Granulated nuclear materials prepn. for storage - by enclosure in tubes with impervious walls, compacting by vibration and drawing, winding, and casting in aluminium

摘要

The method comprises enclosing the materials by vibration in finite lengths of tubes with impervious walls. Each tube is closed at the ends by pinching and welding, after plugging with a non-radioactive powder e.g. of a metal alloy. The tube is then drawn, or flattened between two rollers, to compact it, wound into a spiral and covered by casting in a continuous medium. The process overcomes problems associated with the formation of a powder of radioactive material encountered in the parent patent. In addn. the welding is more easily controlled and compacting is improved.