Process for manufacturing a thermostructural composite by chemical vapor deposition using linking threads
AssigneeSociete Europeenne de Propulsion
InventorsMichel Vives, Jean L. Limousin
Life of this patent
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Abstract
A fibrous preform (10) of the component to be manufactured is conformed in the desired shape with the desired degree of compacting, prior to densification by chemical vapor deposition. The conformation is achieved by linking the preform (10) onto a rigid shaping device (12) by threads (30) that traverse the preform (10) and pass through holes (14) in the shaping device. The linking threads (30) are made of carbon or ceramic. Prior to the linking, a covering layer (16) may be arranged on the face of the preform (10) opposite to the one turned towards the shaping device.
Claims12
A process for the manufacture of a thermostructural composite material component consisting of a fibrous preform densified by a matrix, said process comprising the steps of producing said fibrous preform, configuring said preform to maintain said preform in a desired shape and with a desired degree of compacting, by linking said preform onto a rigid shaping device by way of threads traversing said preform and passing through holes in said shaping device to form a configured preform and densifying said configured preform by a chemical vapor infiltration of a material constituting said matrix.
Dependencies are inferred from the claim text.