Roller body with profile channels for a thermal treatment fluid

Abstract

A roller body for treating a web-shaped material, comprising a shell and profiles which are arranged on an inner circumferential area of the shell, distributed about a rotational axis of the roller body, and together with the shell form channels for a thermal treatment fluid which extend at least substantially axially The shell forms an outer wall and the profiles form side walls of the channels respectively The side walls are each connected to the shell by means of a connecting seam produced by a material fit; and the side walls of immediately adjacent profiles exhibit an inclination of less than 90° to the shell in their cross-section up to the connecting seam such that they point away from each other from the connecting seam outwards.

1 - 27 . (canceled) 
   
   
       28 . A roller body for treating a web-shaped material, comprising:
 a shell; and   a plurality of profiles which are arranged on an inner circumferential area of the shell, distributed about a rotational axis of the roller body, and together with the shell form channels for a thermal treatment fluid which extend at least substantially axially;   wherein the shell forms an outer wall and the profiles form side walls of the channels, respectively;   and wherein the side walls are each connected to the shell by means of a connecting seam produced by a material fit;   wherein the side walls of immediately adjacent profiles exhibit an inclination of less than 90° to the shell in their cross-section up to the connecting seam, such that they point away from each other directly from the connecting seam.   
   
   
       29 . The roller body according to  claim 28 , wherein the profiles each comprise a first limb and a second limb which form the side walls and extend towards an open side of the profile and respectively terminate in one of the connecting seams via their facing sides. 
   
   
       30 . The roller body according to  claim 28 , wherein the side walls point towards the inner areas of the shell and are respectively shaped on their facing side facing the inner area of the shell such that they are in contact with the inner area of the shell over an area or only linearly along an edge when the connecting seams are produced. 
   
   
       31 . The roller body according to  claim 28 , wherein the side walls are linear. 
   
   
       32 . The roller body according to  claim 28 , wherein the profiles are angled profiles. 
   
   
       33 . The roller body according to  claim 32 , wherein the profiles are L profiles or V profiles. 
   
   
       34 . The roller body according to  claim 28 , wherein the side walls each comprise a facing side which faces the shell and encloses an angle with the shell, which is greater than 0° and smaller than 90°, before the respective connecting seam is produced. 
   
   
       35 . The roller body according to  claim 28 , wherein the connecting seams are V seams. 
   
   
       36 . The roller body according to  claim 28 , wherein the connecting seams are welded seams, soldered seams or bonded seams. 
   
   
       37 . The roller body according to  claim 28 , wherein the connecting seams are welded by means of an electron beam or a laser beam or using powder or a shielding gas. 
   
   
       38 . The roller body according to  claim 28 , wherein the ends of the side walls of immediately adjacent profiles on the shell are connected to the shell by means of the same connecting seam or a separate connecting seam each. 
   
   
       39 . The roller body according to  claim 28 , wherein the shell is joined from annular shell parts which extend in the circumferential direction over an angle (y) of at most 180° in each case, and the annular shell parts are joined to each other by means of axially extending connecting seams. 
   
   
       40 . The roller body according to  claim 39 , wherein the annular shell parts are joined to each other by welded seams produced by energy-beam welding. 
   
   
       41 . The roller body according to  claim 28 , wherein fittings which constrict the flow cross-section or produce turbulence are arranged in at least one part of the profiles. 
   
   
       42 . The roller body according to  claim 28 , wherein at least one part of the profiles exhibits a cross-section contour which varies in the axial direction. 
   
   
       43 . The roller body according to  claim 42 , wherein the radial height varies. 
   
   
       44 . The roller body according to  claim 28 , wherein at an axial end of the shell, axially within or outside the shell, a distributor space or collecting space is provided, via which the thermal treatment fluid is distributed into at least a part of the channels or collected from at least a part of the channels. 
   
   
       45 . The roller body according to  claim 44 , wherein a disc-shaped partition structure is arranged at the end in the shell, and the profiles or only a group of the profiles protrude into or through the partition structure, and in that the partition structure is connected to the profiles or only the group of the profiles, circumferentially sealed along its outer circumferential rim about the rotational axis. 
   
   
       46 . The roller body according to  claim 28 , wherein a first group of the profiles exhibit a large cross-section and a second group of the profiles exhibit a comparatively smaller cross-section, and in that at least one of the profiles of the second group is arranged between two profiles of the first group in the circumferential direction about the rotational axis. 
   
   
       47 . The roller body according to  claim 28 , wherein a first group of the profiles are radially high and a second group of the profiles are comparatively radially flat, and in that at least one of the profiles of the second group is arranged between two profiles of the first group in the circumferential direction about the rotational axis. 
   
   
       48 . The roller body according to  claim 28 , wherein a first group of the profiles form outward flow channels and a second group of the profiles form return flow channels. 
   
   
       49 . The roller body according to  claim 48 , wherein at a first axial end of the roller body, axially within or outside the shell, a distributor space connected to the outward flow channels is provided. 
   
   
       50 . The roller body according to  claim 49 , wherein at the first axial end of the roller body, axially within or outside the shell, a collecting space connected to the return flow channels is provided. 
   
   
       51 . The roller body according to  claim 49 , wherein at the other axial end of the roller body, axially within or outside the shell, a collecting space connected to the outward flow channels is provided. 
   
   
       52 . The roller body according to  claim 50 , wherein at the other axial end of the roller body, axially within or outside the shell, a return flow channels is provided. 
   
   
       53 . The roller body according to  claim 48 , wherein: at the end of the roller body, axially within or outside the shell, a disc-shaped partition structure is arranged; the profiles of both groups or only of one of the groups protrude into or through the partition structure; and the partition structure is connected to the profiles protruding into or through it, circumferentially sealed along its outer circumferential rim about the rotational axis. 
   
   
       54 . The roller body according to the  claim 53 , wherein another such disc shaped partition structure is arranged at the end, the first and second group protrude through one of the partition discs and only one of the groups protrudes through the other partition disc. 
   
   
       55 . The roller body according to  claim 28 , wherein a left-hand and a right-hand trunnion flange are connected to the roller body, and an annular distributor space or collecting space, which the roller body closes off radially outwards, is formed on an outer circumference or near an outer circumference by at least one of the trunnion flanges. 
   
   
       56 . The roller body according to  claim 28 , wherein a distributor and collecting system with welded pipes and a welded distributor ring or collecting ring are formed on at least one axial end of the roller body. 
   
   
       57 . A method for manufacturing a roller body according to  claim 28 , wherein: the profiles are arranged on the inner areas of annular shell parts and joined to the annular shell parts by producing the connecting seams; and the annular shell parts joined to the profiles, which each extend in the circumferential direction over an angle (y) of at most 180°, are joined to each other to form the shell. 
   
   
       58 . The method according to  claim 57 , wherein a plurality of the profiles are respectively joined simultaneously to one of the annular shell parts by energy-beam welding with a plurality of energy beams or partial beams of a fanned energy beam.