Fiber preform woven using two-dimensional weaving as single piece, for shelve manufacture from composite material with closed box construction for the turbine engine fan

FIELD: textile, paper.

SUBSTANCE: invention relates to a fibrous preform (100) woven as a single piece using three-dimensional weaving, intended for the shelve manufacture of a composite material with a closed box construction for a turbine engine fan. In each plane of the fiber preform, a plurality of threads are interwoven with the layers of fill yarn threads on the first, second and third sections (102, 104, 106) of the fiber preform; at the same time, there remains a closed (thread) non-interlacing zone 108 separating the first section from the second section over a certain dimension of the fiber preform length in the direction of the base between the upstream (thread) non-interlacing border (108a) and the downstream (thread) non-interlacing border (108b); and at the same time, at least one open (thread) non-interlacing zone (110) that separates the second section from the third section over a certain dimension of the fiber preform length in the direction of the base, from the (thread) non-interlacing border (110a) to the downstream (100c) fiber preform. The invention also provides a method of manufacturing a preform for a composite material shelf with a closed box construction designed for a turbine engine fan using such a fiber preform.

EFFECT: increased effectiveness of the preform.

15 cl, 23 dwg

 



 

Same patents:

FIELD: textiles, paper.

SUBSTANCE: quasi-isotropic three-dimensional preform and method of its manufacture are disclosed. The preform comprises woven elements interwoven with each other. The woven elements comprise at least two stiffeners woven integrally with it or a wall in a direction perpendicular to the plane of the woven element.

EFFECT: preform can be used in the production of fibre-reinforced composite materials.

28 cl, 5 dwg

FIELD: textiles, paper.

SUBSTANCE: present invention relates generally to seamless three-dimensional workpiece with at least one sidewall, at least in one direction, formed from a woven base material comprising at least two layers, and to a method of forming such a workpiece. The fibres in the first direction are intertwined, at least between the upper layer and the second layer so that the upper layer can be bent relative to the other layers to form after bending a solid side wall. In addition, the fibres can be intertwined between the second layer from above and the second layer so that the second layer from above can be bent relative to the other layers to form after bending a second solid sidewall perpendicular to the first solid sidewall. In addition, the workpiece can comprise separate sidewalls formed by bending the parts of the upper layer.

EFFECT: development of a novel method of weaving.

34 cl, 22 dwg

FIELD: textiles, paper.

SUBSTANCE: woven preform for fiber-reinforced composite material comprises horizontal layers of woven fabric and vertical layers of woven fabric, woven integrally with the horizontal layers. In addition, the vertical layers extend in the form of structural elements between the horizontal layers, and the horizontal layers and vertical layers form the through cells in the preform.

EFFECT: preform has a continuous annular reinforcement in each cell formed by circular weaving of weft fibers.

23 cl, 17 dwg

FIELD: process engineering.

SUBSTANCE: method of making structural part including tubular section 30 wherefrom extends structural element of composite. Proposed method comprises the following jobs: forming preform (49; 59; 69; 79; 99) including a stack of multiple superimposed layers so that layers in, at least, preform part to make structural section are secured to each other. Layers along, at least, preform another section to make section with pipe are separated to form tow opposed sheets (44; 54; 64; 68; 74; 94). Then, tube 30 is fitted between sheets of said connection section to make sheets surround the tube at least partially. Tube is connected to preform so that the tube make tubular section while preform makes structural element of structural part.

EFFECT: preset strength of mechanical joint, simplified process, smaller sizes.

6 cl, 13 dwg

FIELD: textile, paper.

SUBSTANCE: stock comprises a central part with interwoven layers, the first and second end parts with independent woven layers. Layers of the independent woven layers pass along whole length of the stock in the central part to form a 3D woven structure. The layers are woven independently from each other in the end parts to form a pile of woven fabrics. Diagonal layers are added between independent woven layers in the first and second end parts. The 3D composite structure reinforced with a woven stock comprises a central part, the first and second end parts, and also a binding material.

EFFECT: invention provides for the possibility of the structure to perceive high concentrated loads.

22 cl, 8 dwg

FIELD: textile, paper.

SUBSTANCE: when forming face fabric, only weft overlaps are formed in threads of chain warp, and when back cloth is formed, only weft overlaps are formed on threads of face warp, and diversion of face and back fabrics produced as a result of weaving from edging is done by value specified by a ratio. Face fabric on face surface forms relief in the form of crease along width of surface with subsequent repetition in at least two threads of face weft.

EFFECT: expansion of products assortment due to production of single and double sided fabrics with relief surface using warp and weft threads, differing both in linear density and by type and colour with preservation of properties set for furniture-decorative fabrics, ie required surface density, strength and change of linear dimensions after wet treatment.

2 cl, 8 dwg, 2 tbl

FIELD: electric engineering.

SUBSTANCE: invention is related to method for manufacturing of electrolysis bag, inside of which an electrode may be placed. Electrolysis bag is made by method of cloth formation with hollow core at single loom. Bag has hollow section with two separate layers of cloth. Further, at bag edges, layers of cloth are fixed together with the help of weaving sections. Bags are cut from cloth after formation. Open upper part provides for the possibility of electrode insertion inside bag.

EFFECT: simplification and cheapening of electrolysis bag manufacturing.

12 cl, 22 dwg

The invention relates to the field of the textile industry and relates to a multilayer fabric, made of weft threads and the two systems of the main threads, one of which is used to create folds with the upper and lower cuffs, fastened with the second main system along the lower flap with locking weft threads

FIELD: electric engineering.

SUBSTANCE: invention is related to method for manufacturing of electrolysis bag, inside of which an electrode may be placed. Electrolysis bag is made by method of cloth formation with hollow core at single loom. Bag has hollow section with two separate layers of cloth. Further, at bag edges, layers of cloth are fixed together with the help of weaving sections. Bags are cut from cloth after formation. Open upper part provides for the possibility of electrode insertion inside bag.

