Roller Curvature and Straightening Precision on Six and Two-Roller Tube Straightener
LIU Zhi-liang1,XUE Yan-jie1,WANG Ying-jie2
1. College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China 2. Technique Center, Baoshan Iron and Steel Co., Ltd., Shanghai 210900, China
Abstract:In order to improve the straightening quality of pipe straightening machine, based on mechanics of materials and metal elastic-plastic theory, the straightening process of ordinary six-roller straightening machine and two-roller straightener was investigated, and both the advantages and the shortcomings of pipe precision straightening was proposed. A new type of composite pipe straightening machine, six and two pipe straightening machine was presented. A roller-shaped curve and its roll graph were analyzed through Matlab, and theoretical ideal roller curve straightening accuracy was also calculated. Finite element model of the 6+2 pipe straightening machine was built using the finite element software Marc, and the entire straightening process was simulated. On basis of theoretical analysis and numerical calculation, a certain original curvature of the pipe after the straightening of straightness and roundness was analyzed to prove a leveler straightening ability. A new straightening machine was present to improve the quality of pipe straightening.
刘志亮,薛艳杰,王英杰. 6+2管材矫直机辊型曲线设计与矫直精度分析[J]. 钢铁, 2013, 48(3): 40-45.
LIU Zhi-liang,XUE Yan-jie,WANG Ying-jie. Roller Curvature and Straightening Precision on Six and Two-Roller Tube Straightener. Iron and Steel, 2013, 48(3): 40-45.
Min.nullJ.H.Analytical model for prediction of deformed shape in three-roll rolling process[J]..Journal of Materials Processing Technology,v 140,n 1-3 SPEC.,Sep,2003,22:-
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Min.nullJ.H.Analytical model for prediction of deformed shape in three-roll rolling process[J]..Journal of Materials Processing Technology,v 140,n 1-3 SPEC.,Sep,2003,22:-