中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.022 seconds)

    MULTI-SHOT CASTING
    2.
    发明申请
    MULTI-SHOT CASTING 审中-公开
    多发铸造

    公开(公告)号：WO2014093826A3

    公开(公告)日：2014-11-13

    申请号：PCT/US2013075017

    申请日：2013-12-13

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BULLIED STEVEN J ,  SHAH DILIP M ,  CETEL ALAN D ,  MARCIN JOHN J

    IPC: B22D19/16

    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。

    STRESS RELIEF OF SINGLE CRYSTAL SUPERALLOY ARTICLES
    3.
    发明专利
    STRESS RELIEF OF SINGLE CRYSTAL SUPERALLOY ARTICLES 未知

    公开(公告)号：CA1299070C

    公开(公告)日：1992-04-21

    申请号：CA539121

    申请日：1987-06-08

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HENRICKS ROBERT J ,  MARCIN JOHN J ,  WAHL JACQUELINE B ,  PINKOWISH ALEXANDER A

    IPC: C22F1/10 ,  C22F1/00 ,  C23F1/00 ,  C30B33/00 ,  F01D5/28 ,  F02C3/06 ,  C30B29/52

    Abstract: Stress Relief of Single Crystal Superalloy Articles A coated nickel base superalloy single crystal turbine airfoil blade (1), which is subject to gas turbine engine operation, can crack during refurbishment by a stress corrosion mechanism when exposed to certain corrosive media. The rapid thermal cycling that occurs during typical gas turbine engine operation results in high, non-uniform stresses across the airfoil, producing large localized residual strains in the article at ambient temperatures. Exposure to a corrosive environment, such as during coating removal or agressive cleaning, can produce chordwise cracks in a large number of the airfoils exposed. Such cracking is avoided by subjecting the articles to a preliminary stress relieving heat treatment which reduces the residual strains to a level below which cracking will not occur, prior to exposure to the corrosive media.

    MULTI-SHOT CASTING
    4.
    发明专利
    MULTI-SHOT CASTING 未知

    公开(公告)号：SG11201503471RA

    公开(公告)日：2015-06-29

    申请号：SG11201503471R

    申请日：2013-12-13

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BULLIED STEVEN J ,  SHAH DILIP M ,  CETEL ALAN D ,  MARCIN JOHN J

    IPC: B22D19/16

    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.

    7.
    发明专利
    未知

    公开(公告)号：AT451985T

    公开(公告)日：2010-01-15

    申请号：AT05254747

    申请日：2005-07-28

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： MARCIN JOHN J

    IPC: B22C9/10 ,  B22C9/04 ,  B22D29/00 ,  F01D5/18

    Abstract: An article may be manufactured by providing a reticulate core element (456) in a mold shell having a shape at least partially corresponding to a shape of the article. The molten metallic material is introduced to the shell so as to at least partially infiltrate into the reticulate core element (456). The molten metallic material is permitted to solidify. The shell and the reticulate core element (456) are destructively removed. The removal leaves the article with one or more gas-permeable porous regions.

    MULTI-SHOT CASTING
    9.
    发明专利
    MULTI-SHOT CASTING 未知

    公开(公告)号：SG10201610144XA

    公开(公告)日：2017-01-27

    申请号：SG10201610144X

    申请日：2013-12-13

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BULLIED STEVEN J ,  SHAH DILIP M ,  CETEL ALAN D ,  MARCIN JOHN J

    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.

Patent Agency Ranking