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Prefabricated part, prefabricated part mold, wind power blade and manufacturing method of wind power blade

A technology of prefabricated parts and molds, which is applied in the manufacture of wind power blades and wind power blades, prefabricated part molds, and prefabricated parts. Molding rate, the effect of improving the pouring effect

Pending Publication Date: 2020-09-29
SINOMATECH WIND POWER BLADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a prefabricated part, a prefabricated part mould, a wind power blade and a manufacturing method of a wind power blade to solve the technical problem in the prior art that the bottom layer and the surface layer cannot be permeated quickly when the prefabricated part is poured

Method used

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  • Prefabricated part, prefabricated part mold, wind power blade and manufacturing method of wind power blade
  • Prefabricated part, prefabricated part mold, wind power blade and manufacturing method of wind power blade
  • Prefabricated part, prefabricated part mold, wind power blade and manufacturing method of wind power blade

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Effect test

Embodiment 1

[0039] Please also refer to Figure 1 to Figure 4 , the preform provided by the present invention is now described. The preform includes a body 1 . The prefabricated part is generally a fiber-reinforced composite material formed by at least fiber material and resin material. It is formed by heating or curing at room temperature. The prefabricated part can be a blade root prefabricated part with a curved surface, a beam prefabricated part, a web The shape and size of the body 1 of the skin prefabricated part or the prefabricated part of other parts can be adjusted according to the specific prefabricated shape. The fiber material can be one or a combination of glass fiber, carbon fiber, wood fiber, synthetic fiber, etc., and the resin material is also a perfusion material, which can be one or a combination of thermosetting or thermoplastic materials such as epoxy resin and polyester. The blade root prefabricated part may also include bolt connection parts (such as bolt sleeves...

Embodiment 2

[0052] Please also refer to Figure 1 to Figure 4 , the preform mold provided by the present invention is now described. The preform mold includes a mold 2, the mold 2 has an upper surface and a lower surface, wherein the main surface of the mold 2 generally refers to the upper surface of the mold 2, and the upper surface of the mold 2 is processed and shaped to adapt to the preform The profile of the lower surface, that is, different prefabricated parts correspond to different molds 2, and the shape of the upper surface of the mold 2 can be prefabricated into different shapes according to different prefabricated parts, for example, the prefabricated part can be a blade root prefabricated part with an arc surface , the upper surface of the mold 2 is a curved surface.

[0053] The upper surface of the mold 2 is protruded with a raised portion 21 for forming the strip-shaped groove, and the raised portion 21 extends from one end of the mold 2 toward the other end of the mold 2 ...

Embodiment 3

[0062] Please also refer to Figure 1 to Figure 6 , the method for manufacturing the preform provided by the present invention will now be described. The manufacturing method of described preform comprises the steps:

[0063] S101, laying the lower layer material on the preform mold as described in embodiment 2, and laying a vacuum bag on the lower layer material;

[0064] Among them, the material of the lower layer generally includes a reinforcing material layer, a compensation layer, a release cloth and a flow guide system. Among them, the reinforcing material layer is generally a glass fiber cloth layer or a carbon fiber cloth layer or a mixed fiber material cloth layer. 1 to 3 layers, the compensation layer is generally preferably selected as a biaxial layer, and the release cloth and the guide cloth are generally the release cloth and the guide cloth commonly used in the prior art. Of course, according to the actual situation and specific needs, the compensation layer o...

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Abstract

The invention provides a prefabricated part, a prefabricated part mold, a wind power blade and a manufacturing method of the wind power blade. One strip-shaped groove is formed in the lower surface ofa prefabricated part body and can extend from one end of the prefabricated part body to the other end of the prefabricated part body so that during subsequent blade machining and molding, poured resin materials can flow along the strip-shaped groove; a protruding part is directly arranged on the prefabricated part mold in a protruding mode, when a prefabricated part is machined, the strip-shapedgroove can be directly formed in the bottom of the prefabricated part body, secondary machining of the prefabricated part can be avoided, the influence on the performance of fibers on the lower surface of the prefabricated part body is avoided, and the machining process is simpler, so that the production cost of the prefabricated part is reduced; and the pouring speed and the pouring effect can beimproved, and the problem that a bottom layer cannot be completely poured through when pouring is carried out from top to bottom is solved, so that the possibility that a cloth layer is whitened is reduced, and the molding rate is increased.

Description

technical field [0001] The invention relates to the technical field of blade manufacturing, and in particular to a prefabricated part, a prefabricated part mold, a wind power blade and a method for manufacturing the wind power blade. Background technique [0002] With the large-scale development of wind power blades, modular manufacturing is the mainstream trend in the future. At present, the blade root, main beam, and trailing edge reinforced beam have been produced in advance to form prefabricated parts, and finally the prefabricated parts and remaining layers of each part are placed in the main mold for integral injection molding. Prefabrication of part of the structure in advance can reduce the number of manufacturing defects in the final molded part and effectively improve the molding efficiency of the main mold. In the prior art, the method of permeating and pouring from the surface of the blade shell to the bottom surface is generally adopted during infusion molding....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/70B29C33/42B29L31/08
CPCB29C33/42B29C70/70B29C2033/422B29L2031/085
Inventor 唐金钱周妮娜王向东张登刚
Owner SINOMATECH WIND POWER BLADE
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