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US 7,125,457 B2Granted
Method for removing oxide from cracks in turbine components
AssigneeGeneral Electric Company
InventorsLawrence Bernard Kool, Ann Melinda Ritter, Laurent Cretegny, Mark Dean Pezzutti, Stewart William Beitz
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Abstract
A method for removing an oxide material from a crack in a substrate, the method includes: applying a slurry paste comprising a fluoride salt to the crack; heating the slurry paste and the crack to at least a melting point of the fluoride salt to form a reaction product; and removing the reaction product.
Claims25
A method of removing oxide from a crack in a substrate, the method comprising:
- applying a slurry paste comprising a fluoride salt to the crack;
- heating the slurry paste and the crack to at least a melting point of the fluoride salt to form a reaction product;
- and
- removing the reaction product.
1 more element
A method of removing oxide from a crack in a substrate, the method comprising:
- reacting oxide in the crack by a molten fluoride salt to form a reaction product;
- and immersing the crack in a water bath to remove oxide.
A method of removing oxide from a crack in a substrate, the method comprising:
- applying a slurry paste to the crack, wherein the slurry paste comprises a fluoride salt;
- applying a vacuum to the crack;
- heating the slurry paste and the crack to at least a melting paint of the fluoride salt to form a reaction product;
- and
- removing the reaction product.
2 more elements
Dependencies are inferred from the claim text.