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272 条记录 (耗时 0.021 秒)

    METHOD FOR PRODUCING SHAFT, AND CASTING MOLD ASSEMBLY
    104.
    发明公开
    METHOD FOR PRODUCING SHAFT, AND CASTING MOLD ASSEMBLY 审中-公开

    公开(公告)号：EP3895826A1

    公开(公告)日：2021-10-20

    申请号：EP19895146.9

    申请日：2019-06-10

    申请人： Nishioka Malleable Iron Ind. Co., Ltd.

    发明人： NISHIOKA Manabu

    IPC分类号： B22C9/10 ,  B22C9/24 ,  B23B1/00

    摘要： A mold assembly having a first split core mold configured to form a casting surface of a casting hole, a second split core mold configured to form the periphery of the casting hole, and a main mold is prepared. The first split core mold is fitted into the second split core mold. Then, the second split core mold is fitted into the main mold. A shaft (10) is cast by pouring molten metal into the mold assembly. Aperipheral wall portion (12A) of the shaft (10) is held by a main spindle stock (30A) (holding device) of a lathe (30). A predetermined portion (10A) of the shaft (10) is turned by setting an outer surface of the peripheral wall portion (12A) as a reference surface. Then, the predetermined portion (10A) is held by the main spindle stock (30A) of the lathe (30) so that a part of the shaft (10) other than the predetermined portion (10A) is turned by setting an outer surface of the predetermined portion (10A) as a reference surface.

    METAL CASTING WITH CORES
    105.
    发明公开
    METAL CASTING WITH CORES 审中-公开

    公开(公告)号：EP3827911A1

    公开(公告)日：2021-06-02

    申请号：EP20208614.6

    申请日：2020-11-19

    申请人： Nemak, S.A.B. de C.V.

    发明人： Martinez Dominguez, Cesar Benjamin ,  Zhao, Qingsong ,  Fan, Dongxu

    IPC分类号： B22C7/06 ,  B22C9/10 ,  B22C21/14 ,  B22C9/24

    摘要： The invention relates to a method for producing a core (10) to be used in metal casting of a metal component having a cavity structure, the core (10) at least partially defining the cavity structure in the metal component, wherein the method comprises: placing a venting element (1) in a core box; and forming the core (10) at least partially around the venting element (1), such that the venting element (1) is integrated in the core (10) and establishes a hollow passage in the core (10). The invention also relates to a core for metal casting, to a method for metal casting and to a casting mold arrangement (20) for metal casting.

    VANE CORE ASSEMBLIES AND METHODS
    107.
    发明公开
    VANE CORE ASSEMBLIES AND METHODS 审中-公开

    公开(公告)号：EP3730742A1

    公开(公告)日：2020-10-28

    申请号：EP20169674.7

    申请日：2020-04-15

    申请人： Raytheon Technologies Corporation

    发明人： MADONNA, Nicholas J. ,  PREUSS, Daniel P. ,  ANDERSON, Kristopher K.

    IPC分类号： F01D9/06 ,  B22C9/10 ,  B22C9/24

    摘要： The present invention relates to a gas turbine engine (20) including a turbine section (28) having a vane assembly (76) including a radially outer platform (168), a radially inner platform (170) and a first airfoil (66) extending between the radially outer platform (168) and the radially inner platform (170). A rail (172) extends radially inward from the inner platform (170). The vane assembly (76) comprises a connected passage (191) mutually formed by and including an airfoil passage (192) within the first airfoil (66), a platform passage (193) located within the inner platform (170) and a rail passage (194) located within the rail (172). This structure allows for a specific control of relative cooling for the different section of the turbine vane and enables to form the connected passage by use of a single core (195).

    INVESTMENT CASTING PIN AND METHOD OF USING SAME
    108.
    发明公开
    INVESTMENT CASTING PIN AND METHOD OF USING SAME 审中-公开

    公开(公告)号：EP3693098A1

    公开(公告)日：2020-08-12

    申请号：EP20156298.0

    申请日：2020-02-10

    申请人： United Technologies Corporation

    发明人： BULLIED, Steven J. ,  BEERS, Russell A. ,  BOCHIECHIO, Mario P.

    IPC分类号： B22C1/00 ,  B22C7/02 ,  B22C9/04 ,  B22C9/10 ,  B22C9/24 ,  B22C21/14

    摘要： A method of forming a component by investment casting includes disposing at least a portion of an investment casting pin (200) within a core (300). The investment casting pin (200) includes a ceramic base pin (202) having a perimeter (206) and a length (208) extending perpendicular to the perimeter (206) and a sacrificial coating (204) disposed about the perimeter (206) of the ceramic base pin (202) along at least a portion of the length (208) of the ceramic base pin (202). A metal casting (40) is formed around the core (300). The core (300) and the sacrificial coating (204) are leached with a leaching solution and the investment casting pin (208) is removed from the metal casting (40).

    METHOD FOR FORMING COOLING HOLES HAVING SEPARATE COMPLEX AND SIMPLE GEOMETRY SECTIONS
    110.
    发明公开
    METHOD FOR FORMING COOLING HOLES HAVING SEPARATE COMPLEX AND SIMPLE GEOMETRY SECTIONS 审中-公开

    公开(公告)号：EP3610967A1

    公开(公告)日：2020-02-19

    申请号：EP19190830.0

    申请日：2019-08-08

    申请人： United Technologies Corporation

    发明人： LAMSON, Scott H.

    IPC分类号： B22C7/02 ,  B22C9/24

    摘要： A gas turbine part with a cooling hole, is fabricated by first forming a model of a wall of a gas turbine part. The wall is defined by first and second surfaces (104, 106), the first surface (104) having an aperture indentation (108) possessing a complex geometry and extending into but not all the way through the wall of the gas turbine part. A mold (110, 114) of the wall of the gas turbine part is formed using the model and is used to cast the wall of the gas turbine part by lost-material casting. A passage (120) is drilled through the resulting casting. This passage (120) extends from the aperture indentation (108) in the first surface (104) through to the second surface (106).