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Construction method of waterborne polyurethane coating on wind power blade

A technology of water-based polyurethane and wind power blades, which is applied to household components, household appliances, and other household appliances. It can solve the problems of low efficiency and long time consumption, and achieve fast and reliable operation, simple operation, and accelerated drying.

Pending Publication Date: 2020-08-25
MEGA P&C ADVANCED MATERIALS SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In view of the time-consuming and low-efficiency problems of the existing coating process of polyurethane coatings on wind power blades, a new coating method for the surface coating of wind power blades is urgently needed to improve the production efficiency of wind power blades

Method used

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Embodiment Construction

[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] In this example, the water-based polyurethane coating is applied on the inner surface of the mold before the blade is not completed, and the residual temperature of the front blade mold is used for heating or the heating equipment of the mold to accelerate the drying of the water-based polyurethane coating, which greatly improves the wind power blade. Productivity.

[0030] The construction method of water-based polyurethane coating on wind power blades provided in this example, the specific operation steps are as follows:

[0031] 1. Coating release agent

[0032] The inner surface of the female mold of the blade is coated with a release agent, and the next step is performed after the release agent dries.

[0033] 2. Apply water-based po...

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Abstract

The invention discloses a construction method of waterborne polyurethane coating on a wind power blade. The waterborne polyurethane coating is coated on the inner surface of a blade mold before the mold is not filled with resin, heating is carried out by using the residual temperature after demolding of the previous blade or heating equipment of the mold, and drying of the waterborne polyurethanecoating is accelerated. The main construction process of the method comprises that a mold release agent is coated in the blade mold; after the mold release agent is dried, the waterborne polyurethanecoating is directly coated in a blade female mold coated with the mold release agent; after the waterborne polyurethane coating is dry, glass fiber cloth is laid on the surface of the coating; epoxy resin is poured into the blade female mold in vacuum, and heating and curing are carried out; and after the curing of the epoxy resin is finished, the blade can be demolded from the female mold. According to the construction method of the waterborne polyurethane coating on the wind power blade, the operation is simple, rapid and reliable, the production efficiency of the wind power blade is greatlyimproved, and manpower and material resources and energy are saved.

Description

technical field [0001] The invention relates to the technical field of wind power blade coating, in particular to a construction method of water-based polyurethane paint on wind power blades. Background technique [0002] Since the working environment of wind power blades is generally the seaside or sandy desert areas, they will be eroded by atmospheric corrosion, ultraviolet rays, sand dust, lightning, heavy rain, and ice and snow. Therefore, the blade coating used to protect the blade base material is particularly important. [0003] The main steps of the common wind turbine blade forming process in the industry are as follows: [0004] 1. Coating release agent in the blade female mold; [0005] 2. Lay glass fiber cloth in the female mold of the blade shell; [0006] 3. Vacuum infusion of epoxy resin and heat curing; [0007] 4. After the curing is completed, the blades are demoulded; [0008] 5. After demoulding, the detailed steps of coating the blade shell are as fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/60B29C70/34B29C70/54B29L31/08
CPCB29C33/60B29C70/342B29C70/54B29L2031/082
Inventor 罗永键刘正伟
Owner MEGA P&C ADVANCED MATERIALS SHANGHAI CO LTD
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