PROCESS FOR MANUFACTURING PACKAGING FOR THE TRANSPORT AND / OR STORAGE OF NUCLEAR MATERIALS USING THE WELDING REMOVAL PHENOMENON

摘要

The invention relates to a method of manufacturing a package (2) for the transport and / or storage of nuclear material, the package comprising an inner shell (20), an outer shell and thermal conduction means ( 16), said method comprising the steps of: - producing, around the thermal conduction means, a substantially circular envelope (22 ') having at least one longitudinal slot defined by two longitudinal edges (42) facing each other; and the assembly by welding of the longitudinal edges opposite, in order to obtain the outer shell, this step being carried out in such a way that the welding shrinkage causes compressive stressing of the thermal conduction means between the inner and outer rings. , in a radial direction of the package.