摘要
根据铝板坯铸轧工艺和铸轧辊的特点,建立铸轧辊变形热力耦合计算分析模型;通过计算得到铸轧力分布规律,分析工艺参数对铸轧力和铸轧辊弹性变形的影响,从而确定计算铸轧辊变形关键的边界条件,并进行实验验证。研究结果表明:铸轧力先增加后减小,呈非对称分布,最大值为100MPa;铸轧辊在不同铸轧工艺参数下的弹性变形呈相似的"马鞍形"曲线,铸轧辊弹性变形最大值为0.303mm;仿真计算结果与测量结果相吻合。
According to the rolled technology and characteristics of roller, the thermo-mechanical coupled mathematical model was established for roller elastic deformation. The law of roll casting force distribution was calculated and the influence of process parameter on the force and roller elastic deformation was analyzed, thus the key boundary conditions were determined to calculate roller elastic deformation and its experimental verification was performed. The results show that casting force distributes asymmetrically and decreases after it increases to 100 MPa. Casting roller elastic deformation distributes the similar saddle-shaped curves under different casting process parameters and the maximum is 0.303 mm. The calculation results agree with the measured data very well.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第4期969-973,共5页
Journal of Central South University:Science and Technology
基金
国家重点基础研究发展规划项目(G1999064906)
国家计委重点科技攻关项目(计高技[1998]1985)
湖南省自然科学基金资助项目(04JJ40037)
湖南省科学基金资助项目(2007GK3051)
湖南省教育厅基金资助项目(02C662)
关键词
铸轧辊
弹性变形
热力耦合
数值模拟
roller
elastic deformation
thermo-mechanical coupling
numerical simulation
