Title:
精密インベストメント鋳造用コア
Document Type and Number:
Japanese Patent JP4137593
Kind Code:
B2
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.
Inventors:
Dirip M. Shah
James Thompson Beers
John Joseph Martin, Junior
Stephane Douglas Murray
James Thompson Beers
John Joseph Martin, Junior
Stephane Douglas Murray
Application Number:
JP2002309155A
Publication Date:
August 20, 2008
Filing Date:
October 24, 2002
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORPORATION
International Classes:
B22C9/04; B22C9/10; B22C9/24; B22C21/14; B22D29/00
Domestic Patent References:
| JP10080747A | ||||
| JP2000246392A |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Tomioka Kiyoshi
Tomioka Kiyoshi