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31. 发明公开

EP1756837A1 NUCLEAR FUEL 有权
标题翻译：核燃料
公开(公告)号：EP1756837A1
公开(公告)日：2007-02-28
申请号：EP05708881.7
申请日：2005-03-01
申请人： Pebble Bed Modular Reactor (Proprietary) Limited
发明人： KUCZYNSKI, Leszek, Andrzej
IPC分类号： G21C3/58 , G21C3/62
CPC分类号： G21C3/07 , G21C3/58 , G21C3/62 , G21C3/623 , G21C3/626 , G21C21/02 , G21Y2002/104 , G21Y2002/206 , G21Y2002/303 , G21Y2004/30 , G21Y2004/303 , G21Y2004/40 , Y02E30/38
摘要： This invention relates to a method of preparing nuclear fuel including the step of depositing at least two adjacent series of layers (16, 18) around a kernel (12) of fissile material, each series comprising a layer of pyrolytic carbon (16) contiguous with a layer of silicon carbide (18) and each layer (16, 18) having a thickness of at most (10) micrometres, such that alternate layers of (16, 18) of pyrolytic carbon and silicon carbide are deposited around the kernel (12). The invention extends to a nuclear fuel element (10).
摘要翻译：本发明涉及一种制备核燃料的方法，该方法包括围绕易裂变材料的内核（12）沉积至少两个相邻的一系列层（16,18）的步骤，每个系列包括一层热解碳（16）碳化硅层（18）和每个层（16,18）的厚度至多为（10）微米，使得（16,18）热解碳和碳化硅的交替层沉积在核（12）周围）。本发明延伸至核燃料元件（10）。

32. 发明公开

EP1661144A1 SEALING DEVICE FOR THE OUTER SURFACE OF A NUCLEAR FUEL CLADDING 审中-公开
标题翻译：密封装置，用于核燃料外套的外表面
公开(公告)号：EP1661144A1
公开(公告)日：2006-05-31
申请号：EP03818066.7
申请日：2003-08-13
申请人： Belgonucleaire SA
发明人： AERTS, Louis , VANDERGHEYNST, Alain , HEYLEN, Jean
IPC分类号： G21C21/02
CPC分类号： G21C21/02 , G21Y2002/303 , G21Y2002/304 , G21Y2004/301
摘要： Sealing device (10) between two media and the outer surface of a fuel cladding (1), characterized by three states: a state retracted for contactless axial insertion of said fuel cladding (1) though the sealing device, a state statically hermetically sealed around said fuel cladding maintained at rest, and a state dynamically hermetically sealed around said fuel cladding under axial and/or rotational movement.

33. 发明公开

EP1264661A1 Procédé et dispositif de rectification d'objets cylindriques, notamment de pastilles de combustible nucléaire 有权
标题翻译：磨削圆柱形物品，特别是核燃料芯块的方法和装置
公开(公告)号：EP1264661A1
公开(公告)日：2002-12-11
申请号：EP02291356.0
申请日：2002-06-04
申请人： COMPAGNIE GENERALE DES MATIERES NUCLEAIRES
发明人： Engelvin, Pascal , Marchand, Michel , Masson, Serge
IPC分类号： B24B5/22 , B24B55/06 , G21C21/02
CPC分类号： B24B5/22 , B24B55/06 , G21C21/02
摘要： La présente invention a pour objet un procédé et un dispositif de rectification d'objets cylindriques (30), notamment de pastilles de combustible nucléaire. Dans le cadre dudit procédé, de façon caractéristique, les poussières générées à la rectification, par action d'une meule de travail (10) sur lesdites pastilles (30), restent confinées et sont quasi toutes entraînées côté de ladite meule de travail (10) pour y être prélevées par une aspiration forcée.
摘要翻译：本发明涉及一种用于整流筒状物品，特别是核燃料芯块的方法和装置。在所述方法中，在特征的方式，通过作用在所述粒料工作碾轮式整流产生的粉尘仍然局限于和几乎所有的它被夹带旁所述工作碾轮式以便带走通过强制抽吸。

