公开(公告)号：US20050220260A1

公开(公告)日：2005-10-06

申请号：US11041305

申请日：2005-01-25

Applicant: Kazuki Monaka ,  Juntaro Shimizu ,  Yoichiro Yamaguchi

Inventor： Kazuki Monaka ,  Juntaro Shimizu ,  Yoichiro Yamaguchi

IPC: G21C21/00 ,  G21C3/07 ,  G21C3/12 ,  G21C3/33 ,  G21C15/00

CPC classification number: G21C3/07 ,  G21C3/12 ,  G21Y2002/103 ,  G21Y2004/201 ,  G21Y2004/202 ,  Y02E30/40 ,  Y10S148/908 ,  Y10S376/90

Abstract: A method of surface-treating a reactor member for effectively removing a Cr-deficient layer and a work-hardened layer considered to be a cause of stress corrosion cracking (SCC) under low-stress conditions. The method of surface-treating a reactor member which is worked by bending (step 1) and then processed by a heat treatment (step 2), in which a work-hardened layer is formed by the bending, and in which a Cr-deficient layer is formed due to an oxide film attached by the heat treatment, uses at least one of: acid wash; grinding; electrolytic polishing; electro-discharge machining; surface cutting; surface deoxidation and softening; wet blasting; laser machining; or surface plating (step 3) to remove the work-hardened layer and the Cr-deficient layer from the reactor member or to prevent contact of the work-hardened layer and the Cr-deficient layer of the reactor member with a primary coolant.

Abstract translation: 在低应力条件下，有效地除去被认为是应力腐蚀开裂原因（SCC）的Cr缺陷层和加固硬化层的反应器构件的表面处理方法。 表面处理通过弯曲（步骤1）进行加工，然后通过热处理（步骤2）进行加工的反应器构件的表面处理方法，其中通过弯曲形成加工硬化层，并且其中Cr缺陷 由于通过热处理而附着的氧化膜形成层，使用以下中的至少一种：酸洗; 研磨 电解抛光; 放电加工; 表面切割; 表面脱氧和软化; 湿喷 激光加工; 或表面电镀（步骤3）以从反应器构件去除加固硬化层和Cr缺陷层，或者防止加固硬化层和反应器构件的Cr缺陷层与初级冷却剂接触。

公开(公告)号：US06909766B2

公开(公告)日：2005-06-21

申请号：US10287505

申请日：2002-11-05

Applicant: Toshiya Kido ,  Kimio Nakayama ,  Yasunao Yamaguchi

Inventor： Toshiya Kido ,  Kimio Nakayama ,  Yasunao Yamaguchi

IPC: G21C3/34 ,  C21D1/26 ,  C22F1/00 ,  C22F1/18 ,  G21C3/32 ,  G21C21/00

CPC classification number: G21C21/00 ,  G21C3/3206 ,  G21Y2002/103 ,  G21Y2002/206 ,  G21Y2002/303 ,  G21Y2004/201 ,  G21Y2004/40 ,  Y02E30/40

Abstract: One object of the present invention is to provide a production method for a nuclear fuel assembly support grid that improves the corrosion resistance of welded parts without impairing the characteristics of the support grid so as to be able adequately withstand highly efficient operation. In order to achieve the object, the present invention provide a production method for a nuclear fuel assembly support grid comprising the steps of: assembling a plurality of straps in a grid form; welding intersections of each strap; and carrying out annealing thereafter to precipitate an intermetallic compound on the welded parts.

Abstract translation: 本发明的一个目的是提供一种用于提高焊接部件的耐腐蚀性的核燃料组件支撑格栅的制造方法，而不会损害支撑格栅的特性，从而能够充分地承受高效率的操作。 为了实现该目的，本发明提供了一种用于核燃料组件支撑格栅的制造方法，包括以下步骤：以网格形式组装多个带; 每个胶带的焊接交叉点; 然后进行退火以在焊接部分上沉淀金属间化合物。

公开(公告)号：US5876524A

公开(公告)日：1999-03-02

申请号：US765590

申请日：1997-04-17

Applicant: Thomas Andersson

Inventor： Thomas Andersson

IPC: G21C3/06 ,  C22C16/00 ,  C22F1/00 ,  C22F1/18 ,  G21C3/07

CPC classification number: G21C3/07 ,  C22F1/186 ,  G21Y2002/103 ,  G21Y2002/206 ,  G21Y2004/201 ,  Y02E30/40

