Zirconia-stabilized multi-filamentary niobium-tin superconducting wire
    3.
    发明申请
    Zirconia-stabilized multi-filamentary niobium-tin superconducting wire 失效
    氧化锆稳定的多丝铌锡超导线

    公开(公告)号:US20060207787A1

    公开(公告)日:2006-09-21

    申请号:US11406636

    申请日:2006-04-19

    IPC分类号: H01B12/00

    摘要: A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain Nb3Sn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy rod having zirconium and oxygen in solid solution and heat treating the drawn wire in the presence of tin to yield at least one continuous filament comprising ultra-fine grain Nb3Sn having semi-coherent ZrO2 precipitates disposed therein. The ZrO2 precipitates serve to stabilize the ultra-fine grain microstructure of the Nb3Sn at temperatures up to 1100° C. and allows Nb3Sn to maintain the ultra-fine grain microstructure when heat treated at temperatures that are greater than those previously used. By using higher temperatures to form Nb3Sn, the time required for heat treatment can be significantly reduced.

    摘要翻译: 一种多丝超导线,其中长丝包含氧化锆稳定的超细晶粒Nb 3 Sn。 超导线材通过拉丝预成型体而形成,该预成型体包括金属基体和至少一个在固溶体中具有锆和氧的铌合金棒,并在锡的存在下热处理拉丝,得到至少一根连续的长丝, 具有设置在其中的半结晶的ZrO 2·析出物的细晶Nb 3 Sn。 ZrO 2 2析出物用于在高达1100℃的温度下稳定Nb 3 Sn的超细晶粒微观结构,并允许Nb 3 N / > Sn以在以前使用的温度下进行热处理时保持超细晶粒微观结构。 通过使用较高的温度来形成Nb 3 Sn,可以显着地降低热处理所需的时间。

    System and method for thermal forming with active cooling and parts formed thereby
    4.
    发明申请
    System and method for thermal forming with active cooling and parts formed thereby 审中-公开
    用于主动冷却的热成型系统和方法以及由此形成的零件

    公开(公告)号:US20070044874A1

    公开(公告)日:2007-03-01

    申请号:US11214489

    申请日:2005-08-26

    IPC分类号: C22F1/10 C22F1/18

    CPC分类号: B23K26/703

    摘要: A method for thermal forming includes determining a process window for initiating cooling, locally heating at least one region on a specimen to achieve a pre-selected geometry deformation, initiating active cooling of the heated region within the process window to control at least one material property of the specimen at the heated region and actively cooling the heated region to a pre-selected temperature. A system for thermal forming includes a thermal source for heating the region on the specimen to achieve a pre-selected geometry deformation, an active cooling module for cooling the region to a pre-selected temperature and a control module to control at least one of the thermal source and active cooling module in accordance with a process window to initiate active cooling to control at least one material property of the specimen at the heated region. The process window has an upper time limit for initiating cooling.

    摘要翻译: 用于热成型的方法包括确定用于启动冷却的工艺窗口,局部加热样品上的至少一个区域以实现预先选定的几何变形,启动在工艺窗口内的加热区域的主动冷却以控制至少一种材料性质 的样品在加热区域并主动地将加热区域冷却到预选温度。 一种用于热成型的系统包括用于加热样品上的区域以实现预先选择的几何变形的热源,用于将该区域冷却到预选温度的主动冷却模块和控制模块中的至少一个 热源和主动冷却模块,其根据工艺窗口启动主动冷却以控制加热区域处的样品的至少一种材料特性。 过程窗口具有启动冷却的上限时间。

    METHOD OF FORMING A STRUCTURAL COMPONENT HAVING A NANO SIZED/SUB-MICRON HOMOGENEOUS GRAIN STRUCTURE
    6.
    发明申请
    METHOD OF FORMING A STRUCTURAL COMPONENT HAVING A NANO SIZED/SUB-MICRON HOMOGENEOUS GRAIN STRUCTURE 失效
    形成具有纳米尺寸/亚微米均质颗粒结构的结构组分的方法