34. 发明公开

EP1005696A1 PROCESS FOR FABRICATING A NUCLEAR FUEL ROD CLADDING 失效
标题翻译：制造核燃料棒包层的方法
公开(公告)号：EP1005696A1
公开(公告)日：2000-06-07
申请号：EP97917863.9
申请日：1997-04-03
申请人： CRS HOLDINGS, INC.
发明人： NORDSTROM, Neal, C.
IPC分类号： G21C21/02 , G21C3/07 , B22D23/00
CPC分类号： B22D23/003 , G21C3/07 , G21C21/02 , G21Y2002/202 , G21Y2002/302 , G21Y2004/20 , G21Y2004/40 , Y02E30/40
摘要： A process for making a cladding for a nuclear fuel rod is disclosed which includes the following steps. First, at least two layers of zirconium-based metals are spray-deposited on a generally cylindrical substrate in a manner that provides a rough, cylindrically-shaped, porous billet. The zirconium-based metal for each layer is different from an adjacent layer and is selected to provide a desired combination of properties. Next, the substrate is removed from the spray-deposited material, thereby providing an elongated tube hollow. The spray-deposited material is then consolidated in a known manner to remove the porosity, densify the tube hollow to substantially full density, and reduce the cross-sectional dimension of the tube hollow to a desired size. In a further step the consolidated tube hollow is annealed under conditions of time and temperature selected to relieve stresses imposed on the tube hollow during the consolidation step and to provide a desired combination of properties in the densified zirconium-based metal layers.
摘要翻译：公开了一种制造用于核燃料棒的包壳的方法，其包括以下步骤。首先，以提供粗糙的圆柱形多孔坯料的方式将至少两层锆基金属喷涂沉积在大致圆柱形的基底上。用于每层的锆基金属不同于相邻层并且被选择以提供期望的性质组合。接下来，从喷雾沉积的材料中移除衬底，由此提供细长管空心。然后以已知方式固结喷雾沉积材料以除去孔隙率，使管空心致密化至基本上全密度，并将管空心的横截面尺寸减小至所需尺寸。在进一步的步骤中，在选定的时间和温度的条件下对固结的管空心进行退火，以减轻在固结步骤期间施加在管空心上的应力，并在致密的锆基金属层中提供期望的性能组合。

35. 发明公开

EP1002321A1 TUBE LOADING APPARATUS 失效
标题翻译：燃料棒充电设备
公开(公告)号：EP1002321A1
公开(公告)日：2000-05-24
申请号：EP98930922.4
申请日：1998-06-22
申请人： British Nuclear Fuels PLC
发明人： HUNTER, David, Clifford-British Nuclear Fuels plc
IPC分类号： G21C21/02
CPC分类号： G21C21/02
摘要： An apparatus for successively loading solid objects (19) into a tube (27), for instance, nuclear fuel pellets into a nuclear fuel tube, includes means (17) for feeding the objects towards one, open end (29) of the tube. A reduced pressure is induced between each solid object and the tube end prior to entry of the object into the tube.

36. 发明公开

EP0961293A4 CONTINUOUS SINTERING PLANT INTEGRATED WITH GLOVE BOX FOR MAINTENANCE USE 有权
标题翻译：具有集成手套箱连续烧结厂进行维修
公开(公告)号：EP0961293A4
公开(公告)日：2000-05-24
申请号：EP98943066
申请日：1998-09-21
申请人： JAPAN NUCLEAR CYCLE
发明人： KAWASAKI TAKAO , AONO SHIGENORI , KATO MITSUAKI
IPC分类号： F27B3/16 , G21C21/02 , G21F7/04
CPC分类号： G21C21/02 , G21F7/04 , G21Y2002/401 , G21Y2002/402 , G21Y2004/303 , G21Y2004/503
摘要： A continuous sintering apparatus to be used for sintering nuclear fuel pellets. A casing of a continuous sintering furnace is integrally constructed to have an upper portion enclosed in a maintenance glove box. The furnace casing includes a casing body and a ceiling cover removably mounted on the casing body, and the ceiling cover can be opened in the glove box while retaining the containment. A furnace member to be accommodated in the casing body comprises a combination of a plurality of divided furnace member units, and the furnace member units can be maintained by glove operations when they are delivered out from the inside of the casing body into the glove box. A ceiling crane is disposed at an upper portion of the inside of the glove box, and a ceiling cover tentative space and a maintenance working space are provided in the glove box. A turntable for placing the delivered furnace member unit is preferably disposed in the maintenance working space.

