发明授权
- 专利标题： Fuel rod for light water reactor and method for manufacturing the same
- 专利标题（中）： 轻水反应堆用燃料棒及其制造方法
-
申请号： US908694申请日： 1997-08-08
-
公开(公告)号： US6014418A公开(公告)日： 2000-01-11
- 发明人: Takeshi Isobe , Yoshiharu Mae , Toshimichi Takahashi , Yoshitaka Suda , Akio Sando , Eiji Yoneda
- 申请人： Takeshi Isobe , Yoshiharu Mae , Toshimichi Takahashi , Yoshitaka Suda , Akio Sando , Eiji Yoneda
- 申请人地址： JPX Tokyo JPX Tokyo JPX Tokyo
- 专利权人： Mitsubishi Materials Corporation,Mitsubishi Heavy Industries, Ltd,Mitsubishi Nuclear Fuel Co., Ltd.
- 当前专利权人： Mitsubishi Materials Corporation,Mitsubishi Heavy Industries, Ltd,Mitsubishi Nuclear Fuel Co., Ltd.
- 当前专利权人地址： JPX Tokyo JPX Tokyo JPX Tokyo
- 优先权： JPX8-211281 19960908
- 主分类号： G21C3/06
- IPC分类号： G21C3/06 ; G21C3/07 ; G21C21/02
摘要：
A fuel rod for a light water reactor comprises a cladding tube which comprises a zirconium alloy having a composition including 0.6 to 2.0% by weight of Nb, 0.5 to 1.5% by weight of Sn, 0.05 to 0.3% by weight of Fe, and the balance being Zr and incidental impurities; uranium oxide fuel pellets packed in the cladding tube; and end plugs comprising a zirconium alloy and closing both ends of the cladding tube. The cladding tube is sealed by TIG welding with the end plugs. Grain boundaries in each heat affected zone of the cladding tube, which are adjacent to a bead formed by TIG welding, have structural compositions including 4 to 30% by weight of Nb, and 0.9 to 20% by weight of Fe.
公开/授权文献
- US4738043A Message board 公开/授权日：1988-04-19
信息查询
