CN101429948B - Air cooling fan blade and manufacturing method thereof - Google Patents
Air cooling fan blade and manufacturing method thereof Download PDFInfo
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- CN101429948B CN101429948B CN2008102438053A CN200810243805A CN101429948B CN 101429948 B CN101429948 B CN 101429948B CN 2008102438053 A CN2008102438053 A CN 2008102438053A CN 200810243805 A CN200810243805 A CN 200810243805A CN 101429948 B CN101429948 B CN 101429948B
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Abstract
The invention relates to an air cooler blade and a manufacturing method thereof. The air cooler blade has a multilayered structure which comprises a lower protective layer, a lower cloth layer, a solid layer, a central cloth layer, a bonding layer, an upper cloth layer and an upper protective layer in turn, wherein the upper protective layer and the lower protective layer are made of weathering-resistant nano materials with a thickness of 0.5 millimeter, so that the anti-ageing service life of the product at a temperature of between 40 DEG C below zero and 120 DEG C reaches more than 30 years; lower cloth, central cloth and upper cloth are glass fiber cloth; the solid layer adopts the streamline form, and the inside of the solid layer is provided with a reticulated rib frame, so that the solid layer has high strength, toughness and strong natural wind resistance; and the bonding layer is made of aromatic hydrocarbon, platinum fibers and polyester and added with noble metals, so that the bonding layer has light weight and high strength. The method for manufacturing the air cooler blade comprises the following steps of preparation of a die, laying of materials, die stamping and hot setting, constant-temperature curing, and demoulding and shaping, guarantees the product quality, reduces the labor force, saves the investment, and can be used for mass production.
Description
Technical field:
The present invention relates to a kind of fan blade and manufacturing approach thereof, especially relate to a kind of air-cooled fan blade and manufacturing approach thereof.
Background technology:
Blade is the most basic and most important parts in the air cooling blower fan, and its good design, reliable quality and superior performance are the deciding factors that guarantees the operation of air cooling blower fan normal and stable.Rugged environment and ceaselessly running for a long time have the requirement of blade: light specific gravity and have best fatigue strength and mechanical performance, can stand exceedingly odious condition and the tests of load at random such as storm wind.More large-scale blade generally adopts the hybrid composite of fiberglass or carbon fiber and glass fibre, and resin matrix is main with epoxy.At present, the air-cooled fan blade of main flow is a fiberglass blade, and generally at blade surface coating; But China does not still have the glass fiber reinforced plastic surface coating of corrosion resistant, good weatherability at present; Still adopt common nitro spraying lacquer at blade surface, in the steam ambient of water that is corrosive, generally can only turn round 5000 hours; The surface coating fluffing that promptly comes off influences service life of blade.
The manufacturing firm of present domestic fan blade adopts the wet method hand to stick with paste technology owing to receive the influence of aspects such as market, technology, material and fund mostly, and isothermal curing is realized producing in batches.Its wet method hand paste technology is simple relatively, does not need the warming and pressurizing device, does not need tooling device.But when shortcomings such as this explained hereafter efficient is low, labour intensity big, labour health condition is poor, product quality is wayward, stability is not high, the product mechanical property is lower, this technology can only be used to produce length of blade usually than short and small lot batch manufacture.But for large-scale air-cooled fan blade, because the blade build is bigger, manual pasting forming process can't be competent at.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, provide a kind of in light weight, intensity is high, anti-natural wind ability is strong, the air-cooled fan blade and the manufacturing approach thereof of long service life.
The present invention realizes through following technical scheme: a kind of air-cooled fan blade, be sandwich construction, and its sandwich construction is followed successively by lower protective layer, following layer of cloth, physical layer, middle layer of cloth, bonding coat, goes up layer of cloth, goes up protective layer.Upward protective layer and lower protective layer are that the thick nanometer weatherable materials of 0.5mm is processed, and product anti-aging time limit in 40 degrees below zero Celsius to the environment of 120 degree Celsius was reached more than 30 years; Its following layer of cloth, middle layer of cloth, last layer of cloth are the thick glass fabric of 0.1mm; This physical layer is streamlined and set inside has netted muscle frame, and this muscle frame is that netted alloy fiber material is processed, and have high strength toughness, and anti-natural wind ability is strong; This bonding coat is that the polyester of three layers aramid fiber, platinum composite fibre and three layers is formed and is added with precious metal and overlaps and form; This precious metal is a silver; It is in light weight, intensity is high thereby make, and the polyester in said physical layer and bonding coat is for adopting import high strength unsaturated-resin.
