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71. 发明授权

US4641408A Plugger guide for aligning an end plug and a fuel rod tube end 失效
标题翻译：用于对准端塞和燃料棒管端的插头指南
公开(公告)号：US4641408A
公开(公告)日：1987-02-10
申请号：US730141
申请日：1985-05-03
申请人： Kenneth K. Klapper , David A. Boatwright
发明人： Kenneth K. Klapper , David A. Boatwright
IPC分类号： G21C21/02 , G21C3/10 , B25B27/14
CPC分类号： G21C3/10 , G21Y2002/204 , G21Y2004/40 , Y02E30/40 , Y10T29/53913
摘要： An apparatus for applying an end plug to a nuclear fuel rod tube end includes a stationary base, a support carriage and a track assembly mounting the support carriage on the base for reciprocal movement relative to the base. The apparatus also includes a plugger guide supported on the carriage for movement therewith. The plugger guide has an elongated central bore with one end for receiving the end plug and an opposite end for receiving the tube end. The plugger guide contains a plurality of sets of bearings in spaced axial positions along the bore which adapts it to guide the tube end toward the end plug for application of the end plug into the tube end as the carriage is moved.
摘要翻译：用于将端塞应用到核燃料棒管端的装置包括固定基座，支撑托架和轨道组件，该支架支架将支撑托架安装在基座上，用于相对于基座的往复运动。该装置还包括支撑在滑架上用于与其一起运动的插塞导向件。插塞引导件具有细长的中心孔，一端用于接收端塞，另一端用于接收管端。插塞引导件包含沿着孔的间隔的轴向位置的多组轴承，其适于使其引导端端朝向端塞，以在托架移动时将端塞施加到管端。

72. 发明授权

US4576654A Heat treated tube 失效
标题翻译：热处理管
公开(公告)号：US4576654A
公开(公告)日：1986-03-18
申请号：US438515
申请日：1982-11-01
申请人： Fletcher C. Eddens , David W. White , John L. Harmon
发明人： Fletcher C. Eddens , David W. White , John L. Harmon
IPC分类号： C22F1/18 , G21C21/02
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。

73. 发明授权

US4570051A Enclosing a gas in a nuclear reactor fuel rod 失效
标题翻译：在核反应堆燃料棒中包围气体
公开(公告)号：US4570051A
公开(公告)日：1986-02-11
申请号：US449108
申请日：1982-12-13
申请人： Nobuo Miwa
发明人： Nobuo Miwa
IPC分类号： B23K9/028 , G21C21/00 , G21C21/02 , B23K9/225
CPC分类号： G21C21/00 , B23K9/028
摘要： A method and system for enclosing a gas at a preselected pressure in a nuclear reactor fuel rod having two ends open to its interior. Hermetically enclose each end in a separate airtight chamber. Introduce the gas into the first chamber and open the second chamber to purge the fuel rod interior and both chambers of residual atmosphere. After purging close the open second chamber and determine the gas pressure in the fuel rod interior. When the pressure reaches the preselected value, hermetically seal each fuel rod end while in its respective chamber. After sealing, remove the fuel rod from the chambers.
摘要翻译：一种用于在预反应的压力下封闭气体的方法和系统，该核反应堆燃料棒的两端开放到其内部。将每一端密封在一个独立的气密室中。将气体引入第一个室并打开第二个室，以清除燃料棒内部和两个室的残留气氛。吹扫关闭开放的第二室并确定燃料棒内部的气体压力。当压力达到预选值时，在其各自的室内气密地密封每个燃料棒端。密封后，将燃料棒从室中取出。

