Title:
MANUFACTURE OF PRECISION CASTING BLADE
Document Type and Number:
Japanese Patent JP3004451
Kind Code:
B2
Abstract:
PURPOSE: To enable manufacture of a large scale precision casting blade in the manufacture of a uni-directional solidified blade or a single crystal blade used for a steam turbine or a gas turbine for air craft or for industry.
CONSTITUTION: A columnar tower is assembled with wax material so as to surround the wax pattern 2 of the blade and after refractory material is applied on the surface of the tower and dried, the wax material is melted out to form the combined mold of the blade and the columnar tower. Successively, molten metal is poured into only the mold for the blade 1 and thereafter, the combined mold of the blade and the columnar tower is taken out of a casting furnace so as to solidify the molten metal.
Inventors:
Ichiro Tsuji
Koji Takahashi
Hisataka Kawai
Takeshi Tanaka
Koichiro Kido
Koji Takahashi
Hisataka Kawai
Takeshi Tanaka
Koichiro Kido
Application Number:
JP5617092A
Publication Date:
January 31, 2000
Filing Date:
February 06, 1992
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
Komatsu Howmet Co., Ltd.
Komatsu Howmet Co., Ltd.
International Classes:
B22C9/04; B22C9/22; B22D25/02; F01D5/12; (IPC1-7): B22C9/04; B22C9/22
Domestic Patent References:
| JP57171542A | ||||
| JP5964140A | ||||
| JP6174754A |
Attorney, Agent or Firm:
Mitsuteru Soga (4 outside)