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    Vacuum arc remelting apparatus and process
    1.
    发明授权
    Vacuum arc remelting apparatus and process 失效
    真空电弧重熔设备及工艺

    公开(公告)号：US06295309B1

    公开(公告)日：2001-09-25

    申请号：US09651962

    申请日：2000-08-31

    申请人： Mark Gilbert Benz ,  Michael Francis Henry ,  William Thomas Carter, Jr. ,  Bernard Patrick Bewlay

    发明人： Mark Gilbert Benz ,  Michael Francis Henry ,  William Thomas Carter, Jr. ,  Bernard Patrick Bewlay

    IPC分类号： H05B360

    CPC分类号： H05B7/07

    摘要： A VAR process is conducted in an apparatus characterized by a crucible wall that provides a stable shelf anchor. The VAR apparatus includes a furnace chamber, a consumable electrode formed of a material to be remelted within the furnace chamber and a crucible within the furnace chamber. The crucible has a wall that forms a vessel to collect melt material from the consumable electrode. At least part of the wall is textured to provide area for mechanical stabilization of the shelf as the underside of the shelf melts and the upperside of the shelf forms. In a vacuum arc remelting process, a consumable electrode is loaded into a furnace chamber above a cooled crucible having a textured wall that forms a vessel to collect melt material from the consumable electrode. The process includes striking a direct electric current between the electrode and a bottom of the crucible to cause melting of material from a tip of the electrode. Melt material is collected from the tip in the crucible. The melt material is cooled to form an ingot characterized by a shelf of solidified material forming adjacent the textured section of the crucible wall in advance of a lower boundary of solidifying material.

    摘要翻译： 在由坩埚壁构成的设备中进行VAR工艺，该坩埚壁提供稳定的搁板锚。 VAR设备包括炉室，由炉室内重熔的材料形成的可消耗电极和炉室内的坩埚。 坩埚具有形成容器以从消耗性电极收集熔体材料的壁。 墙壁的至少一部分是纹理化的，以提供架子的机械稳定性的区域，因为架子的下侧熔化，并且架子的上侧形成。 在真空电弧重熔工艺中，可消耗电极被装载到具有纹理壁的冷却坩埚之上的炉室中，所述纹理壁形成容器以从可消耗电极收集熔体材料。 该过程包括在电极和坩埚的底部之间引起直流电流，引起材料从电极尖端的熔化。 从坩埚中的尖端收集熔体材料。 熔融材料被冷却以形成特征在于在凝固材料的下边界之前形成为邻近坩埚壁的纹理部分的凝固材料的搁板。

    Stationary computed tomography system with compact x ray source assembly
    2.
    发明授权
    Stationary computed tomography system with compact x ray source assembly 失效
    具有紧凑x射线源组件的固定计算机断层摄影系统

    公开(公告)号：US07068749B2

    公开(公告)日：2006-06-27

    申请号：US10440695

    申请日：2003-05-19

    申请人： Manohar Gopalaswamy Kollegal ,  Colin Richard Wilson ,  Bernard Patrick Bewlay ,  Mark Gilbert Benz

    发明人： Manohar Gopalaswamy Kollegal ,  Colin Richard Wilson ,  Bernard Patrick Bewlay ,  Mark Gilbert Benz

    IPC分类号： A61B6/00 ,  G01N23/083 ,  G21K1/10 ,  H01J35/00

    CPC分类号： H01J35/14 ,  A61B6/032 ,  A61B6/035 ,  A61B6/4028 ,  A61B6/4275 ,  A61B6/4488 ,  H01J35/08 ,  H01J35/12

    摘要： A stationary CT system comprising at least one annular x ray source assembly comprising a plurality of respective x ray sources spaced along the annular x ray source assembly. Each of the x ray sources comprises a respective stationary x ray target, an electron beam focusing chamber; an x ray channel; an electron beam source disposed in a spaced apart relationship with respect to the respective stationary x ray target; a vacuum chamber disposed in between the electron beam focusing chamber and an insulating chamber where the insulating chamber houses the electron beam source; a radiation window at a pre-defined angular displacement from the respective stationary x ray target and the x ray channel; and a target substrate attached to the respective stationary x ray target.

    摘要翻译： 一种固定CT系统，包括至少一个环形X射线源组件，其包括沿着所述环形X射线源组件间隔开的多个相应的X射线源。 每个x射线源包括相应的固定x射线靶，电子束聚焦腔; 一个x射线通道; 电子束源，其相对于相应的固定x射线靶设置成间隔开的关系; 设置在电子束聚焦室和绝缘室之间的真空室，绝缘室容纳电子束源; 来自相应的固定x射线靶和X射线通道的预定角度位移的辐射窗; 以及附着到各个固定x射线靶的靶基板。

    Titanium aluminide article with improved surface finish
    3.
    发明授权
    Titanium aluminide article with improved surface finish 有权
    具有改善表面光洁度的钛化铝制品

    公开(公告)号：US09011205B2

    公开(公告)日：2015-04-21

    申请号：US13396908

    申请日：2012-02-15

    申请人： Bernard Patrick Bewlay ,  Jonathan Sebastian Janssen ,  Bin Wei ,  Youdong Zhou

    发明人： Bernard Patrick Bewlay ,  Jonathan Sebastian Janssen ,  Bin Wei ,  Youdong Zhou

    IPC分类号： B24C1/00 ,  B24C1/04

    CPC分类号： B24C1/04

    摘要： Titanium-containing articles having improved surface finishes and methods for changing the surface of titanium containing articles, for example by removing overstock, are provided. One example method includes passing a fluid at high pressure across a surface of an titanium aluminide alloy-containing article, for example, a turbine blade, at high linear speed and deforming the surface of the titanium aluminide alloy-containing article, and removing material from the surface of the titanium aluminide alloy-containing article. Though aspects of the invention can be used in fabricating high performance turbine blades, the methods disclosed can be applied to the treatment of any titanium-containing article for which it is difficult to obtain an improved surface finish.

