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
2 Cites 9 Cited by

AI-Extracted Technical Summary

Problems solved by technology

There are currently no relevant patents or reports...
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

Method used

Blade root independent wind power blade root small mold 7,8 is on the basis of former wind power blade mould, i.e. main mould, then makes two sections of wind power blade moulds, is used for the prefabrication production of dry layup 3 and dry layup 2 , without taking up the time of the main mold. The shape of the mold 7 is completely consistent with that of the original wind power blade mold, so as to ensure that the shape of the prefabricated root is consistent with that of the original wind power blade. But the mold length is only about 3m. The...
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

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.

Application Domain

Technology Topic

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(1)

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 infused and molded and heated and cured.
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

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
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

Similar technology patents

Resistor manufacture device and production process thereof

InactiveCN102496434AGuaranteed quality and performanceReduce scrap rateResistor manufactureEngineeringProtection layer
Owner:李永祥 +2

Method for improving appearance quality of inertial porcelain ball

ActiveCN103242035ASolve Surface CracksReduce scrap rateWet grindingNew materials
Owner:JINGANG NEW MATERIALS

Classification and recommendation of technical efficacy words

  • Reduce scrap rate
  • Reduce time spent

Composite energy field heating method

ActiveCN105666896AReduce layeringReduce scrap rateAerospaceMicrowave cavity
Owner:CENT SOUTH UNIV

Method and device for managing list item of content addressable memory CAM

InactiveCN101620623AReduce time spentReduce cache requirementsData switching networksSpecial data processing applicationsContent-addressable storageTernary content addressable memory
Owner:NEW H3C TECH CO LTD
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