Cold stamper, useful for producing a media-tight seam of a flat space or curved cooling plate having cooling channels, comprises flat/spatially curved surface that is adapted to a linear structure of a media-tight seam

摘要

The cold stamper comprises a flat or spatially curved surface from which a bead (33) protrudes. The surface is adapted to a linear structure of a media-tight seam to be joined to elements. The bead of the line structure is adapted between a base member (10) and a cover member (6) with a groove structure (11). The flat or spatially curved stamper surface and the bead have a hardness, which is greater than the hardness of the stamper. The bead has a cross-sectional contour, which is present within a circumscribing rectangle base width of 0.2-3 mm and a rectangle height of 0.2-2 mm. The cold stamper comprises a flat or spatially curved surface from which a bead (33) protrudes. The surface is adapted to a linear structure of a media-tight seam to be joined to elements. The bead of the line structure is adapted between a base member (10) and a cover member (6) with a groove structure (11). The flat or spatially curved stamper surface and the bead have a hardness, which is greater than the hardness of the stamper. The bead has a cross-sectional contour, which is present within a circumscribing rectangle base width of 0.2-3 mm and a rectangle height of 0.2-2 mm. A ratio of width to height is 0.5-3. One of upper edges of the bead and a corner of the rectangle are provided with a concave curvature. The upper edge is a circular cross-section with a radius that is less than or equal to height. A surface of the bead has a curable coating. The flat or spatially curved stamper surface has a gloss finish. The bead on a flat or spatially curved plate of the cold stamper has a transverse offset position against an center of the seam. The flat or spatially curved plate has a cross-sectional contour. A ratio of hardness of elements is expressed as given in the specification.