Abstract: The present invention relates to a method of manufacturing tubes of zirconium based alloys for usage in nuclear reactors. According to the invention one can achieve good resistance towards general corrosion, improved transversal creep strength and reduced irradiation induced growth by subjecting a .beta.-quenched tube a vacuum anneal in the .alpha.-phase range at a temperature and a time sufficient to obtain an annealing parameter value A in the range 3.4 .times.10.sup.-16 to 3.4 .times.10.sup.-13.

Abstract translation: PCT No.PCT / SE95 / 00749 Sec。 371日期1997年04月17日 102（e）日期1997年4月17日PCT提交1995年6月20日PCT公布。 出版物WO95 / 35395 日期：1995年12月28日本发明涉及一种用于核反应堆的锆基合金管的制造方法。 根据本发明，可以在足以获得退火参数的温度和时间下对β淬灭的管进行α相范围内的真空退火，从而获得对一般腐蚀，改进的横向蠕变强度和减小的辐射诱导生长的良好抵抗力 值A在3.4 x 10-16到3.4 x 10-13之间。

公开(公告)号：US5802130A

公开(公告)日：1998-09-01

申请号：US880440

申请日：1997-06-27

Applicant: Jean-Paul Mardon ,  Jean Sevenat ,  Daniel Charquet

Inventor： Jean-Paul Mardon ,  Jean Sevenat ,  Daniel Charquet

IPC: G21C3/06 ,  C22C16/00 ,  C22F1/00 ,  C22F1/18 ,  G21C3/07

CPC classification number: G21C3/07 ,  G21Y2002/103 ,  G21Y2004/10 ,  G21Y2004/201 ,  Y02E30/40

Abstract: A tube for constituting all or part of a cladding or guide tube for a fuel assembly is made from an alloy containing, by weight, 0.4% to 0.6% of tin, 0.5% to 0.8% of iron, 0.35% to 0.50% of vanadium, and 0.10% to 0.18% of oxygen, 100 ppm to 180 ppm of carbon and 50 ppm to 120 ppm of silicon. The alloy contains nothing else apart from zirconium and unavoidable impurities and it is completely recrystallized.

Abstract translation: 用于构成用于燃料组件的包层或导管的全部或一部分的管由含有重量比为0.4％至0.6％的锡，0.5％至0.8％的铁，0.35％至0.50％的钒的合金制成 ，0.10〜0.18％的氧，100〜180ppm的碳，50〜120ppm的硅。 该合金除了锆和不可避免的杂质外不含其它物质，并且完全重结晶。

公开(公告)号：US5702544A

公开(公告)日：1997-12-30

申请号：US593869

申请日：1996-01-30

Applicant: Jean-Paul Mardon ,  Jean Sevenat ,  Daniel Charquet

Inventor： Jean-Paul Mardon ,  Jean Sevenat ,  Daniel Charquet

IPC: G21C3/06 ,  C22C16/00 ,  C22F1/00 ,  C22F1/18 ,  G21C3/07

CPC classification number: G21C3/07 ,  G21Y2002/103 ,  G21Y2004/10 ,  G21Y2004/201 ,  Y02E30/40

Abstract: A tube for constituting all or part of a cladding or guide tube for a fuel assembly is made from an alloy containing, by weight, 1.4% to 0.6% of tin, 0.5% to 0.8% of iron, 0.35% to 0.50% of vanadium, and 0.10% to 0.18% of oxygen, 100 ppm to 180 ppm of carbon and 50 ppm to 120 ppm of silicon. The alloy contains nothing else apart from zirconium and unavoidable impurities and it is completely recrystallized.

