Effective cleaning method for turbine airfoils

Details Effective cleaning method for turbine airfoils Effective cleaning method for turbine airfoils

1994-05-02

1996-11-19

Warden, Jill

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 2219, 134 26, 134 28, C23G 102, B08B 310, B08B 9093

Patent

active

055758584

ABSTRACT:
A cleaning method for gas turbine engine airfoils includes a step of autoclave process cleaning and a step of chelating agent solution cleaning. The cleaning method also includes water rinsing after the autoclave cleaning and after the chelating agent solution cleaning. A subsequent step of high pressure water jet spray removes the debris. The cleaning method of the present invention significantly reduces the number of cleaning cycles required to clean the airfoils.

REFERENCES:
patent: 3291640 (1966-12-01), Livingston
patent: 3951681 (1976-04-01), Shoemaker et al.
patent: 4317685 (1982-03-01), Ahuja et al.
patent: 4439241 (1984-03-01), Ault et al.
patent: 4713120 (1987-12-01), Hodgens, II et al.

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