Thermal Deformation Modeling of Post-Rolling Deterioration of Hot Strip Flatness during Forced Cooling of Coils

摘要：

Flatness imperfections are observed during uncoiling of the hot rolled strip after forced cooling of coils to ambient temperature. This problem is significant in thin strip as free defect was considered in the process. A mathematical model for heat transfer and thermal deformation analysis during cooling of hot rolled coils is developed to explain the phenomenon of post-rolling flatness deterioration, and predict the occurrence and magnitude of the defects. The numerical simulation results obtained in this work were experimentally validated. It is shown, at a low coiling temperature allowing the phase transformation to reach completion, that the axial distribution of the temperature mainly causes the variation of the local thermal stress, and will promote the flatness deterioration.

关键词： Hot rolled coils Forced Cooling Heat transfer analysis Thermal deformation analysis

作者: Xianglong Yu Zhengyi Jiang Quan Yang

作者单位: Engineering Research Institute, University Science and Technology Beijing, Beijing 100083, China;Sch School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong,Wollongong NSW Engineering Research Institute, University Science and Technology Beijing, Beijing 100083, China

会议类型: 国际会议

会议名称: International Symposium on Advanced Rolling Equipment Technologies(第一届轧钢设备新技术国际研讨会 ISARET 2010)

会议地点: 太原

会议语种:英文

页码: 111-116

在线出版日期: 2010-09-23（万方平台首次上网日期，不代表论文的发表时间）