A Designable Laminated Structure of In-Plane Diagonal Yarns

A layered structure and planar technology, applied in the direction of textiles, papermaking, textiles, fabrics, etc., can solve the problems of high labor cost, low volume content, low efficiency, etc., and achieve good mechanical properties, high efficiency and low cost, and improve mechanical properties. Effect

Active Publication Date: 2022-04-19
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are only X and Y-direction fibers in the plane of the structure, which cannot achieve isotropy in the plane.
In addition, the volume content of the structure is slightly low, the uniformity control is difficult, the efficiency is low, and the labor cost is high
[0003] With the development trend of three-dimensional fabrics, the requirements for high uniformity, fast and low cost of fabrics are becoming more and more urgent, and 2.5D structures are gradually unable to meet the needs of this field.

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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Effect test

Embodiment 1

[0044] Embodiment 1: Using the layered structure that can be designed with the oblique yarn in the plane according to the present invention to prepare a plate-shaped fabric

[0045] The fabric size is 20mm in length, 8mm in width, and 2.5mm in thickness.

[0046] The layered structure can be designed by using oblique yarns in the plane; the oblique yarns are required to have an inclination angle of 20 to 30 degrees (the angle between the oblique yarns and the warp yarns); the fiber is made of 190Tex quartz fiber; the design warp yarns are 2 strands, and the oblique yarns are 2 strands , 5 layers of warp yarns, 6 layers of oblique yarns; the density of warp yarns is 8.0 yarns / cm, and the density of weft yarns is 2.0 yarns / cm.

[0047] The specific process implementation steps are described as follows:

[0048] 1) Initial cloth yarn: 5 layers of warp yarns, 6 layers of oblique yarns, the arrangement method is a square matrix, the number of arrangement is 6 rows of warp yarns × ...

Embodiment 2

[0077] Embodiment 2: Prepare the tubular fabric with the designable layered structure of the oblique yarn in the plane according to the present invention

[0078] The fabric dimensions are 12.7mm in diameter, 4mm in wall thickness, and 200mm in height.

[0079] The layered structure can be designed by adopting oblique yarns in the plane; the inclined angle of oblique yarns is required to be 40-50 degrees (the angle between oblique yarns and warp yarns); the fiber is made of 190Tex quartz fiber; 2 strands of warp yarns are designed, and 4 strands of oblique yarns , 5 layers of warp yarns, 6 layers of oblique yarns; the density of warp yarns is 8.0 yarns / cm, and the density of weft yarns is 1.5 yarns / cm.

[0080] The specific process implementation steps are described as follows:

[0081] 1) Initial cloth yarn: 5 layers of warp yarns, 6 layers of oblique yarns, the arrangement method is a circular matrix, and the number of arrangement is 32 rows of warp yarns × 5 layers, 32 col...

Embodiment 3

[0096] Embodiment 3: Using the layered structure that can be designed with in-plane oblique yarns according to the present invention to prepare plate-shaped fabrics

[0097] The fabric size is 100mm in length, 8mm in width, and 3mm in thickness.

[0098] The fabric adopts oblique yarns in the plane to design a layered structure and introduce weft yarns; the oblique yarns are required to have an inclination angle of 15 to 20 degrees (the angle between the oblique yarns and the warp yarns); the fiber uses 190Tex quartz fiber; the warp yarns are designed to be 2 strands, 2 strands of direction yarn, 2 strands of weft yarn, 5 layers of warp yarn, and 6 layers of oblique yarn;

[0099] The specific process implementation steps are described as follows:

[0100] 1) Initial cloth yarn: 5 layers of warp yarns, 6 layers of oblique yarns, the arrangement method is a square matrix, the number of arrangement is 16 rows of warp yarns × 5 layers, 15 columns of oblique yarns × 6 layers, and...

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 relates to a designable layered structure of oblique yarns in a plane, which has multiple layers, and each layer is composed of warp yarns and oblique yarns, wherein the warp yarns are distributed in a sinusoidal form along the length direction of the fabric; Extend forward or reverse spirally along the length direction at a certain angle with the warp yarns, and interweave with the warp yarns, the aforementioned included angle is an acute angle; while the oblique yarns interweave with the warp yarns of the current layer, they also interweave with the warp yarns of the adjacent layer. The invention can improve the in-plane isotropic performance, facilitate the realization of mechanized preparation, and can better meet the requirements of fabric uniformity, integrity, high damage tolerance, impact resistance, delamination resistance and fatigue resistance, and has good uniformity and performance Excellent, easy to operate, conducive to mechanized preparation, high efficiency and low cost. The present invention can be applied to the molding of plate-shaped fabrics, and can also be applied to the molding of rotary-shaped fabrics such as cylindrical, conical, and special-shaped fabrics.

Description

technical field [0001] The invention relates to a designable layered structure of oblique yarns in a plane, which belongs to the field of three-dimensional fabric manufacturing. Background technique [0002] Fiber-reinforced composites are an important development direction of materials. The layered structure is a preform structure, which is a fabric structure with connections between layers, and the 2.5D structure is a common layered structure. The reinforced composite material prepared with it has comprehensive properties such as high strength, high modulus, high damage tolerance, impact resistance, anti-delamination and anti-fatigue, which significantly improves the performance of weapons and has attracted the attention of the composite material industry. It has become a research hotspot in high-performance composite materials technology. The 2.5D structure is interwoven with warp yarns and weft yarns. The warp yarns are distributed in periodic waves along the warp dire...

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): D03D25/00
CPCD03D25/005
Inventor 朱建勋朱梦蝶唐亦囡王高强
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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