Integral one-step molding technique of wind power blade

A molding process and technology for wind power blades, applied in the field of integral one-shot molding of wind power blades, can solve the problems of low strength, reduce the actual efficiency of blades, and affect the performance of composite materials, achieve high bearing capacity, eliminate the possibility of blade failure, and improve The effect of overall performance

Inactive Publication Date: 2010-05-12
JIANGSU JIUDING NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wind turbine blade technology is one of the key technologies of wind power generation systems. Traditional composite fan blades are formed by splitting and multi-steps, that is, the upper and lower shells of the blades and the main beam plate are made separately and then bonded together

Method used

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  • Integral one-step molding technique of wind power blade
  • Integral one-step molding technique of wind power blade

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Experimental program
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Embodiment Construction

[0014] Firstly prepare an upper shell mold and a lower shell mold, the contact surfaces of the upper shell mold and the lower shell mold have the same shape and structure, and can realize mold closing. Then prepare mandrel, diversion pipe, diversion net, web, girder cap, reinforcement material and sandwich material.

[0015] Heating devices are evenly distributed inside the molds of the upper shell mold and the lower shell mold for heating the molds.

[0016] Among the above-mentioned materials, the mandrel is an air bag mandrel, which is composed of a sealed air bag with vents, three of which are used in the present invention, and the shape after the air bag is inflated matches the shape of the inner profile of the blade; after the air bag is inflated, it can Bearing the weight of half a blade reinforcement without major deformation, it can shrink after deflation and be removed after molding. A vacuum bag is arranged on the outer surface of the air bag to surround the air ba...

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Abstract

The invention discloses an integral one-step molding technique of a wind power blade. The integral one-step molding technique is characterized in that the blade is molded by two steps, and one part of a molding blade of a lower die is used for die combination with the balance of molding part of an upper die so as to form the whole wind power blade. The integral one-step molding technique of the wind power blade has the advantages that an integral molding composite material blade shell has continuous glass fiber at the joint of an upper shell and a lower shell, thus greatly improving the whole performance of the blade; the blade shell is a closed structure, thus having higher bearing capability; therefore, the integral one-step molding technique can lighten the weight of a main beam of a main bearing part, and simultaneously and thoroughly eliminate the failure possibility of the blade caused by bonding quality.

Description

technical field [0001] The invention relates to a one-time forming process of wind power blades, in particular to a wind power blade in which the main blade is made of glass fiber reinforced material, the outer surface structure of the upper and lower blades is obtained by a mold, the inner cavity is obtained by an air bag method, and the overall blade is formed by mold clamping. One-time forming process of the blade as a whole. technical background: [0002] Wind turbine blade technology is one of the key technologies of wind power generation systems. Traditional composite fan blades are formed by splitting and multi-steps, that is, the upper and lower shells of the blades and the main beam plate are made separately and then bonded together. Due to the bonding of the upper and lower shells The strength of the joint is low, and the cracking of the joint has become one of the important quality problems of the blade, which affects the full performance of the composite material...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/54
Inventor 顾清波姜鹄崔佰君储开明
Owner JIANGSU JIUDING NEW MATERIAL CO LTD
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