燕山大学学报2016，Vol.40Issue(4)：311-318,8.DOI:10.3969/j.issn.1007-791X.2016.04.004
组合式冷轧支承辊热装关键工艺参数模型建立
Mathematical models for key parameters of interference fit for composite back-up roll applied in strip cold rolling
摘要
Abstract
In order to analyze the influence of hot charging parameters, fitting surface status and physical parameters on the perform-ance of composite back-up roll quantitatively, the equations for calculating the radial stress and effective stress on the fitting sur-face, the maximum and minimum shrink range for hot charging, and the bearable torque on the fitting surface are derived.The quan-titative relation between the thickness of roll sleeve, the shrink range and the friction coefficient, the type of drive and the required minimum shrink range and allowable maximum shrink range for hot charging are analyzed.In addition, the influence rule of thickness of roll sleeve, shrink range and friction coefficients on the radial stress, the effective stress and the bearable torque are studied.More-over, the shrinkage fit process of the composite back-up roll is simulated using the ABAQUS based on the FEM methods.The results of effective stress are compared with the analytical results.The results indicate that to increase the yield strength of roll sleeve, and the friction coefficients of fitting surface and to decrease the temperature of outer surface of roll sleeve, not only can reduce the re-quired minimum shrink range and enlarge the allowable maximum shrink range remarkably, but also can raise the bearable torque of fitting surface.These measures can improve the performance effectively and enlarge the field of application of composite back-up roll.关键词
组合式/支承辊/过盈量/辊套厚度/摩擦系数Key words
composite/back-up roll/shrink range/thickness of roll sleeve/friction coefficient分类
矿业与冶金引用本文复制引用
董永刚,宋剑锋,骆国玲,朱衡..组合式冷轧支承辊热装关键工艺参数模型建立[J].燕山大学学报,2016,40(4):311-318,8.基金项目
国家自然科学基金资助项目（50775196）；河北省自然科学基金（钢铁联合研究基金）资助项目 （）
