Process for complex shape formation using flexible graphite sheets

    公开(公告)号:US06663807B2

    公开(公告)日:2003-12-16

    申请号:US09855066

    申请日:2001-05-14

    Applicant: Jeremy H. Klug

    Inventor: Jeremy H. Klug

    Abstract: Processes are provided for formation of complex shapes by embossing of a sheet of flexible graphite material. In one approach, a sheet of material is provided with a variable resin concentration across its width, and the position of the variable resin concentration is correlated with the position of embossing features which will result in thinner areas in the embossed articles. In a second approach, recesses are provided in the embossing rollers to accommodate material flow during embossing. These recesses result in protrusions formed on the articles, which protrusions must then be removed in a machining operation.

    Process and apparatus for embossing graphite articles
    3.
    发明授权
    Process and apparatus for embossing graphite articles 有权
    用于压花石墨制品的方法和装置

    公开(公告)号:US06604457B2

    公开(公告)日:2003-08-12

    申请号:US09853389

    申请日:2001-05-11

    Applicant: Jeremy H. Klug

    Inventor: Jeremy H. Klug

    Abstract: Apparatus and methods are provided for the embossing of a sheet of flexible graphite material between a pair of embossing rollers. The embossing rollers include a primary embossing roller and a backup roller. The primary embossing roller has an embossing pattern defined thereon. One or both of the rollers include a raised stabilization area adjacent a periphery of the embossing pattern. The raised stabilization area preferably has a roughened outer surface for better gripping the sheet of flexible graphite material. The raised stabilization areas apply a stabilizing force to the sheet adjacent the periphery of the embossing pattern, thereby limiting egress of the material laterally away from the embossing pattern. The roughened surfaces increase the grip of the raised areas upon the sheet, thus aiding in pulling the sheet between the rollers and also aiding in the application of lateral stabilization forces to the sheet.

    Abstract translation: 提供了设备和方法,用于在一对压花辊之间压花一片柔性石墨材料。 压花辊包括主压花辊和支撑辊。 主压花辊具有限定在其上的压花图案。 一个或两个辊包括邻近压纹图案的周边的凸起的稳定区域。 升高的稳定区域优选具有粗糙的外表面,以更好地夹持柔性石墨材料片。 凸起的稳定区域对与压花图案的周边相邻的片材施加稳定力,从而限制材料从压纹图案侧向远离。 粗糙表面增加了片材上的凸起区域的抓握力,从而有助于将片材拉动在辊子之间,并且还有助于向片材施加横向稳定力。

    Uniform graphite plate
    4.
    发明授权
    Uniform graphite plate 失效
    均匀石墨板

    公开(公告)号:US08372539B2

    公开(公告)日:2013-02-12

    申请号:US11861355

    申请日:2007-09-26

    CPC classification number: H01M8/0213 H01M8/0254 H01M8/026 H01M2008/1095

    Abstract: A substrate useful for the formation of, inter alia, a flow field plate for a proton exchange membrane fuel cell, the substrate formed of at least one resin-impregnated sheet of compressed particles of exfoliated graphite comprising two major surfaces, the substrate having an active area with flow field channels thereon, the sheet of compressed particles of exfoliated graphite having a local web thickness in at least about 50% of its active area that is no more than about 55% greater than the minimum web thickness of the active area of the substrate.

    Abstract translation: 用于特别形成用于质子交换膜燃料电池的流场板的衬底,所述衬底由至少一个树脂浸渍的片状压缩的片状石墨形成,所述片材包括两个主表面,所述衬底具有活性的 在其上具有流场通道的区域,片状压缩的片状石墨片的局部幅材厚度至少为其有效面积的约50%,不大于约55%的有效面积的最小腹板厚度 基质。

    Process for complex shape formation using flexible graphite sheets
    5.
    发明授权
    Process for complex shape formation using flexible graphite sheets 失效
    使用柔性石墨片形成复杂形状的工艺

    公开(公告)号:US07182898B2

    公开(公告)日:2007-02-27

    申请号:US10476251

    申请日:2002-05-13

    Applicant: Jeremy H. Klug

    Inventor: Jeremy H. Klug

    Abstract: Processes are provided for formation of complex shapes by embossing of a sheet of flexible graphite material. In one approach, a sheet (26) of material is provided with a variable resin concentration across a selected dimension of the sheet, and the position of the variable which will result in thinner areas in the embossed articles. In a second approach, recesses are provided in the embossing rollers (30 and/or 32) to accomodate material flow during embossing. These recesses result in protrusions formed on the articles, which protrusions must then be removed in a machining operation.

    Abstract translation: 提供了通过压制柔性石墨材料片形成复杂形状的工艺。 在一种方法中,材料片材(26)在片材的选定尺寸上具有可变的树脂浓度,并且变量的位置将导致压纹制品中的较薄区域。 在第二种方法中,在压印辊(30和/或32)中设置凹槽以在压印期间容纳材料流动。 这些凹陷导致形成在物品上的突起,这些突起必须在加工操作中被去除。

    Uniform Graphite Plate
    6.
    发明申请
    Uniform Graphite Plate 失效
    均匀石墨板

    公开(公告)号:US20080131756A1

    公开(公告)日:2008-06-05

    申请号:US11861355

    申请日:2007-09-26

    CPC classification number: H01M8/0213 H01M8/0254 H01M8/026 H01M2008/1095

    Abstract: A a substrate useful for the formation of, inter alia, a flow field plate for a proton exchange membrane fuel cell, the substrate formed of at least one resin-impregnated sheet of compressed particles of exfoliated graphite comprising two major surfaces, the substrate having an active area with flow field channels thereon, the sheet of compressed particles of exfoliated graphite having a local web thickness in at least about 50% of its active area that is no more than about 55% greater than the minimum web thickness of the active area of the substrate.

    Abstract translation: 一种用于特别形成用于质子交换膜燃料电池的流场板的衬底,所述衬底由至少一个树脂浸渍的片状压缩颗粒形成,所述片材包括两个主表面,所述基材具有 活性区域,其上具有流场通道,片状压缩的片状石墨片的局部幅材厚度至少为其有效面积的约50%,不大于约55% 底物。

    Graphite article comprising a compressed mass of impregnated graphite particles and a reactive lubricant
    7.
    发明授权
    Graphite article comprising a compressed mass of impregnated graphite particles and a reactive lubricant 失效
    石墨制品包括压缩的浸渍石墨颗粒和反应性润滑剂

    公开(公告)号:US06841248B2

    公开(公告)日:2005-01-11

    申请号:US10113382

    申请日:2002-03-29

    Applicant: Jeremy H. Klug

    Inventor: Jeremy H. Klug

    CPC classification number: B32B9/00 Y10T428/30

    Abstract: A graphite article comprising a compressed mass of graphite particles and a reactive lubricant, and a method of producing a graphite articles comprising a compressed mass of graphite particles and a reactive lubricant. The compressed mass of graphite particles may be impregnated with a lubricant and a resin. The lubricant may be a functionalized wax, fatty ester, silicone, or fatty acid. The lubricant may also be partially or fully fluorinated.

    Abstract translation: 包括石墨颗粒和反应性润滑剂的压缩物质的石墨制品,以及石墨制品的制造方法,所述石墨制品包括压缩石墨颗粒和反应性润滑剂。 石墨颗粒的压缩质量可以用润滑剂和树脂浸渍。 润滑剂可以是官能化蜡,脂肪酯,硅氧烷或脂肪酸。 润滑剂也可以部分或完全氟化。

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