轧制板形对铝板带剪切后宽度影响的研究

Study on the Effect of Rolling Plate Shape on the Width of Aluminum Strip

本文通过试验测出板形指标中的波高、波长及铝板带的宽度,并计算出板形数据、残余应力和宽度偏差,运用MATLAB软件对比波高、板形数据、残余应力与宽度偏差变化趋势之间的关系,并提出减小宽度偏差的措施。结果表明,宽度偏差的变化与波高、板形的变化成正相关性。当板形或残余应力大于某一临界值时,实际宽度相对设定宽度偏大,说明此时板形或残余应力对宽度的变化起主要作用;当板形或残余应力小于相对应的临界值时,实际宽度相对设定宽度既有偏大也有偏小的情况,说明宽度的变化不只是由板形和残余应力决定的。

In this paper,the wave height,wave length and the width of the aluminum plate are measured,and the shape data,residual stress and width deviation were calculated,the relationship between the wave height,the shape data,the variation trend of the residual stress and the width deviation were compared by MATLAB software,and the measures to reduce the width deviation are put forward.The results showed that the variation of the width deviation was positively correlated with the wave height and the shape of the plate.When the plate or the residual stress was greater than a critical value,the actual width was set too wide,which indicated that the shape or residual stress played an important role in the width variation;when the plate or the residual stress was less than the critical value,the relative width of the actual width was both large and small,which indicated the change of width was not only determined by the shape and residual stress.