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    PRODUCTION OF MULTI-PASSAGE HOLLOW CASTING
    2.
    发明申请
    PRODUCTION OF MULTI-PASSAGE HOLLOW CASTING 审中-公开

    公开(公告)号：US20200001353A1

    公开(公告)日：2020-01-02

    申请号：US16023896

    申请日：2018-06-29

    Applicant: United Technologies Corporation

    Inventor： John Joseph Marcin ,  Steven J. Bullied ,  Santosh Ranganath

    IPC: B22C9/10 ,  B22C9/24 ,  B22C9/04 ,  B22C1/16 ,  B22C1/10

    Abstract: A method of fabricating a casting is provided. The method includes creating a mixture of ceramic powder and a binder, pouring the mixture around sacrificial patterns, executing a first thermal treatment to set the mixture into a solid mold without damaging the sacrificial patterns, executing a second thermal treatment to remove the sacrificial patterns without removing any of the binder from the solid mold, executing at least one of a third thermal treatment and a chemical treatment to remove a quantity of the binder to transform the solid mold into a solid breakaway mold and pouring molten metallic material into the solid breakaway mold.

    Multi-shot casting
    3.
    发明授权
    Multi-shot casting 有权

    公开(公告)号：US10456830B2

    公开(公告)日：2019-10-29

    申请号：US15605087

    申请日：2017-05-25

    Applicant: United Technologies Corporation

    Inventor： Steven J. Bullied ,  Dilip M. Shah ,  Alan D. Cetel ,  John J. Marcin

    IPC: B22D19/16 ,  B22D27/04 ,  F01D5/14

    Abstract: An alloy part is cast in a mold (280) having a part-forming cavity (292, 294, 296). The method comprises pouring a first alloy into the mold. The pouring causes: a surface (550) of the first alloy in the part-forming cavity to raise relative to the part-forming cavity; a branch flow of the poured first alloy to pass upwardly through a first portion (304) of a passageway; and the branch flow to pass downwardly through a second portion (310), of the passageway; solidifying some of the first alloy in the passageway to block the passageway while at least some of the first alloy in the part-forming cavity remains molten. A second alloy is poured into the mold atop the first alloy and solidified.

    METHOD TO PREVENT GAP IN CYLINDRAL SEEDS AROUND AN INTERNAL CERAMIC CORE
    4.
    发明申请
    METHOD TO PREVENT GAP IN CYLINDRAL SEEDS AROUND AN INTERNAL CERAMIC CORE 审中-公开

    公开(公告)号：US20190309438A1

    公开(公告)日：2019-10-10

    申请号：US15946090

    申请日：2018-04-05

    Applicant: United Technologies Corporation

    Inventor： Steven J. Bullied ,  Ryan C. Breneman ,  Dilip M. Shah ,  Shiela R. Woodard

    IPC: C30B11/14 ,  B22C9/24 ,  B22C9/10 ,  C30B11/00 ,  C30B29/52 ,  C30B29/66

    Abstract: A process for casting a single crystal axis-symmetric thick walled tube comprising forming a axisymmetric single crystal ring seed around a circular internal core, wherein the ring seed has an inner diameter and a taper on the inner diameter, and wherein the internal core has an outer diameter and a matching taper on the outer diameter, the matching taper matching the taper of the inner diameter of the ring seed, and the internal core being free to translate in a vertical direction relative to the ring seed; and heating the ring seed so as to expand the ring seed relative to the internal core, and allowing the circular internal core to translate relative to the ring seed in a direction of the force of gravity, thereby maintaining contact between the circular internal core and the ring seed.

    High temperature directionally solidified and single crystal die casting
    10.
    发明授权
    High temperature directionally solidified and single crystal die casting 有权
    高温定向凝固和单晶压铸

    公开(公告)号：US09545664B2

    公开(公告)日：2017-01-17

    申请号：US14220915

    申请日：2014-03-20

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Steven J. Bullied ,  John Joseph Marcin ,  Mario P. Bochiechio

    IPC: B22D17/00 ,  B22D17/22 ,  B22D15/04 ,  B22D27/04 ,  B22C9/06 ,  C30B11/14

    CPC classification number: B22D17/00 ,  B22C9/06 ,  B22D15/04 ,  B22D17/22 ,  B22D17/2218 ,  B22D27/045 ,  C30B11/14

    Abstract: A high-temperature die casting die includes a first die plate with a first recess and a second die plate with a second recess, the first and second recesses defining a main part cavity and gating. A grain selector is in fluid communication with the main cavity, and an in situ zone refining apparatus is adapted to apply a localized thermal gradient to at least one of the first and second die plates. The localized thermal gradient and the at least one die plate are movable relative to each other so as to apply the localized thermal gradient along a first direction extending from the grain selector longitudinally across the main part cavity.

    Abstract translation: 高温压铸模具包括具有第一凹部的第一模板和具有第二凹槽的第二模板，所述第一和第二凹槽限定主要部分空腔和浇口。 颗粒选择器与主腔流体连通，并且原位区精炼装置适于对第一和第二模板中的至少一个施加局部热梯度。 局部热梯度和至少一个模板相对于彼此是可移动的，以沿着从晶粒选择器纵向穿过主体腔延伸的第一方向施加局部热梯度。

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