Title:
マスキング用囲いで部分的にマスクされたガスタービン翼を気相アルミナイド処理する方法
Document Type and Number:
Japanese Patent JP4279104
Kind Code:
B2
Abstract:
Gas turbine blade (20) is selectively protected by providing gas turbine blade, providing masking enclosure (50) having airfoil enclosure (52) and dovetail enclosure (54), placing the gas turbine blade into masking enclosure to form aluminiding assembly (88), and vapor-phase aluminiding the aluminiding assembly with gas turbine blade. Selective protection of gas turbine blade comprises: providing gas turbine blade having airfoil (22), shank (24) with dovetail (26), and platform (28) having top and bottom surfaces (30, 32); providing masking enclosure having airfoil enclosure and dovetail enclosure; placing the gas turbine blade into masking enclosure to form aluminiding assembly; and vapor-phase aluminiding the aluminiding assembly with gas turbine blade having its airfoil and dovetail in the masking enclosure so that aluminum is deposited on exposed portion of the gas turbine blade that is not in the masking enclosure. The airfoil enclosure has top seal plate (60) with top opening (62). It is sized to receive the airfoil of the gas turbine blade. The airfoil extends through the top opening, and the top seal plate contacts the top surface of the platform. The dovetail enclosure includes dovetail guide (70) that receives lower end (72) of the dovetail, and bottom seal plate (74) with bottom opening (76). The bottom seal plate is sized to fit around the shank.
More Like This:
Inventors:
Niger Bryan Thomas Langley
Kwok Heng You
Kwok Heng You
Application Number:
JP2003333734A
Publication Date:
June 17, 2009
Filing Date:
September 25, 2003
Export Citation:
Assignee:
GE Aviation Services Operations (Private) Limited
International Classes:
F02C7/00; C23C10/04; C23C14/14; F01D5/28; F01D25/00
Domestic Patent References:
| JP5493657A | ||||
| JP200027602A | ||||
| JP200247567A | ||||
| JP2001205153A | ||||
| JP2000192258A | ||||
| JP8225959A |
Foreign References:
| US5565035 | ||||
| US4530861 |
Attorney, Agent or Firm:
Kenichi Matsumoto
Hirokazu Ogura
Nobukazu Ito
Hirokazu Ogura
Nobukazu Ito