74. 发明授权

US4560462A Apparatus for coating nuclear fuel pellets with a burnable absorber 失效
标题翻译：用可燃吸收剂涂覆核燃料颗粒的设备
公开(公告)号：US4560462A
公开(公告)日：1985-12-24
申请号：US623747
申请日：1984-06-22
申请人： Kenneth C. Radford , Herbert W. Keller , Beryl H. Parks , Robert R. Fuller
发明人： Kenneth C. Radford , Herbert W. Keller , Beryl H. Parks , Robert R. Fuller
IPC分类号： G21C21/02 , C23C14/22 , C23C14/50 , G21C3/62 , C23C14/34
CPC分类号： C23C14/223 , C23C14/22 , C23C14/505 , G21C3/626 , Y02E30/38
摘要： Apparatus for depositing a coating (such as a burnable absorber) on nuclear fuel pellets. Pallets 16 hold a single layer of fuel pellets 22 between lower and upper screened parts 18 and 20. A rotating drum 14 holds the pallets 16 on its circumference. A chamber 12 encloses the drum 14. A sputtering machine 24 has stationary, sputter-frangible, upper and lower targets (such as zirconium diboride) 26 and 28. The stationary upper targets 26 are placed inside the drum's circumference above its longitudinal axis and are pointed facing generally upward and radially outward. The stationary lower targets 28 are placed outside the drum's circumference below its longitudinal axis and are pointed facing generally upward and radially inward. The target material is sputtered onto the fuel pellets 22 as the pallets 16 on the drum 14 rotate past.
摘要翻译：用于在核燃料颗粒上沉积涂层（例如可燃性吸收体）的设备。托盘16在下部和上部筛选部分18和20之间保持单层燃料粒料22.旋转滚筒14将托盘16保持在其圆周上。一个室12围绕滚筒14.一个溅射机24具有固定的，溅射易碎的上，下目标（例如二硼化锆）26和28.固定的上目标26位于滚筒的圆周上方，其纵轴线上方是尖锐的面向大致向上和径向向外。固定的下部目标28被放置在滚筒周围的其纵向轴线的外侧，并且朝向大致向上且径向向内的尖端。当滚筒14上的托盘16旋转过去时，将目标材料溅射到燃料粒料22上。

75. 发明授权

US4500488A Encapsulated fuel unit and method of forming same 失效
标题翻译：封装燃料单元及其形成方法
公开(公告)号：US4500488A
公开(公告)日：1985-02-19
申请号：US415117
申请日：1982-09-07
申请人： Edward F. Groh , Dale A. Cassidy , Edward F. Lewandowski
发明人： Edward F. Groh , Dale A. Cassidy , Edward F. Lewandowski
IPC分类号： G21C3/04 , G21C21/02
CPC分类号： G21C21/02 , G21C3/04 , Y02E30/40 , Y10S376/903
摘要： This invention teaches an encapsulated fuel unit for a nuclear reactor, such as for an enriched uranium fuel plate of thin cross section of the order of 1/64 or 1/8 of an inch and otherwise of rectangular shape 1-2 inches wide and 2-4 inches long. The case is formed from (a) two similar channel-shaped half sections extended lengthwise of the elongated plate and having side edges butted and welded together to define an open ended tube-like structure and from (b) porous end caps welded across the open ends of the tube-like structure. The half sections are preferably of stainless steel between 0.002 and 0.01 of an inch thick, and are beam welded together over and within machined and hardened tool steel chill blocks. The porous end caps preferably are of T-316-L stainless steel having pores of approximately 3-10 microns size.
摘要翻译：本发明教导了用于核反应堆的封装燃料单元，例如1/16英寸或1/8英寸量级的薄横截面的富铀燃料板，另外还有矩形形状为1-2英寸宽和2 -4英寸长。壳体由（a）两个类似的通道形半部分形成，该两个相似的通道状半部分在细长板的纵向上延伸并且具有对接并焊接在一起的侧边缘以限定开口的管状结构，并且从（b）跨越开口焊接的多孔端盖管状结构的端部。半部分优选为0.002和0.01英寸厚之间的不锈钢，并且在加工和硬化的工具钢冷却块之间和内部被束缚在一起。多孔端盖优选为具有约3-10微米尺寸的孔的T-316-L不锈钢。

