锻压技术

辊缝摩擦系数对冷轧机振动的影响

英文标题：Influence of friction coefficient of roll gap on the vibration of cold rolling mill

作者：吴炳胜张一川

单位：河北工程大学

关键词：冷轧机辊缝振动摩擦系数

分类号：

出版年,卷(期):页码：2015,40(10):92-95

摘要：

针对邯钢公司邯宝冷轧厂的生产线在生产过程中因轧机振动而引起的一系列质量问题，从辊缝摩擦系数入手，探讨其对冷轧机振动的影响，得出了适当增加辊缝摩擦系数能有效抑制和抵消轧机振动的结果。通过实验探究影响辊缝摩擦系数的因素，结果表明因咬钢打滑而引起的振动主要是由于咬钢时轧辊摩擦系数过小，轧制压力没有出现峰值；轧制方向轧辊和带钢的表面粗糙度是可以相互转化的，在轴向方向上其粗糙度变化并不明显；压下率的增加使得轧制后带钢表面粗糙度沿轧制方向增加；在干燥条件下轧制时，带钢的前滑区要高于润滑条件下。

For a series of quality problems caused by vibration in the production of Hanbao cold rolling mill, Handan Iron and Steel Company, its influence on the vibration of cold rolling mill was investigated based on the friction coefficient of the roll gap, and the result that appropriately increasing the friction coefficient of the roll gap could inhibit and eliminate the vibration of cold rolling mill was obtained. The factors affecting the friction coefficient of the roll gap were studied through experiments. The results show that the cause of biting slip, which leads to vibration, is mainly the too small friction coefficient without the pressure peak. The roll and strip surface roughness can be transferred with each other along the rolling direction，but the change of roughness in the transverse direction is inconspicuous. The strip surface roughness in the rolling direction increases with the increase of reduction ratio. The forward slip area under dry condition is higher than that under lubricated condition.

基金项目：

河北省国际科技合作计划项目（14391901D）

吴炳胜（1956-），男，硕士，教授

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