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    Methods for producing complex ceramic articles
    1.
    发明申请
    Methods for producing complex ceramic articles 审中-公开
    复合陶瓷制品的制造方法

    公开(公告)号：US20050156361A1

    公开(公告)日：2005-07-21

    申请号：US10761908

    申请日：2004-01-21

    申请人： John Holowczak ,  Wayde Schmidt ,  Marc Sauerhoefer

    发明人： John Holowczak ,  Wayde Schmidt ,  Marc Sauerhoefer

    IPC分类号： B28B7/34 ,  B29C33/40 ,  B29C35/08 ,  B29C41/02 ,  C04B35/111 ,  C04B35/14 ,  C04B35/486

    CPC分类号： B28B7/342 ,  B28B7/346 ,  B33Y80/00 ,  C04B35/111 ,  C04B35/14 ,  C04B35/486 ,  C04B35/62655 ,  C04B2235/602 ,  C04B2235/6026 ,  C04B2235/6028

    摘要： Ceramic articles, particularly ceramic cores and molds for an investment casting and combinations of ceramic cores and molds are produced using temporary molds, patterns or models made by a rapid prototyping or solid free-form manufacturing process. The molds, cores and patterns are contacted with ceramic slurry, which is then solidified by lowering the temperature of the slurry. What was liquid in the original slurry is then removed by sublimation leaving behind a ceramic article having a configuration, which is defined by the temporary tooling. The ceramic article so produced may be densified by sintering, and is used in a casting process.

    摘要翻译： 陶瓷制品，特别是陶瓷芯和用于熔模铸造的模具和陶瓷芯和模具的组合使用通过快速成型或固体自由形式制造工艺制成的临时模具，图案或模型来生产。 模具，芯和图案与陶瓷浆料接触，然后通过降低浆料的温度将其固化。 然后通过升华除去原始浆料中的液体，留下具有由临时工具限定的构造的陶瓷制品。 如此制造的陶瓷制品可以通过烧结来致密化，并且用于铸造工艺中。

    Mechanical coupling for a rotor shaft assembly of dissimilar materials
    3.
    发明授权
    Mechanical coupling for a rotor shaft assembly of dissimilar materials 失效
    用于不同材料的转子轴组件的机械联轴器

    公开(公告)号：US07527479B2

    公开(公告)日：2009-05-05

    申请号：US11221440

    申请日：2005-09-08

    申请人： Jun Shi ,  David Bombara ,  Kevin E. Green ,  Connic Bird ,  John Holowczak

    发明人： Jun Shi ,  David Bombara ,  Kevin E. Green ,  Connic Bird ,  John Holowczak

    IPC分类号： F04D29/00

    CPC分类号： F01D5/025 ,  F05B2260/301 ,  F05D2250/131 ,  F05D2250/232 ,  F05D2250/292

    摘要： A mechanical coupling for coupling a ceramic disc member to a metallic shaft includes a first wedge clamp and a second wedge clamp. A fastener engages a threaded end of a tie-bolt to sandwich the ceramic disc between the wedge clamps. An axial spring is positioned between the fastener and the second wedge clamp to apply an axial preload along the longitudinal axis. Another coupling utilizes a rotor shaft end of a metallic rotor shaft as one wedge clamp. Still another coupling includes a solid ceramic rotor disc with a multiple of tie-bolts radially displaced from the longitudinal axis to exert the preload on the solid ceramic rotor disc.

    摘要翻译： 用于将陶瓷盘构件耦合到金属轴的机械联接器包括第一楔形夹具和第二楔形夹具。 紧固件与衔铁螺栓的螺纹端接合以将陶瓷盘夹在楔形夹具之间。 轴向弹簧定位在紧固件和第二楔形夹具之间以沿着纵向轴线施加轴向预载荷。 另一个联轴器使用金属转子轴的转子轴端作为一个楔形夹。 另一个联接器包括固体陶瓷转子盘，其具有从纵向轴线径向偏移的多个连接螺栓，以将固体载荷施加在固体陶瓷转子盘上。

    Mechanical coupling for a rotor shaft assembly of dissimilar materials
    4.
    发明申请
    Mechanical coupling for a rotor shaft assembly of dissimilar materials 失效
    用于不同材料的转子轴组件的机械联轴器

    公开(公告)号：US20070237646A1

    公开(公告)日：2007-10-11

    申请号：US11221440

    申请日：2005-09-08

    申请人： Jun Shi ,  David Bombara ,  Kevin Green ,  Connic Bird ,  John Holowczak

    发明人： Jun Shi ,  David Bombara ,  Kevin Green ,  Connic Bird ,  John Holowczak

    IPC分类号： F04D29/00

    CPC分类号： F01D5/025 ,  F05B2260/301 ,  F05D2250/131 ,  F05D2250/232 ,  F05D2250/292

    摘要： A mechanical coupling for coupling a ceramic disc member to a metallic shaft includes a first wedge clamp and a second wedge clamp. A fastener engages a threaded end of a tie-bolt to sandwich the ceramic disc between the wedge clamps. An axial spring is positioned between the fastener and the second wedge clamp to apply an axial preload along the longitudinal axis. Another coupling utilizes a rotor shaft end of a metallic rotor shaft as one wedge clamp. Still another coupling includes a solid ceramic rotor disc with a multiple of tie-bolts radially displaced from the longitudinal axis to exert the preload on the solid ceramic rotor disc.

