| abstract |
The invention relates to a method for producing a beverage can for carbonated overpressures beverages such as beer, lemonade or mineral water with a cylindrical multilayer jacket with a liquid-tight barrier layer, at least one layer of cardboard or paper and an inner and outer surface of weldable plastic, wherein after the cylindrical jacket has been made, a bottom and a cover are attached to it, wherein for producing the cylindrical shell a multilayer endless web (5) having a width corresponding to the cylinder circumference plus an overlapping width, via a free arm (1) to a cylindrical tube (5) 6) and in this case is pushed further, wherein the two longitudinal edges (6a, 6b) of the endless web (5) overlap each other such that the inner surface of a longitudinal edge (6a) on the outer surface of the other longitudinal edge (6b) is such that a Pipe with a length arises that much times the height of the can barrel, wherein the inside of the curved endless web (5) lying free arm (1) in height of the overlap region of the longitudinal edges (6a, 6b) carries a welding surface, which lies on the outside of the hose an outer welding surface to the two Longitudinal edges (6a, 6b) to be welded together under pressure, and after welding the overlapping longitudinal edges (6a, 6b), the tube (6) is cut into individual cylinders from the height of the can jacket. |