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US 6,470,568 B2Granted
Method for repairing a gas turbine component
AssigneeAlstom (Switzerland) Ltd
InventorsReinhard Fried, Andreas Bögli
Life of this patent
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Abstract
In a soldering process for treating tears, recesses, or other material defects in the surface of thermally and mechanically highly stressed components of gas turbines, a nickel foam is applied together with the soldering powder, which can also be mixed with another filler. After this, a heat treatment of the soldering process is performed.
Claims14
A soldering method for repairing tears and material defects in a surface of thermally and mechanically highly stressed components comprising a base material, the method comprising the steps of:
- (a) applying an open-celled metallic foam having pores to the tear or material defect;
- (b) introducing a soldering powder into the pores of the metallic foam;
- and
- (c) heating the powder containing foam to a temperature which is above the melting temperature of the soldering powder.
1 more element
Dependencies are inferred from the claim text.