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    NUCLEOS Y METODOS DE FUNDICION A LA CERA PERDIDA.
    31.
    发明专利
    NUCLEOS Y METODOS DE FUNDICION A LA CERA PERDIDA. 未知

    公开(公告)号：MXPA05011652A

    公开(公告)日：2006-05-04

    申请号：MXPA05011652

    申请日：2005-10-28

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BEALS JAMES T

    IPC: B22C9/00

    Abstract: Se forma un patron de fundicion a la cera perdida al conformar un primer elemento de nucleo metalico que incluye por lo menos un rebajo. El primer elemento de nucleo se acopla a por lo menos un coincidente de un elemento del troquel y un segundo elemento de nucleo. El rebajo sirve para retener al primer elemento de nucleo en relacion al coincidente. Se ensambla un troquel y se introduce un material de sacrificio al troquel para incrustar por lo menos parcialmente el primer elemento de nucleo. El rebajo se puede preformar antes del corte del primer elemento de nucleo a partir de una lamina mas grande de material.

    EROSION RESISTANT AND HYDROPHOBIC ARTICLE
    34.
    发明专利
    EROSION RESISTANT AND HYDROPHOBIC ARTICLE 未知

    公开(公告)号：SG11201405223RA

    公开(公告)日：2014-10-30

    申请号：SG11201405223R

    申请日：2013-02-23

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： SCHMIDT WAYDE R ,  BEALS JAMES T ,  NARDI AARON T

    IPC: B23H7/22

    Abstract: A gas turbine engine includes an airfoil having a core that has a first hardness and a surface on the core. The surface includes a plurality of geometric features that have a second, greater hardness. The geometric features define a surface porosity by area percent and a corresponding surface solidity by area percent. The surface includes a ratio of the surface solidity divided by the surface porosity that is 1.8 or greater. The geometric features and the ratio establish the surface to be hydrophobic, and the second, greater hardness and the ratio establish an erosion rate of the surface that is equal to or less than an erosion rate of the core under identical erosion conditions.

    37.
    发明专利
    未知

    公开(公告)号：DE602004025779D1

    公开(公告)日：2010-04-15

    申请号：DE602004025779

    申请日：2004-10-15

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BEALS JAMES T ,  LOPES JOSE ,  DRAPER SAMUEL D ,  MURRAY STEPHEN D ,  SPANGLER BRANDON W

    IPC: B22C9/10 ,  F01D5/18 ,  B22C1/00 ,  B22C7/02 ,  B22C9/04 ,  B22C21/14 ,  F01D5/28 ,  F01D9/02 ,  F01D25/00 ,  F02C7/00

    Abstract: In accordance with the present invention, a casting system is provided which broadly comprises a core (10) and a wax die (12) spaced from said core (10), a refractory metal core (14) having a first end seated within a slot (18) in the core (10) and a second end contacting the wax die (12) for positioning the core (10) relative to the wax die (12), and the refractory metal core having at least one of a mechanism for providing spring loading when closed in the wax die and a mechanism for mechanically locking the wax die to the core. The spring loading mechanism may comprise one or more spring tabs (20). The locking mechanism may comprise an end (32) of the refractory metal core (14') engaging a slot (34) in the wax die (12') (Fig 2).

    38.
    发明专利
    未知

    公开(公告)号：DE60323181D1

    公开(公告)日：2008-10-09

    申请号：DE60323181

    申请日：2003-06-10

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： SHAH DILIP M ,  BEALS JAMES T ,  PIETRUSKA NORMAN ,  SZELA EDWARD R

    IPC: B23K9/04 ,  B23P6/04 ,  B23K10/02 ,  B23K26/34 ,  B23K37/06 ,  B23P6/00 ,  C23C28/00 ,  F01D5/00 ,  F01D5/18 ,  F01D5/28 ,  F02C7/00

    Abstract: The present invention relates to a method for repairing components such as blades used in turbine engines. The method comprises the steps of placing a piece of refractory metal material (16) over an area of the component to be repaired (12) and depositing a repair filler metal material (20) over the piece of refractory material (16) in an amount sufficient to repair the component and welding the repair filler metal material (20) in place. The refractory metal material (16) may be selected from the group consisting of niobium, tantalum, molybdenum, tungsten, a metal having a melting point higher than the melting point of nickel, and alloys thereof and may be uncoated or coated.

    40.
    发明专利
    未知

    公开(公告)号：AT406230T

    公开(公告)日：2008-09-15

    申请号：AT03253664

    申请日：2003-06-10

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： SHAH DILIP M ,  BEALS JAMES T ,  PIETRUSKA NORMAN ,  SZELA EDWARD R

    IPC: B23K9/04 ,  B23P6/04 ,  B23K10/02 ,  B23K26/34 ,  B23K37/06 ,  B23P6/00 ,  C23C28/00 ,  F01D5/00 ,  F01D5/18 ,  F01D5/28 ,  F02C7/00

    Abstract: The present invention relates to a method for repairing components such as blades used in turbine engines. The method comprises the steps of placing a piece of refractory metal material (16) over an area of the component to be repaired (12) and depositing a repair filler metal material (20) over the piece of refractory material (16) in an amount sufficient to repair the component and welding the repair filler metal material (20) in place. The refractory metal material (16) may be selected from the group consisting of niobium, tantalum, molybdenum, tungsten, a metal having a melting point higher than the melting point of nickel, and alloys thereof and may be uncoated or coated.

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