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公开(公告)号:US20150328681A1
公开(公告)日:2015-11-19
申请号:US14651926
申请日:2013-12-13
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor: Steven J. Bullied , Dilip M. Shah , Alan D. Cetel , John J. Marcin
CPC classification number: B22D19/16 , B22D27/045 , F01D5/147 , F05D2230/211
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.
Abstract translation: 合金部件铸造在具有部分形成腔体(292,294,296)的模具(280)中。 该方法包括将第一合金倒入模具中。 浇注原因:部件形成腔中的第一合金的表面(550)相对于部件形成腔体升高; 倾倒的第一合金的分支流向上通过通道的第一部分(304); 并且所述分支流向下通过所述通道的第二部分(310); 固化通道中的一些第一合金以阻挡通道,同时部件形成空腔中的至少一些第一合金保持熔融。 将第二合金倒入第一合金顶部的模具中并固化。
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公开(公告)号:US10830357B2
公开(公告)日:2020-11-10
申请号:US14695981
申请日:2015-04-24
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor: Michael G. McCaffrey , Jeffrey M. Wittman , Dilip M. Shah , Alan D. Cetel , Timothy M. Davis , Mark J. Rogers
Abstract: The present disclosure relates to advanced materials, particularly single crystal grain structures including the formation of single crystal grain structures. Single crystal grain structures offer improved mechanical properties when used with individual components. Improving mechanical properties is favorable for components that are used in applications with high temperature, pressure, and stress. In these applications, mechanical failure is extremely undesirable. Individual components, such as seals, can be designed with a single crystal grain structure in a preferred direction. By selecting a preferred direction, and orienting the single crystal grain structure accordingly, the single crystal grain structure can improve the component's mechanical properties. Single crystal grain structure seals and the method of forming the seals, therefore, offer various improvements to individual components, specifically when the components are designed for high temperature, pressure, and stress applications.
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公开(公告)号:US10682691B2
公开(公告)日:2020-06-16
申请号:US15608735
申请日:2017-05-30
Applicant: United Technologies Corporation
Inventor: John Joseph Marcin , Dilip M. Shah
Abstract: Shot sleeves for high temperature die casting include a low modulus single crystal nickel-based alloy having less than 1 ppm sulfur, a low modulus single crystal nickel-based alloy doped with a sulfur active element, a low modulus single crystal nickel-based alloy having a protective oxide coating, or a combination of two or more of the foregoing.
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公开(公告)号:US10576537B2
公开(公告)日:2020-03-03
申请号:US16267900
申请日:2019-02-05
Applicant: United Technologies Corporation
Inventor: Steven J. Bullied , Dilip M. Shah , Alan D. Cetel , John J. Marcin, Jr.
Abstract: A casting mold has a pour cone, a downsprue, and a part-forming cavity having a lower end and an upper end. The downsprue extends from the pour cone toward the part-forming cavity and has: a lower portion having a plurality of ports in communication with the part-forming cavity; and an upper portion telescoping relative to the lower portion and coupling the lower portion to the pour cone.
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公开(公告)号:US10369625B2
公开(公告)日:2019-08-06
申请号:US14731768
申请日:2015-06-05
Applicant: United Technologies Corporation
Inventor: Dilip M. Shah , Paul D. Genereux , Alan D. Cetel , John J. Marcin, Jr. , Steven J. Bullied , Mario P. Bochiechio , Kevin W. Schlichting , Bradford A. Cowles , Carl R. Verner , David U. Furrer , Venkatarama K. Seetharaman
IPC: B22D27/04 , B22D7/04 , B22D27/13 , C30B11/14 , F01D5/02 , F01D5/28 , F01D25/00 , F23R3/00 , C30B13/34 , C30B15/36 , C30B29/52 , C30B29/60 , B22D19/00 , B22D21/02 , B22D25/02 , C22C19/03 , F01D11/08 , F01D25/24 , F01D5/14 , F01D5/34
Abstract: A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.
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公开(公告)号:US10287896B2
公开(公告)日:2019-05-14
申请号:US14916310
申请日:2014-08-13
Applicant: United Technologies Corporation
Inventor: John J. Marcin, Jr. , Steven J. Bullied , Dilip M. Shah , Alan D. Cetel
IPC: F01D5/28 , F01D5/14 , B23K20/02 , B23K101/00 , B23K103/08
Abstract: A blade (60; 60-2) comprises an airfoil (61) and an attachment root (63). The blade has a tipward zone (80; 80-2; 80-2, 81) and a rootward zone (82; 82-2, 81; 82). The rootward zone has a single crystal structure. The tipward zone has a single crystal structure. The crystalline orientations of the rootward zone and tipward zone are at least 15° out of registry with each other.
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27.
公开(公告)号:US20180345360A1
公开(公告)日:2018-12-06
申请号:US15608735
申请日:2017-05-30
Applicant: United Technologies Corporation
Inventor: John Joseph Marcin , Dilip M. Shah
Abstract: Shot sleeves for high temperature die casting include a low modulus single crystal nickel-based alloy having less than 1 ppm sulfur, a low modulus single crystal nickel-based alloy doped with a sulfur active element, a low modulus single crystal nickel-based alloy having a protective oxide coating, or a combination of two or more of the foregoing.
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公开(公告)号:US20170306782A1
公开(公告)日:2017-10-26
申请号:US15137503
申请日:2016-04-25
Applicant: United Technologies Corporation
Inventor: Dilip M. Shah , Katelyn Kwoka , Alan D. Cetel , Venkatarama K. Seetharaman , Michael G. McCaffrey
CPC classification number: F01D11/08 , F01D5/12 , F01D9/041 , F01D11/005 , F01D25/005 , F01D25/12 , F05D2220/32 , F05D2230/00 , F05D2240/56 , F05D2300/175 , F05D2300/177 , F05D2300/506 , F16J15/3288 , F16J15/3292
Abstract: An embodiment of a turbine assembly includes, among other possible things, a first component including a first component surface, a second component including a second component surface spaced apart from the first component surface, and a brush seal disposed between the first component and the second component. The brush seal includes, among other things, a first bristled region extending in a first direction from a backing plate, and sealingly engaging one of the first component surface and the second component surface. At least one of the backing plate and the first bristled region includes a nickel-based superalloy material having at least 40% of a Ni3(Al,X) precipitate phase, X being a metallic or refractory element other than Al.
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公开(公告)号:US20170259330A1
公开(公告)日:2017-09-14
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
CPC classification number: B22D19/16 , B22D27/045 , F01D5/147 , F05D2230/211
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.
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公开(公告)号:US09687910B2
公开(公告)日:2017-06-27
申请号:US14651926
申请日:2013-12-13
Applicant: United Technologies Corporation
Inventor: Steven J. Bullied , Dilip M. Shah , Alan D. Cetel , John J. Marcin
CPC classification number: B22D19/16 , B22D27/045 , F01D5/147 , F05D2230/211
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.
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