Outside reinforcing, vacuum filling and heat curing molding process on front edge and back edge of blade

A technology of vacuum infusion and molding process, which is applied in the field of vacuum infusion thermosetting molding process for reinforcing the outer front and rear edges of the blade, can solve the problems of reducing the reliability of the blade, glue lumps, air bubbles, etc., so as to improve production efficiency, accelerate resin curing, reduce Reinforcing layering effect

Inactive Publication Date: 2013-06-12
CHONGQING GENERAL IND (GRP) LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

Due to quality defects such as delamination, air bubbles, and glue bumps in the hand-laid glass fiber cloth, the reliability of the

Method used

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  • Outside reinforcing, vacuum filling and heat curing molding process on front edge and back edge of blade

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.

[0014] a kind of like figure 1 The vacuum infusion thermosetting molding process for the outer reinforcement of the front and rear edges of the blade is shown. The steps of the process are: firstly lay a layer of glass fiber cloth on the reinforced part of the front and rear edges of the blade, and then vacuum infuse and heat curing molding.

[0015] The present invention mainly adopts the process of vacuum infusion heat curing to replace the traditional hand lay-up resin method to reinforce the front and rear edge of the blade. The reliability of the blade, while thermal curing can speed up the curing of the resin and improve the production efficiency of the blade.

[0016] Before laying the fiberglass cloth, it is cut according to the shape of the layer at the front and rear edges of the blade, and the size of the cut glass fiber cloth...

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Abstract

The invention discloses an outside reinforcing, vacuum filling and heat curing molding process on the front edge and back edge of a blade. The process comprises the following steps of: firstly laying glass fiber cloth at reinforcing parts on the front edge and back edge of the blade, and then performing vacuum filling and heating curing molding. By performing vacuum filling for outside reinforcement of the front edge and back edge of the blade, the quality defects of reinforcement layering, bubbles, adhesive fillets and the like on the front edge and back edge of the blade can be greatly reduced, and the reliability of the blade is improved; and simultaneously, the curing of resin can be accelerated by curing after heating, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a vacuum infusion thermosetting molding process for external reinforcement of front and rear edges of blades. Background technique [0002] Wind power blades are the key parts of wind turbines to effectively capture wind energy. The traditional external reinforcement of the front and rear edges of wind power blades is to soak glass fiber cloth with resin, then hand paste it to the reinforcement part, and then through natural curing to achieve external reinforcement. Purpose. Due to quality defects such as delamination, air bubbles, and glue bumps in the hand-laid glass fiber cloth, the reliability of the blade is greatly reduced. At the same time, the natural curing time is longer, which reduces the production efficiency of the blade. Contents of the invention [0003] In view of the deficiencies in the above-mentioned prior art, the present invention aims to provide a vacuum infusion thermosetting molding process for exter...

Claims

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Application Information

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IPC IPC(8): B29C70/36
Inventor 左昕刘玉辉
Owner CHONGQING GENERAL IND (GRP) LTD
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