Minimum Tension Control In Rolling Mill

Tension control is one of the most important process parameters in tandem cold mill tcm.

Minimum tension control in rolling mill.

This parameter directly related to rolling fundamentals simplifies the setup and operator control. Looper and tension control shown in fig. Cobble grooves mill speed motor roll gap rolling mill rolls tension control yield. Interstand tension should be maintained at acceptable levels.

The error of motor torque in the k th sample is as follows. Changing roll velocity stabilizes the interstand tension. F t t r t m 3 where t r is the output torque of motor in tension free rolling. No matter if you have one strand or two we have the solution for controlling your mill.

The problem of achieving minimum bar tension in a merchant bar rolling mill without direct tension measurement is considered. The aim of the tension control in the mill is to control the stands speed and to maintain the stable and low tension conditions. Roundness is defined as the difference between maximum diameter and minimum diameter. 2 is important in hot strip mills because they affect both the dimensional quality and the mass flow of a strip the high strip tension between stands induces width shrinkage thickness reduction and moreover can produce an edge wave on a strip.

T m is the output torque of motor in minimum tension. Tolerance is the allowable difference in maximum minimum dimensions with respect to nominal dimensions. During production the loop and tension control automatically adjust the r factor ensuring minimum material stress between the stands. Control target of minimum tension control the definition is as follows.