### AUTOMATIC CONTROL METHOD AND APPARATUS FOR A ROLLING MILL ...

According to the present invention a method and apparatus are provided for controlling the delivery gauge of work strip material issuing from a tandem rolling mill, by providing a substantially constant mass flow condition in relation to adjacent roll stands through desired tension operation, sensing a deviation from said desired tension ...

### Minimum Tension in a Merchant Bar Rolling Mill using Modern ...

The problem of achieving minimum bar tension in a merchant bar rolling mill without direct tension measurement is considered. A non-linear state-space process model which represents the mill dynamics has been developed, and a control scheme is proposed which incorporates an Extended Kalman Filter for estimation of bar tension, and optimal state feedback to provide appropriate control action.

### Tension Measuring Method and the Effect of Tension Control on ...

This slight tension control is called the "Tension Free Control". The main technical problem of such control is to detect the inter-stand tension without touching the strip. The tension measurement method shown in this paper is a method which, uses the motor torque and the rolling force of each stand.

### Modeling and Control of Multi Stage Rolling Mill Process ...

Sheet Rolling Mill processes involve progressive thickness reduction of continuous sheet metal in multiple stages. Some of the control variables of interest are exit thickness, throughput and the tension in the sheet as it passes from one stage to the other. Following page has links to the webinar ...