Speed simulation of continuous pipe rolling

Abstract

Continuous pipe rolling on a floating or static man� drel is a complex process, conducted in a continuous mill with interacting cells. Therefore, changing the parameters in any section of the continuous mill mod� ifies the parameters throughout the mill line. This is primarily the result of change in the intercell tension of the pipe, which is determined by the rolling speed. As we know, the intercell tension in continuous rolling has a significant influence on the pipe quality. On the one hand, relatively high intercell tension reduces the eccentric discrepancy in the pipe’s wall thickness; on the other, it affects the mean wall thick� ness and, with fluctuations in the course of rolling, it may create longitudinal differences in wall thickness. In addition, increase in intercell tension facilitates pipe capture by the mandrel, especially in the case of