薄带硅钢心形屈曲机理及预防方法研究

doi:10.3901/JME.2023.08.121

机械工程学报 ›› 2023, Vol. 59 ›› Issue (8): 121-131.doi: 10.3901/JME.2023.08.121

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薄带硅钢心形屈曲机理及预防方法研究

王兴东¹, 王紫阳¹, 唐伟^1,2, 李军³, 刘贝³, 白浩珂¹

1. 武汉科技大学冶金装备及其控制教育部重点实验室武汉 430081;
2. 武汉国创科光电装备有限公司武汉 430206;
3. 宝武集团武汉钢铁有限公司武汉 430083

收稿日期:2022-05-08 修回日期:2022-12-03 出版日期:2023-04-20 发布日期:2023-06-16
通讯作者: 唐伟,男,1986年出生,博士,讲师。主要研究方向为机械设计及理论、金属学及金属工艺、冶金机械。E-mail:tangwei@wust.edu.cn
作者简介:王兴东，男， 1970 年出生，博士，教授。主要研究方向为金属学及金属工艺、机械动力学分析、机械设计及理论、冶金机械。 E-mail： wangxingdong@wust.edu.cn
基金资助:
国家自然科学基金青年基金资助项目(51701145)

Study on Heart Shaped Buckling Mechanism and Prevention Method of Thin Silicon Steel

WANG Xing-dong¹, WANG Zi-yang¹, TANG Wei^1,2, LI Jun³, LIU Bei³, BAI Hao-ke¹

1. Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan 430081;
2. Wuhan National Innovation Technology Optoelectronics Equipment Co., Ltd.,Wuhan 430206;
3. Wuhan Steel Co., Ltd.,China Baowu Steel Group, Wuhan 430083

Received:2022-05-08 Revised:2022-12-03 Online:2023-04-20 Published:2023-06-16

摘要/Abstract

摘要： 为改善薄带硅钢卸卷后出现的心形屈曲缺陷，建立计及层间摩擦力和料卷各向异性的无芯筒工况收卷-卸卷内应力模型。硅钢表面存在涂层，故进行压缩板叠试验得到0.23 mm硅钢径向模量公式。基于压力埋管理论分析料卷心形屈曲机理，并计算了屈曲层数，计算值与现场26组测量值相吻合，验证了理论的正确性。系统分析助卷张力、助卷层数和稳定张力对屈曲层数的影响。研究表明，屈曲层数随助卷张力增加先减小后增加，助卷张力为30MPa时屈曲层数最少，仅35层；助卷张力与稳定张力之差较大时，层间应力差迅速下降，之后由下降转为上升，最后趋于稳定；助卷层数从10层增加到70层，屈曲层数仅减少7层；稳定张力对屈曲层数影响最显著，稳定张力从26 MPa减小到14 MPa屈曲层数减少40层。

关键词: 薄带硅钢, 心形屈曲, 压缩板叠试验, 无芯筒, 助卷

Abstract: In order to prevent the heart-shaped buckling defect of the steel strip after stripping, an internal stress predict model based on elastic theory is developed for the winding and stripping of the coreless coil. In the model, the interlayer friction is taken into account as well as the anisotropy of the coil. Due to the coating layer on silicon steel strips, a plate stacking experiment was performed for strips with a thickness of 0.23 mm in order to determine their radial modulus. Based on the buried pressure tube model,the heart-shaped buckling mechanism is analyzed. Buckling parameters predicted by the model are consistent with the measurements.The influences of assisted winding tension, assisted winding layers, and the stable winding tension on the buckling layers were investigated. It is found that, The number of buckling layers decreases first and then increases with the increase of coiling tension, and the number of buckling layers is the least when the coiling tension is 30 MPa, only 25 layer. When the difference between assisted winding tension and stable tension is large, the interlayer stress difference curve appears sinking section, and the larger the tension difference is, the more obvious the sinking section is. The number of assisted winding layers increases from 10 layers to 70 layers,while the number of buckling layers decreases only by 7 layers. The stable tension has the most significant effect on the number of buckling layers. When the stable tension decreases from 26 MPa to 14 MPa, the number of buckling layers decreases by 40 layers.

Key words: thin silicon steel strip, heart-shaped buckling, compression plate stack experiment, coreless, assisted winding

中图分类号:

TG335

王兴东, 王紫阳, 唐伟, 李军, 刘贝, 白浩珂. 薄带硅钢心形屈曲机理及预防方法研究[J]. 机械工程学报, 2023, 59(8): 121-131.

WANG Xing-dong, WANG Zi-yang, TANG Wei, LI Jun, LIU Bei, BAI Hao-ke. Study on Heart Shaped Buckling Mechanism and Prevention Method of Thin Silicon Steel[J]. Journal of Mechanical Engineering, 2023, 59(8): 121-131.

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薄带硅钢心形屈曲机理及预防方法研究

Study on Heart Shaped Buckling Mechanism and Prevention Method of Thin Silicon Steel

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