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Integral annular three-dimensional fabric and weaving method thereof

A three-dimensional fabric and integral technology, applied in fabrics, textiles, papermaking, textiles, etc., can solve the problems of difficult three-dimensional circular fabrics to be completely integrally formed, reduce production efficiency, increase processes, etc., to achieve easy industrialization and use, and inhibit fabric delamination , The effect of low weaving cost

Inactive Publication Date: 2013-01-30
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for flanges and reinforcing rings, which are uniform, continuous, end-to-end, and have a variety of special-shaped cross-sections, the conventional three-dimensional weaving and three-dimensional weaving technology can only be realized by weaving along the fabric ring direction and then lapping. (such as sewing two annular fabrics with different diameters and heights into a three-dimensional annular fabric with a special cross-section for reinforcing flanges or reinforcing rings, etc.), which increases the process, reduces production efficiency, and increases costs , and it is difficult to realize the complete integral molding of the three-dimensional annular fabric in the true sense
Within the scope of the applicant's search, the technology of one-time complete integral molding of the integral annular three-dimensional fabric has not been reported yet.

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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  • Integral annular three-dimensional fabric and weaving method thereof
  • Integral annular three-dimensional fabric and weaving method thereof
  • Integral annular three-dimensional fabric and weaving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Weaving flanged circular fabric with "T" section.

[0052] The yarn 1 in the xoy plane of the endless fabric includes yarns in two directions of the x-direction yarn 11 and the y-direction yarn 12, and the cross-section is "T". Both the x-direction yarn 11 and the y-direction yarn 12 are 190tex quartz fiber×3 strands, and the z-direction yarn 2 is 190tex quartz fiber×1 strand. According to the cross-sectional shape, the fabric is divided into two parts: the outer ring E (indicated by ○ in Figure 4) and the inner ring F (indicated by ● in Figure 4). The number of yarn layers of the x-direction yarn 11 of the outer ring E part is 10 layers, the number of yarn layers of the y-direction yarn 12 is 11 layers, and the total thickness is 1 cm; the yarn of the x-direction yarn 11 of the inner ring F part The number of thread layers is 25 layers, the number of yarn layers of y-direction yarn 12 is 26 layers, and the total thickness is 2.5 cm. The arrangement density of the yar...

Embodiment 2

[0065] Weaving flange-type three-dimensional fabric with "I" cross-section.

[0066] The yarn 1 in the xoy plane of the flange type annular fabric includes yarns in four directions: x-direction yarn 11, y-direction yarn 12, +45°-direction yarn 13 and -45°-direction yarn 14, the cross-section For the "work" type. The yarn 1 in the xoy plane is 12K T300 carbon fiber, and the z-direction yarn 2 is 6K T300 carbon fiber. According to the cross-sectional shape, the fabric is divided into two parts, an outer ring E and an inner ring F, as in Example 1, wherein the outer ring E is composed of an upper part and a lower part. The number of yarn layers of the x-direction yarn 11, +45°-direction yarn 13 and -45°-direction yarn 14 of the upper and lower parts of the outer ring E is 5 layers, and the number of yarn layers of the y-direction yarn 12 It is 6 layers, and the thickness of each part is 1.1 cm; the number of yarn layers of the x-direction yarn 11, +45°-direction yarn 13 and -45...

Embodiment 3

[0082] to weave Shaped cross-section reinforced ring loop fabric.

[0083] The yarn 1 in the xoy plane of the reinforced ring type annular fabric includes yarns in two directions of the x-direction yarn 11 and the y-direction yarn 12, and the cross section is type. The yarn 1 in the xoy plane is 12K T300 carbon fiber, and the z-direction yarn 2 is 6K T300 carbon fiber. The number of yarn layers of the x-direction yarn 11 of the outer ring E part is 38 layers, the number of yarn layers of the y-direction yarn 12 is 39 layers, and the total thickness is 4 cm; the x-direction yarn 11 of the inner ring F part The number of yarn layers is 18, the number of yarn layers of the y-direction yarn 12 is 19 layers, and the total thickness is 2 cm. The fabric outer ring E is 20 cm in diameter and the inner ring F is 12 cm in diameter.

[0084] Steel pipe arrangement process parameter design:

[0085] (1) The length of the steel pipe in the E part of the outer ring L1=15cm

[0086] ...

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 an integral annular three-dimensional fabric and a weaving method thereof. The fabric is in a completely integral three-dimensional yarn interweaving structure, and is not laminated or lapped; the yarns inside an xoy plane where the annular direction and the radial direction of the fabric are positioned and the yarns in z direction are all in the states of extension, wherein the yarns inside the xoy plane can be orientated at any angle according to design requirements, and no interweaving point is formed among each layer of yarns; the yarns in z direction are vertical to the yarns inside the xoy plane, and are interweaved with the yarns inside the xoy plane so that each layer of yarns are restricted into an integral annular three-dimensional fabric. The weaving method comprises the following steps of: (1) designing and preplacing a steel pipe array; (2) penetrating and inserting a steel sheet; (3) threading the yarns inside the xoy plane; (4) and leading the yarns in z direction to replace all steel pipes till the integral annular three-dimensional fabric is weaved completely.

Description

technical field [0001] The invention relates to a three-dimensional fabric weaving technology, in particular to an integral annular three-dimensional fabric and a weaving method thereof. The fabric is mainly used as composite material reinforcement, which can improve the overall performance of composite material components and reduce costs. Background technique [0002] The ring structure is one of the most commonly used engineering structures, mainly including flanges and reinforcing rings. In the prior art, these annular structural parts are usually made of metal, especially those made of ordinary steel, which are not corrosion-resistant, prone to accidents, have a low safety factor, and are especially unfavorable for weight reduction. Fiber-reinforced composite materials have the advantages of high specific strength and specific stiffness, strong designability, good fatigue resistance, and corrosion resistance. As a structural material, fiber-reinforced composites have ...

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 Applications(China)
IPC IPC(8): D03D25/00
Inventor 孙颖张倩倩张典堂陈利李嘉禄
Owner TIANJIN POLYTECHNIC UNIV
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