76. 发明授权

US4468163A Tray loader method and apparatus for nuclear fuel pellets 失效
标题翻译：用于核燃料颗粒的托盘装载机方法和装置
公开(公告)号：US4468163A
公开(公告)日：1984-08-28
申请号：US362046
申请日：1982-03-25
申请人： Harold B. King , Ching C. Lai , Edward S. Walker
发明人： Harold B. King , Ching C. Lai , Edward S. Walker
IPC分类号： G21C21/02 , B65G47/74 , B65G65/00 , G21C21/00 , G21C19/18
CPC分类号： B65G65/00 , B65G47/74 , G21C21/00
摘要： A method and apparatus for loading nuclear fuel pellets in levels onto a horizontally and vertically indexing tray string-by-string. The apparatus includes a belt feeder assembling each string at a location on pivotal blades over the tray. Arrival is optically noted and a pusher delivers the string to a drop site, completely loading the string onto the blades for delivery to the indexing tray.
摘要翻译：一种用于逐级加载水平和垂直分度盘上的核燃料颗粒的方法和装置。该设备包括一个带式进料器，每个串在托盘上的枢转叶片上的一个位置处组装。到达是光学注意的，推杆将琴弦传送到落地部位，将琴弦完全装入刀片上，以传送到分度盘。

77. 发明授权

US4364859A Method for producing oxide powder 失效
标题翻译：氧化物粉末的制造方法
公开(公告)号：US4364859A
公开(公告)日：1982-12-21
申请号：US168144
申请日：1980-07-14
申请人： Katsuyuki Ohtsuka , Jin Ohuchi , Yoshiharu Takahashi
发明人： Katsuyuki Ohtsuka , Jin Ohuchi , Yoshiharu Takahashi
IPC分类号： C01G43/025 , C01G56/00 , G21C3/00 , G21C3/62 , G21C21/00 , G21C21/02 , G21F9/16 , H05B6/80 , G21F9/08
CPC分类号： G21F9/16 , C01G43/025 , C01G56/005 , C01G56/007 , G21C3/623 , H05B6/80 , C01P2006/10 , H05B2206/045 , Y02E30/38
摘要： A method for the heat treatment of a radioactive substance by microwave power comprising preparing a nitrate solution of uranium, thorium, plutonium or a mixture thereof, and applying to the nitrate solution microwave energy sufficient to directly convert the nitrate solution into an oxide powder of uranium, thorium, plutonium or a mixture thereof, respectively. Such oxide powder is suitable for the manufacture of nuclear fuel pellets.
摘要翻译：一种通过微波功率热处理放射性物质的方法，包括制备铀，钍，钚或其混合物的硝酸盐溶液，并向硝酸盐溶液施加足以将硝酸盐溶液直接转化成铀氧化物粉末的微波能量，钍，钚或其混合物。这种氧化物粉末适用于制造核燃料颗粒。

78. 发明授权

US4140738A Process for the production of block fuel elements for high temperature reactors 失效
标题翻译：生产用于高温反应堆的块状燃料元件的方法
公开(公告)号：US4140738A
公开(公告)日：1979-02-20
申请号：US774953
申请日：1977-03-07
申请人： Milan Hrovat , Lothar Rachor
发明人： Milan Hrovat , Lothar Rachor
IPC分类号： C04B35/532 , G21C3/64 , G21C21/02 , G21C21/00
CPC分类号： G21C3/64 , C04B35/532 , G21C21/02 , Y02E30/33 , Y02E30/38
摘要： There is provided a process for the production of block fuel elements for gas cooled high temperature reactors by multiple step molding of a granulated graphite material comprising a mixture of natural graphite powder, synthetic graphite powder and binder resin together with coated fissile and fertile fuel particles using a lubricant and a hydrocarbon, alcohol, phenol, amine, aldehyde, ketone or ether as an air displacing agent whereby the outer form and the cooling gas channels are produced by molding and the molding temperature in the last molding step is above the softening point of the binder resin and wherein the binder resin is so chosen that it has a softening point at least 15.degree. C above the melting point of the lubricant used and the block is ejected from the die in the temperature interval between the melting point of the lubricant and the softening point of the binder resin.
摘要翻译：提供了一种用于气体冷却的高温反应器的块状燃料元件的制造方法，该方法是通过将包含天然石墨粉末，合成石墨粉末和粘合剂树脂的混合物的粉末状石墨材料与涂覆的易裂变和可燃的燃料颗粒润滑剂和烃，醇，酚，胺，醛，酮或醚作为空气移动剂，由此通过模塑制备外部形式和冷却气体通道，并且最后成型步骤中的成型温度高于粘合剂树脂，其中粘合剂树脂被选择为具有高于所用润滑剂的熔点至少15℃的软化点，并且在润滑剂的熔点和粘合剂树脂的软化点。

