Bayer Aktiengesellschaft

Covestro Deutschland Ag

Jürgen Flecke

Bahman Sarabi

Thomas Mrziglod

Martin Wanders

Klaus Salewski

Roland Loosen

Jörg Nickel

Alexander Paulus

Andreas Weistroffer

The present invention relates to a roller device for treating sheet-form material, in particular for smoothing films (F*) or sheets, comprising a first roller unitand a second roller unit, wherein each roller unit () comprises: where where n: speed of the drive motor and n: speed of the roller (). The invention relates further to a smoothing device for smoothing films or sheets, and to a process for the production of sheet-form material, in particular of films or sheets.

Roller device for treating flat material, in particular for smoothing foils or plates, smoothing device, and method for producing flat material, in particular foils or plates

A method of determining properties relating to the manufacture of an injection-molded article is described. The method makes use of a hybrid model which includes at least one neural network and at least one rigorous model. In order to forecast (or predict) properties relating to the manufacture of a plastic molded part, a hybrid model is used which includes: one or more neural networks NN, NN, NN, NN, . . . , NN; and one or more rigorous models R, R, R, R, . . . , which are connected to one another. The rigorous models are used to map model elements which can be described in mathematical formulae. The neural model elements are used to map processes whose relationship is present only in the form of data, as it is typically impossible to model such processes rigorously. As a result, a forecast (or prediction) relating to properties including, for example, the mechanical, thermal and rheological processing properties and relating to the cycle time of a plastic molded part can be made.

Hybrid model and method for determining manufacturing properties of an injection-molded part

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Dormagen, Germany

Jürgen Flecke