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Casting method for manufacturing a work piece

一种工件、模具腔的技术，应用在制造风力涡轮机转子叶片领域，能够解决难闻气味等问题

Inactive Publication Date: 2012-01-11
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one of the difficulties involved with the use of polyester resins is that the resin has a very unpleasant odor, both for new castings and used workspaces

Method used

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  • Casting method for manufacturing a work piece
  • Casting method for manufacturing a work piece
  • Casting method for manufacturing a work piece

Examples

Experimental program
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Embodiment Construction

[0019] Will now refer to figure 1 with figure 2 An embodiment of the present invention is described. The size of the objects in the figure is chosen for clarity and does not necessarily reflect the relative size.

[0020] figure 1 A cross-sectional view of a closed mold for manufacturing a wind turbine rotor blade is schematically shown. In order to manufacture wind turbine rotor blades, glass fibers, preferably multiple glass fiber layers 4 are prepared in a mold. The mold includes an upper mold element 1, a lower mold element 2 and a core element 3.

[0021] First, multiple glass fiber layers 4 are laid into the lower mold element 2. After that, the core element 3 is laid on the glass fiber layer 4 in the lower mold element 2. After that, multiple glass fiber layers 4 are laid on the core element 3 and prepared around the core element 3. Then, the mold is closed by fitting the upper element 1 to the lower mold element 2.

[0022] The closed mold including the lower mold elem...

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PUM

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Abstract

A method for manufacturing a work piece is disclosed. The method comprises the steps of: preparing fibreglass (4) in a mould (1, 2); preparing a closed mould cavity (7) around the fibreglass (4); flushing the closed mould cavity (7) with an oxygen-free gas; injecting resin in the closed mould cavity (7); and curing the casted work piece. Furthermore, a work piece manufactured by the inventive method is described.

Description

Technical field [0001] The present invention relates to a method for manufacturing a workpiece, and in particular to a method for manufacturing a wind turbine rotor blade. It also relates to workpieces, such as wind turbine rotor blades. Background technique [0002] A large number of workpieces, particularly workpieces including laminated structures, such as wind turbine rotor blades, are usually manufactured by casting resin into a closed mold with glass fiber laminates. One resin that can be used to manufacture workpieces such as wind turbine rotor blades is polyester resin. Polyester resin is a very easily castable resin that can be used for glass fiber laminates for wind turbine rotor blade production. By adding a certain amount of catalyst to control the curing time of the resin. However, one of the difficulties related to the use of polyester resins is that this resin has a very unpleasant odor, also for new castings and used workspaces. Summary of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/30B29C39/02B29L31/08F03D80/00
CPCB29C70/48B29L2031/085B29C2791/005B29K2709/04Y02E10/722Y10T428/31645Y10T29/49336Y10T29/49337Y10T29/4998Y10T29/49982Y10T29/49984Y02E10/72Y02P70/50B29C39/10B29C31/04
Inventor K.席布斯拜
Owner SIEMENS AG