Supercharge Your Innovation With Domain-Expert AI Agents!

Wind power blade pultrusion enhanced panel facilitating resin flowing and manufacturing method of wind power blade pultrusion enhanced panel

A technology for wind turbine blades and resin flow, applied in the field of pultrusion plates, can solve the problems of affecting the bonding strength of blade plates, the uniformity of resin infusion can not be self-balanced, and reduce the mechanical properties of blades, so as to reduce the risk of excessive or lack of glue, The effect of improving the uniformity of infusion and improving the bonding strength between layers

Pending Publication Date: 2019-05-10
上伟(江苏)碳纤复合材料有限公司
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resin cannot flow between the layers in the stacked area of ​​the pultruded sheet. When the amount of resin in some layers is too much and the amount of resin in some layers is missing, the uniformity of resin infusion cannot be self-balanced, thus affecting the bonding strength of the blade sheet. , reducing the mechanical properties of the blade

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
  • Wind power blade pultrusion enhanced panel facilitating resin flowing and manufacturing method of wind power blade pultrusion enhanced panel
  • Wind power blade pultrusion enhanced panel facilitating resin flowing and manufacturing method of wind power blade pultrusion enhanced panel
  • Wind power blade pultrusion enhanced panel facilitating resin flowing and manufacturing method of wind power blade pultrusion enhanced panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Figure 5 The first method of pultrusion showing the pre-curing stage:

[0035] S1. Stacking multiple layers of fiber sheets in parallel, infiltrating the stacked fiber sheets through the resin tank 6, so that the resin is immersed between the fiber sheets of each layer;

[0036] S2. The fiber sheet is pre-cured by the resin in the curing box 7, and the multi-layer fiber sheet is pre-cured into a layer of pultrusion board;

[0037] S3. The pre-cured pultruded sheet passes through the flow channel forming belt 8, and the punch 9 of the flow channel forming belt 8 squeezes the pultruded sheet on the left and right sides of the pultruded sheet to form several flow channels 3; The plate 2 is wound into a coil;

[0038] S4. Lay the multi-layer pultruded boards 2, and then infiltrate and solidify them into a pultruded reinforced board 1 through resin infiltration.

[0039] The length of the pultruded reinforced plate 1 can be infinitely extended theoretically, and can be s...

Embodiment 2

[0043] Image 6 It shows another method of pultruding the flow channel of the pultruded sheet in the pre-curing stage: the difference between this method and the first method is that in step S3: the pultruded sheet is passed through the flow channel while pre-curing The trough forming belt 8 and the flow trough forming belt 8 extrude the pultruded sheet on the left and right sides of the pultruded sheet 2 to form several flow troughs 3 . The convex mold forming side of the flow channel forming belt 8 is located in the curing box 7, which is convenient for forming the flow channel while pre-curing the pultruded sheet.

[0044] The method of reprocessing and forming in the post-curing stage may be to process flow grooves on the side of the pultruded sheet by means of compression molding, acid etching or grinding.

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

PropertyMeasurementUnit
Depthaaaaaaaaaa
Widthaaaaaaaaaa
Login to View More

Abstract

The invention provides a wind power blade pultrusion enhanced panel facilitating resin flowing. Two blade half faces are included and are pultrusion enhanced panel bodies. Each blade half face comprises a plurality of layers of mutually-stacked pultrusion panel bodies, wherein resin is poured between the multiple layers of pultrusion panel bodies, the side edges of the pultrusion panel bodies in the length direction are provided with a plurality of circulation holes, the circulation grooves penetrate through the pultrusion panel bodies in the thickness direction of the pultrusion panel bodies,and the resin can pass through the circulation grooves and flow between the various layers of pultrusion panel bodies. The invention further provides a manufacturing method of the pultrusion panel bodies. The side edges of the panel bodies are provided with forming belts with male dies for forming the circulation grooves. The circulation grooves are formed in the side edges of the pultrusion panel bodies, vacuum pouring resin can pass through the circulation grooves and flow between the various layers of pultrusion panel bodies, accordingly the resin amount between various layers is automatically balanced, the risk of excessive resin or resin shortage between the layers is reduced, the resin pouring uniformity is improved, the interlayer bonding strength of blade panels is improved, and the mechanical performance of a blade is improved.

Description

technical field [0001] The invention belongs to the technical field of pultrusion plates, and in particular relates to a wind power blade pultrusion reinforced plate which is beneficial to resin flow and a manufacturing method thereof. Background technique [0002] Wind power blades have requirements and trends for large-scale and lightweight blades. The use of carbon fiber pultruded sheets today makes it possible to increase the size and weight of blades. Wind power blades are made by connecting two half-surfaces of the blades to form a whole blade. Usually, the boards are pre-laid and stacked to make the boards the required length and thickness, and the resin is injected into the board layer by vacuum. The gaps between the boards and the interlayers of the boards ensure the overall bonding strength and mechanical properties of the boards. However, the resin cannot flow between the layers in the stacked area of ​​the pultruded sheet. When the amount of resin in some layers...

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): B29C70/52
CPCY02E10/72
Inventor 张舒张晨
Owner 上伟(江苏)碳纤复合材料有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com