler in Shouqin Company[J].China Metallurgy,2018,28(8):57.)
[6]崔甫.矫直原理与矫直机械[M]. 2版.北京:冶金工业出版社,2008.(CUI Fu. Straightening Principle and Straightening Machine[M]. 2nd ed. Beijing:Metallurgical Industry Press,2008.)
[7]连家创.辊式板带矫直机压下量的计算和设定[J].冶金设备,2010(4):1.(LIAN Jia-chuang. Calculation and setting of roll reduction for roller plate strip straighteners[J]. Metallurgical Equipment,2010(4):1.)
[8]连家创.矫直理论与卷取理论[M].北京:机械工业出版社,2011.(LIAN Jia-chuang. Straightening Theory and Coiling Theory[M]. Beijing:Mechanical Industry Press,2011.)
[9] Morris J W,Hardy S J,Lees A W,et al. Formation of residual stresses owing to tension levelling of cold rolled strip[J]. Ironmaking and Steelmaking,2001,28(1):44.
[10] Huh H,Lee H W,Park S R,et al. The parametric process design of tension leveling with an elasto plastic finite element method[J]. Materials Processing Technology,2001,113(1):714.
[11]王效岗,黄庆学,马勤,等.厚板不充分变形矫直工艺方案研究[J].塑性工程学报,2008,15(5):191.(WANG Xiao-gang,HUANG Qing-xue,MA Qin,et al. Study on the plane of insufficient deformation and straightening of thick plates[J]. Journal of Plasticity Engineering,2008,15(5):191.)
[12]王勇勤,徐维,严兴春,等.中厚板横向残余应力控制对策研究[J].钢铁,2012,47(4):60.(WANG Yong-qin,XU Wei,YAN Xing-chun,et al. Research on controlling residual stress in width direction of medium plate[J]. Iron and Steel,2012,47(4):60.)
[13] Kleiner M,Kopp R,Homberg W,et al. High-pressure sheet metal forming of tailor rolled blanks[J]. Production Engineering,2004,11(2):109.
[14] Ryabkov N,Jackel F,Van Putten K,et al. Production of blanks with thickness transition in longitudinal and lateral direction through 3D-strip profile rolling[J]. International Journal of Machine Tools and Manufacture,2008,1(1):391.
[15] LIU Xiang-hua. Prospects for variable gauge rolling:Technology,theory and application[J]. Journal of Iron and Steel Research,International,2011,18(1):1.
[16]杜平,胡贤磊,王君,等.变截面轧制过程的多点动态设定[J].钢铁研究学报,2009,21(11):27.(DU Ping,HU Xian-lei,WANG Jun,et al. Multiple point dynamic setting for variable cross section rolling process[J]. Journal of Iron and Steel Research,2009,21(11):27.)
[17]祝夫文,胡贤磊,王市均,等.中厚楔形板轧制的过程控制模型[J].钢铁研究学报,2009,21(7):53.(ZHU Fu-wen,HU Xian-lei,WANG Shi-jun,et al. Rolling process control model of medium and heavy wedge-shaped plate[J]. Journal of Iron and Steel Research,2009,21(7):53.)
[18]高娟.楔形板厚控系统及轧制工艺研究[D].秦皇岛:燕山大学,2008.(GAO Juan. Researching of Automatic Gauge Control and Rolling of Longitudinal Profiled[D]. Qinhuangdao:Yanshan University,2009.)
[19] CUI Li,SHI Quan-qiang,LIU Xiang-hua,et al. Residual curvature of longitudinal profile plate roller in leveling process[J].Journal of Iron and Steel Research,International,2013,20(10):23.
[20]王亮亮,刘长江,李靖年,等. LP钢板冷矫直工艺探索[J].世界金属导报,2017-01-24(B07).(WANG Liang-liang,LIU Chang-jiang,LI Jing-nian,et al. Cold plate straightening process of LP steel[J]. World Metals Herald,2017-01-24(B07).)
[21]张子骞,颜云辉,杨会林,等.一种冷轧差厚板复合矫直辊系装置及柔性矫直方法:中国,CN105344751A[P]. 2016-02-24.(ZHANG Zi-qian,YAN Yun-hui,YANG Hui-lin,et al. A Cold Rolling Differential Plate Composite Straightening Roller System and Flexible Straightening Method:China,CN105344751A[P]. 2016-02-24.)
[22]文庆明.轧钢机械[M].北京:化学工业出版社,2004.(WEN Qing-ming. Steel Rolling Machinery[M]. Beijing:Chemical Industry Press,2004.)