Three-dimensional woven hollow structure preform based on digital guide template and forming method of preform

A technology of three-dimensional weaving and prefabrication, which is applied in the direction of textiles, papermaking, and woven fabrics, and can solve problems such as the limitation of overall mechanical properties and the poor bonding ability of bonded parts

Active Publication Date: 2020-08-07
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional sandwich structure is generally manufactured by bonding the face plate and the core ma...

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-dimensional woven hollow structure preform based on digital guide template and forming method of preform
  • Three-dimensional woven hollow structure preform based on digital guide template and forming method of preform
  • Three-dimensional woven hollow structure preform based on digital guide template and forming method of preform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The three-dimensional woven hollow prefabricated body and its forming method based on the digital guide template proposed by the present invention are as follows: Figure 1-8 as shown in figure 1 As shown in , the forming of the three-dimensional hollow preform includes three parts, the upper panel 1, the middle support core 2, and the lower panel 3.

[0028] First, according to the design requirements of the hollow prefabricated body, the upper panel and the lower panel are woven layer by layer using the guide rod array, as shown in figure 2 As shown, the horizontal fibers 4 and the longitudinal fibers 5 are laid and formed along the array formed by the guide rods 6. The guide rods 6 are positioned by the guide rod fixing plate 8, and the laid fibers are stacked and formed layer by layer to obtain the upper panel and the lower panel. The weaving structure of the lower panel and the middle support core can adopt a single woven structure or a mixed structure, and can a...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a three-dimensional hollow structure preform and a forming method thereof, and can realize the integrated flexible weaving of the hollow structure preform. The hollow preformcomprises an upper panel, a middle connecting core and a lower panel; the preform can further be composed into a matrix, the matrix comprises a resin base, a metal base, a carbon-ceramic base and thelike; and after the composition of the matrix, a filling core is added to the hollow part, and an integrated hollow composite material can be obtained. According to the three-dimensional hollow structure preform, the upper panel, the connecting core and the lower panel are reinforced by three-dimensional structural fibers, and compared with a traditional hollow structure, the mechanical or adhesive connection is reduced, and the overall structural mechanical property is more excellent; the design is more flexible, shaped preform fibers may be one or more, fiber space structure of the preform may be one or more combinations, and the shaped hollow structure may be dot-matrix type, rib type, ring type, or a combination of several structures; and when used for weaving the integrated hollow structure preform, the method has the advantages of being simple in forming principle and flexible in design.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional weaving of composite materials, and in particular relates to a three-dimensional weaving hollow structure preform and a forming method. Background technique [0002] Sandwich composite materials have the characteristics of high specific strength and specific modulus, good fatigue resistance and shock resistance, and can effectively absorb impact loads. noise integration etc. The traditional sandwich structure is generally manufactured by bonding the face plate and the core material, which leads to poor bonding ability of the bonded parts and limits the overall mechanical properties. [0003] Three-dimensional fabric forming technology uses methods such as weaving, weaving, and knitting to weave fibers into a three-dimensional shape to obtain a prefabricated body, which is then compounded with a matrix. The resulting composite material has excellent mechanical properties, is resistant to...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D04C1/06D04C1/02B29B11/14
CPCD04C1/06D04C1/02B29B11/14B29C49/071B29C2949/0715
Inventor 单忠德吴思远战丽刘丰张群
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap