Principle of Tension Control in the Machine Frame of Medium and Heavy Rolling Mill Group
Introduction
Tension control is a key factor in the production process of the medium and heavy rolling mill group. It refers to the adjustment of axial tension between the work roll and the support roll to obtain an ideal roll bite, thereby achieving the required plate thickness, shape and size. In this paper, we will discuss the basic principle of tension control in the machine frame of medium and heavy rolling mill groups.
Basic Principle
The basic idea of tension control in the machine frame of medium and heavy rolling mill groups is to create an appropriate amount of axial tension between the work roll and the support roll, so that the roll bite can be adjusted and the required plate thickness, shape and size can be obtained.
1. Roll force calibration: The most important part of tension control in the machine frame of medium and heavy rolling mill groups is the calibration of the roll force. First of all, the roll force should be calibrated before the equipment is put into operation, and then the roll force should be adjusted after the equipment is put into production. In calibration of the roll force, an appropriate gap should be selected between the work roll and the support roll, so that the roll force can be adjusted accurately and uniformly.
2. Roll gap adjustment: The roll gap is the distance between the work roll and the support roll. It is necessary to adjust the roll gap in order to obtain the required plate thickness, shape and size.
First of all, the work roll should be moved apart from the support roll to get a larger gap, and then the gap should be adjusted to the required size. During the adjustment, the amount of axial tension between the work roll and the support roll should also be adjusted accordingly.
3. Control of axial tension: To ensure the accuracy of the required plate thickness, shape and size, it is necessary to control the axial tension between the work roll and the support roll. The amount of axial tension should be adjusted by adjusting the position of the roller simultaneously. The axial force can be measured by using special sensors.
Conclusion
The tension control in the machine frame of medium and heavy rolling mill groups is a key factor in the production process. It is necessary to calibrate the roll force, adjust the roll gap, and control the axial tension between the work roll and the support roll in order to obtain the required plate thickness, shape and size. By understanding and following the basic principle of tension control in the machine frame of medium and heavy rolling mill groups, it is possible to realize the maximum effect of the production process.