    摘要翻译： 提供了具有改进的表面光洁度的含钛制品和用于改变含钛制品的表面的方法，例如通过去除过量的材料。 一个示例性方法包括使流体在高压下穿过含钛铝化物合金的制品例如涡轮叶片的表面以高线速度流动并且使含钛铝合金的制品的表面变形，并且从 含钛铝合金的制品的表面。 尽管本发明的方面可以用于制造高性能涡轮叶片，但是所公开的方法可以应用于难以获得改进的表面光洁度的任何含钛制品的处理。

    CASTING METHODS AND APPARATUS
    4.
    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。

    Method and apparatus for casting filaments
    6.
    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。

    Methods for the formation of refractory metal intermetallic composites, and related articles and compositions
    9.
    发明授权
    Methods for the formation of refractory metal intermetallic composites, and related articles and compositions 失效
    形成难熔金属金属间复合材料的方法，以及相关的制品和组合物

    公开(公告)号：US07575042B2

    公开(公告)日：2009-08-18

    申请号：US11393591

    申请日：2006-03-30

    申请人： Bernard Patrick Bewlay ,  Melvin Robert Jackson

    发明人： Bernard Patrick Bewlay ,  Melvin Robert Jackson

    IPC分类号： B22C1/00 ,  B22C3/00 ,  B22C9/00 ,  B28B7/00

    CPC分类号： B22C3/00

    摘要： A method for forming an article is described. The method includes the step of applying a precursor material to at least one surface of a mold structure for casting the article, and curing the applied precursor material. The precursor material includes facecoat-forming constituents which can be curably converted into a facecoat; and a protective coating-former for the article being cast. Molten material is then introduced into the mold structure, so as to come in contact with the facecoat formed from the cured precursor material. The molten material is cooled, to form the article. The cured precursor material, which is in contact with a surface of the cast article, is then reacted with the article, to form the protective coating on the surface of the article. Related mold structures are also described.

    摘要翻译： 描述用于形成物品的方法。 该方法包括将前体材料施加到用于铸造制品的模具结构的至少一个表面并固化所施加的前体材料的步骤。 前体材料包括可以被卷曲地转化成面漆的面涂层成分; 以及用于被铸造的制品的保护涂层成型剂。 然后将熔融材料引入模具结构中，以便与由固化的前体材料形成的表面涂层接触。 将熔融的材料冷却以形成制品。 与铸造件的表面接触的固化的前体材料然后与制品反应，以在制品的表面上形成保护涂层。 还描述了相关的模具结构。

    HAFNIA-MODIFIED RARE-EARTH METAL-BASED CERAMIC BODIES AND CASTING PROCESSES PERFORMED THEREWITH
    10.
    发明申请
    HAFNIA-MODIFIED RARE-EARTH METAL-BASED CERAMIC BODIES AND CASTING PROCESSES PERFORMED THEREWITH 有权
    HAFNIA改性稀土金属基陶瓷体和铸造工艺

    公开(公告)号：US20090197758A1

    公开(公告)日：2009-08-06

    申请号：US12023314

    申请日：2008-01-31

    申请人： Stephen Francis Bancheri ,  Frederic Joseph Klug ,  Bernard Patrick Bewlay

    发明人： Stephen Francis Bancheri ,  Frederic Joseph Klug ,  Bernard Patrick Bewlay

    IPC分类号： C04B35/50

    CPC分类号： C04B35/50 ,  B22C1/00 ,  C04B35/486 ,  C04B2235/3225 ,  C04B2235/5436 ,  C04B2235/5481 ,  C04B2235/762 ,  C04B2235/80 ,  C04B2235/9676

    摘要： Compositions suitable for use as cores and shell molds for casting of reactive metal alloys, and casting processes for producing components from such alloys. The composition contains a sintered particulate material of hafnia and at least one additional metal oxide in amounts to yield a ceramic composition containing up to 70 molar percent of hafnia, wherein the additional metal oxide is a rare-earth oxide, the sintered particulate material contains first and second phases, the first phase is the rare-earth oxide and hafnia in solid solution, the second phase is a compound of the rare-earth oxide and hafnia, and the second phase is less reactive with the reactive metal alloy than the first phase.

    摘要翻译： 适合用作用于铸造活性金属合金的芯和壳模的组合物，以及用于从这种合金制备组分的铸造工艺。 该组合物含有哈夫尼亚的烧结颗粒材料和至少一种另外的金属氧化物，其量可以产生含有至多70摩尔％的铪的陶瓷组合物，其中附加的金属氧化物是稀土氧化物，烧结颗粒材料包含第一 第二相是固溶体中的稀土氧化物和铪，第二相是稀土氧化物和铪的化合物，第二相与反应性金属合金的反应性低于第一相 。