CN101670643A - Hot runner carbon fiber direct-shaping technique of vanes of wind driven generator - Google Patents
Hot runner carbon fiber direct-shaping technique of vanes of wind driven generator Download PDFInfo
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- CN101670643A CN101670643A CN200910182600A CN200910182600A CN101670643A CN 101670643 A CN101670643 A CN 101670643A CN 200910182600 A CN200910182600 A CN 200910182600A CN 200910182600 A CN200910182600 A CN 200910182600A CN 101670643 A CN101670643 A CN 101670643A
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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
The present invention relates to a kind of hot runner carbon fiber direct-shaping technique of blade of wind-driven generator, belong to technical field of wind power generating equipment.
Background technology
Serious day by day along with the world energy sources crisis, and the public grows to even greater heights for the cry that requires of improving the ecological environment, wind energy is subjected to the attention of national governments day by day as a kind of regenerative resource of cleaning.At present, the whole world has 50 countries to issue the relevant laws and regulations of supporting the regenerative resource development approximately, and crucial effects has been played in development to wind-powered electricity generation, and the wind-power electricity generation industry just progressively develops into the new industry that begins to take shape.
The TRT that wind-driven generator is made up of blade, transmission system, generator, energy storage device, pylon and electric system etc.Blade is the parts of the most basic and most critical in the wind-driven generator, and its good design, quality and superior performance are the deciding factors that guarantees the normal stable operation of wind power generating set reliably.Rugged environment and ceaselessly running for a long time have the requirement of blade: (1) light specific gravity and have best fatigue resistance and mechanical performance, can stand the test of exceedingly odious condition such as storm wind and random load; (2) inertia and the vibration frequency characteristic curve thereof in the elasticity of blade, when rotation are all normal, and the steady load that passes to the whole generating system is good; (3) performance of corrosion-resistant, ultraviolet irradiation and thunderbolt is good; (4) cost of electricity-generating is lower, and maintenance cost is minimum.
The Airfoil Design of blade, version directly influence the performance and the power of wind-driven generator, are the keys in the wind-driven generator design process.Because the size of fan blade is big, complex contour, and the precision prescribed height, surface roughness is low, strength and stiffness are high, Mass Distribution good uniformity etc., makes the blade forming technology become the bottleneck that the restriction wind-power electricity generation is greatly developed.
Along with improving constantly of wind-power electricity generation acc power, the tower seat of generator and the composite material blade of seizure wind energy are installed are done increasingly.In order to guarantee generator operation steadily and tower seat safety, not only require the light weight of blade, also require the Mass Distribution of blade must be evenly, the precise control of appearance and size precision, serviceability is reliable for a long time.If will satisfy above-mentioned requirements, need corresponding moulding process and guarantee.
The conventional composite materials fan blade adopts hand to stick with paste the technology manufacturing more.The major defect that hand is stuck with paste the explained hereafter fan blade is: (1) production efficiency is low, uniform in quality is bad, the static and dynamic equilibrium of product assurance property is poor, percent defective is higher, particularly to pneumatic external form of high performance complexity and sandwich structure blade, also often need secondary operations such as bonding, production technology is complicated and difficult more; (2) since in the hand paste process inhomogeneous, the fiber/resin of gel content soak into bad and solidify not exclusively etc., regular meeting causes that problems such as crackle, fracture and distortion in use appear in fan blade.Therefore, external high-quality composite wind turbine blade often adopts Polyurethane reaction injection molding (Reaction Injection Molding at present, RIM), resin transfer moulding (Resin Transfer Molding, RTM), winding and prepreg/heat pressing process manufacturing, wherein the RIM technology investment is bigger, the production in enormous quantities (＞5000 slices/year) of suitable small-medium size fan blade; The production (5000～30000 slices/year) of the medium batch of the suitable small-medium size fan blade of RTM technology, it belongs to semimechanized composite material process planning; Twine and the suitable large fan blade batch process of prepreg/heat pressing process.
The producer of domestic production wind-driven generator is numerous, but performance, the technical merit of product are uneven, be the plain edition wind power generating set that the simple hand of performance is stuck with paste the technological forming fan blade mostly, simultaneously because the cost of fan blade is higher, cause the cost of wind-driven generator high, squeezing into the international market is subjected to serious restriction.
Summary of the invention
The hot runner carbon fiber direct-shaping technique that the purpose of this invention is to provide a kind of blade of wind-driven generator.
For achieving the above object, the technical solution used in the present invention is: a kind of hot runner carbon fiber direct-shaping technique of blade of wind-driven generator, mainly form by matched moulds, injection, Bao Mo and die sinking step, in the described injecting step, raw material enters in the mold cavity from least five nozzles after the fusion in hot flow path; Described at least five nozzles are arranged along the length direction of mold cavity; End increases progressively 1 ℃～5 ℃ to the temperature of each nozzle raw material of flowing through from the blade tip end of corresponding blade of wind-driven generator to blade root, and all is positioned at the temperature range of raw materials melt state.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described raw material mainly is made up of the raw material of following weight portion:
Nylon 6 68～70 weight portions;
Carbon fiber 29～31 weight portions.
