| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wrapper tube for a fast reactor which is excellent in reliability by reducing bending after welding. <P>SOLUTION: In a wrapper tube for a fast reactor constituted by welding, to an opening end part 2a of a wrapper tube 1 whose outer shape is polygonal, an opening end part of a joint shell 3 whose outer shape is polygonal in the same way as the wrapper tube 1, a butting face 6 to which an opening end face of the wrapper tube 1 is butted and a centering cylinder part 7 extending in an axial direction of the wrapper tube 1 are adjacently arranged in a thickness direction at the opening end part of the joint shell 3, and the opening end part 2a of the wrapper tube 1 is fit along the centering cylinder part 7, and the opening end face of the wrapper tube 1 is butted to the butting face 6 of the joint shell 3, and the opening end face of the wrapper tube 1 and the butting face 6 of the joint shell 3 are welded. <P>COPYRIGHT: (C)2013,JPO&INPIT |
