| 摘要 |
FIELD: physics; heating. ^ SUBSTANCE: invention can be applied for manufacturing structure elements and, in particular, fuel assemblies of power reactors of PWR-1000 type. Guide channel of nuclear reactor fuel assembly assemblages contains pipeline, tip and pickup sleeve, the pipeline located at its different ends and weld-seamed to it having ring cavity within weld seam area. Minimum width of welded seam within pickup sleeve alloying with external surface of pipeline is greater or equal to pipeline wall thickness. Minimum size of welded seam net section is greater or equal to one forth of pipeline wall thickness. ^ EFFECT: improved reliability of channel design. ^ 1 dwg |
