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Hollow core sandwich rotary body fabric and application thereof

A rotator and sandwich technology, applied in fabrics, multi-strand fabrics, textiles, etc., can solve problems such as large loss, unstable wave transmission, complicated preparation process of rotator radome, etc., and achieve good electrical performance and wave transparency uniform effect

Active Publication Date: 2015-04-08
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the prior art, such as the heavy thickness of the rotary fabric, the complicated preparation process of the rotary radome, the unstable wave transmission, and the large loss, the purpose of the present invention is to provide a hollow sandwich rotary fabric and its application.

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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  • Hollow core sandwich rotary body fabric and application thereof
  • Hollow core sandwich rotary body fabric and application thereof
  • Hollow core sandwich rotary body fabric and application thereof

Examples

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Embodiment 1

[0024] As shown in the figure, the hollow sandwich rotary fabric is interwoven by the outer warp system I, the pile warp system II and the outer weft system 1 (the ground weave is represented by plain weave), forming the outer layer of the rotary fabric; the inner layer The warp system III, the pile warp system II and the inner layer weft yarn system 2 are interwoven to form the inner layer of the rotary fabric; the pile warp system II connects the inner and outer layers of the fabric (the connection method is represented by "3 / 8W"), so that the inside and outside The fabric becomes a hollow sandwich fabric. In the inner and outer layers, the total number of warp yarns is an odd number. The outer layer weft yarn system 1 alone completes all the interweaving of the outer layer warp yarn system I and the pile warp system II. The inner layer weft yarn system 2 Complete all the interweaving of warp system III and warp system II of the inner layer alone.

[0025] The above-mentione...

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Abstract

The invention discloses a hollow core sandwich rotary body fabric and application thereof. The hollow core sandwich rotary body fabric comprises an inner layer, a middle core layer and an outer layer from inside to outside in sequence, wherein the inner layer is formed by interweaving an inner layer warp system and an inner layer weft system; the outer layer is formed by interweaving an outer layer warp system and an outer layer weft system; the middle core layer is formed by interweaving a pile warp system with the inner layer weft system and the outer layer weft system respectively. The hollow core sandwich rotary body fabric disclosed by the invention is good in electrical property, light in weight and high in strength, and is relatively applicable to communication antenna covers; due to adoption of single yarns, the distribution and the movement modes of axial yarns among unit tissue structures of the hollow core sandwich rotary body fabric are all identical, and a composite material made of the fabric is uniform in wave transmissivity at different parts; the fabric can be used in a reinforced mobile communication antenna cover body which is made of a glass steel composite material of a hollow core sandwich structure, the dielectric constant epsilon of the fabric is less than 2, and the loss tangent tg delta of the fabric is less than 0.007.

Description

technical field [0001] The invention belongs to the field of special structure woven fabrics, and in particular relates to a hollow sandwich rotary fabric and its application. Background technique [0002] At present, the production of high-thickness rotary fabric-reinforced composite materials is nothing more than solid FRP pultrusion technology, multi-layer single-layer fabric lamination lap joint technology or three-dimensional three-dimensional weaving technology. To achieve the requirement of "lightweight", the multi-layer single-layer fabric lamination lap joint technology still has a structural weak ring at the lap joint, which has a certain impact on the strength and electrical properties of the composite material. [0003] At present, the surface of the hollow sandwich structure fabrics produced at home and abroad is flat, and the manufacture of the rotator radome needs the help of molds, and the joints of fabric edges are often combined with fabric lapping and resi...

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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IPC IPC(8): D03D11/00D03D15/00D03D25/00D03D1/00H01Q1/42D03D15/267D03D15/275
CPCH01Q1/42D03D1/00D03D11/00D03D15/00D03D25/00D10B2101/06
Inventor 汪昭君张艳红匡宁张立泉张哲鹏
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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