Rolling process and its influence analysis on hot continuous rolling mill vibration

Abstract

Rolling mill vibration is a worldwide problem, although it has been found that the mill structure defects are the main cause of vibration, but the inhibition measures are difficult to implement. So we discussed the rolling force parameters influence on rolling mill vibration and suppression measures from rolling technology in this article. The results show that the rolling force is increased as the reduction ratio and speed increases, and decreases with the increase in temperature; reduction ratio has more obvious influence than rolling temperature and speed, so we should give priority to the reduction allocation in production. Rolled strip is thinner; the self-excited relations in mill system are stronger, namely the stability of the rolling mill is poor and mill vibration would more likely produce. The comprehensive field tests and analysis were carried out, and it shows that roll horizontal vibration and torsional vibration have less relationship and the mechanism between horizontal and vertical vibration is same.