Transactions of Materials and Heat Treatment

Title：Improvement of roller profile calculation and straightening accuracy detection device for tube six-roller straightener

Authors： Liu Zhiliang Zhang Sipeng Li De

Unit： Yanshan University Beijing Jiaotong University Haibin College

KeyWords： six-roller straightener roller profile curvature straightening accuracy on-line detection

ClassificationCode：TG333.3

year,vol(issue):pagenumber：2019,44(12):77-81

Abstract：

In order to improve the straightening accuracy of tube and the detection equipment of the current tube straightener, for the problem that is difficult to straighten the head and tail of tube, based on the principle of six-roller straightening, the full length of tube was straightened by a composite roller profile tube straightener combined with a hyperbolic roller profile and a reverse bending roller profile, and the relationship between stress, strain and curvature in bending deformation was analyzed. Then, the middle pair of rollers adopted the reverse bending roller profile to improve the straightening effect at the end of tube. At the same time, a device for detecting the flatness of tube with an accuracy of 0.01 mm was designed to check whether the straightening products met the requirements. If it was not satisfied, the error data was measured to feed back to the production equipment for timely adjustment to produce high-precision products. The results also provides theoretical support for on-line detection of tube straightening.

Funds：

河北省科技支撑计划项目(16211816)

刘志亮（1962-），男，博士，副教授 E-mail：zhiliangliu@ysu.edu.cn

Reference：

［1］崔甫.矫直原理与矫直机械
［M］. 第2版. 北京：冶金工业出版社，2007.

Cui F. Straightening Principle and Straightening Machine
［M］. The Second Edition. Beijing: Metallurgical Industry Press,2007.

［2］王云,刘才,马立东,等.二辊矫直机凹辊辊型设计
［J］.钢铁,2013,48(4):45-50.

Wang Y,Liu C,Ma L D,et al. Design of concave roller shape for two-roll straightener
［J］. Iron & Steel,2013,48(4):45-50.

［3］Wang Y,Liu C,Ma L D,et al. Numerical simulation and application for process parameters of two-roll straightening
［J］. ICIC Express Letters,2012,6(11): 2781-2787.

［4］张思朋. Φ5~Φ10 mm钛合金管材六辊矫直机辊型曲线设计及矫直精度研究
［D］. 秦皇岛：燕山大学,2016.

Zhang S P. Design of Roll Curve and Straightening Precision of Six-roll Straightener of Titanium Alloy Tube
［D］. Qinhuangdao: Yanshan University,2016.

［5］孙兴德. 管棒材矫直机的应用及展望
［J］. 金属制品,2014,40(4): 39-43.

Sun X D. Application and prospect of tube rod straightener
［J］. Metal Products,2014,40(4): 39-43.

［6］Paech M. A new generation of straightening rolls
［J］. Wire Industry,2002,69(818): 193-194.

［7］Wang C,Zhang Z,Zhai R,et al. Cross-sectional distortion of LSAW pipes in over-bend straightening process
［J］. Thin-walled Structures,2018,129: 85-93.

［8］张立浦.Φ12~Φ20 mm钛合金管材二辊矫直机辊型曲线及矫直精度研究
［D］. 秦皇岛：燕山大学，2013.

Zhang L P. Roller Curve and Straightening Accuracy of Two-roll Straightening for Titanium Alloy Φ12-Φ20 mm Tubes
［D］. Qinhuangdao: Yanshan University,2013.

［9］曹远刚. 冷拔材二辊滚光矫直机分析与设计
［D］. 重庆：重庆大学，2002.

Cao Y G. Analysis and Design of Cold Pulled Material Second Roller Roller straightening Machine
［D］. Chongqing: Chongqing University,2002.

［10］Wang C,Yu G,Wang W,et al. Deflection detection and curve fitting in three-roll continuous straightening process for LSAW pipes
［J］. Journal of Materials Processing Technology,2018,255: 150-160.

［11］吴德阳.高精度管材矫直机的辊形计算
［J］. 中国重型装备,2017,47(2):18-20.

Wu D Y. Roller calculation of high-precision tube straighteners
［J］. China Heavy Equipment,2017,47(2): 18-20.

［12］卢燕,杨胜泉.高精度10辊管材矫直机在实际生产中的应用
［J］. 有色金属加工,2018,47(4):58-61.

Lu Y,Yang S Q. Application of high-precision 10 roller tube straightener in actual production
［J］. Non-ferrous Metal Processing,2018,47(4): 58-61.

Service：

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