Procédé de fabrication de tubes à base de zirconium formés de couches de composition différente
    191.
    发明公开
    Procédé de fabrication de tubes à base de zirconium formés de couches de composition différente 失效
    一种用于锆的管由不同的组合物的层的制造过程中。

    公开(公告)号:EP0559588A1

    公开(公告)日:1993-09-08

    申请号:EP93420093.2

    申请日:1993-03-01

    Abstract: La présente invention est relative à un procédé de fabrication de tubes à base de zirconium formés de couches de composition différente.
    Le procédé consiste à préparer l'ébauche tubulaire destinée à former la couche externe du tube par roulage-soudage d'une feuille puis, à l'enfiler sur une autre ébauche tubulaire ou bloc d'âme de plus petit diamètre obtenu par perçage d'une billette et éventuellement revêtu intérieurement d'un placage, à souder les dites ébauches à leurs extrémités, enfin à soumettre l'ensemble à un traitement de mise en solution en phase bêta, suivi d'une trempe à l'eau et d'un filage.
    L'invention trouve son application dans la réalisation de tubes du type Duplex ou Triplex avec une mise au mille de zirconium améliorée tout en obtenant une bonne adhérence entre les couches dudit tube.

    Abstract translation: 在制备用于形成通过轧制焊接片材,然后在穿线它放到较小直径的另一个管状毛坯或芯块中的管的外层管状坯料的方法besteht,通过镗孔一个坯料获得,并且任选地与内部涂敷 电镀,焊接在所述坯料在其端部,而在最后整个经受处理,β相的溶解,由水淬和纺纱其次。 ... 本发明发现了其在生产双或三螺旋的管子的应用与每吨锆的改进的使用量,同时获得所述管的层之间的良好的粘合性。

    Zirconium based alloy member of low irradiation growth, method of manufacturing the same, fuel channel box and assembly, and use of the same
    193.
    发明公开
    Zirconium based alloy member of low irradiation growth, method of manufacturing the same, fuel channel box and assembly, and use of the same 失效
    Platte aus Zirkonlegierung mit niedrigem Bestrahlungswachstum; deren Herstellungsverfahren und Verwendung。

    公开(公告)号:EP0488027A1

    公开(公告)日:1992-06-03

    申请号:EP91119732.5

    申请日:1991-11-19

    Applicant: HITACHI, LTD.

    Abstract: A zirconium based alloy plate of low irradiation growth, containing not more than 5 wt% Sn and/or not more than 5 wt% Nb, and the balance Zr of not less than 90 wt%. The alloy plate has such a texture that 〈0001〉 orientation (FR value) with respect to direction perpendicular to the surface of the plate ranges from 0.20 to 0.50. This alloy plate is effective in being used to form a fuel channel box (1). Also a fuel assembly using this channel box (1) is provided in which the crystal orientation of the zirconium alloy is made random by a heat treatment. Specifically, by the heat treatment, the Fr, Ft, and Fℓ values thereof are set to 0.25 to 0.50, 0.25 to 0.36, and 0.25 to 0.36, respectively.

    Abstract translation: 一种低照度生长的锆基合金板,其含有不超过5重量%的Sn和/或不大于5重量%的Nb,余量为不小于90重量%。 该合金板具有相对于垂直于板表面的方向的长度&0001&方向(FR值)为0.20至0.50的质地。 该合金板有效地用于形成燃料通道箱(1)。 还提供了一种使用该通道箱(1)的燃料组件,其中通过热处理使锆合金的晶体取向随机化。 具体地说,通过热处理,Fr,Ft和F l值分别设定为0.25〜0.50,0.25〜0.36,0.25〜0.36。

    Procédé et dispositif pour la destruction de déchets chimiquement stables
    195.
    发明公开
    Procédé et dispositif pour la destruction de déchets chimiquement stables 失效
    Verfahren und Vorrichtung zum Vernichten von chemisch stableenAbfällen。

    公开(公告)号:EP0338927A1

    公开(公告)日:1989-10-25

    申请号:EP89401094.1

    申请日:1989-04-19

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

    Abstract: . la torche (1) est du type à plasma d'arc non transféré ;
    . on dirige la buse (3) de ladite torche (1) vers un orifice (8), de façon que l'axe (4) de ladite buse et l'axe (6) dudit orifice soient au moins approximati­vement confondus ; et
    . on fait passer un flux (20) desdits déchets à travers ledit orifice (8), de façon qu'ils s'avancent vers ladite torche (1).

    Abstract translation: - 所述手电筒(1)是非转移电弧等离子体型; - 所述手电筒(1)的喷嘴(3)指向孔口(8),使得所述喷嘴的轴线(4)和轴线 所述孔口(6)至少大致重合; 和 - 所述废物的流动(20)通过所述孔(8),使得其朝向所述割炬(1)向前移动。 ... ...

    Zirconium-base alloy structural member and process for its preparation
    198.
    发明公开
    Zirconium-base alloy structural member and process for its preparation 失效
    锆基合金结构构件及其制备方法

    公开(公告)号:EP0154559A3

    公开(公告)日:1987-07-29

    申请号:EP85301587

    申请日:1985-03-07

    Applicant: HITACHI, LTD.

    Abstract: A zirconium-base alloy structural member, wherein at least one element selected from phosphours, vanadium, niobium, tantalum, arsenic, antimony, bismuth, sulfur, chromium, molybdenum, tungsten, selenium, tellurium and polonium is distributed on a surface of said member, particularly to a fuel covering tube or spacer for nuclear fuel assembly which is contained the element in a surface oxide layer. The final cold-rolled fuel covering tube is produced by the steps of annealing and coating with the element in the surface oxide layer. The spacer is produced by a step of coating with the element in the surface oxide layer. A process for preparation of a zirconium-base alloy structural member includes, in addition to subjecting a zirconium-base alloy to a final plastic working step, a step of coating its surface with the element. There can be obtained a zirconium-base alloy structural member exhibiting a high corrosion resistance and having a high ductility.

    Coating a nuclear fuel with a burnable poison
    199.
    发明公开
    Coating a nuclear fuel with a burnable poison 失效
    Beschichtung von Brennstoffkernen mit brennbarem礼物。

    公开(公告)号:EP0137675A1

    公开(公告)日:1985-04-17

    申请号:EP84305737.3

    申请日:1984-08-22

    Abstract: A method of coating a nuclear fuel with a burnable poison wherein the surface of the nuclear fuel is cleaned, and a burnable poison layer is then sputtered thereon. Preferably, a relatively low sputtering deposition rate is selected that would heat the nuclear fuel surface to less than 200°C and external heat is applied to heat the nuclear fuel surface to between 200°C and 600°C. To make the burnable poison layer less hygroscopic, an overcoat layer of a hydrophobic material is sputtered on the burnable poison layer.

    Abstract translation: 一种涂覆具有可燃毒物的核燃料的方法,其中核燃料的表面被清洁,然后在其上溅射可燃的毒物层。 优选地,选择相对较低的溅射沉积速率,其将核燃料表面加热到小于200℃,并且施加外部热量以将核燃料表面加热到200℃至600℃。为了使可燃毒物层 较少的吸湿性,疏水材料的外涂层溅射在可燃毒物层上。

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