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| Strip edge drop prediction model of six-high cold rolling mill |
| CUI Ya-ya1，BAI Zhen-hua1,2，CUI Xi-ying1，LIU Shuo-yang1，JIANG Qing-lin1，GUO Qian-yong1 |
（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） |
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Abstract In order to solve the problem that strip edge drop study is mainly based on the analysis of thickness reduction without involving the strip drop area width and it goes against on-site control，the six-high mill unit was taken as the research object，fully combined with the cold rolling equipment and characteristics and a new method of describing the edge drop was proposed by using the four characteristic parameters such as the edge drop area width，the average drop thickness，the central drop thickness and the maximum drop thickness. After analyzing formation mechanism of strip edge drop through the roll flattening coefficient distribution along the work roll and the transverse flow of the internal metal of the strip，a corresponding mixed correction model of elastic flattening coefficient was established. Then，based on the above research，a set of strip edge drop forecast model for six-high mill was established，and the corresponding method of calculating the weighted elastic flattening coefficient was obtained，which laid theoretical foundation for the control of strip edge drop during the cold rolling.
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Received: 05 June 2017
Published: 05 February 2018
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2018, Vol. 53 
