公开(公告)号：JP2003181599A

公开(公告)日：2003-07-02

申请号：JP2002309155

申请日：2002-10-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHAH DILIP M ,  THOMPSON BEALS JAMES ,  MARCIN JOHN JOSEPH JR ,  MURRAY STEPHEN DOUGLAS

IPC: B22C9/04 ,  B22C9/10 ,  B22C9/24 ,  B22C21/14 ,  B22D29/00

Abstract: PROBLEM TO BE SOLVED: To provide a core for investment casting capable of manufacturing the core thinner than a present ceramic core and having improved mechanical characteristics. SOLUTION: The core is a composite article including a heat resistant metal element and a ceramic element. The heat resistant metal element is provided so as to improve the mechanical characteristics of the core or to allow the core having a shape and a shape dimension which cannot be obtained by the other method. In one embodiment, the overall core can be formed of the heat resistant metal constituting element. The core can be used for investment-casting a gas turbine superhard alloy constituting element. COPYRIGHT: (C)2003,JPO

公开(公告)号：CA2408815A1

公开(公告)日：2003-04-24

申请号：CA2408815

申请日：2002-10-18

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BEALS JAMES THOMPSON ,  MARCIN JOHN JOSEPH JR ,  SHAH DILIP M ,  MURRAY STEPHEN DOUGLAS

IPC: B22C9/04 ,  B22C9/10 ,  B22C9/24 ,  B22C21/14 ,  B22D29/00 ,  B22C1/08

Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite which include refractory metal elements (200) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.

公开(公告)号：CA2408815C

公开(公告)日：2008-02-12

申请号：CA2408815

申请日：2002-10-18

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MARCIN JOHN JOSEPH JR ,  MURRAY STEPHEN DOUGLAS ,  BEALS JAMES THOMPSON ,  SHAH DILIP M

IPC: B22C1/08 ,  B22C9/04 ,  B22C9/10 ,  B22C9/24 ,  B22C21/14 ,  B22D29/00

Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite which include refractory metal elements (200) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.

公开(公告)号：DE60239112D1

公开(公告)日：2011-03-17

申请号：DE60239112

申请日：2002-10-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHAH DILIP M ,  THOMPSON BEALS JAMES ,  MARCIN JOHN JOSEPH JR ,  MURRAY STEPHEN DOUGLAS

IPC: B22C9/10 ,  B22C9/04 ,  B22C9/24 ,  B22C21/14 ,  B22D29/00 ,  F01D5/18 ,  F01D9/02

公开(公告)号：DE60224631T2

公开(公告)日：2008-12-24

申请号：DE60224631

申请日：2002-10-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHAH DILIP M ,  MARCIN JOHN JOSEPH JR ,  THOMPSON BEALS JAMES ,  MURRAY STEPHEN DOUGLAS

IPC: B22C9/10 ,  B22C9/04 ,  B22C9/24 ,  B22C21/14 ,  B22D29/00

Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite and include refractory metal elements (200,202,204,206,208,210,212,214,216) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.

公开(公告)号：DE60224631D1

公开(公告)日：2008-03-06

申请号：DE60224631

申请日：2002-10-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHAH DILIP M ,  MARCIN JOHN JOSEPH JR ,  THOMPSON BEALS JAMES ,  MURRAY STEPHEN DOUGLAS

IPC: B22C9/10 ,  B22C9/04 ,  B22C9/24 ,  B22C21/14 ,  B22D29/00

Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite and include refractory metal elements (200,202,204,206,208,210,212,214,216) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.

公开(公告)号：AT383918T

公开(公告)日：2008-02-15

申请号：AT02257358

申请日：2002-10-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHAH DILIP M ,  MARCIN JOHN JOSEPH JR ,  THOMPSON BEALS JAMES ,  MURRAY STEPHEN DOUGLAS

IPC: B22C9/10 ,  B22C9/04 ,  B22C9/24 ,  B22C21/14 ,  B22D29/00

Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite and include refractory metal elements (200,202,204,206,208,210,212,214,216) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.