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    METHOD FOR REPAIRING COMPONENT
    13.
    发明申请
    METHOD FOR REPAIRING COMPONENT 有权
    修理组件的方法

    公开(公告)号：US20140008330A1

    公开(公告)日：2014-01-09

    申请号：US13934541

    申请日：2013-07-03

    申请人： Mayank Tiwari ,  Laurent Cretegny ,  Yong Liu ,  Bala Srinivasan Parthasarathy ,  Ravi Agrawal ,  Yong Wu

    发明人： Mayank Tiwari ,  Laurent Cretegny ,  Yong Liu ,  Bala Srinivasan Parthasarathy ,  Ravi Agrawal ,  Yong Wu

    IPC分类号： B23K9/04

    CPC分类号： B23K9/04 ,  B23P6/00 ,  C23C24/106

    摘要： A method for repairing a component is provided. The method comprises: tracing an electrode across a defect/damage on the component at a preselected distance from the component; feeding a first metal powder and a second metal powder into a discharging gap between the electrode and the component; controlling feed rates of the first and second metal powders separately; and electro-spark depositing the first and second metal powders to the component to form a hybrid metal coating. The first metal powder comprises a first metal or alloy with a Vickers hardness rating of about 70-200% of the Vickers hardness rating of the component. The second metal powder comprises a second metal or alloy having lubricating/anti-corrosion properties.

    摘要翻译： 提供了修复部件的方法。 所述方法包括：以与所述部件预选的距离，跨过所述部件上的缺陷/损伤来追踪电极; 将第一金属粉末和第二金属粉末供给到电极和部件之间的放电间隙中; 分别控制第一和第二金属粉末的进料速率; 并将第一和第二金属粉末电火花沉积到组分上以形成混合金属涂层。 第一金属粉末包括维氏硬度等级为组件的维氏硬度等级的约70-200％的第一金属或合金。 第二金属粉末包括具有润滑/防腐性能的第二金属或合金。

    BRAZE MATERIAL AND PROCESSES FOR MAKING AND USING
    15.
    发明申请
    BRAZE MATERIAL AND PROCESSES FOR MAKING AND USING 有权
    制造和使用的制造材料和工艺

    公开(公告)号：US20080142575A1

    公开(公告)日：2008-06-19

    申请号：US11611297

    申请日：2006-12-15

    申请人： Laurent Cretegny

    发明人： Laurent Cretegny

    IPC分类号： B23K31/02 ,  B23K35/36

    CPC分类号： B23K35/0244 ,  B23K35/24 ,  Y10T428/12028 ,  Y10T428/12146 ,  Y10T428/12181

    摘要： A braze material and processes for making and using the material, such as for use in the manufacturing, coating, repair, and build-up of superalloy components. The braze material is composed of particles with melt-modifying constituents that are limited to the surfaces of the particles, yet are capable of sufficiently promoting the heating of the particles by conventional means and microwave radiation to achieve at least partial melting of the particles. The melt-modifying constituents are in the form of particulates embedded in the outer surface region of each particle. The particulates are formed of melting point depressant(s) and/or microwave coupling enhancer(s), are much smaller than the particle in which they are embedded.

    摘要翻译： 钎焊材料和用于制造和使用材料的方法，例如用于制造，涂覆，修复和积聚超级合金部件。 钎焊材料由具有限制于颗粒表面的熔融改性成分的颗粒组成，但是能够通过常规方式和微波辐射充分促进颗粒的加热，以实现颗粒的至少部分熔融。 熔融改性成分是嵌入每个颗粒的外表面区域中的微粒的形式。 由降粘剂和/或微波耦合增强剂形成的颗粒比它们嵌入的颗粒小得多。

    Braze alloy compositions
    17.
    发明授权
    Braze alloy compositions 有权
    钎焊合金组成

    公开(公告)号：US07156280B1

    公开(公告)日：2007-01-02

    申请号：US11300394

    申请日：2005-12-15

    申请人： Liang Jiang ,  Laurent Cretegny ,  Warren M. Miglietti

    发明人： Liang Jiang ,  Laurent Cretegny ,  Warren M. Miglietti

    IPC分类号： B23K35/14 ,  C22F1/10 ,  B32B15/00

    CPC分类号： C22C30/00 ,  B23K35/3033 ,  B23K35/304 ,  B23K35/3046 ,  C22C19/055 ,  C22C19/056 ,  C22C19/057 ,  C22C19/058 ,  C22C19/07 ,  Y10T428/12861

    摘要： A nickel-based high-temperature braze alloy composition includes Cr, Hf, and B. Furthermore, a cobalt-based high-temperature braze alloy composition includes Cr, Hf, and B. The braze alloys can be used, for example, as a single homogenous braze. The braze alloys can also be used, for example, as a component in a wide gap braze mixture where higher or lower melting point superalloy and/or brazing powder is used. The braze alloys may permit joining/repairing of superalloy articles with complex shape and may be used in high temperature applications.

