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.