Method for molding composite material wind power blade root

A technology of wind turbine blades and composite materials, which is applied to other household appliances, household appliances, household components, etc., can solve the problems of composite materials without related patents and reports, and achieve the effects of shortening the production cycle, improving the overall cost performance, and shortening the occupation time

Active Publication Date: 2012-06-27
LUOYANG SUNRUI WIND TURBINE BLADE
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are currently no relevant patents or reports

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for molding composite material wind power blade root
  • Method for molding composite material wind power blade root
  • Method for molding composite material wind power blade root

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] An application example of the root forming of a large composite wind power blade with a length of 50m and a width of 5m.

[0029] The blade root has a total of 120 layers, and 70 layers are prefabricated with a small mold. The process description is as follows:

[0030] 1. Make a small root mould (0-3.6m);

[0031] 2. Lay the 40th to 110th layers of blades in a small mold;

[0032] 3. Lay auxiliary materials on the upper layer of the small mold layer;

[0033] 4. Establish a vacuum sealing system on the small mold;

[0034] 5. Vacuum infusion molding of 70 layers of small mold and heat curing;

[0035] 6. Release and save the 70-layer preform of the small mold;

[0036] 7. Carry out the 1st~39th layer of fiber layup in the mold of the lower shell and upper shell of the blade;

[0037] 8. Put the demolded preform into the shell mold;

[0038] 9. Continue to place the 111th~120th layer in the shell mold;

[0039] 10. The lower shell and the upper shell are vacuum infus...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for molding a composite material wind power blade root. The method is characterized by comprising the following steps of: making independent wind power blade root small molds for the blade root, laying a bottom fiber dry course of the wind power blade root by means of the larger small mold, and laying a middle fiber dry course of the wind power blade root by means of the smaller mold; constructing vacuum systems in the small molds to form prefabricated products; putting the he prefabricated products into a wind power blade molding die sequentially; continuously laying an upper layer glass fiber dry course; and integrally pouring the upper layer glass fiber dry course and the prefabricated products by vacuum pouring molding, and thus obtaining a final wind power blade product. According to the novel method for molding the composite material wind power blade root, the rejection rate of blade products is reduced, the die holding time is shortened, the production cycle is shortened, and the product quality is improved, so that the overall cost performance of the blade products is improved.

Description

technical field [0001] The invention relates to a technology in the field of composite material forming technology, in particular to a composite material wind power blade root forming method. Background technique [0002] Wind turbine blades are mainly made of fiber-reinforced resin-based composite materials. The structure of wind turbine blades is mainly divided into lower shell, upper shell, girder, and web. The length of the blade can be divided into two parts: root and tip. The part connected to the rotor can be called the blade root and the part away from the root can be called the blade tip. Depending on the design of the blade, the length of the blade within 15m can also be called the root. The manufacturing process of wind power blades is: the lower shell, upper shell, girder, and web of the blade are respectively vacuum infused in independent moulds; the principle of vacuum infusion molding process is: laying dry fiber layers in the mould, Resin flow medium is l...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B29C70/34B29L31/08
Inventor 黎华林明姜志超王满昌
Owner LUOYANG SUNRUI WIND TURBINE BLADE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap