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Carbon fiber fabric reinforced resin matrix composite girder cap and manufacturing method thereof

A technology for reinforcing resin-based and carbon fiber fabrics, which is applied in the manufacture of final products, sustainable manufacturing/processing, wind turbine components, etc., and can solve the problems of difficulty in obtaining high-performance carbon fiber spar caps, poor compressive strength, and performance limitations of composite materials, etc. problems, to meet the requirements of paving efficiency and perfusion efficiency, improve structural strength, and overcome the effect of not being resistant to medium and high temperatures

Active Publication Date: 2014-08-20
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research results show that although the special carbon fiber stitched fabric is used, the resin is easy to infuse when using the traditional vacuum adsorption process, but due to the constraints of the fabric structure, the performance of the composite material is limited, especially the compressive strength is poor
[0005] It can be seen that although the vacuum adsorption process of carbon fiber composite spar caps has long attracted attention and research, it is still difficult to obtain high-performance carbon fiber spar caps with existing materials and vacuum adsorption processes.

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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  • Carbon fiber fabric reinforced resin matrix composite girder cap and manufacturing method thereof
  • Carbon fiber fabric reinforced resin matrix composite girder cap and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Example 1: A carbon fiber fabric reinforced resin-based composite spar cap, using carbon fiber stitched fabric as a reinforcing material, and using a glycidyl ester epoxy resin system as a matrix resin. Carbon fiber stitched fabric, the warp material is 216g / m surface weight 2 The SYT45 carbon fiber yarn, the surface weight in the weft direction is 8g / m 2 Composed of 68tex glass fiber yarns, etc., where the weft yarn spacing is 10mm; the glycidyl ester epoxy resin system uses TDE85 epoxy resin + amine curing agent.

[0026] Methods of manufacturing spar caps such as figure 1 As shown, it specifically includes the following steps:

[0027] (1) First, apply a release agent on the main spar cap forming mold, then lay out process auxiliary materials such as release cloth and diversion net, and then lay the carbon fiber stitched fabric, and then lay on the carbon fiber stitched fabric in turn Put release cloth and other process auxiliary materials;

[0028] (2) Lay seali...

Embodiment 2

[0033] Example 2: A carbon fiber fabric reinforced resin-based composite spar cap, using carbon fiber stitched fabric as a reinforcing material, and using a glycidyl ester epoxy resin system as a matrix resin. Carbon fiber stitched fabric, the warp material is 216g / m surface weight 2 The SYT45 carbon fiber yarn, the surface weight of the weft direction is 8g / m 2 68tex glass fiber yarn, etc., wherein the weft yarn interval is 10mm; the glycidyl ester epoxy resin system is characterized in that the epoxy resin system is TDE85 epoxy resin+acid anhydride curing agent+accelerator.

[0034] The manufacture method of spar cap specifically comprises the following steps:

[0035] (1) First, apply a release agent on the main spar cap forming mold, then lay out process auxiliary materials such as release cloth and diversion net, and then lay the carbon fiber stitched fabric, and then lay on the carbon fiber stitched fabric in turn Put release cloth and other process auxiliary materials; ...

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Abstract

The invention discloses a carbon fiber fabric reinforced resin matrix composite girder cap for a fan blade and a manufacturing method thereof. The carbon fiber fabric reinforced resin matrix composite girder cap is composed of a carbon fiber stitch-bonded fabric reinforcing material and a glycidyl ester epoxy resin system. The requirements for laying efficiency and pouring efficiency of a vacuum absorption process are met, the requirement of the girder cap for carbon fiber dynamic performance utilization is well taken into consideration, and mechanical performance of a carbon fiber stitch-bonded fabric composite and structural strength of the carbon fiber fabric reinforced resin matrix composite girder cap are remarkably improved. By means of the vacuum absorption process and a solidification rule that process auxiliary materials are removed after medium-and-low-temperature pre-solidification and then medium-and-high-temperature solidification is carried out, the hidden risk that the process auxiliary materials are not resistant to medium and high temperature is overcome, and structural mechanical performance of the girder cap is effectively guaranteed.

Description

technical field [0001] The invention relates to a carbon fiber fabric reinforced resin-based composite spar cap and a manufacturing method thereof, in particular to a carbon fiber composite spar cap for fan blades and a manufacturing method thereof, belonging to the technical field of fan blade manufacturing. Background technique [0002] Composite fan blades are key components of wind power generation systems and directly affect the performance of the entire system. The main spar cap (also known as the girder) is the main load-bearing part of the blade. It is a product of large size and large thickness. It usually extends along the longitudinal length of the fan blade. Its design and manufacturing quality level are very important. At present, the materials and processes widely used in blade spar caps are mainly glass fiber stitched fabric reinforced resin-based composite materials and vacuum adsorption process (vacuum resin infusion). In recent years, with the development ...

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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IPC IPC(8): F03D11/00B29C70/34
CPCY02E10/722Y02E10/72Y02P70/50
Inventor 颜鸿斌
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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