Abstract translation: 用于构成用于燃料组件的包层或导管的全部或一部分的管由包含以重量计含有1.4％至0.6％的锡，0.5％至0.8％的铁，0.35％至0.50％的钒的合金制成 ，0.10〜0.18％的氧，100〜180ppm的碳，50〜120ppm的硅。 该合金除了锆和不可避免的杂质外不含其它物质，并且完全重结晶。

公开(公告)号：US5681404A

公开(公告)日：1997-10-28

申请号：US385807

申请日：1995-02-09

Applicant: Ronald Bert Adamson ,  Gerald Allen Potts

Inventor： Ronald Bert Adamson ,  Gerald Allen Potts

IPC: G21C3/06 ,  C22F1/00 ,  C22F1/18 ,  G21C3/07

CPC classification number: G21C3/07 ,  C22F1/186 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/20 ,  G21Y2002/201 ,  G21Y2004/20 ,  G21Y2004/201 ,  Y02E30/40 ,  Y10S376/90

Abstract: In a zirconium-alloy fuel element cladding, a method for generating regions of coarse and fine intermetallic precipitates across the cladding wall is provided. The method includes steps of specific heat treatments and anneals that coarsen precipitates in the bulk of the cladding. The method also includes at least one step in which an outer region (exterior) of the cladding is heated to the beta or alpha plus beta phase, while an inner region (interior) is maintained at a temperature at which little or no metallurgical change occurs. This method produces a composite cladding in which the outer region comprises fine precipitates and the inner region comprises coarse precipitates.

Abstract translation: 在锆合金燃料元件包层中，提供了跨越包覆壁产生粗细和金属间析出物的区域的方法。 该方法包括在大部分包层中粗化析出物的特定热处理和退火步骤。 该方法还包括至少一个步骤，其中包层的外部区域（外部）被加热到β或α+β相，而内部区域（内部）保持在很少或不发生冶金变化的温度 。 该方法产生复合包层，其中外部区域包含微细的沉淀物，并且内部区域包括粗大的沉淀物。

公开(公告)号：US5677937A

公开(公告)日：1997-10-14

申请号：US762952

申请日：1996-12-10

Applicant: Gunnar Vesterlund ,  Mats Dahlback

Inventor： Gunnar Vesterlund ,  Mats Dahlback

IPC: G21C3/326 ,  C22C16/00 ,  C22F1/18 ,  G21C3/06 ,  G21C21/00 ,  G21D1/00

CPC classification number: C22F1/186 ,  G21C21/00 ,  G21C3/06 ,  G21Y2002/103 ,  G21Y2004/201 ,  Y02E30/40

Abstract: The invention relates to a fuel element for a pressurized-water reactor comprising a number of fuel rods arranged in a square lattice and wherein certain positions in the lattice contain guide tubes for receiving control rods, wherein the fuel element can be used for higher burnup by manufacturing the guide tubes of the element such that their irradiation-induced growth is reduced and their corrosion resistance is increased compared with conventionally manufactured guide tubes. This is achieved by finally heat-treating the guide tubes in two steps, the first step being a beta quenching and the second step a heat treatment in the alpha-phase region.

Abstract translation: 本发明涉及一种用于加压水反应器的燃料元件，其包括以正方形格子布置的多个燃料棒，并且其中格子中的某些位置包含用于接收控制棒的引导管，其中该燃料元件可用于较高的燃耗 制造元件的引导管，使得它们的照射诱导的生长减少，并且与常规制造的导管相比它们的耐腐蚀性增加。 这通过以两个步骤最后热处理导管来实现，第一步是β淬灭，第二步是在α相区域中进行热处理。

公开(公告)号：US5527471A

公开(公告)日：1996-06-18

申请号：US382674

申请日：1995-02-02

Applicant: Glenn T. Hong ,  Vladimir A. Zilberstein

Inventor： Glenn T. Hong ,  Vladimir A. Zilberstein

IPC: B01J3/00 ,  B01J3/04 ,  B01J19/00 ,  B01J19/02 ,  C02F11/08 ,  G21C3/07

CPC classification number: G21C3/07 ,  B01J19/02 ,  B01J3/008 ,  B01J3/04 ,  C02F11/08 ,  C02F11/086 ,  B01J2219/0236 ,  G21Y2002/103 ,  G21Y2004/201 ,  Y02E30/40

Abstract: A process for hydrothermal oxidation of combustible materials in which, during at least a part of the oxidation, corrosive material is present and makes contact with at least a portion of the apparatus over a contact area on the apparatus. At least a portion of the contact surface area comprises iridium, iridium oxide, an iridium alloy, or a base metal overlaid with an iridium coating. Iridium has been found to be highly resistant to environments encountered in the process of hydrothermal oxidation. Such environments typically contain greater than 50 mole percent water, together with oxygen, carbon dioxide, and a wide range of acids, bases and salts. Pressures are typically about 27.5 to about 1000 bar while temperatures range as high as 800.degree. C.

