Apparatus and method for producing single crystal metallic objects
    3.
    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

    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。

    Reinforced ceramic shell mold and related processes
    5.
    发明授权
    Reinforced ceramic shell mold and related processes 失效
    增强陶瓷外壳模具及相关工艺

    公开(公告)号:US06352101B1

    公开(公告)日:2002-03-05

    申请号:US09352111

    申请日:1999-07-14

    IPC分类号: B22C900

    摘要: A ceramic casting shell mold having a pre-selected shape is described. The shell mold comprises repeating layers of a ceramic material which define its wall thickness and shape. At least one of the layers of ceramic material contains refractory whiskers which provide structural reinforcement to the shell mold. The whiskers are usually incorporated into a layer of the ceramic material which is disposed at a position off-center of the wall-thickness of the mold. A method for making a ceramic casting shell mold is also described, as are metal- or metal alloy components cast in these shell molds.

    摘要翻译: 描述具有预选形状的陶瓷铸造壳模具。 壳模具包括限定其壁厚和形状的陶瓷材料的重复层。 陶瓷材料层中的至少一层含有对壳模具提供结构增强的难熔晶须。 晶须通常结合在陶瓷材料层中,陶瓷材料层位于模具壁厚偏离中心的位置。 还描述了制造陶瓷铸造壳模具的方法,以及铸造在这些壳模具中的金属或金属合金部件。

    Ceramic shell mold provided with reinforcement, and related processes
    6.
    发明授权
    Ceramic shell mold provided with reinforcement, and related processes 失效
    陶瓷外壳模具配有加固件及相关工艺

    公开(公告)号:US06431255B1

    公开(公告)日:2002-08-13

    申请号:US09352112

    申请日:1999-07-14

    IPC分类号: B22C902

    CPC分类号: B22C21/14 B22C9/04

    摘要: A ceramic casting shell mold having a pre-selected shape is described. It includes alternate, repeating layers of a ceramic coating material and a ceramic stucco, defining a total thickness of the shell mold; and a ceramic-based mat of reinforcing material disposed in the alternate, repeating layers of coating material and stucco. The reinforcing material for the mat is usually made from a ceramic material, and includes fibers having a bi-directional orientation. A method for making a ceramic casting shell mold is also described, as well as articles cast from such a mold, e.g., superalloy articles.

    摘要翻译: 描述具有预选形状的陶瓷铸造壳模具。 它包括陶瓷涂层材料和陶瓷灰泥的交替重复层,限定了壳模的总厚度; 以及设置在涂层材料和灰泥的交替重复层中的增强材料的陶瓷基垫。 用于垫的增强材料通常由陶瓷材料制成,并且包括具有双向取向的纤维。 还描述了制造陶瓷铸造壳模具的方法,以及从这种模具铸造的制品,例如超级合金制品。

    Reinforced ceramic shell molds, and related processes
    7.
    发明授权
    Reinforced ceramic shell molds, and related processes 失效
    加强陶瓷外壳模具及相关工艺

    公开(公告)号:US06467534B1

    公开(公告)日:2002-10-22

    申请号:US09542737

    申请日:2000-04-05

    IPC分类号: B22C100

    CPC分类号: B22C9/04

    摘要: A ceramic casting shell mold having a pre-selected shape comprises alternate, repeating layers of a ceramic coating material and a ceramic stucco, defining a total thickness of the shell mold; and a ceramic-based reinforcing sheet disposed in the alternate, repeating layers of coating material and stucco at an intermediate thickness. The ceramic-based reinforcing sheet comprises a one-piece monolithic, integral body, which comprises a pattern of holes that enhance bonding between the ceramic-based reinforcing sheet and adjacent ones of the alternate, repeating layers of ceramic coating material. The ceramic-based reinforcing sheet conforms to the shape of the mold and providing structural reinforcement to the mold.

    摘要翻译: 具有预选形状的陶瓷铸造壳模具包括限定壳模的总厚度的交替重复层陶瓷涂层材料和陶瓷灰泥; 以及设置在中间厚度的涂层材料和灰泥的交替重复层中的陶瓷基增强片。 陶瓷基增强片包括一体式整体式整体,其包括增强陶瓷基增强片与陶瓷涂层材料的相邻重复层之间的粘合的孔的图案。 陶瓷基增强板符合模具的形状并为模具提供结构加固。