Check patentability & draft patents in minutes with Patsnap Eureka AI!

Preparation method for curved-surface composite material preform

A technology of composite materials and manufacturing methods, applied in fabrics, textiles, textiles, and papermaking, etc., can solve problems such as complex manufacturing processes, unsatisfactory internal quality of products, and poor uniformity of fabric density, so as to simplify the molding process and ensure internal quality , Improve the effect of density uniformity

Active Publication Date: 2016-09-21
江苏伯龙宇航新材料科技有限公司
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, the manufacturing process of the curved surface composite material prefabricated body is complicated, and the fabric density uniformity of the manufactured product is poor, and the internal quality of the product cannot meet the demand

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
  • Preparation method for curved-surface composite material preform
  • Preparation method for curved-surface composite material preform
  • Preparation method for curved-surface composite material preform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A method for manufacturing a curved surface composite material prefabricated body, comprising the following steps:

[0022] a. Make molds, molds and such as figure 1 , 2 It coincides with the inner surface of the curved composite material prefabricated body shown in 3.

[0023] b. Measure the longest generatrix length L1 in this direction in the length direction of the mould, and measure the longest generatrix length L2 in this direction in the width direction of the mould.

[0024] c, make the planar three-dimensional fabric that is interwoven by warp yarn 1 and weft yarn 2, the longest generatrix length L1 on the length direction and the longest generatrix length L2 on the width direction are the basis of the cloth length and the width of the planar three-dimensional fabric Then reserve a certain margin at the two ends of the warp direction and the two ends of the weft direction, and the margin is used as the basis for pulling the yarn in the subsequent steps.

[0...

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 preparation method for a curved-surface composite material preform. The preparation method comprises the following steps: a, manufacturing a mould; b, measuring length L1 of a longest bus in the length direction of the mould and length L2 of the longest bus in the width direction of the mould; c, manufacturing planar three-dimensional fabric; d, laying the planar three-dimensional fabric on the mould; e, drawing thread ends at the two sides of weft yarns in sequence, and straightening the bus, in the width direction of the mould, of the weft yarns; f, drawing thread ends at the two ends of warp in sequence, and straightening the bus, in the length direction of the mould, of the warp; and g, if the yarn is bent, repeating the steps e and f until the yarn is completely straightened relative to the bus. The preparation method has the beneficial effects that a phenomenon of forming penetrating holes in the thickness direction of the fabric due to yarn adding and reducing of a conventional curved-surface composite material perform can be effectively solved, and the inner quality of the product is guaranteed; and the density uniformity of the fabric is improved, the forming process is simplified, and quick forming can be realized.

Description

technical field [0001] The invention relates to a method for manufacturing a curved surface composite material prefabricated body. Background technique [0002] In the existing technology, the manufacturing process of the curved surface composite material prefabricated body is complicated, and the fabric density uniformity of the manufactured product is poor, and the internal quality of the product cannot meet the demand. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for manufacturing a curved composite material prefabricated body, which simplifies the manufacturing steps and improves product quality. [0004] The technical solution adopted by the present invention to solve the technical problems is: a method for manufacturing a curved composite material prefabricated body, which has the following steps: a, making a mould, which matches the inner surface of the curved surface composite material prefabr...

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): D03D25/00
CPCD03D25/005
Inventor 曹桂芬
Owner 江苏伯龙宇航新材料科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com