Invention Grant
US07715518B2 Method, use and device concerning cladding tubes for nuclear fuel and a fuel assembly for a nuclear boiling water reactor
有权
用于核燃料的包覆管和核沸水反应堆的燃料组件的方法,用途和装置
- Patent Title: Method, use and device concerning cladding tubes for nuclear fuel and a fuel assembly for a nuclear boiling water reactor
- Patent Title (中): 用于核燃料的包覆管和核沸水反应堆的燃料组件的方法,用途和装置
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Application No.: US10517020Application Date: 2003-06-04
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Publication No.: US07715518B2Publication Date: 2010-05-11
- Inventor: Mats Dahlbäck , Magnus Limbäck
- Applicant: Mats Dahlbäck , Magnus Limbäck
- Applicant Address: SE Vasteras
- Assignee: Westinghouse Electric Sweden AB
- Current Assignee: Westinghouse Electric Sweden AB
- Current Assignee Address: SE Vasteras
- Agency: Hanify & King, P.C.
- Priority: SE0201744 20020607
- International Application: PCT/SE03/00920 WO 20030604
- International Announcement: WO03/004510 WO 20031218
- Main IPC: G21C3/00
- IPC: G21C3/00

Abstract:
The invention concerns a method of producing a cladding tube for nuclear fuel for a nuclear boiling water reactor. According to the method, a tube is formed which comprises an outer cylindrical component (10) mainly containing zirconium and an inner cylindrical component (20) metallurgically bonded to the outer component (10), wherein also the inner component (20) at least mainly contains zirconium. The inner component (20) has a lower recrystallization temperature than the outer component (10). The cladding tube is final annealed at a temperature and during a time such that the inner component (20) substantially completely recrystallizes and such that the outer component (10) partly recrystallizes but to a lower extent than the inner component (20). The invention also concerns a cladding tube, a fuel assembly for a boiling water reactor as well as the use of a cladding tube.
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