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Multi-level structure fabric for radome and its weaving method

A multi-level, radome technology, applied in the field of fabric weaving, can solve the problems of unfavorable resin matrix fiber infiltration, lower mechanical properties of composite materials, lower fiber strength utilization, etc., and achieve low cost, low porosity, and small yarn bending Effect

Active Publication Date: 2018-04-13
TIANJIN GONGDA AEROTECH COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fine-count yarn fine knitting process uses fine-count yarns to finely weave two-dimensional or three-dimensional radome reinforcement fabrics, which have the characteristics of fine and uniform fabric structure and good overall performance, but the fabric weaving cycle is long and production high cost
The existing ply yarn coarse knitting process uses single-ply yarn to ply and weakly twist to make thicker ply yarn, and then uses thicker qualified yarn to weave to make radome reinforced fabric, which has high weaving efficiency and high production efficiency. Short cycle, low cost, etc., but thicker plied yarn will lead to increased bending curvature of the yarn in the reinforced fabric, and reduced fiber strength utilization; at the same time, it will increase the yarn gap in the fabric, reduce the coverage, and reduce the fiber distribution. Unevenness, fiber accumulation at the interweaving point is not conducive to the infiltration of the resin matrix to the fibers inside the yarn, which reduces the mechanical properties of the composite material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Multi-level structure fabric for radome and its weaving method
  • Multi-level structure fabric for radome and its weaving method
  • Multi-level structure fabric for radome and its weaving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Multi-Layered Plain Weave Fabric

[0029] Multi-ply plain weave (see Figure 4 ) includes a warp sub-fabric 4 and a weft sub-fabric 5; the sub-fabric is a two-dimensional three-way weaving structure formed by axial yarns 2 parallel and straightly arranged and bound by weaving yarns 1.

[0030] (1) Selection of yarns: 27Tex quartz yarn is selected for braiding yarn 1, and 190Tex quartz yarn is selected for axial yarn 2. The fineness of the axial yarn 2 is 7.04 times that of the weaving yarn 1;

[0031] (2) Weaving of the sub-fabric: both the warp sub-fabric 4 and the weft sub-fabric 5 select 13 weaving yarns 1 and 6 axial yarns 2, and adopt a two-dimensional three-way belt weaving process. Line 1 bundles parallel and straight axial yarns 2 to form a sub-fabric, the width of the sub-fabric is 4.0 mm, and the thickness is 0.3 mm;

[0032] (3) Weaving of the fabric: the warp density is 22 threads / 10cm, the weft density is 22 threads / 10cm, and the warp sub-fabr...

Embodiment 2

[0034] Example 2: Multi-level layered fabric

[0035] Multilayer laminated fabric (see Figure 5 ) includes a warp sub-fabric 4 and a weft sub-fabric 5; the sub-fabric is a two-dimensional three-way weaving structure formed by axial yarns 2 parallel and straightly arranged and bound by weaving yarns 1.

[0036] (1) Selection of yarn: 27Tex quartz yarn is selected for weaving yarn 1, and 190Tex quartz yarn is selected for axial yarn 2. The fineness of the axial yarn 2 is 7.04 times that of the weaving yarn 1;

[0037] (2) Weaving of the sub-fabric: the warp direction sub-fabric 4 selects 13 weaving yarns 1 and 6 axial yarns 2, and adopts a two-dimensional three-way belt weaving process to weave into a flat strip-shaped sub-fabric. 4.0mm and a thickness of 0.3mm; the weft sub-fabric 5 selects 25 weaving yarns and 12 axial yarns, and adopts a two-dimensional three-way belt weaving process to weave a flat strip-shaped sub-fabric with a width of 8.1mm, thickness 0.3mm;

[0038]...

Embodiment 3

[0039] Example 3: Multi-level Orthogonal Three-way Fabric

[0040] Multilayer Orthogonal Triaxial Fabric (see Image 6 ) includes a warp sub-fabric 4, a weft sub-fabric 5 and a normal yarn 8; the sub-fabric is a two-dimensional three-dimensional weaving structure formed by axial yarns 2 being parallel and straightly arranged and bound by a weaving yarn 1 .

[0041] (1) Selection of yarns: weaving yarn 1 selects 27Tex quartz yarn, axial yarn 2 selects 380Tex quartz yarn, and normal direction yarn 8 selects 190Tex quartz yarn. The fineness of the axial yarn 2 is 14.08 times that of the weaving yarn 1.

[0042] (2) Weaving of the sub-fabric: both the warp sub-fabric 4 and the weft sub-fabric 5 select 37 weaving yarns 1 and 18 axial yarns 2, and are woven by a two-dimensional three-way belt weaving process Flat strip-shaped sub-fabric, object width 13.5mm, thickness 0.5mm;

[0043] (3) Fabric weaving: the warp density is 7 threads / 10cm, and the weft density is 7 threads / 10cm. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a multi-level structure fabric for a radome and a weaving method thereof. The fabric is made of weaving yarn and axial yarn, and adopts two-dimensional three-way belt weaving process. The weaving yarn is bundled with parallel and straight axial yarns to form a sub-fabric, and then the sub-fabric is woven to form plain weave and twill weave. , satin, layered or orthogonal three-way fabrics. The weaving method has the advantages of simple process, convenient operation, high production efficiency, short cycle and low cost.

Description

technical field [0001] The invention relates to the technical field of fabric weaving, in particular to a multi-level structure fabric for a radome and a weaving method thereof. Background technique [0002] Quartz fiber reinforced composite material has the characteristics of light weight, high strength, high modulus, good dielectric properties, etc., and is an important material for preparing high-performance radome. With the wide application of radome in aviation, aerospace, national defense, communication and other fields, efficient and low-cost manufacturing is a key problem to be solved urgently. [0003] Quartz fiber reinforced fabric is the main structural reinforcement of composite radome. Application No. 201210592506.7 discloses a weaving method for a frustum fabric. The fabric is a layer-by-layer corner interlocking structure (2.5D weaving unit structure). In a specific embodiment, the warp and weft yarns of the fabric both use ply yarns. Application No. 2015101...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D15/00D03D13/00D03D3/00D03D1/00D04C1/02D04C1/06D03D15/242D03D15/44
CPCD03D1/00D03D3/00D03D13/008D04C1/02D04C1/06D10B2505/02D10B2101/02D03D15/497
Inventor 陈利张春燕王心淼张一帆姜茜焦亚男孙颖
Owner TIANJIN GONGDA AEROTECH COMPOSITE MATERIALS
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