公开(公告)号：US20030053582A1

公开(公告)日：2003-03-20

申请号：US10285421

申请日：2002-11-01

Applicant: HITACHI, LTD.

Inventor： Michio Nakayama ,  Takehiro Seto ,  Tatsuo Seki ,  Isao Kurihara

IPC: G21C003/00

CPC classification number: G21C3/324 ,  G21C21/00 ,  G21Y2004/201 ,  Y02E30/40

Abstract: A fuel channel box manufacturing method processes a fuel channel box of a zirconium-base alloy by a beta-quench treatment that heats the fuel channel box by a heating coil. The distance between the heating coil and the opposite walls of the fuel channel box is controlled so that temperature differences between the opposite walls of the fuel channel box are reduced. The fuel channel box of a zirconium-base alloy is heated at a temperature in a temperature range including null-phase temperatures so that temperature difference between the opposite walls is 50null C. or below. The fuel channel box manufacturing method is capable of manufacturing a fuel channel box that is not subject to significant irradiated bow even if a deflection is produced therein originally when the same is manufactured and of manufacturing the fuel channel box at a high production efficiency.

Abstract translation: 燃料通道箱制造方法通过加热线圈对燃料通道箱加热的β-淬火处理来处理锆基合金的燃料通道箱。 控制加热线圈与燃料通道箱的相对壁之间的距离，使得燃料通道箱的相对壁之间的温度差减小。 锆基合金的燃料通道箱在包括β相温度的温度范围内被加热，使得相对壁之间的温度差为50℃或更低。 燃料通道箱的制造方法能够制造即使在其制造时原来产生偏转并且以高生产效率制造燃料通道箱时，也不会受到显着的照射弓的燃料通道箱的影响。

公开(公告)号：US06149738A

公开(公告)日：2000-11-21

申请号：US101281

申请日：1998-04-13

Applicant: Mats Dahlback

Inventor： Mats Dahlback

IPC: C22C16/00 ,  C22F1/00 ,  C22F1/18 ,  G21C3/30 ,  G21C3/324 ,  G21C21/00

CPC classification number: G21C3/324 ,  G21Y2002/104 ,  G21Y2004/201 ,  Y02E30/40

Abstract: A fuel box for a nuclear fuel bundle for a boiling water reactor is manufactured by zirconium alloy plates. The plates have a composition such that the material after beta quenching and heat treatment will have a ductile, so called basketweave structure.

Abstract translation: PCT No.PCT / SE97 / 00667 Sec。 371日期：1998年4月13日 102（e）日期1998年4月13日PCT 1997年4月21日PCT PCT。 公开号WO97 / 40659 日期：1997年11月6日用于沸水反应堆的核燃料束的燃料箱由锆合金板制造。 板的组成使得β淬火和热处理后的材料将具有延性，所谓的网架结构。

公开(公告)号：US5618356A

公开(公告)日：1997-04-08

申请号：US489597

申请日：1995-06-12

Applicant: Ronald B. Adamson ,  Gerald A. Potts

Inventor： Ronald B. Adamson ,  Gerald A. Potts

IPC: C22F1/18 ,  G21C3/07

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

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：US5331676A

公开(公告)日：1994-07-19

申请号：US162246

申请日：1993-12-06

Applicant: David V. Lambert ,  Mark P. Goldenfield

Inventor： David V. Lambert ,  Mark P. Goldenfield

IPC: G21C3/07 ,  G21C21/02 ,  H05B6/22 ,  G21C19/00

CPC classification number: H05B6/22 ,  G21C21/02 ,  G21C3/07 ,  G21Y2002/104 ,  G21Y2002/204 ,  G21Y2004/201

