冷轧带钢卷取过程内应力的逐层增量求解

doi:10.13228/j.boyuan.issn0449-749x.20190175

Abstract
Figure/Table
References
Related Citation (13)

Download: PDF (1066 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The coiling process of strip steel produces internal stress in the coil due to the action of tension. The magnitude and distribution of the internal stress directly affect the occurrence of defects such as the coil collapse and the convexity after rolling. Considering the difference of the radial and circumferential elastic modulus of the coil and the nonlinearity of the radial elastic modulus,based on the plane axisymmetric elastic theory to deduce the incremental solution equation of the internal stress in the coiling process,introducing the corresponding boundary conditions,the article obtains the equations of radial stress increment and displacement increment for each layer of strip in coil with arbitrary number of coiling layers. The effect of strip thickness and coiling tension and unwinding on the drum pressure and stress distribution in the coil is studied based on the incremental solution method. The results are compared with the experimental results, and the correctness of the proposed method is verified.

Key words： strip coiling distribution of stress anisotropy incremental solution

Received: 22 April 2019

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	XIAO Hong
	XU Zi-an
	ZHANG Chun-jie

Cite this article:

XIAO Hong,XU Zi-an,ZHANG Chun-jie. Incremental solution of internal stress in coiling process of cold rolled strip[J]. Iron and Steel, 2020, 55(2): 82-87.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190175 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I2/82

[1] 白振华,司红鑫,周庆田. 冷轧钢卷“心型卷”缺陷的预报及防治技术开发[J]. 钢铁,2013,48(6):45.(BAI Zhen-hua,SI Hong-xin,ZHOU Qing-tian. Prediction and prevention of "heart-shaped coil" defect on cold rolling coil[J]. Iron and Steel,2013,48(6):45.)
[2] 张少红,李秀军,赵胜昔. 冷轧产品心形卷的原因分析[J]. 轧钢,2013,30(1):58.(ZHANG Shao-hong,LI Xiu-jun,ZHAO Sheng-xi. Cause analysis of heart-shaped coils of cold-rolled products[J]. Steel Rolling,2013,30(1):58.)
[3] 林海海,常安,孔凡庆. 冷轧镀锌卷取工艺对塌卷的影响研究[J]. 轧钢,2017,34(3):39.(LIN Hai-hai,CHANG An,KONG Fan-qing. Research on influence of coiling process of cold rolled galvanized strip on coil collapse[J]. Steel Rolling,2017,34(3):39.)
[4] 孙蓟泉. 冷轧钢卷粘结原因及消除措施的研究[D].秦皇岛:燕山大学,2000.(SUN Ji-quan. Study on Origin and Avoidance Means of the Cold Rolling Strip Coil Cohesion[D]. Qinhuangdao:Yanshan University,2000.)
[5] 丛书和. 带材卷取机四棱锥卷筒压力计算[J]. 钢铁,1980,15(3):31.(CONG Shu-he. Calculation of stresses in the quarto-prism mandrels for strip coilers[J]. Iron and Steel,1980,15(3):31.)
[6] 昝现亮. 罩退重卷带头印缺陷原因分析及控制措施[J]. 中国冶金,2019,29(6):72.(ZAN Xian-liang. Cause analysis and control measures of head print defect in batch annealing recoiling linel[J]. China Metallurgy,2019,29(6):72.)
[7] 常安,王树岗,张栋. 薄规格铝镇静钢板形缺陷的控制研究[J]. 钢铁,2017,34(5):35.(CHANG An,WANG Shu-gang,ZHANG Dong. Research on control of shape defect of thin gauge Al-killed steel strip[J]. Iron and Steel,2017,34(5):35.)
[8] WANG Y Q,LI L I. Modeling of stress distribution during strip coiling process[J]. Journal of Iron and Steel Research, International,2012,19(8):6.
[9] Park W W,Kim D K,Yong-Taek Im,et al. Effects of processing parameters on elastic deformation of the coil during the thin-strip coiling process[J]. Metals and Materials International,2014,20(4):719.
[10] 连家创,李俊洪,孙蓟泉. 逐层迭代法计算卷取机卷筒单位压力[J]. 重型机械,2001(6): 6.(LIAN Jia-chuang,LI Jun-hong,SUN Ji-quan. Calculating unit pressure of coiler drum by layer-by-layer iiteration method[J]. Heavy Machinery,2001(6):6.)
[11] 连家创. 矫直理论与卷取理论[M]. 北京:机械工业出版社,2011:91.(LIAN Jia-chuang. Straightening Theory and Coiling Theory[M]. Beijing:Machinery Industry Press,2011:91.)
[12] 徐芝纶. 弹性力学[M]. 北京:高等教育出版社,2016.(XUN Zhi-lun. Elastic Mechanics[M]. Beijing:Higher Education Press,2016.)