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1. 发明授权

EP3239985B1 LIGHT-WATER-REACTOR FUEL ROD, AND FUEL ASSEMBLY 有权
公开(公告)号：EP3239985B1
公开(公告)日：2018-12-26
申请号：EP15902245.8
申请日：2015-08-25
申请人： Hitachi, Ltd.
发明人： ISHIBASHI, Ryou , TAKAMORI, Yoshiyuki , ZHANG, Xudong
IPC分类号： G21C3/06 , G21C3/10 , G21C3/30 , G21C21/02 , G21C3/07
CPC分类号： G21C3/10 , G21C3/06 , G21C3/07 , G21C3/30 , G21C21/02 , G21Y2002/102 , G21Y2002/207 , Y02E30/40
摘要： Provided herein is a fuel rod and a fuel assembly for light water reactors in which crack penetration to a fuel cladding tube or an end plug can be prevented even when cracking occurs at the joint between the fuel cladding tube and the end plug for which a ceramic base material is used. A fuel rod 10a for light water reactors includes: a cylindrical cladding tube 11 formed of a ceramic base material; a connection 21 formed of the same or similar material to the cladding tube 11; and an end plug 12a having a concave portion 12f of a continuously curved surface shape adapted to house the connection 21. The end plug 12a is formed of the same or similar material to the cladding tube 11. A slanted surface 11a formed at an end portion of the cladding tube 11, and a slanted surface 12d formed at an end portion of the end plug 12a are joined in contact with each other with a metallic joint material 20. The joint is supported by the connection 21.

2. 发明公开

EP3239985A1 LIGHT-WATER-REACTOR FUEL ROD, AND FUEL ASSEMBLY 有权
标题翻译：轻水反应堆燃料杆和燃料组件
公开(公告)号：EP3239985A1
公开(公告)日：2017-11-01
申请号：EP15902245.8
申请日：2015-08-25
申请人： Hitachi, Ltd.
发明人： ISHIBASHI, Ryou , TAKAMORI, Yoshiyuki , ZHANG, Xudong
IPC分类号： G21C3/06 , G21C3/10 , G21C3/30 , G21C21/02
CPC分类号： G21C3/10 , G21C3/06 , G21C3/07 , G21C3/30 , G21C21/02 , G21Y2002/102 , G21Y2002/207 , Y02E30/40
摘要： Provided herein is a fuel rod and a fuel assembly for light water reactors in which crack penetration to a fuel cladding tube or an end plug can be prevented even when cracking occurs at the joint between the fuel cladding tube and the end plug for which a ceramic base material is used. A fuel rod 10a for light water reactors includes: a cylindrical cladding tube 11 formed of a ceramic base material; a connection 21 formed of the same or similar material to the cladding tube 11; and an end plug 12a having a concave portion 12f of a continuously curved surface shape adapted to house the connection 21. The end plug 12a is formed of the same or similar material to the cladding tube 11. A slanted surface 11a formed at an end portion of the cladding tube 11, and a slanted surface 12d formed at an end portion of the end plug 12a are joined in contact with each other with a metallic joint material 20. The joint is supported by the connection 21.
摘要翻译：本文提供了一种用于轻水反应堆的燃料棒和燃料组件，其中即使在燃料包壳管和陶瓷端塞的接合处发生裂纹时，也可防止裂纹渗入燃料包壳管或端塞，使用基材。用于轻水反应堆的燃料棒10a包括：由陶瓷基材形成的圆筒形包层管11; 由与包壳管11相同或相似的材料形成的连接部21; 以及具有适于容纳连接件21的连续曲面形状的凹部12f的端塞12a。端塞12a由与包层管11相同或类似的材料形成。倾斜表面11a形成在端部以及形成在端塞12a的端部处的倾斜表面12d利用金属接头材料20彼此接触地接合。接头由连接件21支撑。

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