Abstract: Nuclear fuel rod tubes of zirconium alloy are heat treated in an induction furnace to produce a protective oxide coating two to fifteen microns in thickness. The furnace is only slightly larger than the tubes and receives the endmost eight inches of the tube. The furnace is controllable in zones along the tube. To calibrate the furnace to produce the desired temperature profile, typically a flat profile at a temperature between 650.degree. and 750.degree. C..+-.1.5.degree. C., a temperature calibration probe is provided with spaced thermocouples for sensing the temperature developed in the probe at each of the zones when heated. The probe is made of inconel 600 stainless or the like, and is dimensioned and shaped to correspond closely to the dimensions of the fuel rod tubes, including having a closed chamfered end. At the opposite end the probe protrudes from the furnace, where the thermocouple leads are terminated. The leads pass through a potting compound in the probe, such as magnesium oxide. Whereas the probe conductive structures are substantially identical to the tube, the probe responds to the electromagnetic field in the induction furnace substantially the same as does the end of the tube, permitting calibration of the induction furnace zones for a desired temperature profile, e.g., flat along the length of the tube, notwithstanding differences in induced currents that would otherwise occur due to the end of the tube or the adjacent tube material.

Abstract translation: 在感应炉中对锆合金的核燃料棒管进行热处理，以产生厚度为2至15微米的保护性氧化物涂层。 炉子只是稍大于管子，并且接收到最后8英寸的管子。 炉子沿着管子的区域是可控的。 为了校准炉子以产生所需的温度分布，通常在650至750℃±1.5℃的温度下具有平坦的轮廓，温度校准探针设置有间隔的热电偶，用于感测在 在加热时在每个区域进行探头。 探头由不锈钢等不锈钢制成，尺寸和形状与燃料棒管的尺寸密切对应，包括具有闭合的倒角端。 在相对端，探头从炉子突出，热电偶引线端接。 引线通过探针中的灌封化合物，例如氧化镁。 而探针导电结构与管基本相同，探针对感应炉中的电磁场进行响应，其基本上与管的端部相同，允许感应炉区域校准所需的温度分布，例如平坦 尽管管的长度方面，尽管由于管或相邻管材料的端部而导致的感应电流的差异。

公开(公告)号：US5249730A

公开(公告)日：1993-10-05

申请号：US26036

申请日：1993-03-04

Applicant: Yvon Millet ,  Jean Van Wittenberghe

Inventor： Yvon Millet ,  Jean Van Wittenberghe

IPC: B21C37/06 ,  C22F1/00 ,  C22F1/18 ,  G21C3/06 ,  H05B6/10 ,  B23K20/22 ,  B23K31/02

CPC classification number: C22F1/186 ,  B21C37/06 ,  G21C3/06 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2004/201 ,  G21Y2004/30 ,  Y02E30/40

Abstract: The present invention relates to a process for the manufacture of zirconium based tubes formed from layers of varying composition. The process consists in preparing the tubular blank which is intended to form the outer layer of the tube by rolling-soldering a sheet, and then in fitting it onto another tubular blank, or core block, of smaller diameter, which is obtained by piercing a small bar, and which may be coated on the inside with a plating, in soldering the ends of said blanks in order to subject the assembly to a treatment of placing it in solution in a beta phase, followed by soaking it in water and drawing it. The invention is used for the production of Duplex or Triplex type tubes with an improvement in the gross weight of zirconium needed to make 1000 kg of useful metal, with good adherence being obtained between the layers of said tube.

Abstract translation: 本发明涉及由不同成分的层形成的锆基管的制造方法。 该方法包括制备用于通过轧制片材来形成管的外层然后将其装配到较小直径的另一个管状坯料或芯块上的管状坯料，其通过刺穿 小棒，并且其可以用电镀涂覆在内部，在焊接所述坯料的端部时，以使组件经受处理以将其置于β相中的溶液中，随后将其浸入水中并将其拉伸 。 本发明用于生产双相或三重型管，其具有改善制成1000kg有用金属所需的锆的总重量，并且在所述管的层之间获得良好的附着力。

