板形和张力对铝箔卷取过程横向屈曲的影响  

Effect of flatness and tension on aluminum foil transverse buckling during coiling process

作　　者：于海军 何安瑞[1] 陈长科 王修亮 左小刚 YU Haijun;HE Anrui;CHEN Changke;WANG Xiuliang;ZUO Xiaogang(National Engineering Research Center for Advanced Rolling Technology,University of Science and Technology Beijing,Beijing 100083,China;Xinjiang Joinworld Co.Ltd.,Urumqi 830013,China)

机构地区：[1]北京科技大学高效轧制国家工程研究中心,北京100083 [2]新疆众和股份有限公司,新疆乌鲁木齐830013

出　　处：《中南大学学报（自然科学版）》2020年第10期2782-2791,共10页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51674028);广西创新驱动发展专项资金资助项目(GKAA17202008)。

摘　　要：为研究初始板形缺陷和卷取张力对清洗线卷取过程铝箔横向屈曲的影响规律,建立抑制其产生的有效工艺制度,采用有限元软件ABAQUS建立清洗线卷取过程动态仿真模型,通过修改INP文件为铝箔带材施加不同初始板形缺陷,观察不同初始板形缺陷和卷取张力时铝箔卷取过程横向屈曲的情况。研究结果表明:无初始板形缺陷铝箔卷取时仅存在横向起皱,不发生横向屈曲;当浪高和卷取张力一定时,改变浪宽可减少铝箔横向屈曲缺陷;当浪宽和卷取张力一定时,减小浪高可减少铝箔横向屈曲缺陷;当浪高和浪宽一定时,除局部窄浪外,增大卷取张力可减少横向屈曲缺陷;具有双边浪板形缺陷的铝箔,卷取过程中不受浪宽、浪高和卷取张力的影响,卷取时不发生横向屈曲。清洗线卷取过程铝箔横向屈曲可通过测量铝箔初始板形预测,并通过调整卷取张力来减小,有利于提高卷取过程板形质量。In order to study the influence of initial flatness defect and coiling tension on the transverse buckling of aluminum foil and to establish an effective manufacturing technique to suppress its occurrence, a dynamic simulation model of the coiling process in the cleaning line was established by the finite element software ABAQUS. By altering the INP file, the flatness defect type of aluminum foil strip was modified, and then the transverse buckling of aluminum foil with different initial flatness defects and tensions during the coiling process in the cleaning line was observed. The results show that aluminum foil strip has only transverse wrinkles during coiling when there is no initial flatness defect. Keeping coiling tension and wave height constant, transverse buckling of aluminum foil can be reduced by changing the wave width. Keeping coiling tension and wave width constant, aluminum foil transverse buckling can be reduced by reducing the wave height. When the wave height and wave width are determined, an appropriate increase of coiling tension can reduce the transverse buckling defect, which does not work for a local narrow wave. For the aluminum foil with edge wave flatness defect, the width and height of the wave and the coiling tension have few influences on the transverse buckling, and the aluminum foil does not buckle. The transverse buckling of aluminum foil during the coiling process of the cleaning line can be predicted by measuring the initial flatness defect of aluminum foil and reduced by adjusting the coiling tension, which is beneficial to improve aluminum foil flatness quality during the coiling process of the clean line.

关 键 词：初始板形 卷取张力 清洗线 卷取过程 横向屈曲 

分 类 号：TG306[金属学及工艺—金属压力加工]