发明授权
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
- 专利标题： Method for regenerating gas turbine blade and gas turbine blade regenerating apparatus
- 专利标题（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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申请号： US12865596申请日： 2008-02-14
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公开(公告)号： US08876978B2公开(公告)日： 2014-11-04
- 发明人: Tetsuji Kawakami , Ikumasa Koshiro , Rumi Haruna , Yoshitaka Uemura
- 申请人： Tetsuji Kawakami , Ikumasa Koshiro , Rumi Haruna , Yoshitaka Uemura
- 申请人地址： JP Tokyo
- 专利权人： Mitsubishi Heavy Industries, Ltd.
- 当前专利权人： Mitsubishi Heavy Industries, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Lowe Hauptman & Ham, LLP
- 国际申请： PCT/JP2008/052417 WO 20080214
- 国际公布： WO2009/101690 WO 20090820
- 主分类号： C23G1/02
- IPC分类号： C23G1/02 ; C23G1/14 ; C23G3/00 ; B08B3/08 ; B08B3/10 ; C23F1/44 ; F01D5/00
摘要：
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.
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