Transactions of Materials and Heat Treatment

Title：Generation mechanism of buckling defects during coiling process for thin strip steel

Authors： Wang Zhiqiang1 Wang Xingdong1 Wu Zongwu1 Xia Jiangtao2 Li Youhua3

Unit： (1.School of Mechanical Automation Wuhan University of Science and Technology Wuhan 430081 China 2.Technology Center Wuhan Iron & Steel Co. Ltd. Wuhan 430080 China 3.Wuhan Iron & Steel Co. Ltd. Wuhan 430080 China)

KeyWords： strip steel coiling initial plate shape buckling coefficient transverse buckling

ClassificationCode：TG306

year,vol(issue):pagenumber：2024,49(12):90-97

Abstract：

Abstract: For the transverse buckling defect problems in the coiling process of thin strip steel, the dynamic simulation model of the strip coiling process was designed by finite element analysis software ABAQUS, and the coordinates of each node of strip steel in the INP file were modified to obtain the different initial plate shapes.

The influence laws of initial plate shape, colling tension and the thickness of strip steel on the transverse buckring defect were analyzed.

The results show that when the thickness of the strip steel is less than 0.2 mm, reducing the coiling tension can improve the transverse buckling defects of the strip steel with the initial plate shape of the quarter wave, composite wave and medium-wave. When the thickness of the strip steel is 0.2 mm, the strip steel with the initial plate shape of the medium wave is the least prone to produce transverse buckling when the coiling tension is 25 MPa, and the transverse buckling is increased by decreasing and increasing the coiling tension. When the coiling tension is constant, the buckling coefficient of each initial strip steel decreases with increasing of thickness, that is, increasing the thickness reduces transverse buckling. The strip steel with double-sided wavy remains at a relatively low level under different tensions and thicknesses, and no transverse buckling defects were found.

Funds：

基金项目:国家自然科学基金资助项目(52375117)

作者简介：王志强(1997-)，男，硕士研究生 E-mail：2439622718@qq.com 通信作者：吴宗武(1987-)，男，硕士，讲师 E-mail：421123a012n.cdb@sina.cn

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