Process for treating the interior of a hollow component
AssigneeSiemens Aktiengesellschaft
InventorNorbert Czech
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Abstract
A process for machining the interior of a hollow component for high-temperature application is described. The component has a base body made from a base material, and is in particular a blade of a gas turbine. The component has a cavity, in particular cooling channels for cooling air to flow through, which is provided with an internal coating. According to the process, a treating fluid flows through the cavity, solid particles with an abrasive action being added to the treating fluid.
Claims11
A process for treating an interior of a hollow component used in high-temperature applications, the hollow component having a base body made from at least one base material selected from the group consisting of nickel-based alloys and cobalt-based alloys, the hollow component having a cavity formed therein and lined by an internal coating, which comprises the steps of:
- introducing a treating fluid flowing through the cavity, the treating fluid having solid particles with an abrasive action, the treating fluid abrading the internal coating, and the treating fluid is selected from the group consisting of an acidic, aqueous solution and an alkaline, aqueous solution.
Dependencies are inferred from the claim text.