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61. 发明授权

US5024559A Punch for use in a pellet press 失效
标题翻译：打孔用于颗粒印刷机
公开(公告)号：US5024559A
公开(公告)日：1991-06-18
申请号：US486231
申请日：1990-02-28
申请人： Peter H. Beuchel
发明人： Peter H. Beuchel
IPC分类号： B29B9/08 , B30B11/02 , C22C29/08 , G21C21/02
CPC分类号： B30B15/065 , B30B11/02 , C22C29/08
摘要： An apparatus for forming a pellet is disclosed that includes at least one punch that is reciprocably movable through an opening in a die for compressing a granular material, such as uranium dioxide, into a pellet such as the fuel pellets used in the fuel assemblies that generate power in nuclear reactors. The punch is advantageously formed from an alloy consisting essentially of tungsten carbide having a grain size of less than one micron which is embedded in a matrix of cobalt which constitutes between 16.5 and 17.5% by weight of the alloy. The alloy is preferably hot isostatically pressed to achieve zero porosity and a density of approximately 14.0 gm/cc.sup.3. Additionally, essentially pure ingredients are preferably used to avoid interfaces in the resulting alloy which could provide situs for chipping. The resulting alloy has a Rockwell scale A hardness of 89.0, and results in a punch which, even when chamfered around its edges, is capable of producing a large number of uranium dioxide fuel pellets without chipping.
摘要翻译：公开了一种用于形成颗粒的装置，其包括至少一个能够可往复运动地通过模具中的开口移动的冲头，用于将颗粒状材料（例如二氧化铀）压缩成颗粒，例如在燃料组件中使用的燃料颗粒，其产生核反应堆的权力。该冲头有利地由基本上由晶粒尺寸小于1微米的碳化钨组成的合金形成，该碳化钨嵌入钴的基体中，该基体构成合金重量的16.5至17.5％。该合金优选是热等静压以实现零孔隙率和约14.0gm / cc 3的密度。此外，基本上纯的成分优选用于避免所得合金中的界面，其可以提供用于碎裂的位置。所得到的合金的洛氏硬度为89.0，硬度达到89.0，即使在其边缘被倒角的情况下，也能够产生大量无捣碎的二氧化铀燃料颗粒。

62. 发明授权

US4980119A Multizone automated nuclear fuel rod loading system 失效
标题翻译：多功能自动化核燃料棒装载系统
公开(公告)号：US4980119A
公开(公告)日：1990-12-25
申请号：US503079
申请日：1990-04-03
申请人： Frederick C. Schoenig, Jr. , David G. Tashjian , Archie C. Lamb , Barry S. Guilliams , George W. Tunnell , Edward W. Meeka
发明人： Frederick C. Schoenig, Jr. , David G. Tashjian , Archie C. Lamb , Barry S. Guilliams , George W. Tunnell , Edward W. Meeka
IPC分类号： G21C21/02
CPC分类号： G21C21/02
摘要： Pellet trays bearing rows of fuel pellets of known enrichment concentrations are retrieved from selected storage elevators and successively conveyed to a zone makeup machine. Parallel rows of pellets are raked from each tray and advanced over a longitudinally elongated, grooved loading surface into abutment with a selectively longitudinally positioned stop. A zone makeup carriage makes up the pellet rows to a prescribed, common zone length, which are then weighted and advanced in parallel by a vibratory loader into a plurality of cladding tubes arranged in parallel loading positions by tube handling apparatus. Overall operation is coordinated by a system controller to concurrently load the cladding tubes with multiple pellet zones of varying enrichments and lengths in automated fashion.
摘要翻译：从选定的存储电梯中取出承载有已知浓缩浓度的燃料颗粒排的颗粒盘，并连续输送到区域化妆机。平行排的颗粒从每个托盘倾斜并在纵向细长的带槽的加载表面上前进到与选择性纵向定位的止挡件邻接。区域化妆架将颗粒行组成规定的公共区段长度，然后将其通过振动装载机平行加权并并行地进入由管式处理装置并排布置的多个包层管。总体操作由系统控制器协调，以自动化方式同时以不同的浓缩和长度的多个颗粒区同时加载包壳管。

63. 发明授权

US4956079A Apparatus for transporting objects 失效
标题翻译：运输物品的设备
公开(公告)号：US4956079A
公开(公告)日：1990-09-11
申请号：US309293
申请日：1989-02-13
申请人： Alan Bailey , David K. Yew
发明人： Alan Bailey , David K. Yew
IPC分类号： G01B21/00 , B23Q7/04 , B23Q7/06 , B65G47/86 , G21C17/06 , G21C21/02
CPC分类号： G21C17/06 , B23Q7/04 , B23Q7/06 , Y10S209/903 , Y10S209/912
摘要： Apparatus for transporting objects in succession through a measuring head. A common drive shaft provides synchronised movement of transfer apparatus, gripper apparatus and indexing apparatus. The transfer apparatus receives objects from a supply and carries the objects to the measuring head. The gripper apparatus receives the objects from the transfer apparatus and carries the objects through the measuring head. The indexing apparatus receives objects from the gripper means and conveys the objects to an outlet.

