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

A technology of wind power generator and molding process, applied in the direction of coating, etc., can solve problems such as difficulties, uneven glue content, incomplete curing, etc., and achieve an increase in input-output ratio, high energy conversion rate, and reduced maintenance costs Effect

Active Publication Date: 2010-03-17
苏州浩威尔精密机械工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: A hot runner carbon fiber direct molding process for wind turbine blades

[0025] A hot-runner carbon fiber direct molding process for wind turbine blades. To form a 2-meter-long wind turbine blade, 5 kilograms of raw materials are required for one piece of material. The raw material formula is as follows: 3.4 kilograms of nylon 6 (the brand is nylon 1013B), 1.6 kilograms of carbon fiber . After the concave mold and the convex mold are closed, the flow rate is controlled by a PC (computer). After the nylon 6 in the raw material is melted in the hot runner, the carbon fiber is driven into the mold cavity from five nozzles; the five nozzles are along the length direction of the mold cavity. Arranged, the temperature of raw materials passing through each nozzle from the tip of the corresponding wind turbine blade to the root of the blade is as follows: 211°C~213°C, 216°C~218°C, 220°C~221°C, 224°C~226°C, 229°C ~231°C. Then hold the mold for about 32 seconds to ...

Embodiment 2

[0026] Example 2: A hot runner carbon fiber direct molding process for wind turbine blades

[0027] A hot-runner carbon fiber direct molding process for wind turbine blades. To form a 2-meter-long wind turbine blade, 5 kilograms of raw materials are required for one piece of material. The raw material formula is as follows: 3.45 kilograms of nylon 6 (the brand is nylon 1013B), 1.5 kilograms of carbon fiber , 0.05 kg of toner. After the concave mold and the convex mold are closed, the flow rate is controlled by a PC (computer). After the nylon 6 in the raw material is melted in the hot runner, the carbon fiber is driven into the mold cavity from 10 nozzles; the 10 nozzles are along the length direction of the mold cavity. Arranged, the temperature of raw materials passing through each nozzle from the tip of the corresponding wind turbine blade to the root of the blade is as follows: 212°C, 215°C, 218°C, 221°C, 224°C, 227°C, 230°C, 232°C, 234°C , 236°C. Then hold the mold for ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/27B29C45/46B29C45/78B29K77/00
Inventor 钟群明
Owner 苏州浩威尔精密机械工程有限公司
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