公开(公告)号：US10286494B2

公开(公告)日：2019-05-14

申请号：US15018961

申请日：2016-02-09

申请人： Kabushiki Kaisha Toshiba

发明人： Akira Yamamoto ,  Yoshiaki Ono ,  Daiki Maruyama

IPC分类号： B23K31/02 ,  G21C13/00 ,  G21C13/02 ,  G21C13/08 ,  B23K101/12 ,  G21C13/024 ,  G21C13/087 ,  G21C13/093

摘要： A method for manufacturing a core barrel according to the embodiment includes: welding one end part of a short ring to a lower core support plate; and machining the lower core support plate to which the short ring is welded. The machining of the lower core support plate includes forming a placement surface on which the fuel assembly is to be placed; and forming a fuel alignment pin hole, in which a fuel alignment pin for positioning the fuel assembly is to be inserted. After the machining of the lower core support plate, a main body barrel is welded to the other end part of the short ring, where the main body barrel covers the reactor core including the fuel assembly to be placed on the placement surface.