Community Research and Development Information Service - CORDIS


This project involved work on the most important models in the plate rolling mills, and covered studies of: plate temperature model; roll force model; roll thermal expansion; top-view plate shape; plate warping and bending.

Aceralia has worked with the temperature, force and shape (DAT) models. The changes introduced have imposed a complete tuning of the mill information system, including new hardware, new software, the gathering of data, development of models and evaluation of results.

IRSID has concentrated on the flatness and profile model. FEM calculations were performed in order to develop the new crown and flatness model. An online regression model of the on-load profile of the work roll was developed. The model was tuned through the use of industrial databases. A new 2D model for roll thermal expansion has been developed. A measuring device has been built and tested to tune the new model for thermal expansion.

Rautaruukki has mainly worked with the optimisation of its shape-rolling model (MAS) to increase yield (decrease scrap). It has also developed a neural force model to improve the prediction of force for small passes used within the MAD rolling.

MEFOS has worked with almost all the tasks in the project. Most work has been done in the area of ski-end control where pilot plant trials, statistical modelling and finite element simulations were performed. A neural hybrid force model has been developed which shows that the force model can be improved by including the theoretically calculated force and torque as an input signal.

Additional information

Authors: DE ABAJO N, Aceralia, Avilés (ES);MABELLY P, IRSID, Maizières-lès-Metz (FR);NILSSON A, MEFOS, Luleå (SE);KORHONEN R, Rautaruukki, Raahe (FI)
Bibliographic Reference: EUR 20210 EN (2002), pp.137. Euro: 20.50
Availability: EUR-OP reference: KI-NA-20210-EN-S Available from EUR-OP sales agents. URL:
ISBN: ISBN: 92-828-6731-5
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