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Open-work knitted textile resin infusion medium and reinforcing composite lamina

A resin-impregnated, braided fabric technology for fabrics, warp knits, leno fabrics, etc. that addresses issues of increased complexity, high waste, and non-profit flow costs

Inactive Publication Date: 2009-07-29
VRAC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest drawback of surface impregnation is the high waste and non-profit flow costs due to the disposal of the outer layer and surface impregnation medium
Other drawbacks include steep implementation learning curves and increased complexity due to increased part size

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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  • Open-work knitted textile resin infusion medium and reinforcing composite lamina
  • Open-work knitted textile resin infusion medium and reinforcing composite lamina
  • Open-work knitted textile resin infusion medium and reinforcing composite lamina

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The following is an embodiment of the actual invention of the art of open-work pile knitting using warp knitting, one of which is shown graphically in image 3 (6) In.

[0042] As shown above, one form of the open work knitted fabric 6 is a warp woven fiber fabric, in which the open mesh has a main porous structure defined as a polygon, wherein at least some edges of the polygon are defined by piles to provide periodically raised Three-dimensional protrusions or ribs.

[0043] Multiple piles are separated by distances dx and dy (see image 3 ), where the distance dx varies with the specifications of the machine knitting the knitted fabric, the size of the yarn forming the knitted fabric, and the weaving structure, and dy varies with the number of routes selected. Therefore these intervals are a design choice.

[0044] In use, the surface 6 of the pile open work knitted fabric is arranged in a manner of being in face-to-face contact with the adjacent layer of the preform 5. Du...

Embodiment 2

[0052] Figures 6a-f show a warp braided guide rod-winding diagram of another non-limiting embodiment of the open working braid 6 of the present invention.

[0053] Figures 6a and 6b show the winding movement of the bottom net. In Figure 6a, in order to form an open chain stitch defined by the yarn 13, the guide rod 1 performs a repeated movement of 0-4 / 4-0, like a weft 14 hooking, in order to form a 4-needle intarsia as shown in the guide bar 2 in Fig. 6b, the weft yarn performs a repeated movement of 0-0 / 16-16. Figures 6c and 6d show the winding motion of a suitable multi-row tuck embossed structure. Rod 3 in Figure 6c works according to the following code: 4-4 / 4-0 / 4-0 / 4-4 / 8-12 / 8-12 and the screw is at both ends of each guide, two in and six out repeat. Rod 4 in Figure 6d works according to the following code: 4-4 / 8-12 / 8-12 / 4-4 / 4-0 / 4-0 and the screw is at both ends of each guide, four out, then two Repeat in and out.

[0054] The timing of the winding movement of the rod 3 and th...

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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PUM

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Abstract

Resin infusion medium and reinforcing composite lamina textile constituted by a warp knit open work structure (6) produced in the form of polygons (9) of which at least some of the edges (1 1) are defined by knops (10) such as to give prominence to the design to provide for fluidic channels, the knops (10) being knitted to be sufficiently non-compressible in order to resist collapse of the fluid channels during compression of the composite preform (5, 6) under vacuum induced process pressure.

Description

Technical field [0001] The invention relates to a resin impregnated medium and a reinforced composite material layer composed of an open working braid made by a warp knitting machine. Background technique [0002] Fiber fabric reinforced resin composite structures are used in various industries, including parts and finished products in automobiles, tourist cars, trucks, aircraft, ships, railways, electrical appliances, sports equipment, containers, construction, anti-corrosion, electrical and medical industries manufacture. There are generally several known technical methods for forming fiber fabric reinforcement layer (laminae) composite materials. [0003] Closed molding has existed for many years, but it is widely used when manufacturers seek to reliably manufacture large-capacity, high-quality parts while reducing harmful air pollutant emissions. In the closed compression molding process, the fiber fabric and / or other reinforcements collectively referred to as "preforms" are ...

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): D03D19/00D04G1/00D04H1/00B32B5/26
CPCB32B2250/40B32B2262/101D10B2505/02B32B2255/26B32B5/026D04B21/12B32B3/02B32B5/024B32B2262/0276B32B2605/00B32B2262/106B32B2439/00B32B2250/20B32B2262/0269B32B2255/02B32B2307/31B32B3/12B32B5/02B32B5/26B32B2459/00B32B1/02B32B5/08D10B2403/0114D10B2403/02B29C70/547Y10T442/494Y10T442/45Y10T442/133Y10T442/463Y10T442/40Y10T442/159Y10T442/153Y10T442/10Y10T442/102Y10T442/109Y10T442/183Y10T442/488Y10T442/456B32B1/00
Inventor P·E·麦克M·奥格登
Owner VRAC
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