64. 发明授权

US4880597A Alloy coated fuel cladding 失效
标题翻译：合金涂层燃料包层
公开(公告)号：US4880597A
公开(公告)日：1989-11-14
申请号：US213567
申请日：1988-06-24
申请人： William J. Bryan , Nathan Fuhrman
发明人： William J. Bryan , Nathan Fuhrman
IPC分类号： G21C3/07 , G21C3/18 , G21C3/20 , G21C21/02
CPC分类号： G21C21/02 , G21C3/07 , G21C3/18 , G21C3/20 , G21Y2002/104 , G21Y2004/10 , G21Y2004/20 , Y02E30/40
摘要： A fuel element for a nuclear reactor having a zirconium tin alloy cladding tube, with a thin coating of enriched boron-containing alloy burnable poison, such as nickel-thallium-boron deposited from a reducing agent by an electroless plating process.
摘要翻译：一种用于具有锆锡合金包层管的核反应堆的燃料元件，其具有富集的含硼合金可燃毒物的薄涂层，例如通过化学镀处理从还原剂沉积的镍 - 铊 - 硼。

65. 发明授权

US4824634A Element with burnable poison coating 失效
标题翻译：元素与可燃毒物涂层
公开(公告)号：US4824634A
公开(公告)日：1989-04-25
申请号：US81969
申请日：1987-08-05
申请人： Nathan Fuhrman , Wlliam J. Bryan
发明人： Nathan Fuhrman , Wlliam J. Bryan
IPC分类号： G21C3/18 , G21C21/02 , G21C3/00
CPC分类号： G21C3/18 , G21C21/02 , Y02E30/40
摘要： A fuel element for a nuclear reactor having a zirconium-tin alloy cladding tube, with a thin coating of particles of enriched boron-containing compound burnable poison particles, such as ZrB.sub.2 deposited from a liquid suspension which includes an acrylic polymer binder material and isopropanol. Graphite lubricant particles can be included in the coating.
摘要翻译：一种用于具有锆锡合金包层管的核反应堆的燃料元件，其具有由包含丙烯酸类聚合物粘合剂材料和异丙醇的液体悬浮液沉积的富含含硼化合物可燃毒物颗粒的稀释剂颗粒，例如ZrB 2。石墨润滑剂颗粒可以包含在涂层中。

66. 发明授权

US4822987A Method and apparatus for providing fuel rod identification to permit traceability during manufacture and use 失效
标题翻译：用于提供燃料棒识别以在制造和使用期间允许可追溯性的方法和装置
公开(公告)号：US4822987A
公开(公告)日：1989-04-18
申请号：US148326
申请日：1988-01-25
申请人： Mark P. Goldenfield , David V. Lambert , Hassan J. Ahmed
发明人： Mark P. Goldenfield , David V. Lambert , Hassan J. Ahmed
IPC分类号： G21C3/02 , G06K1/12 , G06K19/06 , G21C17/06 , G21C21/02
CPC分类号： G21C17/06 , G06K1/126
摘要： In a nuclear fuel rod identification system, indicia is provided on a nuclear fuel rod in two stages. In the first stage, by use of a laser beam a bar code is applied directly on the fuel rod cladding tube prior to loading it with nuclear fuel and attaching plugs to opposite ends thereof to provide an assembled fuel rod. In the second stage, after loading nuclear fuel into and attaching end plugs to opposite ends of the fuel rod cladding tube with the applied bar code to provide an assembled fuel rod, by use of a laser beam, identification and enrichment symbologies are applied respectively to the side and end of one of the end plugs of the assembled fuel rod.

67. 发明授权

US4804077A Tube end processing system 失效
标题翻译：管端处理系统
公开(公告)号：US4804077A
公开(公告)日：1989-02-14
申请号：US55561
申请日：1987-05-29
申请人： Clarence D. John, Jr.
发明人： Clarence D. John, Jr.
IPC分类号： B21D19/00 , B23Q7/00 , G21C21/02 , B65G47/00
CPC分类号： B23Q7/003 , G21C21/02
摘要： A system for processing both ends of tubes, such a nuclear fuel rod cladding tubes. A conveyor, adjustable for different length tubing, supports and transversely moves the tubes to tube-end-processing sites. The conveyor is spaced up at the first-tube-end-processing sites to create first access areas. First-tube-end-processing machines have bases with a portion placed underneath the conveyor in these first access areas. The first machines have tube-end-processing modules movably mounted on the bases to accommodate different length tubing. The system also includes second-tube-end-processing machines having tube-end-process modules positioned at the second-tube-end-processing sites. The modules process the tube ends with such operations as deburring, attaching fittings for flush etching the tubes, etc. Preferably, the modules are aligned for the system to process both ends of a tube simultaneously.

