Integrated infusion molding method for front and rear edge flanges and shell of wind turbine blade

A technology of infusion molding and front and rear edges, which is applied in the direction of sustainable manufacturing/processing, climate sustainability, and other household appliances, can solve the problems of not meeting the requirements of the overall production of blades, stable quality fluctuations, and human health hazards. Ensure long-term stable development, continuous and stable output, and the effect of improving production efficiency

Active Publication Date: 2011-06-15
东方电气(天津)风电叶片工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional production method has high requirements on the operator's operation level, and the stable quality is greatly affected by the external environment.
The production cycle is long, the effic...

Method used

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  • Integrated infusion molding method for front and rear edge flanges and shell of wind turbine blade
  • Integrated infusion molding method for front and rear edge flanges and shell of wind turbine blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] Injection molding method of front and rear edge flanging of wind power blade and shell integrally

[0052] 1) Material and mold preparation

[0053] ●Stack the front and rear edge flanging fiber cloth layer by layer according to the design structure, and use a small amount of spray glue, yarn, etc. to bind and fix.

[0054] ●Wrap the front and rear edge flanging molds with soft auxiliary materials and mark them with serial numbers. It is required that there are no sharp objects on the surface that can puncture the vacuum bag.

[0055] ●Cut the release cloth, diversion net, and isolation film into appropriate sizes for later use.

[0056] 2) Material placement

[0057] ●After laying the shell fiber cloth, place the front and rear edge flanging fiber cloth in the correct position according to the design of the blade, and use a small amount of spray glue to fix it.

[0058] ●Put the release cloth, diversion net and isolation film of appropriate size in the correct posi...

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Abstract

The invention discloses an integrated infusion molding method for front and rear edge flanges and a shell of a wind turbine blade, which comprises the following steps of: preparing materials and a mold; laying the materials and arranging the mold; laying a second layer of vacuum bag; infusing parts; and trimming the parts. Through technical innovation, the parts which are separately manufactured originally are fused into a whole through a vacuum infusion technology, so that efficiency is improved, energy is saved, environment is protected and the stability of the structural quality is ensured. The new technology avoids hidden trouble of instable quality. The dimension is stable and provides guarantee for subsequent adhesion. The method is little influenced by external environment, and ensures continuous and stable output. The material utilization rate can be further improved and the cost of 8,400,000 RMB can be saved. The production efficiency is improved; and the infusion mode is adopted, personnel is prevented from contacting resin and an adhesive, energy is saved, environment is protected and the long-term stable development of a worker team is ensured. The method is easy to operate, the service life of the mold is prolonged, the mold loss is nearly zero, and the mold investment cost is reduced.

Description

technical field [0001] The invention belongs to a manufacturing method of a wind power generation blade, in particular to a method for integrally pouring the front and rear edge flanging of the wind power generation blade and a casing. Background technique [0002] The traditional production methods of the front and rear edge flanging of wind power blades are mainly three methods: hand lay-up preforming and subsequent bonding, direct hand lay-up to the shell, and wet bag pressure-assisted molding. [0003] Hand lay-up preforming followed by bonding method is easy to operate, requires simple tools and equipment, and is easy to get started. However, due to the limitation of the production method, it is easy to damage the original design structure of the front and rear edges of the blade, and the product quality is affected by external factors. It is very large, so that there is a quality hidden danger in the blade; in addition, the material waste of this method is relatively l...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29L31/08
CPCB29L2031/085Y02P70/50
Inventor 邓树斌
Owner 东方电气(天津)风电叶片工程有限公司
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