Method of manufacturing sinter-active U3O8 powder and method of producing nuclear fuel pellets utilizing the same
    4.
    发明授权
    Method of manufacturing sinter-active U3O8 powder and method of producing nuclear fuel pellets utilizing the same 有权
    烧结活性U3O8粉末的制造方法以及使用其的制造核燃料粒子的方法

    公开(公告)号:US08449795B2

    公开(公告)日:2013-05-28

    申请号:US11947502

    申请日:2007-11-29

    摘要: There is provided a method of producing U3O8 powder having large surface area and small particle size by oxidizing defective UO2 pellets and manufacturing nuclear fuel pellets which are stable in a pore structure and high in density through the use of a mixture comprising UO2 powder and U3O8 powder. The method includes producing an U308 powder having a surface area of at least 1 m2/g by oxidizing defective UO2 pellets at a temperature of 300 to 370° C. in such a way that a maximum weight increase rate per 1 g of the UO2 pellets is up to 0.06 wt %/min; producing a mixed powder by mixing the U3O8 powder with an UO2 powder by 2 to 15 wt %; producing a compact by compression molding the mixed powder; and sintering the compact in a reducing gas atmosphere at a temperature of 1600 to 1800° C. In addition, a small amount of an Al-compound may be added to the oxidized U3O8 powder before the U3O8 powder is mixed with the UO2 powder. The additive such as Al is mixed with the U3O8 powder and then mixed with the UO2 powder to produce the pellets by a conventional production method. This ensures a stable pore structure, high density and a considerable increase in a crystal grain size.

    摘要翻译: 提供一种通过氧化不良UO 2颗粒并制造核孔结构稳定且密度高的核燃料颗粒,通过使用包含UO 2粉末和U 3 O 8粉末的混合物制备具有大表面积和小粒径的U3O8粉末的方法 。 该方法包括通过在300-370℃的温度下氧化有缺陷的UO 2颗粒来生产表面积至少为1m 2 / g的U308粉末,使得每1g UO 2颗粒的最大重量增加率 高达0.06重量%/分钟; 通过将U3O8粉末与UO2粉末混合2〜15重量%来制造混合粉末; 通过压缩混合粉末制造压块; 并在1600〜1800℃的还原气体气氛中烧结。另外,在U 3 O 8粉末与UO 2粉末混合之前,可以向氧化的U3O8粉末中添加少量Al化合物。 将诸如Al的添加剂与U3O8粉末混合,然后与UO 2粉末混合以通过常规生产方法制备颗粒。 这确保了稳定的孔结构,高密度和晶粒尺寸的显着增加。

    METHOD OF CONTROLLING SOLUBILITY OF ADDITIVES AT AND NEAR GRAIN BOUNDARIES, AND METHOD OF MANUFACTURING SINTERED NUCLEAR FUEL PELLET HAVING LARGE GRAIN SIZE USING THE SAME
    5.
    发明申请
    METHOD OF CONTROLLING SOLUBILITY OF ADDITIVES AT AND NEAR GRAIN BOUNDARIES, AND METHOD OF MANUFACTURING SINTERED NUCLEAR FUEL PELLET HAVING LARGE GRAIN SIZE USING THE SAME 有权
    控制添加剂在谷物边界附近的溶解性的方法以及使用其制造具有大颗粒尺寸的烧结核燃料片的方法

    公开(公告)号:US20120098149A1

    公开(公告)日:2012-04-26

    申请号:US13275784

    申请日:2011-10-18

    IPC分类号: G21C21/00

    摘要: Provided are a method of controlling the compositional gradient and solubility of doped-additives at grain boundaries during sintering of a uranium-based oxide green pellet including the additives, and a method of manufacturing a sintered nuclear fuel pellet having a large grain size using the same. The grain boundary solubility of the doped-additives is maintained at a certain level by stepwise varying of an oxygen partial pressure during isothermal sintering of a uranium-based oxide green pellet including the additives. The method of manufacturing a sintered nuclear fuel pellet having a large grain size includes preparing additive mixed uranium oxide powder, forming an additive mixed uranium oxide green pellet using the mixed powder, heating the green pellet to a sintering temperature in a gas atmosphere having a low oxygen partial pressure, and sintering while a sintering gas atmosphere is changed to stepwise increase an oxygen partial pressure at the isothermal sintering temperature.

    摘要翻译: 提供一种在包含添加剂的铀基氧化物生颗粒的烧结期间控制掺杂添加剂在晶界处的组成梯度和溶解度的方法,以及使用其制备具有大晶粒尺寸的烧结核燃料芯片的方法 。 掺杂添加剂的晶界溶解度通过在包括添加剂的铀基氧化物生颗粒的等温烧结期间逐步改变氧分压而保持在一定水平。 制造具有大粒径的烧结核燃料颗粒的方法包括制备添加剂混合氧化铀粉末,使用混合粉末形成添加剂混合的氧化铀颗粒,将生坯颗粒加热至低浓度的气体气氛中的烧结温度 氧分压和烧结,同时烧结气氛改变为在等温烧结温度下逐步增加氧分压。

    High temperature proton exchange membrane using ionomer/solid proton conductor, preparation method thereof and fuel cell containing the same
    6.
    发明授权
    High temperature proton exchange membrane using ionomer/solid proton conductor, preparation method thereof and fuel cell containing the same 有权
    使用离聚物/固体质子导体的高温质子交换膜,其制备方法和含有其的燃料电池

    公开(公告)号:US07977008B2

    公开(公告)日:2011-07-12

    申请号:US10564556

    申请日:2003-11-26

    IPC分类号: H01M8/10 C08J5/20

    摘要: The present invention relates to a high temperature proton-conducting polymer membrane, a preparation method thereof, a membrane-electrode assembly using the same and a fuel cell containing the same. More particularly, it relates to a proton-conducting polymer membrane enabling fuel cell operation under high temperature and normal pressure condition, wherein sulfoalkyl or sulfoaryl groups are introduced between layers of metal phosphate and cation exchange groups are present in side chains, a preparation method thereof and a membrane-electrode assembly using the proton exchange membrane and a fuel cell containing the same.

