Strip hot buckling index and its influence factors in continuous annealing process
WANG Rui1,2，BAI Zhen-hua1,2，WANG Yun-xiang1,2，LIU Ya-xing1,2，QIAN Cheng1,2，HUA Chang-chun3
（1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling，Yanshan University，Qinhuangdao 066004，Hebei，China 2. State Key Laboratory of Metastable Materials Science and Technology，Yanshan University， Qinhuangdao 066004，Hebei，China 3. School of Electrical Engineering，Yanshan University，Qinhuangdao 066004，Hebei，China）
Abstract：In allusion to the problem of strip hot buckling in continuous annealing process（CAP）， taking the equipment and technological characteristics of CAP into account， the mechanism of hot buckling and transverse compressive stress from the factors of internal force and external force were analyzed. Basically， the study described the occurrence law of strip hot buckling and firstly put forward the concept of buckling index. Based on above results， the critical buckling condition was presented， and the calculation model of strip buckling index in continuous annealing process was established. The strip buckling index distribution in different processes and the influences of incoming strip shape， transverse temperature difference， roll profile， friction coefficient， tension setting， strip traveling speed on the strip hot buckling index in continuous annealing process were analyzed quantitatively. The related theory was applied to the production and practice. The predictive software of strip buckling in continuous annealing process was developed and the strip buckling was on-line predicted timely， which can lay a solid foundation for the prevention and control of strip buckling defects.
收稿日期: 2016-04-15
出版日期: 2016-12-09
引用本文:
王 瑞，白振华，王云祥，刘亚星，钱 承，华长春. 连退过程带钢热瓢曲指数及其影响因素[J]. 钢铁, 2016, 51(12): 94-102.
WANG Rui，，BAI Zhen-hua，，WANG Yun-xiang，，LIU Ya-xing，，QIAN Cheng，，HUA Chang-chun. Strip hot buckling index and its influence factors in continuous annealing process. Iron and Steel, 2016, 51(12): 94-102.
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2016, Vol. 51 
