Segment of an abradable ring seal for a turbomachine, and process for the manufacture of such a piece
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United States of America Patent
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Mar 7, 2017
Grant Date -
Dec 18, 2014
app pub date -
Jun 12, 2014
filing date -
Jun 13, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A segment of an abradable ring seal for a turbomachine, includes: a reinforcing support; a composite fabric including fibers impregnated with polymerized resin, and a track of abradable material. The composite fabric is interposed between the reinforcing support 71 and the track of abradable material and is bonded to the reinforcing support, on the one side, and to the track of abradable material, on the other side. The segment of an abradable ring seal has a resistance to tearing in a direction perpendicular to the interface between the track of abradable material and the composite fabric, on the one hand, and between the composite fabric and the reinforcing support, on the other hand, greater than 5.106 newtons per square meter. A process for the manufacture of such a segment is also described.
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