关键词: 小型四辊轧机, 工作辊, 水平位移, 板形

Abstract: In view of the fact that the work roll “long diameter ratio” was larger and the absolute value of the roll diameter was small, it was easy to produce the horizontal displacements of the work roll along the rolling direction for the small four roll mills, the shape calculation model might not meet the accurate calculations and predictions of the exit shapes. Thus, a shape model of the four high rolling mill was established, which considered the horizontal displacements of the work rolls and combined the equipment and processing characteristics of the four high rolling mills.Then it might be tested the accuracy of the results by comparing the shapes. On the basis of the shape model, the laws of horizontal displacements of work rolls, the effects of horizontal displacements of work rolls on the exit shapes and the effects of bending roll forces on the shape control under considerations of the horizontal displacements of the work rolls were analyzed in detail. The model was applied to 650 reversible four high rolling mill in a steel mill and the “effect analysis software of work roll horizontal displacement of 650 reversible four high rolling mill” was compiled, which effectively solved the existing problems of the shape calculation errors and the accurate calculations and predictions of the exit shapes are realized.

Key words: small four high rolling mill, work roll, horizontal displacement, shape