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Residual Curvature of Longitudinal Profile Plate Roller in Leveling Process

Journal of Iron and Steel Research International 2013年第10期20卷 23-27页

作者： CUI Li SHI Quan-qiang LIU Xiang-hua HU Xian-lei Aviation Industry Corporation of China Shenyang Aircraft Corporation Institute of Metal Research Chinese Academy of Sciences State Key Laboratory of Rolling and Automation Northeastern University

Roller leveling process of longitudinal profile （LP） plate is hardly studied because plate thickness changes. Deformation characteristics and residual curvature during LP plate leveling process were investigated based on curva ture integral by elastic plastic differences. It was found that entry intermesh section is reduced with increasing thick- ness and entry intermesh should be from 0.7 to 1.1 mm for LP plate with 42/54 mm in thickness. In order to get satisfactory flatness along longitudinal direction, small entry intermesh should be selected and exit intermesh should be 0 ram. In addition, thickness section for I.P plate which can be leveled by 11 roller leveler is from 24 to 60 mm. Finally, there is an intermesh schedule that could level LP plate with initial curvature less than elastic limit curvature.

关键词： roller leveling LP plate intermesh residual curvature residual stress

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Analysis of Residual Strain in Plate Roller Leveling

Analysis of Residual Strain in Plate Roller Leveling

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第二届先进钢铁结构材料国际会议

作者： ZHOU Cunlong~(1. 2), WANG Junsheng~1, ZHANG Fubo~1, WANG Guodong~1, LIU Xianghua~1, Qin Jianping~2, LI Ke~3 (1. The State Key Lab. of Rolling and Automation of Northeastern University, Shenyang Liaoning 110004 China 2. Taiyuan Heavy Machine Institute, Taiyuan Shanxi 030024 China 3. Shenyang Heavy Machine Co. Ltd., Shenyang Liaoning 110000 China)

＜正＞In many steel-plate factory, intermesh of leveler roller is obtained by experience, but, only taking account of flatness removal, neglecting residual strain, so surface of plate appeared some small slit, leveling passes incresses, curvature have generated after leveling, etc. . The present introduce a simple and practice forming model, based on beam curve theory, according to curvature in leveling., the model can design comportable intermesh of leveler roller, compared with measured value, the model is believable.

关键词： Roller Leveler Residual Strain Flatness Leveling intermesh

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Research on TC4 Alloy Wire Rod Straightening Process

Research on TC4 Alloy Wire Rod Straightening Process

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中国材料大会2012

作者： Jianchao Feng Minghe Chen Chao Zhang Liming Guo Nanjing University of Aeronautics and Astronautics

ISBN: (纸本)9783037856086;3037856084

Titanium alloy are widely used in various fields, such as Aerospace, Marine and Medical. However, the technology of straightening for TC4 wire rod has not been effectively solved, and relevant research is quite rare. TC4 wire rod is difficult to be straightened under room temperature owing to its special properties. In order to solve this problem, this paper designed a parallel roll thermal straightening system and also developed an automatic intermesh calculation software based on Matlab GUI platform to precalculate the settings of straightening device under different temperatures according to straightening theory. Furthermore, numerical simulation method has been used for straightening process with ABAQUS software before the practical straightening experiment. Finally, using the calculated parameters the straightening experiment was carried out, and results show that this method is feasible and effective.

关键词： TC4 wire rod Thermal straightening system intermesh Matlab ABAQUS.

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