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Influence of Outer Parts of a Strip on the Deformation and Force Parameters of Thin-Sheet Rolling
Metallurgist ( IF 0.9 ) Pub Date : 2020-11-01 , DOI: 10.1007/s11015-020-01045-1
R. L. Shatalov , M. A. Kulikov

We present the results of experimental investigations of the distribution of deformation indicators and rolling forces along the length of brass (L63) strips in a 150 × 235 two-roll mill equipped with a microcontroller system for high-precision measurements of loads acting upon the rolls. The results of the quantitative analyses of changes in the sizes of strips and rolling forces on stationary and nonstationary sections along the strip length are presented. A significant effect of the outer parts of the strip on the rolling force and the pressure of the metal upon the rolls is established. On the basis of the experimental results, we propose an equation for the evaluation of the influence of the outer parts of the strip on the rolling force and pressure. The equation for the mean pressure of the metal upon the rolls is improved with regard for the influence of the outer parts and the stiffness of the strip on the site of deformation in the process of thin-sheet rolling. It is shown that the proposed equations make it possible to increase the accuracy of evaluation of pressure and determination of rolling forces along the length of thin strips.

中文翻译:

带钢外部对薄板轧制变形和受力参数的影响

我们展示了在 150 × 235 双辊轧机中变形指标和轧制力沿黄铜 (L63) 带钢长度分布的实验研究结果,该轧机配备了微控制器系统,用于高精度测量作用在轧辊上的载荷. 介绍了沿带钢长度的固定和非固定部分的带钢尺寸和轧制力变化的定量分析结果。带材的外部对轧制力和金属对轧辊的压力有显着影响。在实验结果的基础上,我们提出了一个方程来评估带钢外部对轧制力和压力的影响。在薄板轧制过程中,考虑外部件和带钢刚度对变形部位的影响,改进了金属对轧辊的平均压力方程。结果表明,所提出的方程可以提高沿薄带材长度的压力评估和轧制力确定的准确性。
更新日期:2020-11-01
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