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1.发明授权Method and means for metal sizing employing thermal expansion and contraction 失效使用热膨胀和收缩的金属尺寸的方法和方法
公开(公告)号：US4989433A
公开(公告)日：1991-02-05
申请号：US317244
申请日：1989-02-28
摘要： An improved method and means for sizing metal configuration through the application of thermal expansion and contraction of a shaping mandrel. The thermally induced changes in the shaping mandrel are produced from within the body at the mandrel.
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公开(公告)号：US5727039A
公开(公告)日：1998-03-10
申请号：US616509
申请日：1996-03-19
申请人： John L. Harmon , Richard G. Patterson , Robert B. Elkins , Russell P. Higgins , Edward A. Croteau , Harold B. King , Christian D. Frederickson , Gerald M. Latter , Anthony P. Reese , David W. White
发明人： John L. Harmon , Richard G. Patterson , Robert B. Elkins , Russell P. Higgins , Edward A. Croteau , Harold B. King , Christian D. Frederickson , Gerald M. Latter , Anthony P. Reese , David W. White
CPC分类号： G21C3/332 , G21Y2002/302 , G21Y2002/304 , G21Y2004/301 , Y02E30/40
摘要： In a nuclear reactor fuel bundle assembly having a plurality of fuel rods and a non-round water rod extending between upper and lower tie plates, and having at least one fuel rod spacer located along the non-round water rod, an improvement which includes cooperating components on the fuel rod spacer and on the water rod for permitting movement of the spacer along the water rod to a desired axial location and for thereafter preventing further axial movement of the spacer in at least one of two opposite axial directions, the cooperating components including at least one spring on one of the spacer and the water rod.
摘要翻译： 在具有多个燃料棒和在上下连接板之间延伸的非圆形水杆的核反应堆燃料束组件中，并且具有沿着非圆形水棒定位的至少一个燃料棒间隔件，其包括配合 燃料棒间隔件和水杆上的部件，用于允许间隔件沿水杆移动到期望的轴向位置，并且此后防止间隔件在两个相对的轴向方向中的至少一个中的进一步的轴向运动，所述协作部件包括 在间隔件和水杆之一上的至少一个弹簧。
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公开(公告)号：US5748691A
公开(公告)日：1998-05-05
申请号：US613488
申请日：1996-03-11
摘要： End plugs for nuclear fuel rods are provided with a spot weld along the interior end face of the end plugs to seal any streamer openings or passages along the axis of the end plugs, thereby maintaining the fuel rods sealed at its opposite ends. The spot welds are applied by an automated laser welding system in which pallets of end plugs are supported on X-Y positioning tables below a laser movable in a vertical direction. By successively locating the end plugs in the pallet below the laser, the spot welds are formed along the axis of the end plugs and along the interior faces thereof sealing the end plugs.
摘要翻译： 用于核燃料棒的端塞在端塞的内端面设置有点焊，以密封沿着端塞的轴线的任何拖缆开口或通道，从而将燃料棒保持在其相对端密封。 点焊通过自动化激光焊接系统施加，其中端板的托盘被支撑在可沿垂直方向移动的激光下方的X-Y定位台上。 通过将端塞连续地定位在激光器下方的托盘中，沿着端塞的轴线并沿其内表面形成点焊密封端塞。
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公开(公告)号：US5413682A
公开(公告)日：1995-05-09
申请号：US218398
申请日：1994-03-28
申请人： Roy F. Thornton , Bang M. Kim , Steven J. Babb , John L. Harmon
发明人： Roy F. Thornton , Bang M. Kim , Steven J. Babb , John L. Harmon
IPC分类号： B01D61/44 , C01B7/19 , C01C1/16 , C01G43/025 , C02F1/469
CPC分类号： C02F1/4693 , B01D61/44 , C01B7/191 , C01C1/16 , C01G43/025 , C02F2201/46115
摘要： Fluoride is recovered from an aqueous ammonium fluoride and ammonium hydroxide solution by electrolyzing the solution in an electrochemical cell having an ion-exchange membrane between a catholyte chamber and an anolyte chamber whereby hydrofluoric acid is formed and the concentration of ammonium hydroxide is enriched. Part of the hydrofluoric acid can be combined with the ammonium fluoride remaining after the ammonium hydroxide had been stripped from the treated solution to produce ammonium acid fluoride.
摘要翻译： 通过在阴极电解液室和阳极电解液室之间的具有离子交换膜的电化学电池中电解电解溶液，从而形成氢氟酸并富集氢氧化铵的浓度，从氟化铵和氢氧化铵水溶液中回收氟化物。 氢氧化钠的一部分可以在从经处理的溶液中汽提出氢氧化铵后留下的氟化铵与氟化铵结合，生成氟化铵。
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5.发明授权
公开(公告)号：US5066429A
公开(公告)日：1991-11-19
申请号：US596433
申请日：1990-10-12
IPC分类号： C01G43/025 , G21C3/62
CPC分类号： G21C3/623 , C01G43/025 , C01P2004/84 , Y02E30/38
摘要： A process for controlling the oxidation reaction of oxides of uranium and fixing the ratio of oxygen to uranium in uranium oxide compounds by means of a passification process, and the stabilized uranium oxide compounds produced therefrom. The method is especially useful in the production of uranium oxide fuel for nuclear reactors.
