Chill tube

Abstract

A chill tube ( 1 ) having a double T-shaped inner and outer cross section in beam blank format is encased in a water-guiding jacket ( 12 ) adapted to its outer contour while forming a water gap ( 14 ). The wall thickness (D) of chill tube ( 1 ) in the rounded transition regions ( 2 ) from middle crosspieces ( 4 ), which face each other head to head and are drawn in towards longitudinal axis ( 3 ), to the neighboring crosswise positioned flanges ( 5 ) is dimensioned at least partially smaller than in the remaining wall sections ( 6, 7 ). The reduction in wall thickness is implemented by longitudinal hollow recesses ( 8 ). These recesses ( 8 ) 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 ( 1 ) as well as the inner contour of water-guiding jacket ( 12 ), filler pieces ( 17 ) are incorporated, adapted to this cross section.

What is claimed is:  
     
         1 . A chill tube having a double T-shaped inner and outer cross section in beam blank format, the chill tube being encased in a water-guiding jacket ( 12 ) adapted to its outer contour while forming a water gap ( 14 ), wherein the wall thickness (D) of chill tube ( 1 ) in the rounded transition regions ( 2 ,  2   a ,  2   b ,  2   c ,  2   d ) from middle crosspieces ( 4 ), which face each other head to head and are drawn in towards longitudinal axis ( 3 ), to the neighboring crosswise positioned flanges ( 5 ) is dimensioned at least partially smaller than in the remaining wall sections ( 6 ,  7 ).  
     
     
         2 . The chill tube according to  claim 1 , wherein the wall thickness (D) in the transition regions ( 2 ,  2   a ,  2   b ,  2   c ,  2   d ) is reduced only in the height range of the bath level.  
     
     
         3 . The chill tube according to  claim 1 , wherein longitudinal hollow recesses ( 8 ) are provided on the outer side of the transition regions  2 .  
     
     
         4 . The chill tube according to  claim 2 , wherein longitudinal hollow recesses ( 8 ) are provided on the outer side of the transition regions  2 .  
     
     
         5 . The chill tube according to  claim 1 , wherein on the outer side of the transition regions ( 2   a ,  2   b ,  2   c ), a plurality of longitudinal grooves ( 18 ,  18   a ,  18   b ) are provided which run next to one another.  
     
     
         6 . The chill tube according to  claim 2 , wherein on the outer side of the transition regions ( 2   a ,  2   b ,  2   c ), a plurality of longitudinal grooves ( 18 ,  18   a ,  18   b ) are provided which run next to one another.  
     
     
         7 . The chill tube according to  claim 1 , wherein in the wall sections of the transition regions ( 2   d ), a plurality of longitudinal bores ( 19 ) are provided which run next to one another.  
     
     
         8 . The chill tube according to  claim 2 , wherein in the wall sections of the transition regions ( 2   d ), a plurality of longitudinal bores ( 19 ) are provided which run next to one another.  
     
     
         9 . The chill tube according to  claim 1 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.  
     
     
         10 . The chill tube according to  claim 2 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.  
     
     
         11 . The chill tube according to  claim 3 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.  
     
     
         12 . The chill tube according to  claim 4 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.  
     
     
         13 . The chill tube according to  claim 5 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.  
     
     
         14 . The chill tube according to  claim 6 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.  
     
     
         15 . The chill tube according to  claim 7 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.  
     
     
         16 . The chill tube according to  claim 8 , wherein the water-guiding jacket ( 12 ) has an essentially rectangular cross section, and, between the water-guiding jacket ( 12 ) as well as the crosspieces ( 4 ) and the flanges ( 5 ), filler pieces ( 17 ) adapted to the cross sectional region by the outer contour of the chill tube ( 1 ) as well as the inner contour of the water-guiding jacket ( 12 ) are incorporated.