    摘要翻译: 本发明涉及一种高温质子传导聚合物膜,其制备方法,使用其的膜电极组件和含有该膜电极组件的燃料电池。 更具体地说,本发明涉及能够在高温和常压条件下使燃料电池工作的质子传导性聚合物膜,其中磺基烷基或磺基芳基引入金属磷酸盐和阳离子交换基团之间存在于侧链中,其制备方法 以及使用该质子交换膜的膜 - 电极组件和包含该质子交换膜的燃料电池。

    Motor
    7.
    发明申请
    Motor 失效
    发动机

    公开(公告)号:US20110140583A1

    公开(公告)日:2011-06-16

    申请号:US12923095

    申请日:2010-09-01

    IPC分类号: H02K11/00

    CPC分类号: H02K29/10 H02K11/22

    摘要: Disclosed is a motor. The motor includes a rotor case, a ring member mounted on the rotor case and including an encoder on a bottom surface thereof extending outside of the rotor case, and an encoder sensor detecting speed information of the rotor case from the encoder such that the rotor case rotates at low speeds enabling a LightScribe operation.

    摘要翻译: 公开了一种电动机。 电动机包括转子壳体,安装在转子壳体上的环形构件,并且在其底面上包括延伸到转子壳体外部的编码器,以及编码器传感器,其从编码器检测转子壳体的速度信息,使得转子壳体 以低速旋转,实现LightScribe操作。

    Motor device
    8.
    发明申请
    Motor device 审中-公开
    电机装置

    公开(公告)号:US20110050011A1

    公开(公告)日:2011-03-03

    申请号:US12654427

    申请日:2009-12-18

    IPC分类号: H02K11/00

    摘要: A motor device includes a base plate on which a motor for rotating a disk is disposed, a flexible printed circuit board disposed on the base plate and having a circuit pattern applying power to the motor, and a screw mounting portion provided with a ground pattern of the FPCB, mounted with a screw engaged to electrically connect the ground pattern to the base plate, and having a part on which solders are provided.

    摘要翻译: 一种电动机装置,包括:基板,设置有用于旋转盘的电动机;柔性印刷电路板,设置在所述基板上,并具有向所述电动机施加电力的电路图案;以及螺钉安装部, FPCB,其安装有接合以将接地图案电连接到基板的螺钉,并且具有设置有焊料的部件。

    Disk chucking device and disk driving device having the same
    9.
    发明申请
    Disk chucking device and disk driving device having the same 有权
    盘式夹紧装置及具有该盘夹持装置的盘驱动装置

    公开(公告)号:US20090119690A1

    公开(公告)日:2009-05-07

    申请号:US12149954

    申请日:2008-05-09

    IPC分类号: G11B17/03

    CPC分类号: G11B17/0282

    摘要: A disk chucking device and a disk driving device having the same are disclosed. The disk chucking device may include: a chuck base, on which a boss is formed; chuck chips inserted in the chuck base in a manner such that the chuck chips protrude out from the chuck base; an elastic member, which elastically supports a pair of adjacent chuck chips towards an outer side of the chuck base; and a protrusion portion, which is formed on a bottom of the boss, and which supports the elastic member. The disk chucking device can improve the environment of the elastic members that support the chuck chips, to improve the alignment between the rotation centers of the disk and the chuck base.

    摘要翻译: 公开了一种盘式夹紧装置及具有该盘夹持装置的盘驱动装置。 盘夹持装置可以包括:卡盘基座,其上形成有凸台; 卡盘芯片以卡盘片从卡盘基部突出的方式插入卡盘底座中; 弹性构件,其朝向卡盘基座的外侧弹性地支撑一对相邻的卡盘片; 以及突起部,其形成在所述凸台的底部上并且支撑所述弹性构件。 盘片夹紧装置可以改善支撑卡盘片的弹性件的环境,从而改善盘片的旋转中心与卡盘基座之间的对准。

    Optical disk apparatus
    10.
    发明授权
    Optical disk apparatus 失效
    光盘装置

    公开(公告)号:US07514671B2

    公开(公告)日:2009-04-07

    申请号:US11516771

    申请日:2006-09-07

    IPC分类号: G01D5/34 H01J40/14 H01L23/48

    摘要: An optical disk apparatus includes a printed circuit board; a stator fixed on the printed circuit board; a rotor configured to receive an optical disk thereon, the rotor being rotated by an electromagnetic interaction with the stator; and a sensing part fixed on the printed circuit board and sensing a rotation of the optical disk. Here, the sensing part includes a sensor; a terminal connecting the sensor with the printed circuit board electrically; and a plastic mold fixing the terminal thereto. The optical disk apparatus has a reduced number of components to allow reduced production costs, and has a simple manufacturing process to allow reduced production times and defect rate.

    摘要翻译: 光盘装置包括印刷电路板; 固定在印刷电路板上的定子; 被配置为在其上容纳光盘的转子,所述转子通过与所述定子的电磁相互作用而旋转; 以及固定在印刷电路板上并感测光盘旋转的感测部件。 这里,感测部包括传感器; 将传感器与印刷电路板电连接的端子; 以及将端子固定在其上的塑料模具。 光盘装置具有减少的部件数量以允许降低生产成本,并且具有简单的制造工艺以允许减少的生产时间和缺陷率。