A kind of manufacturing approach of air-cooled fan blade comprises the steps:
(A) preparation of mould: shape and size according to air-cooled fan blade are prepared corresponding mould;
(B) in mould, lay lower protective layer, following layer of cloth, and laying the alloy fiber frame on the layer of cloth down; On the alloy fiber frame, inject polyester again and soak into, layer of cloth on polyester, laying, and on middle layer of cloth, be equipped with bonding coat; Lay layer of cloth on the bonding coat, laying protective layer on the last layer of cloth;
(C) envelope film emptying: film cloth is placed on the mould, and makes mould and film cloth bonding, utilized the vavuum pump deaeration 5-15 minute, make it reach vacuum;
(D) mold pressing thermosetting: with electrically heated mode with mold heated to the 60-80 degree, and the pressure that is pressurised into the 45-55 ton through hydraulic press is on die cover, the time of pressing solidly is 1.5-2.5 hour;
(E) thermostatic curing: at mould is to place 3.5-4.5 hour in the constant temperature of 40-50 degree;
(F) demoulding shaping: with blade and mold separation, and begin finished edge, make its smooth surface, smooth from lifting the position;
Further, in said step (C), envelope film emptying time is 10 minutes; In said step (D), with mold heated to 70 degree, and be pressurised into 50 tons pressure on die cover with electrically heated mode through hydraulic press, the time of pressing solidly is 2 hours; In said step (E),, placed 4 hours by mould in being the constant temperature of 45 degree.
The present invention compared with prior art has the following advantages: in light weight, intensity is high, anti-natural wind ability is strong, long service life, improved the bearing capacity of blade, its manufacturing approach is easy, because under vacuum pressure; Make the infiltration step more perfect, given full play to the effect of material, guaranteed product quality; Improved production efficiency; Reduced the labour, economized on the use of funds, can be used for producing in enormous quantities.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Label among the figure: layer of cloth, 5-bonding coat, the last layer of cloth of 6-, the last protective layer of 7-among layer of cloth, 3-physical layer, the 4-under 1-lower protective layer, the 2-.
The specific embodiment:
As shown in Figure 1: a kind of air-cooled fan blade, be sandwich construction, its sandwich construction is followed successively by lower protective layer 1, following layer of cloth 2, physical layer 3, middle layer of cloth 4, bonding coat 5, goes up layer of cloth 6, goes up protective layer 7.Should go up protective layer 7 and lower protective layer 1 and process, product anti-aging time limit in 40 degrees below zero Celsius to Celsius 120 environment of spending was reached more than 30 years for the thick nanometer weatherable materials of 0.5mm; Its lower floor's cloth 2, middle layer cloth 4, upper strata cloth 6 are the thick glass fabric of 0.1mm; This physical layer 3 is streamlined and set inside has netted muscle frame 8, and this muscle frame 8 is processed by netted alloy fiber material, makes it have high strength toughness, and anti-natural wind ability is strong; This bonding coat 5 be the polyester of three layers aramid fiber, platinum composite fibre and three layers form and be added with precious metal, advanced industrial chemicals overlaps and forms, and makes its tension intensity reach 560Mpa, impact strength 90kj/m2, hardness Barcol 51 degree.Polyester in said physical layer and bonding coat is for adopting import high strength unsaturated-resin.
A kind of manufacturing approach of air-cooled fan blade comprises the steps:
(A) preparation of mould: shape and size according to air-cooled fan blade are prepared corresponding mould;
(B) in mould, lay lower protective layer 1; Following layer of cloth 2, and laying alloy fiber muscle frame 8 on the layer of cloth 2 down, on alloy fiber muscle frame 8, inject polyester again and soak into; Layer of cloth 4 on polyester, laying; And on middle layer of cloth 4, lay bonding coat 5, laying layer of cloth 6 on the bonding coat 5, on last layer of cloth 6, lay protective layer 7;
(C) envelope film emptying: film cloth is placed on the mould, and makes mould and film cloth bonding, utilized the vavuum pump deaeration 5-15 minute, make it reach vacuum;
(D) mold pressing thermosetting: with electrically heated mode with mold heated to the 60-80 degree, and the pressure that is pressurised into the 45-55 ton through hydraulic press is on die cover, the time of pressing solidly is 1.5-2.5 hour;
(E) thermostatic curing: at mould is to place 3.5-4.5 hour in the constant temperature of 40-50 degree;
(F) demoulding shaping: with blade and mold separation, and begin finished edge, make its smooth surface, smooth from lifting the position;
Further, in said step (C), envelope film emptying time is 10 minutes; In said step (D), with mold heated to 70 degree, and be pressurised into 50 tons pressure on die cover with electrically heated mode through hydraulic press, the time of pressing solidly is 2 hours; In said step (E),, placed 4 hours by mould in being the constant temperature of 45 degree.
Claims (10)
1. air-cooled fan blade; Be sandwich construction; It is characterized in that: said sandwich construction is followed successively by lower protective layer (1), following layer of cloth (2), physical layer (3), middle layer of cloth (4), bonding coat (5), goes up layer of cloth (6), goes up protective layer (7); Said physical layer (3) has netted muscle frame (8) for streamlined and set inside, and said bonding coat (5) is aramid fiber, platinum composite fibre and polyester composition and is added with precious metal.
