Hot runner carbon fiber direct-shaping technique of vanes of wind driven generator

Abstract

The invention discloses a hot runner carbon fiber direct-shaping technique of vanes of a wind driven generator, which is implemented by steps of die assembly, injection, die maintenance and die sinking. In the injection step, raw materials fused in hot runner enter into the die cavity from at least five nozzles; the five nozzles are arranged along the length direction of the die cavity; the temperature of the raw materials passing through each nozzle is gradually increased by 3-5 DEG C from tip of the vane to the root of the vane of the wind driven generator correspondingly, ranging within thetemperature scope of fusion state of the raw materials.

Description

technical field [0001] The invention relates to a hot-runner carbon fiber direct molding process for blades of wind power generators, and belongs to the technical field of wind power generation equipment. Background technique [0002] As the world's energy crisis becomes more and more serious, and the public's demand for improving the ecological environment is increasing, wind energy, as a clean and renewable energy source, is increasingly valued by governments. At present, about 50 countries around the world have promulgated relevant laws and regulations to support the development of renewable energy, which have played a vital role in the development of wind power. The wind power industry is gradually developing into a new industry that has begun to take shape. [0003] Wind turbine is a power generation device composed of blades, transmission system, generator, energy storage equipment, tower and electrical system. The blade is the most basic and critical part of the wind...

AI Technical Summary

Problems solved by technology

The main disadvantages of fan blades produced by hand lay-up process are: (1) Low production efficiency, poor product quality uniformity, poor dynamic and static balance assurance of products, and high scrap rate, especially for high-performance complex aerodynamic shapes and sandwich cores Structural blades often require secondary processing such as bonding, and the production process is more complicated and difficult; (2) due to uneven glue content, poor fiber / resin infiltration and incomplete curing during the hand lay-up process, it often causes fan blades to be damaged. There are problems such as cracks, breakage and deformation during use

[0007] There are many domestic manufacturers of wind turbines, but the performance and technical level of the products are uneven. The cost of machine remains high, and entering the international market is severely restricted