公开(公告)号：US4980092A

公开(公告)日：1990-12-25

申请号：US336031

申请日：1989-04-11

Applicant: Didier M. J. M. Pineau ,  Yves H. G. Valy

Inventor： Didier M. J. M. Pineau ,  Yves H. G. Valy

IPC: B09B3/00 ,  C10B53/00 ,  G21F9/32

CPC classification number: G21F9/32 ,  C10B53/00 ,  G21Y2004/201

Abstract: A method for the destruction of chemical stable waste by pyrolysis whereby heat is applied to the waste using at least one plasma torch formed of non-transferred arc plasma type. The waste generated inside a duct having an end orifice flows upward passing the orifice and toward the nozzle of the plasma torch, wherein the axis of the nozzle of the plasma torch and the axis of the orifice are substantially collinear. Gaseous and/or liquid waste products resulting from the heating step are subjected to expansion and combustion in the combustion chamber whereby gaseous products resulting from combustion and expansion are quenched and then washed.

Abstract translation: 一种通过热解破坏化学稳定废物的方法，其中使用至少一种由非转移电弧等离子体型形成的等离子体焰炬向废物施加热量。 在具有端部孔口的管道内产生的废物向上通过孔口并朝向等离子体焰炬的喷嘴流动，其中等离子体焰炬的喷嘴的轴线和孔口的轴线基本上共线。 由加热步骤产生的气体和/或液体废物在燃烧室中进行膨胀和燃烧，由燃烧和膨胀产生的气体产物被骤冷然后洗涤。

公开(公告)号：US4938921A

公开(公告)日：1990-07-03

申请号：US210444

申请日：1988-06-23

Applicant: Jean-Paul Mardon ,  Jacques Decours ,  Michel Weisz ,  Jacques Pelchat ,  Jean Le Pape

Inventor： Jean-Paul Mardon ,  Jacques Decours ,  Michel Weisz ,  Jacques Pelchat ,  Jean Le Pape

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

CPC classification number: G21C3/07 ,  C22C16/00 ,  C22F1/186 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2004/10 ,  G21Y2004/20 ,  G21Y2004/201 ,  Y02E30/40

Abstract: The present invention relates to a method of manufacturing tubes for a nuclear fuel element sheath, comprising a plurality of successive cold rolling and annealing steps including a final .beta. phase heat treatment consisting of maintaining said tube at a temperature between 950.degree. C. and 1250.degree. C. for a time duration sufficient for obtaining a homogeneous .beta. phase within and throughout the whole thickness of said tube, and rapidly cooling said tube to ambient temperature for retaining said .beta. phase throughout the whole thickness of said tube during subsequent cold processing steps including final cleaning of the tube.

Abstract translation: 本发明涉及一种制造用于核燃料元件护套的管的方法，包括多个连续的冷轧和退火步骤，包括最终的β相热处理，其包括将所述管保持在950℃和1250℃之间的温度 C.持续足够的时间以在所述管的整个厚度内和整个厚度内获得均匀的β相，并将所述管迅速冷却至环境温度，以便在随后的冷处理步骤期间将所述β相保持在所述管的整个厚度，包括最终 清洗管。

公开(公告)号：US4938918A

公开(公告)日：1990-07-03

申请号：US405597

申请日：1989-09-11

Applicant: Albert Weiss

Inventor： Albert Weiss

IPC: G21C3/06 ,  G21C7/10

CPC classification number: G21C3/06 ,  G21C7/10 ,  G21Y2002/104 ,  G21Y2004/201 ,  G21Y2004/40 ,  Y02E30/39 ,  Y10T29/49805 ,  Y10T29/49925 ,  Y10T29/49929

Abstract: The zirconium cladding of a coolant-displacement rod of a nuclear reactor is precollapsed in the zirconium oxide stack of pellets which supports the cladding. Current is conducted through the cladding in an atmosphere at reduced pressure containing residual oxygen, to heat the cladding to a temperature at which its yield strength is reduced. Then, while the rod remains at this temperature, it is subjected to isostatic pressure which collapses the cladding uniformly. The formation, by reason of exposure to neutron flux, of a long unsupported gap in the cladding which might be collapsed under the pressure of the coolant is precluded. In addition, the rod retains its symmetry. The outer surface of the cladding is oxidized, facilitating the movement of the rod into its thimbles of the core and improving the resistances of the cladding to reaction with the coolant.