79. 发明授权

US4097712A Method of joining nuclear fuel rod end caps and nuclear fuel rod cladding tubes 失效
标题翻译：连接核燃料棒端盖和核燃料棒包层管的方法
公开(公告)号：US4097712A
公开(公告)日：1978-06-27
申请号：US739640
申请日：1976-11-08
申请人： Helmut Bezold
发明人： Helmut Bezold
IPC分类号： G21C21/02 , B23K11/02 , B23K11/04 , G21C3/10
CPC分类号： G21C3/10 , B23K11/04 , Y02E30/40
摘要： Method of joining fuel rod end caps and cladding tubes by resistance pressure welding within a welding chamber. A welding device is brought into engagement with an end portion of a rigidly mounted cladding tube. An opening chuck as well as a divided welding electrode, both of which are mounted at one side of the welding chamber, are shifted along a predetermined length of the cladding tube end portion. The chuck and the divided welding electrode are brought into contact with the cladding tube end portion. Another welding electrode carrying and end cap is thrust into the welding chamber from the other side thereof so that the end cap is fed to the open end of the cladding tube end portion. The welding chamber is sealed by sealing members sealingly engaging the cladding tube end portion and the other welding electrode and then the interior of the welding chamber is evacuated and filled with protective gas. The end cap is pressed onto the open end of the cladding tube end portion. A welding current is passed through the welding electrodes so as to weld the end cap to the end of the cladding tube end portion.
摘要翻译：通过焊接室内的电阻压力焊接燃料棒端盖和包层管的方法。焊接装置与刚性安装的包层管的端部接合。两个安装在焊接室一侧的分开的焊接电极沿包层管端部的预定长度移动。卡盘和分割焊接电极与包层管端部接触。另一个焊接电极承载和端盖从另一侧推入焊接室，使得端盖被馈送到包层管端部的开口端。焊接室由与包层管端部和其他焊接电极密封接合的密封部件密封，然后将焊接室的内部抽真空并填充有保护气体。将端盖压到包层管端部的开口端。焊接电流通过焊接电极，以将端盖焊接到包层管端部的端部。

80. 发明授权

US4071587A Method of making ZrH fuel element 失效
标题翻译：制造ZrH燃料元素的方法
公开(公告)号：US4071587A
公开(公告)日：1978-01-31
申请号：US616584
申请日：1975-09-25
申请人： George H. Eggers
发明人： George H. Eggers
IPC分类号： G21C21/02 , G21C21/00
CPC分类号： G21C21/02
摘要： A method of making a nuclear fuel element for a fission reactor. A solid body of an alloy of zirconium and nuclear fuel metal is exposed to hydrogen at an elevated temperature to hydride the zirconium. The hydrided alloy is exposed to oxygen at a lower temperature to form a continuous oxide layer about its exterior surface and is employed in a gastight container as a fuel element. The hydrided alloy may be exposed to oxygen at a temperature of at least about 300.degree. C. prior to its enclosure in the container, or the hydrided alloy may be enclosed in the container together with a quantity of an oxygen-providing material, such as CO.sub.2 or H.sub.2 O, sufficient to oxidize its exterior surface when the fuel element is raised to an elevated temperature.
摘要翻译：制造裂变反应堆核燃料元件的方法。锆和核燃料金属的合金的固体在升高的温度下暴露于氢气以氢化锆。氢化合金在较低温度下暴露于氧气以在其外表面周围形成连续的氧化物层，并且用作气体容器中的燃料元件。氢化合金在其封闭在容器中之前可以在至少约300℃的温度下暴露于氧气，或者将氢化合金与一定数量的供氧材料一起封闭在容器中，例如 CO 2或H 2 O，当燃料元件升高到高温时足以氧化其外表面。

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