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Manufacturing method of carbon fiber girder for fan blade

A fan blade and manufacturing method technology, applied in the field of wind power, can solve the problems that the appearance quality and mechanical properties of components cannot be well guaranteed, employees have many opportunities to directly contact resin, and environmental pollution is large, so as to reduce product defects and ensure appearance quality and mechanical properties, the effect of a simple method

Active Publication Date: 2012-10-31
GUODIAN UNITED POWER TECH LIANYUNGANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, large-scale carbon fiber composite parts are all made of prepreg. This kind of manufacturing method is complicated to operate and causes great environmental pollution. There are many opportunities for employees to directly contact resin, and the appearance quality and mechanical properties of the parts cannot be well guaranteed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, a kind of manufacturing method of carbon fiber beam for fan blade, its steps are as follows:

[0019] (1) Remove residual resin, dust and other sundries on the mold; paste several sealant strips on the side of the mold making area for bonding of vacuum bags and one-way breathable membranes;

[0020] (2) Wipe the release agent in the mold making area, control the temperature of the mold at 40-60°C to fully dry the release agent, and then preheat the mold to the required temperature for laying;

[0021] (3) Cut the release cloth, diversion net, and one-way breathable membrane into appropriate sizes for later use;

[0022] (4) Lay the lower guide net on the mold, and fix the edges of the lower guide net with sealant strips or spray glue, and then lay a release cloth on the lower guide net as a whole, and lay several layers of carbon fiber sheets on the release cloth. To keep the carbon fiber unidirectional cloth flat; the carbon fiber unidirectional cloth is...

Embodiment 2

[0027] Embodiment 2, a kind of manufacturing method of carbon fiber beam for fan blade, its steps are as follows:

[0028] (1) Remove residual resin, dust and other sundries on the mold; paste several sealant strips on the side of the mold making area for bonding of vacuum bags and one-way breathable membranes;

[0029] (2) Wipe the release agent in the mold making area, control the mold temperature to 50°C to fully dry the release agent, and then preheat the mold to the required temperature for laying;

[0030] (3) Cut the release cloth, diversion net, and one-way breathable membrane into appropriate sizes for later use;

[0031] (4) Lay the lower guide net on the mold, and fix the edges of the lower guide net with sealant strips or spray glue, and then lay a release cloth on the lower guide net as a whole, and lay several layers of carbon fiber sheets on the release cloth. To keep the carbon fiber unidirectional cloth flat; the carbon fiber unidirectional cloth is laid with...

Embodiment 3

[0036] Embodiment 3, in the manufacturing method of the carbon fiber girder for fan blade described in embodiment 1 or 2: the edges of the one-way air-permeable membrane are bonded and fixed with 3 sealant strips respectively, and the intervals between the 3 sealant strips are 3 -4cm.

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PUM

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Abstract

The invention relates to a manufacturing method of a carbon fiber girder for a fan blade, which is a carbon fiber vacuum pouring method. The manufacturing method comprises the following steps of: laying carbon fiber unidirectional cloth in a girder die according to the design requirement; laying a vacuum pouring auxiliary material according to the design requirement; carrying out sealing treatment by a carbon fiber girder covering vacuum bag; and vacuumizing, injecting glue and finally curing to obtain the carbon fiber girder. According to the invention, the method is simple and is convenient to operate; the production efficiency is effectively improved; the structure strength of a product is also ensured; and the appearance quality and the mechanical property of a composite material part are also ensured.

Description

technical field [0001] The invention relates to a method for manufacturing a carbon fiber girder for fan blades, belonging to the field of wind power. Background technique [0002] Carbon fiber composites have received extensive attention due to their high specific strength, high specific modulus and a series of excellent properties. In the prior art, large-scale carbon fiber composite parts are all made of prepreg. This manufacturing method is complicated to operate, causes great environmental pollution, and there are many opportunities for employees to directly contact the resin, which cannot well guarantee the appearance quality and mechanical properties of the parts. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for manufacturing a carbon fiber girder for fan blades with simple method, convenient operation and high structural strength for the deficiencies of the prior art. [0004] The technical p...

Claims

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Application Information

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IPC IPC(8): B29C70/34
Inventor 陶生金岳彦山林涛何明
Owner GUODIAN UNITED POWER TECH LIANYUNGANG CO LTD
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