There is increasing demand for direct-supply hot rolled coil to be to the required flatness, without crossbow or longbow, and with minimal residual stress. In practice, strip leaving the finishing mill can be measured without flatness deviations and assumed to be stress free. However, the cold...

The work in this project has involved work on the most important models in the plate rolling mills. The following subjects have been studied : - plate temperature model, - roll force model, - roll thermal expansion, - top-view plate shape, - plate warping and bending. Aceralia has worked with...

5 different roll gap sensors were designed, manufactured and implemented in work rolls for laboratory, pilot and industrial tests in hot and cold rolling conditions. Three friction sensors for roll-strip contact stress evaluation can cover a wide range of rolling conditions: the pin friction...

In this project, hot asymmetric rolling with different asymmetries has been studied. The results show that asymmetric rolling is efficient for thinner dimensions, particularly when using high-speed differences between the work rolls. A decrease in roll force and torque can be obtained. Curvature...