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Three-dimensional weaving forming method for composite material

一种复合材料、三维织造的技术,应用在非织造布、纺织品和造纸、织机等方向,能够解决致密度低、尺寸小、浸渍后空隙多等问题,达到加强致密度的效果

Active Publication Date: 2011-09-21
BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies and defects of weaving parts in the prior art, such as simple shape, small size, low density, and many voids after impregnation, the purpose of the present invention is to provide a three-dimensional weaving forming method for composite materials, which aims to expand the traditional three-dimensional weaving material. range, manufacture large and complex structural parts, and improve the impact resistance and bearing capacity of ordinary three-dimensional woven parts, and meet the structural performance requirements of the main load-bearing components prepared from composite materials

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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  • Three-dimensional weaving forming method for composite material

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Embodiment Construction

[0031] In order to clearly express the step characteristics of a three-dimensional weaving forming method for composite materials of the present invention, a weaving method of a simple hexagonal prism whose cross section is a regular hexagon is listed below.

[0032] According to the characteristics of the parts, the weaving guide posts are densely arranged on the formwork at a distance of 3mm to form a controllable digital layout formwork of 60×60mm; according to the performance requirements of the parts, several hollow guide sleeves with smooth exterior and threaded interior are woven; The guide sleeve passes through the hollow guide column in the Z direction and is fixed on the controllable digital template, wherein the smooth wall 2 of the guide sleeve is close to the inner wall of the hollow guide column, and the outer wall 1 of the guide sleeve with threads is wrapped around the outer wall of the hollow guide column. The guide sleeve that is enclosed within the bottom end...

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 three-dimensional weaving forming method for a composite material, and belongs to the cross field of weaving and manufacturing. The method comprises the following steps of: performing layered design according to the characteristics of a part structure, and optimizing a weaving path; arranging weaving guide posts on a controllable digital arrangement template at intervals according to certain rules; after a guide sleeve passes through the hollow guide posts along the Z direction and is turned outwards, fixing the guide sleeve on the controllable digital template; selecting a silk material for weaving the layer; after the weaving of one layer is finished, lowering the controllable digital arrangement template, and driving the guide sleeve to expose for a distance to form a new layer of arrangement template; weaving layer by layer till the weaving of the whole part is finished; detaching and sewing the part; and soaking the part into resin to form a composite material part. According to the method, the quick prototyping technology and the weaving technology are organically combined to realize three-dimensional weaving of the complex functional part; and meanwhile, composite material preparation and part formation are integrated, so that manufacture of the complex functional part is realized.

Description

technical field [0001] The invention relates to a novel method and equipment for three-dimensional weaving of functional components, belonging to the intersecting fields of textile and manufacturing. Background technique [0002] Three-dimensional weaving technology is known as one of the most advanced composite material manufacturing technologies in the world. Three-dimensional weaving is a three-dimensional seamless and complete structure obtained by interweaving long and short fibers. Its technological characteristics are that it can produce regular shapes and special-shaped solid bodies and can make structural parts multifunctional—that is, weaving multi-layer integral components. [0003] In the early 1980s, Dr. R. Florentine of Quadrax Advanced Materials Company proposed a four-step processing technology. In 1988, DuPont's Popper and McConnell developed a two-step processing technology, which perfected the three-dimensional weaving process theory system. The three-dim...

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): F16S5/00D03D3/00
CPCD10B2505/02D03D41/004D04H3/05D03D25/005D04H3/04B33Y10/00D03D49/00
Inventor 单忠德刘丰董晓丽林智琳
Owner BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD
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