Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Carbon fiber package and process for producing the same

A manufacturing method, carbon fiber technology, applied in transportation and packaging, thin material handling, delivery of filamentous materials, etc., can solve the problems that carbon fiber packages cannot form density correctly and lose their original shape, etc.

Active Publication Date: 2009-08-19
MITSUBISHI CHEM CORP
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, because the fractional W0 of the winding ratio W of the carbon fiber package in the patent document is 0.12 to 0.88, for example, when the fractional W0 is 0.5, the carbon fibers wound each time are completely overlapped before being reciprocated twice in the transverse direction. The position of the winding, so that the carbon fiber package cannot be correctly formed into a high density and is not easy to lose its original shape

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
  • Carbon fiber package and process for producing the same
  • Carbon fiber package and process for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] use as figure 1 The winding equipment that constitutes, carbon fiber bundle is wound on paper bobbin and obtains carbon fiber package, and described carbon fiber package is end-flat type, and its winding width is 254mm, and its total denier of described carbon fiber bundle is 29,700 denier, the number of monofilaments thereof was 50,000, and the width thereof was maintained at 12 mm when winding, the inner diameter of the paper bobbin was 82 mm, and the length thereof was 280 mm. Table 1 shows the conditions during winding and the state of the obtained carbon fibers. Specifically, the carbon fiber bundles are guided 1 to figure 1 It advances in the direction indicated by the broken line arrow, is introduced between the pressing roller 6 and the bobbin 7, and is wound on the bobbin 7 to obtain a carbon fiber package 8.

[0057] Here, the contact pressure at the time of winding is the average value of the force of contacting the bobbin 7 with the pressing roller 6 measu...

Embodiment 2 to 6

[0059] Flat-end carbon fiber packages were manufactured in the same manner as in Example 1 except that the winding conditions were set to the values ​​shown in Table 1. The properties of the obtained carbon fiber packages are shown in Table 1.

Embodiment 7 to 8

[0061] Flat-end carbon fiber packages were manufactured in the same manner as in Example 1, except that carbon fiber bundles with a total fineness of 28,500 denier were used and the winding conditions were set to the values ​​shown in Table 1. The properties of the obtained carbon fiber packages are shown in Table 1.

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

PropertyMeasurementUnit
angleaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

It is an object of the present invention to provide a package in an optimal form obtained by winding a carbon fiber bundle having a fineness of 25,000 to 35,000 deniers, which has a high wound density and is less apt to become loose, and a method for producing the same. The present invention is a carbon fiber package obtained by winding a carbon fiber bundle having a fineness of 25,000 to 35,000 deniers on a bobbin in a square-end type, wherein the width per unit fineness of the carbon fiber bundle is in the range of 0.3010 -3 to 0.6310 -3 mm / denier, the traverse angle in the beginning of winding is in the range of 13 to 14 DEG , the traverse angle in the end of winding is 3 DEG or larger, and the fractional portion W0 of the winding ratio W is in the range of 0.07 to 0.08.

Description

technical field [0001] The present invention relates to a carbon fiber package that is properly formed to have a high density and is not easily lost in shape, and a method for manufacturing the same. technical background [0002] In general industrial applications such as in relation to construction, civil engineering and energy, the demand for carbon fiber is increasing every year. In the method of molding large-scale constituent materials, such as fabric or filament winding method, carbon fibers with a fineness of about 7,000 to 20,000 deniers are currently required, and molding is performed by arranging a large number of carbon fibers. However, a problem that occurs when displaying and molding is that gaps appear between display units, and the resin is impregnated unevenly. [0003] In addition, when using carbon fibers with a denier of about 7,000 to 20,000 deniers, especially when manufacturing large and thick moldings, the number of overlapping or winding should be in...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B65H55/04B65H54/02B65H54/38
CPCB65H2701/314B65H54/381B65H55/04B65H54/02B65H54/38
Inventor 桐山孝之真木则仁
Owner MITSUBISHI CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com