DEVICE FOR SECURING THE BASE OF A CONTAINER FOR THE TRANSPORT AND OR STORAGE OF RADIOACTIVE MATERIALS

摘要

Device for securing the base of a shielded container for the transport and/or storage of highly radioactive materials comprising a sleeve (1) and a non-removable thick metal base (6). The sleeve (1) and base (6) respectively include a mutually engaging inner wall and side wall forming a straight cylinder having a circular cross section, the base (6) being held by shrink-fitting the side wall (12) of the base into the inner wall portion (13) of the opposing sleeve (1). According to the invention, the base is at least partially located within the sleeve (11), said inner wall portion (13) of the sleeve including a counter-shoulder cooperating with a matching shoulder in the side wall (12) of the base. The base (6) is linked to said sleeve by a continuous welding bead on its outer surface and by another welding bead on its inner surface.