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Method and arrangement to manufacture a blade

一种布局结构、叶片的技术，应用在制造叶片领域，能够解决很差气味、危及人员健康等问题

Inactive Publication Date: 2012-07-11
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, styrene-based gel coats have a very bad smell and even endanger the health of those who handle the gel coat during blade manufacture
Therefore, additional personnel protection steps are required even at increased cost

Method used

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  • Method and arrangement to manufacture a blade
  • Method and arrangement to manufacture a blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The mold 2 used to build the blade structure is electrically neutrally grounded.

[0038] Electrostatic gun 1 is used to spray dry powder 5 to mold 2 .

[0039] The electrostatic gun 1 is connected to a pipeline 3 for at least supplying dry powder to the gun 1 .

[0040] Preferably (but not shown in detail here), the dry powder is additionally provided with a coating material as powdered particles.

[0041] The electrostatic gun 1 is also connected with the pipeline 4, and the pipeline 4 is used to generate an electrostatic field.

[0042] After the powder application process, the layers of the blade assembly (such as composite material, fiberglass material, balsa wood, etc.) are laid into the mold to obtain the three-dimensional structure of the blade. This can be done with the "Vacuum Assisted Resin Transfer Molding, VARTM" process to obtain the blade structure.

[0043] Preferably, the mold is heated and thus the applied dry powder is also heated. Dry powders liq...

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PUM

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Abstract

The invention relates to a method to manufacture a blade, especially to manufacture a blade of a wind turbine. A mould is provided and used to carry layers of blade-components. A dry-powder is applied at least to an inner surface of the mould, before the layers are arranged onto the inner surface of the mould. Thus the mould comprises a dry powder-coat as a bottom layer.

Description

technical field [0001] The invention relates to a method of manufacturing a blade, in particular a blade of a wind turbine. Background technique [0002] Blades, such as those of wind turbines, are subject to a variety of environmental influences, such as wear from UV rays, rain, ice, hail, and tiny particles in the passing wind. Even the wind acting on the blades creates mechanical loads on the blades. [0003] The blade, especially the surface of the blade, needs to withstand impact, so the surface of the blade is treated and processed. [0004] It is known to use paint on this surface to deal with the impacts acting on it. [0005] Preferably, the blade surface is coated with a spray gun. The spray gun can be part of an automated painting process or even used as a hand-held tool during manual work. A compressed gas such as air is used to bring the paint particles towards the blade surface. Thus, a uniform liquid coating is performed on the surface of the blade. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/36B05D1/12B29C35/02B29L31/08
CPCB29C2037/0039F03D1/065B29C37/0032Y02E10/721B29K2105/251B29C37/0067B29C37/0028Y02E10/72Y02P70/50
Inventor K.席布斯拜伊
Owner SIEMENS AG