Woven 2D+2.5D profiling fabric composite fabric and forming method thereof
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A molding method and fabric technology, applied in the direction of fabrics, textiles, textiles, and papermaking, can solve the problems of low densification, low volume content, and high labor costs, and achieve high mechanization, good uniformity, and easy operation. Effect
Active Publication Date: 2013-08-28
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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However, the volume content of the structure is slightly lower, the degree of refinement is lower, the efficiency is lower, and the labor cost is higher
[0003] With the development trend of three-dimensional fabrics, the requirements for the degree of fabric fineness, fast and low cost are becoming more and more urgent, and the above two structures can no longer meet the needs of this field.
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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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Embodiment 1
[0026] with tapered fabric (see eg image 3 ) as an example, the inner diameter of the large section of the fabric is 220.4mm, the inner diameter of the small section is 67.5mm, the height of the tapered section is 300mm, the length of the straight section is 110mm, and the overall thickness is 8mm.
[0027] The inner 4mm thickness of the fabric is 2.5D shallow cross-bending structure (see figure 1 c) The fiber is made of 190Tex quartz fiber; it is designed as a 2-layer shallow cross-bending structural unit cover, and the number of warp yarn layers in each unit cover is 5 layers; the warp yarn density is 10.0 yarns / cm, and the weft yarn density is 4.0 yarns / cm. Fabric outer 4mm thickness 2 / 2 twill construction (see figure 1 a), the fiber uses 72Tex quartz fiber; it is designed as a 21-layer 2 / 2 twill structure unit cover; the warp yarn density is 16.0 yarns / cm, and the weft yarn density is 12.0 yarns / cm.
[0028] The specific process implementation steps of the inner 4mm sha...
Embodiment 2
[0055] Tubular fabrics (see e.g. Figure 4 ) as an example, the inner diameter of the fabric is 285mm, the height is 410mm, and the overall thickness increases from 8.3mm to 9.8mm in the length direction.
[0056] The fabric is designed as a sandwich structure: the inner 1.8mm thickness adopts a plain weave structure (see figure 1 b), the fiber is made of 3K carbon fiber; the middle 5mm thickness adopts a shallow cross-bending structure (see figure 1 c), the fiber is made of 6K carbon fiber; the outer layer is 3mm thick and has a 2 / 2 twill structure (see figure 1 a), the fiber uses 3K carbon fiber.
[0057] Inner 1.8mm: plain weave structure, warp yarn density 16.0 yarns / cm, weft yarn density 12.0 yarns / cm, 6-layer unit cover.
[0058] Middle 5mm: shallow cross-bending structure, warp yarn density 8.0 yarns / cm, weft yarn density 3.0 yarns / cm, composed of 1-layer unit cover.
[0059] Outer layer 3mm: 2 / 2 twill weave structure is easy to achieve slight difference in fabric o...
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 provides woven 2D+2.5D profiling fabric composite fabric and a forming method thereof. The fabric is formed by combining one or two 2D structural unit sets with n layers and a 2.5D structural unit set with m layers. When the number of the 2D structural unit set is one, the 2D structural unit set serves as an outer layer, and the 2.5 structural unit set serves as an inner layer. When the number of the 2D structural unit sets is two, the 2.5D structural unit set serves as a middle layer, and the 2D structural unit sets serve as both the inner layer and the outer layer. From inside to outside, the outer diameter of each layer of the unit set is the same as the inner diameter of a layer of the unit set on the outer side of the unit set. The forming method of the woven 2D+2.5D profiling fabric composite fabric includes: 1) 2D and 2.5D profiling fabric is woven by adopting a plane profiling weaving mode; and 2) after the two kinds of structural unit sets are formed independently, cover die shaping is performed by a core mold according to sizes of the inner diameters of the unit sets. The woven 2D+2.5D profiling fabric composite fabric is rapid in forming, low in cost and good in evenness, can be applied to forming of variable cross-section fabric and forming of cylindrical fabric, and is high in damage tolerance, resistant to impact, resistant to delamination and anti-fatigue.
Description
technical field [0001] The invention relates to a fabric in the combination ratio of woven 2D+2.5D profiling fabric and a forming method thereof, belonging to the field of three-dimensional fabric manufacture. Background technique [0002] The 2D structure is often used in the forming of planar profiling fabrics. This structure has the advantages of high volume content, high degree of densification, and high level of mechanization. Among them, the forming structures commonly used in planar profiling fabrics include twill structure and flat plain structure. Since the structure is single-layer warp weaving, it is impossible to realize the overall molding of high-thickness three-dimensional fabrics. The 2.5D structure has a special structure, and the composite material reinforced with it has comprehensive properties such as high strength, high modulus, high damage tolerance, impact resistance, delamination resistance and fatigue resistance, which significantly improves the perf...
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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