Abstract translation: 一种用于可燃材料的水热氧化的方法，其中在至少一部分氧化期间存在腐蚀性材料并且在设备的接触区域上与装置的至少一部分接触。 接触表面积的至少一部分包括铱，氧化铱，铱合金或覆盖有铱涂层的贱金属。 铱已被发现对水热氧化过程中遇到的环境具有高度的抗性。 这样的环境通常含有大于50摩尔％的水，以及氧气，二氧化碳和各种酸，碱和盐。 压力通常为约27.5至约1000巴，而温度范围高达800℃。

公开(公告)号：US5519748A

公开(公告)日：1996-05-21

申请号：US52793

申请日：1993-04-23

Applicant: Ronald B. Adamson ,  Gerald A. Potts

Inventor： Ronald B. Adamson ,  Gerald A. Potts

IPC: G21C3/06 ,  C22C16/00 ,  C22F1/00 ,  C22F1/18 ,  G21C3/07

CPC classification number: C22F1/186 ,  G21C3/07 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/20 ,  G21Y2002/201 ,  G21Y2004/201 ,  G21Y2004/30 ,  G21Y2004/303 ,  Y02E30/40 ,  Y10S376/90 ,  Y10T428/12028

Abstract: A Zircaloy cladding having an outer region comprising fine precipitates and inner region comprising coarse precipitates is provided. The outer region comprises about 10% and the inner region comprises about 90% of the cladding wall thickness. Such Zircaloy tubing is resistant to propagation of cracks and at the same time resistant to corrosion in boiling water reactors (BWR). Resistance to damage caused by the pellet-cladding-interaction can be achieved by standard application of a zirconium or zirconium-alloy liner on the tubing inside surface.

Abstract translation: 提供了具有包含细小析出物的外部区域和包含粗大析出物的内部区域的锆石覆层。 外部区域包括约10％，并且内部区域包括约90％的包层壁厚度。 这种Zircaloy管道对裂缝的传播具有抗性，同时耐沸水反应堆（BWR）中的腐蚀。 通过在管道内表面上标准施用锆或锆合金衬垫可以实现由颗粒包层相互作用引起的损伤的抵抗力。

公开(公告)号：US5437747A

公开(公告)日：1995-08-01

申请号：US52791

申请日：1993-04-23

Applicant: Ronald B. Adamson ,  Gerald A. Potts

Inventor： Ronald B. Adamson ,  Gerald A. Potts

IPC: G21C3/06 ,  C22F1/00 ,  C22F1/18 ,  G21C3/07

CPC classification number: G21C3/07 ,  C22F1/186 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/20 ,  G21Y2002/201 ,  G21Y2004/20 ,  G21Y2004/201 ,  Y02E30/40 ,  Y10S376/90

Abstract: In a zirconium-alloy fuel element cladding, a method for generating regions of coarse and fine intermetallic precipitates across the cladding wall is provided. The method includes steps of specific heat treatments and anneals that coarsen precipitates in the bulk of the cladding. The method also includes at least one step in which an outer region (exterior) of the cladding is heated to the beta or alpha plus beta phase, while an inner region (interior) is maintained at a temperature at which little or no metallurgical change occurs. This method produces a composite cladding in which the outer region comprises fine precipitates and the inner region comprises coarse precipitates.

Abstract translation: 在锆合金燃料元件包层中，提供了跨越包覆壁产生粗细和金属间析出物的区域的方法。 该方法包括在大部分包层中粗化析出物的特定热处理和退火步骤。 该方法还包括至少一个步骤，其中包层的外部区域（外部）被加热到β或α+β相，而内部区域（内部）保持在很少或不发生冶金变化的温度 。 该方法产生复合包层，其中外部区域包含微细的沉淀物，并且内部区域包括粗大的沉淀物。