Transactions of Materials and Heat Treatment

Title：Deduction and modification of the calculation formula of rolling schedule for plate roller straightener

Authors： straightener Xu Meng Sun Dengyue Xu Shimin Chen Peng Cui Guangjian

Unit： Yanshan University

KeyWords： straightening rolling schedule modification unevenness

ClassificationCode：

year,vol(issue):pagenumber：2016,41(1):83-88

Abstract：

For the straightening unit, the calculation formula of rolling schedule applied to the 2800 seven roller plate straightening machine was deduced by the geometric method considering the difference of roller spacing, and then the modified coefficient X was confirmed. According to the calculation formula, rolling schedules of 30,50 and 70 mm plates were given, and the finite element model of straightening process was established by the FEA software Abaqus. Adjusting the modified coefficient X, the rolling schedules of straightening meeting the requirement of unevenness were obtained. Through processing the data, the relationship between modified coefficient X and thickness was summarized, and the value of the modified coefficient X was determined. The rolling schedules of 40 and 60 mm plates were calculated by the calculation formula, and verified by the FEA method. The result shows that the unevenness of the steel plate is less than 1 mm·m-1 after straightening, which meets the flatness requirements of high quality plate. Therefore,the straightening precision of the calculation formula after the modification of rolling schedules is improved.

Funds：

河北省自然科学基金资助项目（E2012203008）

许猛（1989-），男，硕士，助理工程师

Reference：

[1]王志刚,王辉,李友荣.板带矫直机压下量的计算方法及其对矫直质量的影响[J]. 武汉科技大学学报,2009,32(4):347-350.

Wang Z G,Wang H,Li Y R. Method for calculating the intermesh of straightener and its influence on straightening quality[J]. Journal of Wuhan University of Science and Technology, 2009,32(4):347-350.

[2]连家创.矫直理论与卷曲理论[M].北京：机械工业出版社,2011.

Lian J C. Straightening Theory and Curling Theory[M]. Beijing:China Machine Press, 2011.

[3]连家创.辊式板带矫直机压下量的计算与设定[J]. 冶金设备,2010,(182):1-4.

Lian J C. Draft calculation and setting for roller leveller of strip and plate[J]. Metallurgical Equipment, 2010,(182):1-4.

[4]黄雨华,徐有忠,杨会林.辊式矫直机的矫直变形理论新探[J]. 重型机械,1999,(6):28-30.

Huang Y H,Xu Y Z,Yang H L. New exploration of straightening deformation theory on the roller-strainghtener[J]. Heavy Machinery,1999,(6):28-30

[5]刘志芳.压下量对中厚板矫直过程中关键参数的影响[J].锻压技术,2015,40(5):109-113.

Liu Z F. Influence of rolling reduction on key parameters in the straightening process of plate[J].Forging & Stamping Technology, 2015,40(5):109-113.

[6]白象忠.材料力学[M].北京:科学出版社,2007.

Bai X Z. Mechanics of Materials[M]. Beijing:Science Press,2007.

[7]崔甫.矫直原理与矫直机械[M].北京:冶金工业出版社,2002.

Cui F. Straightening Principle and Straightening Machine[M]. Beijing: Metallurgical Industry Press, 2002.

[8]管奔,臧勇,曲为壮,等. 辊式矫直过程应力演变及其对反弯特性的影响[J].机械工程学报,2012,48(2):81-86.

Guan B,Zang Y,Qu W Z,et al. Stress evolvement and its influence on bending behavior during roller leveling process[J]. Journal of Mechanical Engineering, 2012,48(2):81-86.

[9]王效岗,黄庆学,胡鹰.中厚板辊式矫直过程模型算法修正与应用[J]. 中国机械工程,2012,23(3):335-338.

Wang X G,Huang Q X,Hu Y.Correction and application of numerical model on plate roller levelling[J]. China Mechanical Engineering,2012,23(3):335-338.

[10]Fang M. Complements of tableaux and straightening bideterminants [J]. Journal of Algebra,2009,322:1170-1186.

[11]李庆华，冀方冉，李付国. 塑性变形中应力状态与应力状态参数的关系[J]. 锻压技术，2014，39（3）：122-126.

Li Q H，Ji F R，Li F G. Relationship of stress state and stress state parameters in plastic deformation[J]. Forging & Stamping Technology，2014，39（3）：122-126.

[12]周存龙,徐静,王国栋,等.中厚板热矫直机压下模型[J]. 钢铁研究学报,2006,18(8):28-31.

Zhou C L,Xu J,Wang G D ,et al. Intermesh model of hot roller leveler for plate steel[J]. Journal of Iron and Steel Research, 2006,18(8):28-31.

[13]范为福,乔国谦,黎刚生.金属塑性有限元模拟算法研究[J].锻压技术,2007,32(3):96-99.

Fan W F,Qiao G Q,Li G S.Study on FEM simulation arithmetic of metal plasticity[J].Forging & Stamping Technology, 2007,32(3):96-99.

[14]龚本月,王志刚,李友荣,等.中厚板矫直残余应力仿真[J]. 塑性工程学报,2010,17(6):116-120.

Gong B Y,Wang Z G,Li Y R,et al.Finite element analysis for the residual stress of plate during straightening process[J]. Journal of Plasticity Engineering,2010,17(6):116-120.

[15]张建华,丁磊．ABAQUS基础入门与案例精通[M]．北京：电子工业出版社,2012．

Zhang J H, Ding L. ABAQUS Basics and Cases Master[M]. Beijing: Electronic Industry Press, 2012.

Service：

【This site has not yet opened Download Service】【Add Favorite】