Separator for fuel cell, fuel cell stack, method for manufacturing separator for fuel cell, and fuel cell vehicle
    4.
    发明申请
    Separator for fuel cell, fuel cell stack, method for manufacturing separator for fuel cell, and fuel cell vehicle 审中-公开
    燃料电池用分离器,燃料电池堆,燃料电池用隔板的制造方法以及燃料电池车辆

    公开(公告)号:US20070037033A1

    公开(公告)日:2007-02-15

    申请号:US10572741

    申请日:2004-08-19

    摘要: A separator for a fuel cell comprises a corrugated or undulated gas flow path portion (4) formed on central portion (2) of a clad thin plate: and a flat portion (6) formed on an outer periphery of the central portion, wherein the clad thin plate is obtained by applying rolling work on a metal plate whose surface is covered with a precious metal layer at a draft of 5% to 15% to make clad, and a limit plate thickness residual rate indicating a boundary limit in which cracking of the precious metal layer in the clad thin plate and reduction of corrosion resistance due to exposure of the metal plate are negligible is obtained in advance, wherein regarding a sectional shape in a direction orthogonal to a flow path of the gas flow path portion (4), when a plate thickness of the thinnest portion of a rib shoulder portion is represented as t2 and a plate thickness of a peripheral portion of the separator is represented as t4, a relationship of t2≧t4×limit plate thickness residual rate is satisfied.

    摘要翻译: 燃料电池用隔板包括形成在包层薄板的中央部(2)上的波纹状或波状的气体流路部(4)和形成在中央部的外周的平坦部(6),其中, 通过在表面覆盖有贵金属层的金属板上以5%〜15%的压下量进行轧制加工,得到包层薄板,制成包层,限制板厚残留率表示边界极限, 预先获得包覆薄板中的贵金属层和由金属板的暴露引起的耐腐蚀性的降低,其中关于与气体流路部分(4)的流动路径正交的方向上的截面形状, 当肋肩部的最薄部分的板厚被表示为t 2,并且隔板的周边部分的板厚表示为t 4时,t 2> = t 4×限制板厚度残差的关系 价格满意。

    Rolling element and a process for producing the rolling element
    7.
    发明申请
    Rolling element and a process for producing the rolling element 失效
    滚动元件和滚动元件的制造方法

    公开(公告)号:US20060058152A1

    公开(公告)日:2006-03-16

    申请号:US11137398

    申请日:2005-05-26

    IPC分类号: F16H15/38

    摘要: A rolling element including a base metal, and a nickel coat formed on a surface of the base metal and cooperating with the base metal to constitute a rolling contact surface satisfying condition that a mean value of ratios of L1 to L2 as measured in at least three optional observation areas is in a range of from 1.2 to 2.4, where each observation area is disposed in a cross section taken in a vertical direction relative to the surface of the base metal and is defined by two parallel vertical lines; lengths L1 and L2 respectively represent a length of an interface between the base metal and the nickel coat, and a length of a reference line segment extending perpendicular to the vertical direction, in same observation area.

    摘要翻译: 一种包括基体金属的滚动元件和形成在母材表面上并与基底金属配合的镍涂层,以构成滚动接触表面,该滚动接触面满足如下测量的L 1至L 2的平均值的条件: 至少三个可选观察区域在1.2至2.4的范围内,其中每个观察区域设置在相对于母材表面的垂直方向截取的横截面中,并且由两条平行的垂直线限定; 长度L 1和L 2分别表示在同一观察区域中基底金属和镍涂层之间的界面的长度以及垂直于垂直方向延伸的参考线段的长度。

    Bearing pressure-resistant member and process for making the same
    9.
    发明申请
    Bearing pressure-resistant member and process for making the same 审中-公开
    轴承耐压件及其制造方法

    公开(公告)号:US20050045249A1

    公开(公告)日:2005-03-03

    申请号:US10936800

    申请日:2004-09-09

    CPC分类号: F16C33/62 C23C8/22 C23C8/80

    摘要: A bearing pressure-resistant member, including a matrix and a carbide dispersed in the matrix, the carbide having an average particle size of not more than 0.3 μm. A carbon (C) content in an outer surface of the bearing pressure-resistant member is in a range of 0.6 to 1.5 mass percent. A process for making the bearing pressure-resistant member including subjecting a workpiece containing C to either of gas carburizing and gas carbonitriding to enhance the C content in the outer surface of the workpiece to 0.6 to 1.5 mass percent, holding the workpiece at a first temperature not more than an Ac1 transformation point under reduced pressure, heating the workpiece to a second temperature not less than the Ac1 transformation point under reduced pressure, followed by holding the workpiece at the second temperature, and subjecting the workpiece to quenching.

    摘要翻译: 一种轴承耐压构件,其包括基体和分散在基体中的碳化物,所述碳化物的平均粒径不大于0.3μm。 轴承耐压部件的外表面的碳(C)含量在0.6〜1.5质量%的范围内。 一种制造所述轴承耐压构件的方法,包括使含有C的工件对气体渗碳和气体碳氮共渗进行任一种以将工件外表面中的C含量提高至0.6至1.5质量%,将工件保持在第一温度 在减压下不超过Ac1相变点,在减压下将工件加热至不小于Ac1相变点的第二温度,然后将工件保持在第二温度,并对工件进行淬火。