Abstract translation: 核反应堆的冷却剂置换杆的锆包层在支撑包层的颗粒的氧化锆堆中被预先挤压。 电流在包含残留氧的减压气氛中通过包层传导，以将包层加热到其屈服强度降低的温度。 然后，当杆保持在该温度下时，其受到均匀压缩包层的等静压力。 由于暴露于中子通量，由于在冷却剂的压力下可能被折叠的包层中长的未支撑的间隙的形成被排除。 此外，杆保持其对称性。 包层的外表面被氧化，有利于杆移动到芯的套管中，并且改善包层与冷却剂反应的电阻。

公开(公告)号：US4927468A

公开(公告)日：1990-05-22

申请号：US278068

申请日：1988-11-30

Applicant: Gerald D. Johnson ,  Ralph J. Lobsinger ,  Margaret L. Hamilton ,  David S. Gelles

Inventor： Gerald D. Johnson ,  Ralph J. Lobsinger ,  Margaret L. Hamilton ,  David S. Gelles

IPC: G21C3/06 ,  C21D6/00 ,  C22C38/00 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32 ,  C22C38/54 ,  G21C3/07

CPC classification number: C22C38/32 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  G21C3/07 ,  G21Y2002/104 ,  G21Y2004/10 ,  G21Y2004/201 ,  Y02E30/40

Abstract: This is a very narrowly defined martensitic steel alloy fuel cladding material for liquid metal cooled reactors, and a process for making such a martensitic steel alloy material. The alloy contains about 10.6 wt. % chromium, about 1.5 wt. % molybdenum, about 0.85 wt. % manganese, about 0.2 wt. % niobium, about 0.37 wt. % silicon, about 0.2 wt. % carbon, about 0.2 wt. % vanadium, 0.05 maximum wt. % nickel, about 0.015 wt. % nitrogen, about 0.015 wt. % sulfur, about 0.05 wt. % copper, about 0.007 wt. % boron, about 0.007 wt. % phosphorous, and with the remainder being essentially iron. The process utilizes preparing such an alloy and homogenizing said alloy at about 1000.degree. C. for 16 hours; annealing said homogenized alloy at 1150.degree. C. for 15 minutes; and tempering said annealed alloy at 700.degree. C. for 2 hours. The material exhibits good high temperature strength (especially long stress rupture life) at elevated temperature (500.degree.-760.degree. C.).

公开(公告)号：US4918710A

公开(公告)日：1990-04-17

申请号：US235593

申请日：1988-08-24

Applicant: Josette Bard

Inventor： Josette Bard

IPC: C22F1/18 ,  G21C3/34

CPC classification number: C22F1/186 ,  G21C3/3424 ,  G21Y2002/104 ,  G21Y2002/302 ,  G21Y2004/201 ,  G21Y2004/40 ,  Y02E30/40

Abstract: A zirconium alloy sheet containing 2 to 3% of niobium is cooled at a controlled and moderate rate to the .alpha.+.beta. state. Plates (2, 2') are cut from the cooled sheet and cold-formed. The grid (1) is assembled from the plates (2, 2') which are welded together and the completed grid is then returned to the .alpha. phase by heating at a temperature of between 400.degree. and 550.degree. C. for a period of ten to thirty hours.

Abstract translation: 将含有2〜3％铌的锆合金板以受控和适度的速率冷却至α+β状态。 从冷却片切割板（2,2'）并冷成型。 格栅（1）从焊接在一起的板（2,2'）组装，然后通过在400-550℃的温度下加热完成的格子返回到α相，持续十分钟 至三十小时。