2, in the such scheme, described nozzle is five, holds to blade root from the blade tip end of corresponding blade of wind-driven generator by the temperature of each nozzle raw material to be followed successively by: 211 ℃～213 ℃, 216 ℃～218 ℃, 220 ℃～221 ℃, 224 ℃～226 ℃, 229 ℃～231 ℃.
3, in the such scheme, form mold cavity behind die and the punch matched moulds, the profile of this mold cavity and blade of wind-driven generator is complementary, the blade tip end of the corresponding blade of wind-driven generator of an end of mold cavity, the blade root end of the corresponding blade of wind-driven generator of the other end.
3, in the such scheme, the fusion in hot flow path of described raw material is meant the fusion of the major ingredient (plastics or rubber) in the raw material, be not meant the fusion of the reinforcing material (carbon fiber, glass fibre) in the raw material, even raw material is heated as fluid state in hot flow path.
Principle of the present invention is: traditional injection molding technique, be trapped in behind the melt cooling curing in the running gate system as waste material, and increase raw materials consumption, reduced stock utilization.Hot runner injection molding is as the injection molding important development direction of tradition, and its maximum characteristics are that the plastics in the running gate system can not solidify, can be with the plastic demoulding yet, thus improved the utilization rate of material.So-called hot runner injection molding is meant the injector nozzle is heated to the runner between the sprue gate, make the plastics in the running gate system remain molten condition, thereby guarantee that the melt that is trapped in the running gate system can be used for injection moulding next time, rather than take out as waste material after the condensation.The typical heat flow passage system comprises nozzle, hot runner manifold, heating element heater, sensor and temperature controller etc.Have heating element heater on its nozzle, temperature control is accurate.
Related content in the technique scheme is explained as follows:
Because the technique scheme utilization, the present invention compared with prior art has following advantage and effect:
1, the present invention adopts hot runner carbon fiber industry control straight forming blade of wind-driven generator method, and the blade that has characteristics such as high accuracy, high mechanical properties, high tenacity, corrosion-resistant, high life and length and be 2 meters can be realized PC control one-shot forming.
2, the present invention uses hot runner carbon fiber industry control straight forming method moulding blade of wind-driven generator, and after the vane group that makes was dressed up wind-driven generator, it is little that wind-driven generator has a starting wind velocity, the energy transformation ratio height, volume is little, and weight alleviates greatly, power increases, the characteristics of environmental protection.
3, hot runner carbon fiber industry control straight forming method of the present invention can make fault rate, construction cost, the maintenance cost of the current wind-power electricity generation development of influence significantly reduce, and the input and output ratio is increased substantially.
The specific embodiment
Below in conjunction with embodiment the present invention is further described:
Embodiment one: a kind of hot runner carbon fiber direct-shaping technique of blade of wind-driven generator
A kind of hot runner carbon fiber direct-shaping technique of blade of wind-driven generator, 2 meters long blade of wind-driven generator of moulding, one piece material needs 5 kg feed material, and the prescription of raw material is as follows: 3.4 kilograms of nylon 6 (trade mark is nylon 1013B), 1.6 kilograms on carbon fiber.Behind die and the punch matched moulds, with PC (computer) control flow, nylon 6 drives carbon fiber and enters in the mold cavity from five nozzles in the raw material after the fusion in hot flow path; Described five nozzles are arranged along the length direction of mold cavity, hold to blade root from the blade tip end of corresponding blade of wind-driven generator by the temperature of each nozzle raw material to be followed successively by: 211 ℃～213 ℃, 216 ℃～218 ℃, 220 ℃～221 ℃, 224 ℃～226 ℃, 229 ℃～231 ℃.Protect mould then and make melt forming about 32 seconds, last die sinking pickup.Get product after the vanes surface treatment that obtains.
Embodiment two: a kind of hot runner carbon fiber direct-shaping technique of blade of wind-driven generator
A kind of hot runner carbon fiber direct-shaping technique of blade of wind-driven generator, 2 meters long blade of wind-driven generator of moulding, one piece material needs 5 kg feed material, and the prescription of raw material is as follows: 3.45 kilograms of nylon 6 (trade mark is nylon 1013B), 1.5 kilograms on carbon fiber, 0.05 kilogram of toner.Behind die and the punch matched moulds, with PC (computer) control flow, nylon 6 drives carbon fiber and enters in the mold cavity from 10 nozzles in the raw material after the fusion in hot flow path; Described 10 nozzles are arranged along the length direction of mold cavity, hold to blade root from the blade tip end of corresponding blade of wind-driven generator by the temperature of each nozzle raw material to be followed successively by: 212 ℃, 215 ℃, 218 ℃, 221 ℃, 224 ℃, 227 ℃, 230 ℃, 232 ℃, 234 ℃, 236 ℃.Protect mould then and make melt forming about 32 seconds, last die sinking pickup.Get product after the vanes surface treatment that obtains.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1, a kind of hot runner carbon fiber direct-shaping technique of blade of wind-driven generator, mainly form by matched moulds, injection, Bao Mo and die sinking step, it is characterized in that: in the described injecting step, raw material enters in the mold cavity from least five nozzles after the fusion in hot flow path; Described at least five nozzles are arranged along the length direction of mold cavity; End increases progressively 1 ℃～5 ℃ to the temperature of each nozzle raw material of flowing through from the blade tip end of corresponding blade of wind-driven generator to blade root, and all is positioned at the temperature range of raw materials melt state.
