Method of and device for determining a position of the...

B - Operations – Transporting – 22 – D

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B22D 11/16 (2006.01) B22D 11/12 (2006.01) B22D 11/18 (2006.01)

Patent

CA 2552890

The invention relates to a method and to a device which are used to determine the position of the solidification point (1a) in a casting billet (1) during continuous casting of liquid metals, in particular steel work materials. In order to obtain precise results, an indirect measurement of the core volume of liquid per unit of length or an indirect measurement of process parameters, which are to be adjusted by means of force signals and/or path signals (10), are carried out on fixed or adjustable pairs of support rollers (7a) over the entire length of the billet, and a model calculation (15), based on said measuring values, is produced for the momentary position of the solidification point (1a), whereon the changeable casting parameters are adapted in a continuous manner.

L'invention concerne un procédé et un dispositif pour déterminer la position de l'extrémité (1a) du cratère liquide dans la barre de coulée (1) lors de la coulée de métaux liquides, notamment de matériaux d'acier. L'objectif de l'invention est d'améliorer la précision de cette détermination. A cet effet, une mesure indirecte du volume de liquide du coeur par unité de longueur ou sur la totalité de la longueur de la barre est réalisée par mesure indirecte de paramètres de processus par l'intermédiaire de signaux de force et/ou de déplacement (10) sur des paires de rouleaux d'appui (7a) fixes ou réglables. En outre, sur la base de ces valeurs de mesure, un calcul de modèles (15) est effectué pour déterminer la position momentanée de l'extrémité (1a) du cratère liquide, calcul en fonction duquel les paramètres de coulée variables sont adaptés en continu.

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