2. according to the said a kind of air-cooled fan blade of claim 1, it is characterized in that: said lower protective layer (1) and last protective layer (7) are processed for the thick nanometer weatherable materials of 0.5mm.
3. according to the said a kind of air-cooled fan blade of claim 1, it is characterized in that: said following layer of cloth (2), middle layer of cloth (4), last layer of cloth (6) are the thick glass fabric of 0.1mm.
4. according to the said a kind of air-cooled fan blade of claim 1, it is characterized in that: the polyester in said physical layer (3) and the bonding coat (5) is an import high strength unsaturated-resin.
5. according to the said a kind of air-cooled fan blade of claim 1, it is characterized in that: said muscle frame (8) is netted alloy fiber material.
6. according to the said a kind of air-cooled fan blade of claim 1, be characterised in that: said bonding coat (5) is that the polyester of three layers aramid fiber, platinum composite fibre and three layers overlaps and forms, and said precious metal is an ag material.
7. the manufacturing approach of an air-cooled fan blade is characterized in that, comprises the steps:
(A), the preparation of mould: shape and size according to air-cooled fan blade are prepared corresponding mould;
(B), in mould, lay lower protective layer (1); Following layer of cloth (2), and go up at following layer of cloth (2) and to lay netted alloy fiber muscle frame (8), go up at alloy fiber muscle frame (8) again and inject the fluid polyester; Layer of cloth (4) on the fluid polyester, laying; And, on bonding coat (5), lay layer of cloth (6) at the last bonding coat (5) of laying of middle layer of cloth (4), on last layer of cloth (6), lay protective layer (7);
(C), envelope film emptying: film cloth is placed on the mould, and makes mould and film cloth bonding, utilized the vavuum pump deaeration 5-15 minute, make it reach vacuum;
(D), the mold pressing thermosetting: with electrically heated mode with mold heated to the 60-80 degree, and the pressure that is pressurised into the 45-55 ton through hydraulic press is on die cover, the time of pressing solidly is 1.5-2.5 hour;
(E), thermostatic curing: at mould is to place 3.5-4.5 hour in the constant temperature of 40-50 degree;
(F), demoulding shaping: with blade and mold separation, and begin finished edge, make its smooth surface, smooth from lifting the position.
8. according to the manufacturing approach of the said a kind of air-cooled fan blade of claim 7, it is characterized in that: in said step (C), envelope film emptying time is 10 minutes.
9. according to the manufacturing approach of the said a kind of air-cooled fan blade of claim 7, it is characterized in that: in said step (D), with mold heated to 70 degree, be forced into 50 tons pressure on die cover with hydraulic press, and pressed solidly 2 hours with electrically heated mode.
10. according to the manufacturing approach of the said a kind of air-cooled fan blade of claim 7, it is characterized in that: in said step (E), in mould is the constant temperature of 45 degree, placed 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008102438053A CN101429948B (en) | 2008-12-15 | 2008-12-15 | Air cooling fan blade and manufacturing method thereof |
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| CN2008102438053A CN101429948B (en) | 2008-12-15 | 2008-12-15 | Air cooling fan blade and manufacturing method thereof |
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| CN101429948A CN101429948A (en) | 2009-05-13 |
| CN101429948B true CN101429948B (en) | 2012-02-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20180320706A1 (en) * | 2017-05-04 | 2018-11-08 | General Electric Company | Composite airfoil with metal strength |
| CN107163612A (en) * | 2017-07-12 | 2017-09-15 | 北京中能金瀚能源技术有限公司 | Polymer composite and application |
| CN111779705B (en) * | 2020-07-23 | 2021-06-08 | 吉林大学 | Fiber composite material fan blade based on bionic laying structure |
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2008
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| US7179517B2 (en) * | 2000-10-03 | 2007-02-20 | Structural Polymer Systems Ltd. | Sheet moulding compound (SMC) with ventilating structure for entrapped gases |
| CN2628612Y (en) * | 2003-01-08 | 2004-07-28 | 张学贵 | Chlorine-oxygen-magnesium composite thermal insulation plate |
| CN101011874A (en) * | 2007-01-22 | 2007-08-08 | 浙江大学 | Lightening fire resistant polymer porous membrane laminated composite material and manufacturing method thereof |
| CN101274489A (en) * | 2007-03-29 | 2008-10-01 | 上海德惠特种风机有限公司 | Manufacturing method for glass fibre reinforced plastic blower |
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| 于柏峰 黄力刚 耿岩 王玲.复合材料风机转子叶片制造工艺的评价.纤维复合材料.2007,(3),全文. * |
| 周俊旭 张林文 邹宇知.大型风力发电机复合材料叶片研制探索.第十五届玻璃钢/复合材料学术年会论文集.2003,全文. |
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Granted publication date: 20120229 Termination date: 20121215 |