    摘要翻译： 用于将陶瓷盘构件耦合到金属轴的机械联接器包括第一楔形夹具和第二楔形夹具。 紧固件与衔铁螺栓的螺纹端接合以将陶瓷盘夹在楔形夹具之间。 轴向弹簧定位在紧固件和第二楔形夹具之间以沿着纵向轴线施加轴向预载荷。 另一个联轴器使用金属转子轴的转子轴端作为一个楔形夹。 另一个联接器包括固体陶瓷转子盘，其具有从纵向轴线径向偏移的多个连接螺栓，以将固体载荷施加在固体陶瓷转子盘上。

    Ceramic-to-metal shaft assembly
    5.
    发明申请
    Ceramic-to-metal shaft assembly 有权
    陶瓷 - 金属轴组件

    公开(公告)号：US20070177937A1

    公开(公告)日：2007-08-02

    申请号：US11343071

    申请日：2006-01-30

    申请人： John Holowczak ,  Constance Bird ,  Gary Sanders ,  Anthony Giamei ,  Robert Telakowski ,  Edward Rothman

    发明人： John Holowczak ,  Constance Bird ,  Gary Sanders ,  Anthony Giamei ,  Robert Telakowski ,  Edward Rothman

    IPC分类号： B25G3/00

    CPC分类号： F16D1/027 ,  Y10T403/479 ,  Y10T403/57 ,  Y10T403/635 ,  Y10T403/74

    摘要： A shaft assembly includes a metallic portion and a ceramic portion. In a disclosed example, a ceramic shaft has a generally conical end that is at least partially received within a generally conical recess in one end of a metallic shaft. The recess has a first portion that has an inner surface that is received directly against a corresponding outer surface on a section of the ceramic shaft conical portion. A second portion of the recess is radially spaced from the ceramic shaft and provides a controlled gap within which a braze alloy is maintained. In one example, the second portion has an axial length that is more than twice a radial depth of the second portion. In another example, a transition surface between the first and second portions of the recess has a linear profile.

    摘要翻译： 轴组件包括金属部分和陶瓷部分。 在公开的示例中，陶瓷轴具有大致锥形的端部，其至少部分地容纳在金属轴的一端中的大致锥形的凹部内。 所述凹部具有第一部分，所述第一部分具有内表面，所述内表面直接接收在所述陶瓷轴锥形部分的一部分上的对应的外表面上。 凹部的第二部分与陶瓷轴径向间隔开并提供可控的间隙，在该间隙内保持钎焊合金。 在一个示例中，第二部分具有的轴向长度大于第二部分的径向深度的两倍。 在另一示例中，凹部的第一和第二部分之间的过渡表面具有线性轮廓。

    Method of producing unitary multi-element ceramic casting cores and integral core/shell system
    9.
    发明申请
    Method of producing unitary multi-element ceramic casting cores and integral core/shell system 审中-公开
    生产单元多元陶瓷铸铁和整体式核/壳体系的方法

    公开(公告)号：US20050258577A1

    公开(公告)日：2005-11-24

    申请号：US10850211

    申请日：2004-05-20

    申请人： John Holowczak ,  Michael Sahm ,  Wayde Schmidt

    发明人： John Holowczak ,  Michael Sahm ,  Wayde Schmidt

    IPC分类号： B28B7/00 ,  B28B7/34 ,  F01D5/28

    CPC分类号： B28B7/0014 ,  B28B7/342 ,  F01D5/284 ,  F05D2230/21

    摘要： A method for producing ceramic articles having a complex geometry. Temporary tooling is provided having cavities corresponding in shape to the desired ceramic article. The cavities are filled with a ceramic slurry which is solidified by freezing or gelation of a polymer. The ceramic is treated to remove the original liquid portion of the slurry and the temporary tooling is removed. The ceramic is then sintered. The ceramic article thus obtained may be used to investment cast a metal article.

    摘要翻译： 一种具有复杂几何形状的陶瓷制品的制造方法。 提供临时加工具有与所需陶瓷制品相对应的形状的空腔。 空腔填充有通过聚合物的冷冻或凝胶化固化的陶瓷浆料。 处理陶瓷以除去浆料的原始液体部分，并且移除临时工具。 然后将陶瓷烧结。 如此获得的陶瓷制品可用于投资铸造金属制品。