68. 发明授权

US4774051A Sintered nuclear fuel compact and method for its production 失效
标题翻译：烧结核燃料紧凑型及其生产方法
公开(公告)号：US4774051A
公开(公告)日：1988-09-27
申请号：US24819
申请日：1987-03-12
申请人： Martin Peehs , Wolfgang Dorr
发明人： Martin Peehs , Wolfgang Dorr
IPC分类号： G21C3/18 , G21C3/62 , G21C21/02
CPC分类号： G21C3/18 , G21C3/623 , G21Y2002/201 , G21Y2004/10 , G21Y2004/40 , Y02E30/38
摘要： A sintered nuclear fuel compact of UO.sub.2 or the mixed oxides (U, Pu)O.sub.2 and (U, Th)O.sub.2, with which reactivity losses in a nuclear reactor having relatively long fuel element cycles are avoided, has in its sintered matrix neutron poison in the chemical compound form UB.sub.x with x=2; 4 and/or 12 and/or B.sub.4 C. A sintered nuclear fuel compact of this kind is produced by sintering from a compact comprising a mixture of at least one of the mixture components UO.sub.2, PuO.sub.2, (U, Pu)O.sub.2 and (U, Th)O.sub.2 powder with UB.sub.x powder, where x=2; 4 and/or 12 and/or B.sub.4 C powder.
摘要翻译： UIO的烧结核燃料压块或避免在具有较长的燃料元件循环的核反应堆中的反应性损失的混合氧化物（U，Pu）O 2和（U，Th）O 2）在其烧结基质中子毒化合物形式为UBx，x = 2; 4和/或12和/或B4C。这种烧结核燃料压块是通过将包含至少一种混合物组分UO2，PuO2，（U，Pu）O2和（U，Th）O 2）粉末与UBx粉末的混合物的烧结制成的，其中x = 2; 4和/或12和/或B4C粉末。

69. 发明授权

US4668444A Process for the production of isotrophic spherical fuel or absorber elements for high temperature reactors 失效
标题翻译：用于生产用于高温反应器的等营养球形燃料或吸收剂元件的方法
公开(公告)号：US4668444A
公开(公告)日：1987-05-26
申请号：US772396
申请日：1985-09-04
申请人： Hans-Joachim Becker , Werner Heit , Hans Huschka , Wilhelm Rind
发明人： Hans-Joachim Becker , Werner Heit , Hans Huschka , Wilhelm Rind
IPC分类号： G21C3/62 , C04B35/532 , G21C21/02 , C09K11/04 , G21C3/02
CPC分类号： C04B35/532 , G21C21/02
摘要： Substantially isotropic spherical fuel and absorber elements for high temperature reactors are produced by molding corresponding fuel particles and graphite molding compositions. There is used as graphite molding powder a mixture of graphitized granules of coke and a hardenable resin binder. There are first produced in steel dies at 80.degree. to 120.degree. C. half shells and a nucleus with a pressed density of 1.0 to 1.4 g/cm.sup.3 followed by molding in a further steel die to the final format.
摘要翻译：用于高温反应器的基本上各向同性的球形燃料和吸收元件通过模制相应的燃料颗粒和石墨模制组合物来制备。用作石墨成型粉末的是石墨化的焦炭颗粒和可硬化树脂粘合剂的混合物。首先在80〜120℃的钢模上制造半壳和压制密度为1.0〜1.4g / cm 3的核，然后在另外的钢模中成型为最终形式。

70. 发明授权

US4642016A Apparatus for unloading nuclear fuel pellets from a sintering boat 失效
标题翻译：用于从烧结船卸载核燃料颗粒的装置
公开(公告)号：US4642016A
公开(公告)日：1987-02-10
申请号：US637371
申请日：1984-08-03
申请人： George D. Bucher , Theodore E. Raymond
发明人： George D. Bucher , Theodore E. Raymond
IPC分类号： B65G47/88 , B65B69/00 , B65G47/90 , B65G47/96 , B65G65/23 , G21C21/00 , G21C21/02 , B65G65/34
CPC分类号： B65G65/23
摘要： A nuclear fuel pellet unloading apparatus includes a boat clamping and inverting mechanism which receives a boat loaded with pellets, clamps the boat and pivots it along an arcuate path adjacent a pellet transfer shroud from an initial upright position to a generally inverted position and then back to the upright position. As the loaded boat is pivoted, it progressively inverts next to an arcuate wall portion of the shroud which coacts to contain individual pellets as they begin to empty from the boat. The emptied pellets flow down the shroud to the next station. By the time the boat reaches its inverted position all of the pellets have emptied from the boat. The unloading apparatus also includes a pair of pneumatic cylinders which are selectively actuated for respectively delivering a loaded boat from a boat conveyor to the inverting mechanism and ejecting an empty boat from the inverting mechanism back to the boat conveyor.
摘要翻译：一种核燃料颗粒卸载装置包括一个接纳装载有颗粒的船的船夹合和翻转机构，夹紧船，并将其沿着与颗粒传送罩相邻的弧形路径从初始直立位置枢转到大致倒置的位置，然后返回直立的位置。当装载的船被枢转时，它逐渐反转在护罩的弧形壁部分旁边，当它们从船上开始排空时，它们共同构成以容纳单个的颗粒。排空的颗粒沿着护罩流到下一站。当船到达倒立位置时，所有的小球从船上倒空。卸载装置还包括一对气动缸，其被选择性地致动以分别将负载的船从船运输机运送到翻转机构，并将空船从翻转机构返回到船运输机。

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