Invention Grant
US08876978B2 Method for regenerating gas turbine blade and gas turbine blade regenerating apparatus
有权
再生燃气轮机叶片和燃气轮机叶片再生装置的方法
- Patent Title: Method for regenerating gas turbine blade and gas turbine blade regenerating apparatus
- Patent Title (中): 再生燃气轮机叶片和燃气轮机叶片再生装置的方法
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Application No.: US12865596Application Date: 2008-02-14
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Publication No.: US08876978B2Publication Date: 2014-11-04
- Inventor: Tetsuji Kawakami , Ikumasa Koshiro , Rumi Haruna , Yoshitaka Uemura
- Applicant: Tetsuji Kawakami , Ikumasa Koshiro , Rumi Haruna , Yoshitaka Uemura
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Heavy Industries, Ltd.
- Current Assignee: Mitsubishi Heavy Industries, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Lowe Hauptman & Ham, LLP
- International Application: PCT/JP2008/052417 WO 20080214
- International Announcement: WO2009/101690 WO 20090820
- Main IPC: C23G1/02
- IPC: C23G1/02 ; C23G1/14 ; C23G3/00 ; B08B3/08 ; B08B3/10 ; C23F1/44 ; F01D5/00
Abstract:
An object is to reduce changes in mechanical properties of a gas turbine blade base material during repair or regeneration of a gas turbine blade. For this purpose, a gas turbine blade after being operated is washed by being immersed into a strong alkaline washing solution, and the gas turbine blade after being washed with the strong alkaline washing solution is washed with water. The gas turbine blade after being washed with water is then washed by being immersed into a weak acid washing solution, and the gas turbine blade after being washed with the weak acid washing solution is subjected to heat treatment. The gas turbine blade after the heat treatment is then immersed into a strong acid washing solution, whereby the coating formed on the surface of the gas turbine blade is removed.
Public/Granted literature
- US20100326466A1 METHOD FOR REGENERATING GAS TURBINE BLADE AND GAS TURBINE BLADE REGENERATING APPARATUS Public/Granted day:2010-12-30
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