2, the hot runner carbon fiber direct-shaping technique of blade of wind-driven generator according to claim 1 is characterized in that: described raw material mainly is made up of the raw material of following weight portion:
Nylon 6 68～70 weight portions;
Carbon fiber 29～31 weight portions.
3, the hot runner carbon fiber direct-shaping technique of blade of wind-driven generator according to claim 2, it is characterized in that: described nozzle is five, holds to blade root from the blade tip end of corresponding blade of wind-driven generator by the temperature of each nozzle raw material to be followed successively by: 211 ℃～213 ℃, 216 ℃～218 ℃, 220 ℃～221 ℃, 224 ℃～226 ℃, 229 ℃～231 ℃.
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| CN2009101826003A CN101670643B (en) | 2009-09-17 | 2009-09-17 | Hot runner carbon fiber direct-shaping technique of vanes of wind driven generator |
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| CN2009101826003A CN101670643B (en) | 2009-09-17 | 2009-09-17 | Hot runner carbon fiber direct-shaping technique of vanes of wind driven generator |
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| CN101670643A true CN101670643A (en) | 2010-03-17 |
| CN101670643B CN101670643B (en) | 2012-05-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069175A (en) * | 2010-07-15 | 2013-04-24 | 富士通将军股份有限公司 | Propeller fan and production method for same |
| CN103144228A (en) * | 2013-03-11 | 2013-06-12 | 连云港中复连众复合材料集团有限公司 | Manufacture method of mould for manufacturing wind turbine blade with baffle ring at root |
| CN104890186A (en) * | 2014-03-06 | 2015-09-09 | 群达塑胶电子（深圳）有限公司 | Injection mold and molding method |
| CN105235240A (en) * | 2015-10-28 | 2016-01-13 | 无锡阳工机械制造有限公司 | Technological manufacturing process for blades of wind turbine generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058236A (en) * | 2007-06-05 | 2007-10-24 | 江苏新誉风力发电设备有限公司 | Method for manufacturing fiberglass blade of megawatt wind power generator |
-
2009
- 2009-09-17 CN CN2009101826003A patent/CN101670643B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069175A (en) * | 2010-07-15 | 2013-04-24 | 富士通将军股份有限公司 | Propeller fan and production method for same |
| CN103069175B (en) * | 2010-07-15 | 2015-11-25 | 富士通将军股份有限公司 | Propeller type fan and manufacture method thereof |
| US9316233B2 (en) | 2010-07-15 | 2016-04-19 | Fujitsu General Limited | Propeller fan and manufacturing method thereof |
| CN103144228A (en) * | 2013-03-11 | 2013-06-12 | 连云港中复连众复合材料集团有限公司 | Manufacture method of mould for manufacturing wind turbine blade with baffle ring at root |
| CN103144228B (en) * | 2013-03-11 | 2014-12-17 | 连云港中复连众复合材料集团有限公司 | Manufacture method of mould for manufacturing wind turbine blade with baffle ring at root |
| CN104890186A (en) * | 2014-03-06 | 2015-09-09 | 群达塑胶电子（深圳）有限公司 | Injection mold and molding method |
| CN105235240A (en) * | 2015-10-28 | 2016-01-13 | 无锡阳工机械制造有限公司 | Technological manufacturing process for blades of wind turbine generator |
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| CN101670643B (en) | 2012-05-23 |
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Assignee: Suzhou Zhonggu Mould Co., Ltd. Assignor: Zhong Qunming Contract record no.: 2012320010042 Denomination of invention: Hot runner carbon fiber direct-shaping technique of vanes of wind driven generator License type: Exclusive License Open date: 20100317 Record date: 20120321 |
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Assignee: Suzhou Zhonggu Mould Co., Ltd. Assignor: Zhong Qunming Contract record no.: 2012320010042 Date of cancellation: 20170508 |
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Effective date of registration: 20170519 Address after: 215134 Fengyang village, Weitang Town, Suzhou, Jiangsu, Xiangcheng District Patentee after: Suzhou well Precision Machinery Engineering Co., Ltd. Address before: 215132 No. 2 Industrial Zone, Huangqiao Town, Jiangsu, Suzhou Patentee before: Zhong Qunming |
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