Thin shell cabin cover die for wind-driven generator and manufacturing method thereof

Abstract

The invention relates to a thin shell cabin cover die for a wind-driven generator and a manufacturing method thereof. The thin shell cabin cover die comprises a bottom die and an upper die, wherein the bottom die is a male hard die; and the upper die is formed by integrating a female hard die which is matched with the bottom die and a silica gel soft die coated on the forming surface of the female hard die. The invention provides a die which is used for manufacturing a large-sized glass fiber reinforced plastic structure and takes the silica gel soft die as the upper die, so that consumable materials and labor force are saved, the edge of the manufactured large-sized glass fiber reinforced plastic thin shell is smooth and regular, secondary processing is not required, a large amount of production cost is saved, and environmental pollution is avoided.

Description

technical field [0001] The invention relates to a mold for a thin shell nacelle cover of a wind power generator and a manufacturing method thereof, belonging to equipment for wind power generators. Background technique [0002] Since the current vacuum introduction process commonly used in the market is to lay the fiber material on the bottom mold and then lay the vacuum guide net, release cloth and embedded sealant strip, although this method solves the inevitable quality problems of the product by manual operation, But it brings a waste of auxiliary materials and a lot of man-hours. Now most of the wind turbine nacelle covers are made by vacuum introduction technology. Considering the social comprehensive economic benefits and environmental effects, this is a rather amazing figure. Take the production of a 1.5MW wind turbine nacelle cover as an example. Disposable consumables reach about 2,700 yuan. At present, the installed capacity of wind power generators in my country ...

AI Technical Summary

Problems solved by technology

[0002] Since the current vacuum introduction process commonly used in the market is to lay the fiber material on the bottom mold and then lay the vacuum guide net, release cloth and embedded sealant strip, although this method solves the inevitable quality problems of the product by manual operation, But it brings a waste of auxiliary materials and a lot of man-hours

Now most of the wind turbine nacelle covers are made by vacuum introduction technology. Considering the social comprehensive economic benefits and environmental effects, this is a rather amazing figure. Take the production of a 1.5MW wind turbine nacelle cover as an example. Disposable consumables reach about 2,700 yuan. At present, the installed capacity of wind power generators in my country is growing at an average annual rate of 2,000 MW, which means that the annual consumption of vacuum imported disposable consumables is worth 3.6 million yuan, not including the manpower and material resources for processing these consumables. The cost and the environmental impact of manufacturing. In addition, because the upper mold of the current vacuum-introduced mold is formed with a release cloth, the inner surface of the product is not smooth, and the repair work of the flange edge is relatively large. There is also more labor time for cloth and embedding the weatherstrip

In addition, because the buckling performance of large FRP thin shell structures is very sensitive to initial geometric defects, a small amount of deformation will cause a decline in overall performance. However, the existing molds for making large FRP thin shell structures generally have the problem of inaccurate mold dimensions. It has a great influence on the quality of the thin-shell nacelle cover of the wind turbine

[0003] Silicone film mold can be used repeatedly for 200-300 times without any auxiliary materials, which can save a lot of production costs and prevent environmental pollution. However, the traditional concept is that silicone film is only suitable for small products in the fields of handicrafts and medical equipment. Such a large and complex thin-shell product of the wind turbine nacelle cover has not yet been able to use silicone membranes to manufacture due to the current technological level not meeting the requirements.

Images