    摘要翻译： 镍基高温钎焊合金组成包括Cr，Hf和B.此外，钴基高温钎焊合金组合物包括Cr，Hf和B.钎焊合金可以用作例如 单一均质钎焊。 钎焊合金也可以用作例如使用更高或更低熔点的高合金和/或钎焊粉末的宽间隙钎焊混合物中的组分。 钎焊合金可以允许具有复杂形状的超合金制品的接合/修复，并且可以在高温应用中使用。

    CASTING METHODS AND APPARATUS
    18.
    发明申请
    CASTING METHODS AND APPARATUS 有权
    铸造方法和装置

    公开(公告)号：US20130000862A1

    公开(公告)日：2013-01-03

    申请号：US13528227

    申请日：2012-06-20

    申请人： Laurent Cretegny ,  Bernard Patrick Bewlay

    发明人： Laurent Cretegny ,  Bernard Patrick Bewlay

    IPC分类号： B22D27/15 ,  B22C9/00

    CPC分类号： B22D21/025 ,  B22C9/04 ,  B22D11/005 ,  B22D18/06

    摘要： One embodiment is a method. The method includes providing a casting apparatus including a first chamber and a second chamber, wherein the first chamber is isolated from the second chamber. The method includes charging an alloy composition into a crucible present in the first chamber and melting the alloy composition in the crucible to form a molten alloy composition. The method includes discharging the molten alloy composition into a casting mold present in the second chamber; applying a positive pressure to the first chamber to create a first chamber pressure; and applying a vacuum to the second chamber to create a second chamber pressure, wherein the first chamber pressure is greater than the second chamber pressure. The method further includes casting a filament or a turbine component from the molten alloy composition in the casting mold. An apparatus for casting a filament or a turbine component is also provided.

    摘要翻译： 一个实施例是一种方法。 该方法包括提供包括第一室和第二室的铸造设备，其中第一室与第二室隔离。 该方法包括将合金组合物装入第一室中存在的坩埚中并熔化坩埚中的合金组成以形成熔融合金组合物。 该方法包括将熔融合金组合物排出到存在于第二室中的铸模中; 向第一室施加正压以产生第一室压力; 以及向所述第二室施加真空以产生第二室压力，其中所述第一室压力大于所述第二室压力。 该方法还包括从铸模中的熔融合金组合物铸造细丝或涡轮机部件。 还提供了用于铸造灯丝或涡轮机部件的设备。

    Braze materials and processes therefor
    19.
    发明授权
    Braze materials and processes therefor 有权
    钎焊材料和工艺

    公开(公告)号：US08342386B2

    公开(公告)日：2013-01-01

    申请号：US12236788

    申请日：2008-09-24

    申请人： Laurent Cretegny ,  Sundar Amancherla ,  Jeffrey Jon Schoonover ,  Balasubramaniam Vaidhyanathan

    发明人： Laurent Cretegny ,  Sundar Amancherla ,  Jeffrey Jon Schoonover ,  Balasubramaniam Vaidhyanathan

    IPC分类号： B23K31/00

    CPC分类号： B23K1/0018 ,  B23K1/005 ,  B23K35/22 ,  Y10T428/12063 ,  Y10T428/12139

    摘要： Braze materials and processes for using braze materials, such as for use in the manufacturing, coating, repair, and build-up of superalloy components. The braze material contains a plurality of first particles of a metallic material having a melting point, and a plurality of second particles comprising at least one nonmetallic material chosen from the group consisting of oxides, carbides, and nitrides of at least one metal. The nonmetallic material is more susceptible to heating by microwave radiation than the metallic material of the first particles, and the nonmetallic material is present in the braze material in an amount sufficient to enable the first particles to completely melt when the first and second particles are subjected to heating by microwave radiation.

    摘要翻译： 钎焊用于使用钎焊材料的材料和工艺，例如用于制造，涂覆，修复和积聚超合金部件。 钎焊材料包含多个具有熔点的金属材料的第一颗粒和多个第二颗粒，其包含至少一种选自至少一种金属的氧化物，碳化物和氮化物的非金属材料。 非金属材料比第一颗粒的金属材料更容易被微波辐射加热，并且非金属材料以足以使第一颗粒和第二颗粒经受第一颗粒完全熔化的量存在于钎焊材料中 通过微波辐射加热。

    Method and apparatus for casting filaments
    20.
    发明授权
    Method and apparatus for casting filaments 有权
    铸造长丝的方法和装置

    公开(公告)号：US08151865B1

    公开(公告)日：2012-04-10

    申请号：US13075360

    申请日：2011-03-30

    申请人： Laurent Cretegny ,  Bernard Patrick Bewlay

    发明人： Laurent Cretegny ,  Bernard Patrick Bewlay

    IPC分类号： B22D46/00 ,  B22D11/00

    CPC分类号： B22D21/025 ,  B22D11/005 ,  B22D18/06

    摘要： One embodiment is a method. The method includes providing a casting apparatus including a first chamber and a second chamber, wherein the first chamber is isolated from the second chamber. The method includes charging a superalloy composition into a crucible present in the first chamber and melting the superalloy composition in the crucible to form a molten superalloy composition. The method includes discharging the molten superalloy composition into a casting mold present in the second chamber; applying a positive pressure to the first chamber to create a first chamber pressure; and applying a vacuum to the second chamber to create a second chamber pressure, wherein the first chamber pressure is greater than the second chamber pressure. The method further includes casting at least one filament from the molten superalloy composition in the casting mold. An apparatus for casting a plurality of filaments is also provided.

    摘要翻译： 一个实施例是一种方法。 该方法包括提供包括第一室和第二室的铸造设备，其中第一室与第二室隔离。 该方法包括将超合金组合物装入第一室中存在的坩埚中并熔化坩埚中的超合金组合物以形成熔融的高合金组合物。 该方法包括将熔融的超合金组合物排出到存在于第二室中的铸模中; 向第一室施加正压以产生第一室压力; 以及向所述第二室施加真空以产生第二室压力，其中所述第一室压力大于所述第二室压力。 该方法还包括从铸模中的熔融超合金组合物铸造至少一根细丝。 还提供了用于铸造多根长丝的装置。