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公开(公告)号:US5958267A
公开(公告)日:1999-09-28
申请号:US897142
申请日:1997-07-21
申请人: Andrew A. Lingenfelter , James M. Gehr , Johnny R. Skipper , Robert J. Sziemkiewicz , Jeffrey P. Johnson , Robert A. Haughton , Harry L. Batson , Jaime A. Zuloaga, Jr. , Michael T. Kiernan , John L. Harmon , Edward G. Apple, Jr.
发明人: Andrew A. Lingenfelter , James M. Gehr , Johnny R. Skipper , Robert J. Sziemkiewicz , Jeffrey P. Johnson , Robert A. Haughton , Harry L. Batson , Jaime A. Zuloaga, Jr. , Michael T. Kiernan , John L. Harmon , Edward G. Apple, Jr.
CPC分类号: B23K26/032 , B23K26/04 , B23K26/0823 , B23K26/12 , B23K26/123 , B23K26/127 , B23K26/206 , G21C3/10 , Y02E30/40
摘要: A high pressure laser welding method and apparatus enables seam welding of a nuclear fuel rod at hyperbaric pressure. In an automatic process, a loaded fuel rod and an upper end plug are mated within a sealable weld box. A pressure within the weld box is controlled relative to a pressure within the fuel rod, and a laser assembly welds the seam at hyperbaric pressure. Helium flowing through a laser window nozzle during welding prevents soot contamination of the laser window glass and prevents formation of ionic plasma. The upper end plug fuel rod welding operation is thus reduced to a single step and eliminates inspection related tasks with respect to a sealed hole.
摘要翻译: 一种高压激光焊接方法和装置能够在高压下对核燃料棒进行缝焊。 在自动过程中,装载的燃料棒和上端塞匹配在可密封的焊接盒内。 焊接箱内的压力相对于燃料棒内的压力进行控制,激光组件以高压将焊缝焊接。 在焊接过程中流过激光窗口的氦气可防止激光窗玻璃的灰尘污染,并防止形成离子等离子体。 因此,上端插头燃料棒焊接操作减少到单个步骤,并且消除了与密封孔相关的检查相关任务。