    公开(公告)号:US20070261458A1

    公开(公告)日:2007-11-15

    申请号:US11285853

    申请日:2005-11-22

    IPC分类号: B21C23/00

    摘要: A method of making nano/sub-micron sized grains in a work piece material having a lateral side has the steps of providing a die. The die has an entrance channel with a longitudinal axis and an exit channel. The entrance channel and the exit channel are connected to one another to form an angle. The method has the step of providing a first sacrificial material with a complementary size to the work piece and placing the sacrificial first material and the work piece in an entrance channel. The first sacrificial material and the work piece are aligned with the longitudinal axis. The method has the step of extruding the combination of the first sacrificial material, and the work piece through the intersection of the entrance and the exit channels. The resulting shear deformation forms the nano/sub-micron sized grains in the work piece. This configuration reduces frictional effects thereby producing homogenous nano grain structure. This configuration reduces applied load and enables equal channel angular extrusion of thin sheets.

    摘要翻译: 在具有侧面的工件材料中制造纳米/亚微米尺寸的颗粒的方法具有提供模具的步骤。 模具具有纵向轴线和出口通道的入口通道。 入口通道和出口通道彼此连接形成一个角度。 该方法具有提供具有与工件互补的尺寸的第一牺牲材料并将牺牲的第一材料和工件放置在入口通道中的步骤。 第一牺牲材料和工件与纵向轴线对齐。 该方法具有通过入口和出口通道的交叉部分挤出第一牺牲材料和工件的组合的步骤。 所产生的剪切变形在工件中形成纳米/亚微米尺寸的颗粒。 这种结构降低摩擦效应,从而产生均匀的纳米晶粒结构。 该配置减少了施加的负载,并实现了薄板的等通道角挤压。

    Method of manufacturing an MRI device
    7.
    发明申请
    Method of manufacturing an MRI device 有权
    制造MRI装置的方法

    公开(公告)号:US20050062571A1

    公开(公告)日:2005-03-24

    申请号:US10979228

    申请日:2004-11-03

    IPC分类号: G01R33/383 H01F7/02 H01F1/00

    摘要: A method of manufacturing a magnetic resonance imaging (MRI) device is provided including providing at least one magnet positioned between a keeper device and a yoke, the keeper device being positioned at a pole region of the at least one magnet, positioning at least one pole device at the pole region of the at least one magnet, and removing the keeper device from the pole region to allow the at least one pole device to be positioned at the pole region of the at least one magnet.

    摘要翻译: 提供了一种制造磁共振成像(MRI)装置的方法,包括提供位于保持装置和轭之间的至少一个磁体,所述保持装置位于所述至少一个磁体的极区,定位至少一个极 在所述至少一个磁体的极区域处的装置,以及从所述极区域移除所述保持装置,以允许所述至少一个极装置定位在所述至少一个磁体的极区域处。

    Method and system for fabricating components
    9.
    发明申请
    Method and system for fabricating components 审中-公开
    组件的制造方法和系统

    公开(公告)号:US20050273999A1

    公开(公告)日:2005-12-15

    申请号:US10864677

    申请日:2004-06-09

    摘要: A method for fabricating a component includes providing a workpiece, an electroerosion apparatus comprising an electrode tool. The electroerosion apparatus is operated on the workpiece, for removing a portion thereof. A method for fabricating a composite magnet includes a workpiece comprising a composite material including a magnetizable material and an epoxy resin. An electroerosion apparatus, comprising an electrode tool having an abrasive material, removes a portion of the workpiece by an abrasive action of the electrode tool on the workpiece.

    摘要翻译: 一种用于制造部件的方法包括提供工件,包括电极工具的电腐蚀装置。 电腐蚀装置在工件上操作,用于去除其一部分。 复合磁体的制造方法包括:包含可磁化材料和环氧树脂的复合材料的工件。 包括具有研磨材料的电极工具的电蚀设备通过工件上的电极工具的研磨作用去除工件的一部分。