Siemens Aktiengesellschaft

Hans-Herbert Welker

Thomas Matschullat

Otto Gramckow

Albrecht Sieber

Uwe Stürmer

Hans-Jürgen Oeynhausen

Franz Hartleb

Klaus Pronold

Andreas Kemna

The invention relates to a method for predicting and controlling the castability of liquid steel. According to said method, the chemical composition of a melt to be cast is analyzed, an alloy calculation is carried out, alloy elements and/or additions are determined in order to obtain defined material characteristics of the steel, and operating diagrams are drawn up for further treatment of the melt. The interactions of the alloy and/or addition elements, which influence the castability, are taken into account during the alloy calculation as supplemental conditions.

Method for predicting and controlling the castability of liquid steel

A method and device for producing a strand of metal by means of a continuous-casting installation which has at least one cooling device for cooling the strand, the cooling device being assigned at least one reduction stand for reducing the thickness of the strand, the strand, during the thickness reduction, having a solidified skin and a liquid core. The cooling is set, by means of a temperature and solidification model, in such a manner that the solidification boundary between the solidified skin and the liquid core when the strand enters the reduction stand corresponds to a predetermined set solidification boundary between the solidified skin and the liquid core.

Method and device for making a metal strand

Method and apparatus for controlling the cooling of a strand in a continuous casting installation, in which the cooling or, respectively, the solidification behavior of the strand ensures by means of the quantity of cooling agent used for cooling the strand, whereby the required quantity of cooling agent is determined, constantly and in real time, dependent on a predetermined target temperature distribution. A cooling model is used with which a temperature distribution in the strand can be calculated from a quantity of cooling agent.

Method and apparatus for controlling the cooling of a strand in a

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Herzogenaurach, Germany

Hans-Herbert Welker