EFFECT: simplification and cheapening of electrolysis bag manufacturing.

12 cl, 22 dwg

FIELD: textile, paper.

SUBSTANCE: when forming face fabric, only weft overlaps are formed in threads of chain warp, and when back cloth is formed, only weft overlaps are formed on threads of face warp, and diversion of face and back fabrics produced as a result of weaving from edging is done by value specified by a ratio. Face fabric on face surface forms relief in the form of crease along width of surface with subsequent repetition in at least two threads of face weft.

EFFECT: expansion of products assortment due to production of single and double sided fabrics with relief surface using warp and weft threads, differing both in linear density and by type and colour with preservation of properties set for furniture-decorative fabrics, ie required surface density, strength and change of linear dimensions after wet treatment.

2 cl, 8 dwg, 2 tbl

FIELD: textile, paper.

SUBSTANCE: stock comprises a central part with interwoven layers, the first and second end parts with independent woven layers. Layers of the independent woven layers pass along whole length of the stock in the central part to form a 3D woven structure. The layers are woven independently from each other in the end parts to form a pile of woven fabrics. Diagonal layers are added between independent woven layers in the first and second end parts. The 3D composite structure reinforced with a woven stock comprises a central part, the first and second end parts, and also a binding material.

EFFECT: invention provides for the possibility of the structure to perceive high concentrated loads.

22 cl, 8 dwg

FIELD: process engineering.

SUBSTANCE: method of making structural part including tubular section 30 wherefrom extends structural element of composite. Proposed method comprises the following jobs: forming preform (49; 59; 69; 79; 99) including a stack of multiple superimposed layers so that layers in, at least, preform part to make structural section are secured to each other. Layers along, at least, preform another section to make section with pipe are separated to form tow opposed sheets (44; 54; 64; 68; 74; 94). Then, tube 30 is fitted between sheets of said connection section to make sheets surround the tube at least partially. Tube is connected to preform so that the tube make tubular section while preform makes structural element of structural part.

EFFECT: preset strength of mechanical joint, simplified process, smaller sizes.

6 cl, 13 dwg

FIELD: textiles, paper.

SUBSTANCE: woven preform for fiber-reinforced composite material comprises horizontal layers of woven fabric and vertical layers of woven fabric, woven integrally with the horizontal layers. In addition, the vertical layers extend in the form of structural elements between the horizontal layers, and the horizontal layers and vertical layers form the through cells in the preform.

EFFECT: preform has a continuous annular reinforcement in each cell formed by circular weaving of weft fibers.

23 cl, 17 dwg

FIELD: textiles, paper.

SUBSTANCE: present invention relates generally to seamless three-dimensional workpiece with at least one sidewall, at least in one direction, formed from a woven base material comprising at least two layers, and to a method of forming such a workpiece. The fibres in the first direction are intertwined, at least between the upper layer and the second layer so that the upper layer can be bent relative to the other layers to form after bending a solid side wall. In addition, the fibres can be intertwined between the second layer from above and the second layer so that the second layer from above can be bent relative to the other layers to form after bending a second solid sidewall perpendicular to the first solid sidewall. In addition, the workpiece can comprise separate sidewalls formed by bending the parts of the upper layer.

EFFECT: development of a novel method of weaving.

34 cl, 22 dwg

FIELD: textiles, paper.

SUBSTANCE: quasi-isotropic three-dimensional preform and method of its manufacture are disclosed. The preform comprises woven elements interwoven with each other. The woven elements comprise at least two stiffeners woven integrally with it or a wall in a direction perpendicular to the plane of the woven element.

EFFECT: preform can be used in the production of fibre-reinforced composite materials.

28 cl, 5 dwg

FIELD: textiles, paper.

SUBSTANCE: reinforcing fibrous structure (100) for a part of a composite material is integrally woven by the multi-layer weaving between the plurality of layers of weft yarns (102) and a plurality of layers of warp yarns (101) located between two adjacent surfaces of the said structure. The fibrous structure (100) comprises at least one arcuate section (120) extending along one of the surfaces of the fibrous structure (100), at that the arcuate section (120) comprises at least some of the warp yarns (101) continuous with at least two adjacent layers of warp yarns contained on one of the surfaces of the structure (100). The warp yarns of the arcuate section (120) have a length greater than that of the warp yarns of at least two underlying layers of warp yarns of the structure (100). In addition, the warp yarns of the arcuate section (120) are not interconnected with the other warp yarns of the fibrous structure (100).

EFFECT: strengthening of the structure.

11 cl, 28 dwg

FIELD: textile, paper.

SUBSTANCE: invention relates to a fibrous preform (100) woven as a single piece using three-dimensional weaving, intended for the shelve manufacture of a composite material with a closed box construction for a turbine engine fan. In each plane of the fiber preform, a plurality of threads are interwoven with the layers of fill yarn threads on the first, second and third sections (102, 104, 106) of the fiber preform; at the same time, there remains a closed (thread) non-interlacing zone 108 separating the first section from the second section over a certain dimension of the fiber preform length in the direction of the base between the upstream (thread) non-interlacing border (108a) and the downstream (thread) non-interlacing border (108b); and at the same time, at least one open (thread) non-interlacing zone (110) that separates the second section from the third section over a certain dimension of the fiber preform length in the direction of the base, from the (thread) non-interlacing border (110a) to the downstream (100c) fiber preform. The invention also provides a method of manufacturing a preform for a composite material shelf with a closed box construction designed for a turbine engine fan using such a fiber preform.

EFFECT: increased effectiveness of the preform.

15 cl, 23 dwg

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