Process and equipment for producing thin slabs

Details Process and equipment for producing thin slabs Process and equipment for producing thin slabs

B - Operations, Transporting

21

B

B21B 13/22 (2006.01) B21B 1/46 (2006.01) B22D 11/12 (2006.01)

Patent

CA 2428528

The invention relates to a method for producing thin slabs whereby the cross- section thereof is reduced during solidification in a continuous casting device wherein the stand guide adjacent to the mould comprises wedge-shaped adjustable roller-strand sections for regulating the thickness of the strand or the thin slabs. According to the invention, the thickness of the strand is reduced only on one point of the strand guide below the first segment downstream from the mould in an area of the strand containing a liquid core by regulating the strand guide rollers with a soft transition. The segment following the segment situated directly after the mould comprises a pivoting point on the input side and an adjusting means arranged on the output side.

L'invention concerne un procédé de fabrication de brames minces, dont la section transversale se réduit pendant la solidification, dans une installation de coulée continue. Dans cette installation, le guidage de la barre faisant suite à la lingotière comporte des segments sous forme de rouleaux et de barres réglés par cales pour modifier l'épaisseur des barres et des brames minces. Selon l'invention, l'épaisseur de la barre est réduite, par transition douce, seulement à un endroit du guidage de la barre, sous le premier segment suivant la lingotière, dans une zone de la barre présentant un noyau liquide, et par réglage par cale des rouleaux de guidage qui s'y trouvent. A cet effet, le segment suivant celui qui se trouve directement après la lingotière comprend un point de pivotement côté entrée et des éléments de réglage côté sortie.

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