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    Casting processes, casting apparatuses therefor, and castings produced thereby
    1.
    发明授权
    Casting processes, casting apparatuses therefor, and castings produced thereby 有权
    铸造工艺，铸造设备和由此生产的铸件

    公开(公告)号：US08210240B2

    公开(公告)日：2012-07-03

    申请号：US12474475

    申请日：2009-05-29

    申请人： Shyh-Chin Huang ,  Stephen Francis Rutkowski ,  Michael Francis Xavier Gigliotti, Jr. ,  Roger John Petterson ,  Lawrence Bernard Kool

    发明人： Shyh-Chin Huang ,  Stephen Francis Rutkowski ,  Michael Francis Xavier Gigliotti, Jr. ,  Roger John Petterson ,  Lawrence Bernard Kool

    IPC分类号： B22C9/04 ,  B22D27/04

    CPC分类号： B22D27/045

    摘要： A casting process and apparatus for producing directionally-solidified castings, and castings produced therewith. The process entails applying a facecoat slurry to a surface within a mold cavity to form a continuous solid facecoat on the surface, introducing a molten metal alloy into the mold cavity so that the molten metal alloy contacts the facecoat, and then immersing the mold in a liquid coolant to cool and solidify the molten metal alloy and form a casting of the metal alloy, during which an oxide layer forms on the casting surface. The facecoat is sufficiently adherent to the oxide layer such that at least a portion of the facecoat detaches from the mold surface and remains tightly adhered to the casting surface in the event the casting contracts during cooling. The facecoat contains at least 60 weight percent of a first phase of yttria, and the balance of the facecoat is a binder phase of an inorganic material.

    摘要翻译： 用于生产定向凝固铸件的铸造工艺和设备，以及由其制造的铸件。 该方法需要将表面涂层浆料施加到模腔内的表面以在表面上形成连续的实心面涂层，将熔融金属合金引入模腔中，使得熔融金属合金接触面涂层，然后将模具浸入 液体冷却剂以冷却和固化熔融金属合金，并形成金属合金的铸件，在此期间在铸造表面上形成氧化物层。 表面涂层与氧化物层充分贴合，使得至少一部分正面涂层在模具表面脱离并在冷却期间铸件收缩的情况下保持紧密地粘附于铸造表面。 面涂层含有至少60重量％的第一相的氧化钇，其余的表面涂层是无机材料的粘结相。

    Liquid metal cooled directional solidification process
    7.
    发明授权
    Liquid metal cooled directional solidification process 有权
    液态金属冷却定向凝固工艺

    公开(公告)号：US06276433B1

    公开(公告)日：2001-08-21

    申请号：US09425307

    申请日：1999-10-25

    申请人： Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Roger John Petterson ,  Ji-Cheng Zhao

    发明人： Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Roger John Petterson ,  Ji-Cheng Zhao

    IPC分类号： B22D2704

    CPC分类号： B22D21/025 ,  B22D27/045

    摘要： A liquid metal cooled directional solidification process provides improved solidification characteristics at the solidification front. In the process, a mold is filled with molten metal; and a solidification interface is caused to pass through the molten metal by progressively immersing the mold into a cooling liquid. The cooling liquid is a eutectic or near eutectic metal composition. A directional solidification furnace includes a heating furnace, a liquid cooling bath and a mold positioner. The heating furnace has an open bottom end through which a heated mold containing molten metal is lowered from the furnace. The liquid cooling bath comprises a molten eutectic or near eutectic metal composition positioned beneath the open end of the furnace. The mold positioner gradually lowers the heated mold from the furnace, through the open end and immerses the mold into the liquid cooling bath.

    摘要翻译： 液态金属冷却定向凝固方法在凝固前沿提供了改进的凝固特性。 在该过程中，模具中充满熔融金属; 并且通过将模具逐渐浸入冷却液中，使凝固界面通过熔融金属。 冷却液是共晶或近共晶金属组成。 定向凝固炉包括加热炉，液体冷却槽和模具定位器。 加热炉具有开口的底端，含有熔融金属的加热模具通过该底端从炉中降低。 液体冷却浴包括位于炉的开口端下方的熔融共晶或近共晶金属组合物。 模具定位器通过开口端将炉子的加热模具逐渐降低，并将模具浸入液体冷却浴中。

    Apparatus and method for producing single crystal metallic objects
    10.
    发明授权
    Apparatus and method for producing single crystal metallic objects 有权
    用于生产单晶金属物体的装置和方法

    公开(公告)号：US07011141B2

    公开(公告)日：2006-03-14

    申请号：US10652906

    申请日：2003-09-02

    申请人： Shyh-Chin Huang ,  Michael Francis X. Gigliotti, Jr. ,  Stephen Francis Rutkowski ,  Roger John Petterson ,  Paul Steven Svec

    发明人： Shyh-Chin Huang ,  Michael Francis X. Gigliotti, Jr. ,  Stephen Francis Rutkowski ,  Roger John Petterson ,  Paul Steven Svec

    IPC分类号： B22D9/04

    CPC分类号： C30B11/002

    摘要： A mold is provided for enabling casting of single crystal metallic articles including a part-defining cavity, a sorter passage positioned vertically beneath and in fluid communication with the part-defining cavity, and a seed cavity positioned vertically beneath and in fluid communication with the sorter passage. The sorter passage includes a shape suitable for encouraging a single crystal structure in solidifying molten metal. Additionally, a portion of the mold between the sorter passage and the part-defining cavity includes a notch for facilitating breakage of a cast article proximate the notch during thermal stress build-up, so as to prevent mold breakage or the inclusion of part defects.

    摘要翻译： 提供了一种模具，用于使得能够铸造单晶金属制品，其包括部分限定的腔体，分隔器通道，其垂直地定位在下部并且与部件限定腔体流体连通;以及种子腔，其位于垂直下方并与分选器流体连通 通道。 分拣机通道包括适于鼓励单晶结构固化熔融金属的形状。 此外，分类器通道和部件限定腔之间的模具的一部分包括用于在热应力累积期间使切口附近的铸造件断裂的凹口，以防止模具断裂或部件缺陷的包含。