Planar profiling fabric and forming process thereof
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A molding process and fabric technology, applied in the direction of fabrics, multi-strand fabrics, textiles, etc., can solve the problems of uneven addition and subtraction of warp yarns, improve designability, solve the problem of equipment capacity limitations, and realize the diversification of fabric structures. Effect
Active Publication Date: 2020-11-10
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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[0008] The purpose of the present invention is to provide a plane profiling fabric and its forming process to solve the problem of concentration of defects caused by uneven addition and subtraction of warp yarns in the forming of variable width plates and cone three-dimensional fabric preforms in the existing 2.5D weaving process technology
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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
[0081] The developed planar profiling fabric is conical, with a half-cone angle of 12°, a fabric height of 50mm, an outer diameter of the big end of 500mm, and a fabric equal wall thickness of 10mm. The process parameter design is shown in Table 1.
[0082] Table 1 Fabric process parameter table
[0083]
[0084]
[0085] The specific operation steps are as follows:
[0086] (1) Select the quartz fiber whose specification is 190Tex according to Figure 6 Arranged in a matrix as shown, one end of the quartz fiber is connected to the length-fixing device of common three-dimensional weaving equipment, or stored in a yarn storage device or pan head commonly used in textile equipment; the other end of the quartz fiber is fixed to the yarn fixing device.
[0087] (2) According to Figure 6 As shown, the warp yarns are arranged in 4 groups, respectively Z 1 ,Z 2 ,Z 3 ,Z 4 , each group of warp columns is 394 columns.
[0088] (3) After completing step (2), adjust the pos...
Embodiment 2
[0096] The developed planar profiling fabric is cylindrical, the fabric height is 100mm, the fabric outer diameter is 300mm, and the fabric equal wall thickness is 6mm. The process parameter design is shown in Table 2.
[0097] Table 2 fabric process parameter table
[0098]
[0099] The specific operation steps are as follows:
[0100] (1) Select carbon fiber with a specification of 198Tex according to Figure 8 Arranged in a matrix as shown, one end of the carbon fiber is connected to the length-fixing device of common three-dimensional weaving equipment, or stored in a yarn storage device or pan head commonly used in textile equipment; the other end of the quartz fiber is fixed to the yarn fixing device.
[0101] (2) According to Figure 8 As shown, the warp yarns are arranged in 4 groups, respectively Z 1 ,Z 2 ,Z 3 ,Z 4 .
[0102] (3) After completing step (2), adjust the position of the warp shedding device as follows: Figure 8 As shown, the odd column is 2 p...
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 planar profiling fabric and a forming process thereof. The forming process includes the following steps that 1, the planar profiling fabric is decomposed into fabric bodies of n unit sleeves in the thickness direction, the thicknesses of the n unit sleeves are d1, d2... dn respectively, and the total thickness D of the planar profiling fabric is equal to the sum of d1, d2... dn; 2, plane unfolding and profiling design are carried out on the fabric body of each unit sleeve, and the fabric bodies of the n unit sleeves are woven by adopting a multi-piece forming method;and step 3, the fabric bodies of the n unit sleeves are sequentially arranged outside a core mold in a sleeving manner, and conversion into a three-dimensional form is carried out so as to obtain theplanar profiling fabric. According to the planar profiling fabric and the forming process, a grouped parallel warp arrangement manner and a reciprocating weft insertion manner are adopted, profiling weaving of large-size and large-diameter fabrics can be realized, the problem of equipment capacity limitation is solved, a three-dimensional profile fabric flattening technology is adopted for design,planar profiling weaving is performed in an offline manner, mechanical production can be achieved by means of existing common textile equipment, and the advantages of being efficient and low in costare achieved.
Description
technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a plane profiling fabric and a molding process thereof. Background technique [0002] Composite materials have a series of advantages such as high specific strength, high specific modulus, high damage tolerance and fracture toughness, impact resistance, non-delamination and fatigue resistance, and are widely used in aviation, aerospace, nuclear industry, ships and other fields. Fiber reinforcement for composite materials is a key component of high-performance composite materials, which plays a role in increasing strength and improving performance in composite materials, and determines the comprehensive performance of composite materials to a large extent. [0003] The military powers represented by the United States, Russia, France, and the United Kingdom are actively carrying out research on high-performance composite materials, and the reinforcement materials of co...
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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