Chill tube

B - Operations – Transporting – 22 – D

Patent

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Details

B22D 11/22 (2006.01) B22D 11/04 (2006.01) F28F 1/00 (2006.01)

Patent

CA 2415517

A chill tube having a double T-shaped inner and outer cross-section in beam blank format is encased in a water-guiding jacket adapted to its outer contour while forming a water gap. The wall thickness of the chill tube in the rounded transition regions from middle crosspieces, which face each other head to head and are drawn in towards the longitudinal axis, to the neighboring crosswise positioned flanges is dimensioned at least partially smaller than in the remaining wall sections. The reduction in wall thickness is implemented by longitudinal hollow recesses. These recesses extend only in the height range of the bath level. Into the cross-sectional regions which are formed by the outer contour of chill tube as well as the inner contour of the water-guiding jacket, filler pieces are incorporated, which are adapted to this cross-section.

Un tube refroidisseur doté d'une double section transversale interne et externe en T dans un format de découpé de poutre est placé dans une enveloppe de guidage d'eau adapté à son contour externe, tout en formant un écran d'eau. L'épaisseur de la paroi du tube refroidisseur dans les zones de transition arrondies des pièces transversales intermédiaires, disposées en vis-à-vis et inclinées selon l'axe longitudinal, par rapport aux rebords avoisinants positionnés de façon transversale est au moins partiellement inférieure à celle des autres sections de la paroi. La réduction de l'épaisseur de la paroi est assurée par des fraisures creuses longitudinales. Ces fraisures s'étendent seulement sur le plan de la hauteur du niveau de bain. Dans les zones en section transversale qui sont formées par le contour externe du tube refroidisseur ainsi que le contour interne de l'enveloppe de guidage d'eau, on place des pièces de remplissage qui sont adaptées à cette section transversale.

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