Method of manufacture of material reinforced with a three-dimensional textile structure
First Claim
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1. A method of manufacture of material reinforced with a three-dimensional textile structure, wherein said method consists:
- (a) in realizing densified layers of fibers,(b) in forming a stack of layers from said fibers provided with holes and so arranged that the fibers of said layers extend within said stack in at least two directions designated as first and second directions which define the plane of the layers and that said holes form within said stack passages which extend in a third direction, each passage having a given dimension,(c) in implanting in said passages rods constituted by an assembly of densified fibers, said rods extending in the third direction,(d) in increasing the density of the assembly thus obtained.
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Abstract
The method consists in realizing densified layers of fibers, in forming a stack with said layers of fibers provided with holes and so arranged that the fibers of the layers extend within the stack in at least two directions designated as first and second directions which define the plane of the layers and that the holes form passages within the stack in a third direction, in implanting in said passages fibers which extend in the third direction, and in increasing the density of the assembly, for example by filling the gaps of the structure with a resin or a carbon matrix.
32 Citations
13 Claims
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1. A method of manufacture of material reinforced with a three-dimensional textile structure, wherein said method consists:
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(a) in realizing densified layers of fibers, (b) in forming a stack of layers from said fibers provided with holes and so arranged that the fibers of said layers extend within said stack in at least two directions designated as first and second directions which define the plane of the layers and that said holes form within said stack passages which extend in a third direction, each passage having a given dimension, (c) in implanting in said passages rods constituted by an assembly of densified fibers, said rods extending in the third direction, (d) in increasing the density of the assembly thus obtained. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of manufacture of material reinforced with a three-dimension textile structure, wherein said method consists:
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(a) in realizing densified layers of fibers by one of the means consisting of impregnating said layers of fibers with a polymerizable resin and then polymerizing said resin to a partial extent, and impregnating said layers of fibers with a pyrolyzable resin and then pyrolyzing said resin to a partial extent, (b) in forming calibrated rods constituted by an assembly of densified parallel fibers held together by means of a prepolymerized resin, (c) in forming a stack with said layers of fibers, said layers being provided with holes and so arranged that the fibers of said layers extend within said stack in at least two directions designated as first and second directions, which define the plane of the layers and that said holes form within said stack passages which extend in a third direction, each passage having a given diameter, (d) in implanting said rods in said passages, said rods being calibrated to the diameter of the passages, whereby the latters are completely filled by the rods, to define a three-dimensional assembly, and (e) densifying this assembly by one of the means consisting of impregnating the assembly with a polymerizable resin and then polymerizing said resin, impregnating the assembly with a pyrolyzable resin and then pyrolyzing said resin, and depositing pyrolytic carbon from a flow of gaseous hydrocarbon.
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Specification