|
|
|
| Calculation of Thermal Stress Affecting Strip Flatness During RunOut Table Cooling of ASP 1700 Strip Mill |
| SU Yanping1,YANG Quan1,HE Anrui1,WANG Xiaodong2,BIAN Haitao1 |
| 1. National Engineering Research Center for Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China;2.Shougang Research Institute of Technology, Shougang Group Corporation, Beijing 100041, China |
|
|
|
|
Abstract A numerical analysis of the thermal stress generated during cooling of hot rolled strip on runout table of ASP1700 was performed by means of finite element program ABAQUS.For studying trend of flatness change during cooling of strip.The results demonstrated that temperature drop at strip edges leads to a residual stress distribution pattern with tensile at strip center and compressive stress at edges.Thus a trend of edge wave formation is observed as proved by the practice of skin pass rolling.A compensation control strategy, named slight center wave rolling, was proposed based on the FE analysis work to compensate the edge wave during the cooling, and adopted on ASP1700. The validity of this control strategy was confirmed by the practice.
|
|
Received: 01 January 1900
|
|
|
|
| [1] |
SUN Jian-liang， LI Shuo， JIAO Yun-jing， SUN Meng-qian， ZHANG Xin-you. Large cylinder induction heating process technology based on Curie point effect[J]. Iron and Steel, 2019, 54(5): 78-85. |
| [2] |
XUE Li-min，，FAN Zheng-yun，，，ZHU Chang-jun，PENG Jun-shan， DONG Feng-jie，GUO Hai-tao. Stress on internal wall of annular air duct of 260 t/h large coke dry quenching[J]. Iron and Steel, 2019, 54(1): 96-99. |
| [3] |
WEN Guo-dong，LIU He-jia. Analysis and solution for the cracking of ERW welded pipe[J]. , 2018, 36(5): 36-39. |
| [4] |
CHEN Wei，，YU Xing-wang，，WANG Jia-qi，，WANG Bao-xiang，，CHEN Ying，，MA Jin-hong，. Initiation locations of longitudinal surface cracks on beam blank in mold of continuous casting[J]. Iron and Steel, 2017, 52(3): 36-41. |
| [5] |
XU Xiao-qing,,HAO Xiao-dong,FU Song-lin，ZHOU Shi-guang ,LIU Chang-sheng,ZHANG Qi-fu. Cooling route control based on temperature observer for laminar cooling process[J]. Chinese Journal of Iron and Steel, 2017, 29(1): 81-86. |
| [6] |
MA Yu- xi,DUAN Xiao- lin,LIU Jing,GUO Bin,TAO Jun- hui,DU Ming. Cause of cracking of 800MPa grade Ti- added high strength steel cast slab[J]. Chinese Journal of Iron and Steel, 2016, 28(2): 51-56. |
|
|
|
|
2008, Vol. 43 
