Voestalpine Krems Gmbh

Primetals Technologies Austria Gmbh

Alfred Seyr

Axel Rimnac

Christian Rouet

Christian Hauser

Sergey Bragin

Sonja Strasser

Katharina Freinschlag

Du Nguyen Duy

Klaus Jax

Hans Pflügl

Katharina Astleithner

Florian Mayer

Reinhard Pernerstorfer

Phillipp Biegel

A method for determining mechanical properties of a first rolled material by a hybrid model that includes production datasets relating to further rolled materials, a physical production model and a statistical data model. The production dataset relating to the first rolled material is used to determine a first mechanical dataset, a further production dataset and a metallurgical dataset and also a second mechanical dataset. An averaged normalized distance value for production datasets relating to the further rolled materials is determined that is used to ascertain the mechanical properties of the rolled material as a weighted average from the first and second mechanical datasets. When creating the hybrid model, the physical production model is used to determine further production datasets relating to the further rolled goods for training the statistical data model.

Method for determining mechanical properties of a rolled material using a hybrid model

The invention relates to a method for continuously roller-forming and hardening sheet steel in which a sheet steel strip is continuously roller-formed into a profile in a roller-profiling unit, characterized in that the roller-formed profile strand is preheated to a temperature below the austenite starting temperature (Ac) and the roller-formed profile strand is then heated across subregions of its cross-section and/or subregions of its length to a temperature above AC, with the roller-formed profile strand being acted on with tension at least during the heating of subregions to a temperature &#x3e;AC.

Method for producing roller-formed, partially hardened profiles

A profile is produced from a bent metal sheet surrounding an interior space by at least 360&#xb0;, the longitudinal edges of said metal sheet being connected to respectively adjacent wall sections of the metal sheet. The longitudinal edges are separated from the respectively adjacent wall sections or longitudinal edges by spacers and are connected thereto in a form-fitting manner by fasteners such as screws, rivets, or the like.

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Statzendorf, Austria

Alfred Seyr