摘要翻译： 用于控制铀氧化物的氧化反应并通过过氧化方法固定氧化铀化合物中氧与铀的比例的方法和由其制备的稳定化铀氧化物。 该方法在生产用于核反应堆的铀氧化物燃料方面特别有用。
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公开(公告)号：US5386444A
公开(公告)日：1995-01-31
申请号：US4012
申请日：1993-01-15
CPC分类号： G21C3/334 , G21Y2002/301 , G21Y2002/302 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： An apparatus for loading nuclear fuel rods through spacer grid cells of a fuel bundle includes a handle having at least one elongate clip joined thereto, and a flexible tubular sleeve joined to the clip. The clip rigidly supports the sleeve along its longitudinal axis while allowing the sleeve to unfurl perpendicularly thereto for disassembly from a fuel rod. In several embodiments of the invention, the clip may include a slot for bridging adjacent grid cells during assembly, or the clip may be removably fixedly joined to the handle for allowing easy replacement of the sleeves.
摘要翻译： 用于通过燃料束的间隔栅格单元装载核燃料棒的装置包括具有与其连接的至少一个细长夹的手柄和连接到夹子的柔性管状套筒。 夹子沿其纵向轴线刚性地支撑套筒，同时允许套筒垂直地展开以从燃料棒拆卸。 在本发明的几个实施例中，夹具可以包括用于在组装期间桥接相邻格栅单元的狭槽，或者夹子可以可拆卸地固定地连接到手柄以允许容易地更换套筒。
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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。
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8.发明授权
公开(公告)号：US5335577A
公开(公告)日：1994-08-09
申请号：US60133
申请日：1993-05-13
申请人： Steven J. Babb , John L. Harmon
发明人： Steven J. Babb , John L. Harmon
CPC分类号： F04D29/426 , F04D15/0263 , Y10S102/705
摘要： A one-shot thermal fuse mounted directly on the casing of a centrifugal pump to prevent overheating and concentration of ammonium nitrate. The thermal fuse is screwed into a standard pipe coupling welded to a designated location on the pump casing. The thermal fuse has an electrical contact connected in the pump control circuit. A compressed spring is prevented from urging the electrical contact into an open position by a pellet of fusible material which is designed to melt at a desired threshold temperature below the temperature at which ammonium nitrate explodes. If the heat produced by the pump melts the pellet of fusible material, the spring is released, thereby opening the electrical contact and shutting off the pump. Alternatively, the temperature-sensitive element mounted on the pump casing can be a thermocouple or a temperature switch having a bimetallic element.
摘要翻译： 直接安装在离心泵套管上的一体式热熔丝，可防止硝酸铵过热和浓缩。 热保险丝拧入焊接到泵壳上指定位置的标准管接头。 热保险丝在泵控制电路中连接有一个电气触点。 压缩弹簧被阻止通过可熔材料颗粒将电触点推动到打开位置，该芯片设计成在硝酸铵爆炸的温度以下的期望阈值温度下熔化。 如果由泵产生的热量熔化可熔材料的颗粒，则释放弹簧，从而打开电接触并关闭泵。 或者，安装在泵壳体上的温度敏感元件可以是具有双金属元件的热电偶或温度开关。
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公开(公告)号：US5069888A
公开(公告)日：1991-12-03
申请号：US387187
申请日：1989-07-31
申请人： Richard I. Larson , Abdul G. Dada , John L. Harmon
发明人： Richard I. Larson , Abdul G. Dada , John L. Harmon
CPC分类号： C04B41/009 , C01G43/025 , C04B41/4584 , C04B41/81 , G21C3/62 , C01P2002/20 , C01P2002/78 , C01P2004/84 , C01P2006/10 , C01P2006/12 , C01P2006/60 , C01P2006/80 , C01P2006/82 , Y02E30/38
摘要： A method of passivating the surface of particulate uranium oxides is disclosed comprising a process of continuously contacting uranium oxide particles with an oxygen containing and cooling counter flowing gas stream. The treatment produces a protective surface which inhibits subsequent oxygen chemisorption of the particulate uranium oxides.
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公开(公告)号：US4576654A
公开(公告)日：1986-03-18
申请号：US438515
申请日：1982-11-01
CPC分类号： C22F1/186 , G21C21/02 , G21Y2002/103 , G21Y2004/10 , G21Y2004/201
摘要： There is provided a nuclear fuel element having a zirconium alloy cladding tube with improved corrosion resistance. The cladding tube comprises a metallurgical gradient across the width of the tube wall wherein the tube has a more corrosion-resistant metallurgical condition at the outer circumference and a less corrosion-resistant metallurgical condition at the inner circumference. The metallurgical gradient can be generated by heating an outer circumferential portion of the tube to the high alpha or mixed alpha plus beta range while maintaining the inner surface at a lower temperature, followed by cooling of the tube.
摘要翻译： 提供了具有耐腐蚀性提高的锆合金包覆管的核燃料元件。 包层管包括横跨管壁的宽度的冶金梯度，其中管在外周具有更耐蚀的冶金条件，在内圆周处具有较少的耐腐蚀冶金条件。 可以通过将管的外周部分加热到高α或混合α+β范围同时将内表面保持在较低温度，随后冷却管而产生冶金梯度。
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