37. 发明公开

EP0795876A2 Apparatus and methods for sealing end plugs for nuclear fuel rods 失效
标题翻译：装置和方法，用于密封核燃料棒端插件
公开(公告)号：EP0795876A2
公开(公告)日：1997-09-17
申请号：EP97301259.4
申请日：1997-02-26
申请人： GENERAL ELECTRIC COMPANY
发明人： Harmon, John Lee , Haughton, Robert Alan , Peters, William Carter , Lingenfelter, Andrew Allen
IPC分类号： G11C21/02 , G21C3/10
CPC分类号： G21C21/02 , G21C3/10 , Y02E30/40
摘要： End plugs (20) for nuclear fuel rods are provided with a spot weld (22) 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.

38. 发明公开

EP0674800A1 MANUFACTURE OF ZIRCONIUM CLADDING TUBE WITH INTERNAL LINER 失效
标题翻译：与室内涂料产生ZIRKONIUMHÜLLROHRES。
公开(公告)号：EP0674800A1
公开(公告)日：1995-10-04
申请号：EP94903202.0
申请日：1993-12-15
申请人： ABB ATOM AB
发明人： DAHLBÄCK, Mats
IPC分类号： G21C3 , C21D9 , C22F1 , G21C21
CPC分类号： G21C21/02 , C22F1/186 , G21C3/20 , G21Y2002/103 , G21Y2004/201 , Y02E30/40
摘要： A method of manufacturing nuclear fuel elements comprising fuel rods whose cladding tubes are provided with an internal liner layer to obtain PCI resistance in the nuclear fuel element comprises carefully choosing parameters for heat treatment of the inner component even from the machining of an ingot of the inner component. The internal layer of zirconium or a zirconium alloy suitable as inner layer in a PCI-resistant cladding is manufactured, from the fabrication of an ingot of the inner component up to the completion of a cladding tube, comprising forging, rolling, extrusion, heat treatment and final heat treatment, in such a way that the temperature in the inner component never exceeds the temperature when an incipient phase transformation to beta phase takes place.

39. 发明授权

EP0528197B1 Verfahren und Vorrichtung zur Inspektion von Tabletten 失效
标题翻译：用于检查片剂的方法和装置。
公开(公告)号：EP0528197B1
公开(公告)日：1995-07-19
申请号：EP92112522.5
申请日：1992-07-22
申请人： ADVANCED NUCLEAR FUELS GmbH
发明人： Osseforth, Ewald
IPC分类号： G01B11/00 , G21C21/02 , B65G15/10 , B65G47/31
CPC分类号： B65G47/31 , B65G15/105 , G01B11/00 , G01N21/9508 , G21C21/02

40. 发明授权

EP0334069B1 Nuclear fuel pellet column collating system 失效
标题翻译：系统，用于核燃料芯块的列的组合物。
公开(公告)号：EP0334069B1
公开(公告)日：1994-09-14
申请号：EP89103633.7
申请日：1989-03-02
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Rieben, Stuart Louis , Kugler, Ralph William , Scherpenberg, Joseph John , Wiersema, Dale Thomas
IPC分类号： G21C21/02
CPC分类号： G21C21/02 , Y10T29/53048

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