Method of fitting an impingement plate
AssigneeAlstom (Switzerland) Ltd
InventorsReinhard Fried, Richard London, Peter Marx
Life of this patent
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Abstract
A method of fitting an impingement plate to a platform of a guide blade of a gas turbine. The impingement plate is first fastened at individual spots by spot welds to at least one supporting surface of the platform and is then brazed at the supporting surface to the platform. The impingement plate is prefabricated with recesses and the spot welds are executed at the recesses.
Claims5
A method of fitting an impingement plate to a platform of a guide blade of a gas turbine, the impingement plate being fastened to at least one supporting surface by means of spot welds and then being brazed onto the supporting surface to the platform by means of high-temperature brazing at a brazing gap, and the impingement plate having cooling holes, wherein the impingement plate is prefabricated with recesses and the spot welds are executed at the recesses.
Dependencies are inferred from the claim text.