CN201785646U

CN201785646U - Biaxial glass fiber composite material textile

Info

Publication number: CN201785646U
Application number: CN2010202931503U
Authority: CN
Inventors: 周廷才; 王志强; 刘福生
Original assignee: KUNSHAN HUAFENG COMPOSITES CO Ltd
Current assignee: KUNSHAN HUAFENG COMPOSITES CO Ltd
Priority date: 2010-08-16
Filing date: 2010-08-16
Publication date: 2011-04-06
Anticipated expiration: 2020-08-16

Abstract

The utility model discloses a biaxial glass fiber composite material textile, which comprises a first yarn layer and a second yarn layer, wherein the first yarn layer is formed by glass fiber net yarns in a positive 45-degree direction; and the second yarn layer is formed by glass fiber net yarns in a negative 45-degree direction. The biaxial glass fiber composite material textile is characterized by the further inclusion of a third yarn layer and a fourth yarn layer; the third yarn layer is formed by glass fiber net yarns in a positive 45-degree direction; the fourth yarn layer is formed by glass fiber net yarns in a negative 45-degree direction; the first to fourth yarn layers are sequentially overlapped and are bound into a whole by binding yarns; and the glass fiber net yarns are formed by knitting epoxy type glass fiber high-strength yarns. During use, the effect can be realized by only paving one layer of biaxial glass fiber composite material textile instead of traditionally paving two layers of EKB800 cloth; by adopting the epoxy type glass fiber high-strength yarns as knitting materials, the knitted composite material has high density and strength; meanwhile, by adding the gram weight of each square meter, the gram weight can achieve 1,600g and the tensile strength and the tensile modulus can be improved; and the biaxial glass fiber composite material textile provided by the utility model has the advantages of high production efficiency, low production cost and short production period.

Description

Twin shaft is to the glass fiber composite material fabric

Technical field

The utility model relates to a kind of braided fabric, what be specifically related to is that a kind of twin shaft is to the glass fiber composite material fabric.

Background technology

The high strength glass fiber fabric is widely used industries such as Aeronautics and Astronautics, wind-power electricity generation, automobile, pleasure boat manufacturing, petroleum pipeline.Itself and resin collocation can be made high-intensity fiberglass, and the characteristics that this fiberglass is compared iron and steel are: intensity is higher, and weight is lighter, and corrosion resistance is better.

In wind-power electricity generation, glass fabric is the raw material of the maximum most critical of consumption during wind power generation blade is made, and it is mainly used in the MW class wind turbine group, as: blades such as 1MW, 1.5MW.2MW.

Because the blade manufacturing technique requirent, thus glass fabric have single shaft to, twin shaft to, arrange in pairs or groups and finish the blade desirable strength to, several series product such as unidirectional with multiaxis.And existing twin shaft to the glass fiber composite material fabric as usual product E KB800 (the composite code name has EKT, EKB, EKU, EKQ and UD, and wherein, E refers to the E glass fibre, and k refers to braided fabric, and B refers to bilayer, T refer to three layers of Q refer to four layers of .U refer to single shaft to.For example: EKB1600, refer to that fabric is formed by the braiding of 45/90/-45 degree direction, 1600 refer to the grammes per square metre of the every square meter of fabric) generally adopt positive 45 degree glass fibre grenadines to constitute first layer, the bundled yarn formation that negative 45 degree glass fibre grenadines constitute second layer and first and second layers are tied to one, the grammes per square metre of this braided fabric is 800g, the twin shaft of this structure to glass fiber composite material fabric practice in wind-power electricity generation, its TENSILE STRENGTH is big inadequately, stretch modulus is low, fabric does not reach specified standard grammes per square metre, thereby make the blade of making to satisfy the wind power plant necessary requirement, even in use equipment is caused damage.

The utility model content

At the deficiency that exists on the prior art, it is to be to provide a kind of production cycle little that the utility model provides purpose, and the twin shaft that cost is low and TENSILE STRENGTH is big makes the blade of making satisfy the wind power plant necessary requirement to the glass fiber composite material fabric.

To achieve these goals, the utility model is to realize by the following technical solutions:

Twin shaft is to the glass fiber composite material fabric, it comprises that the glass fibre grenadine of positive 45 degree directions constitutes first layer and the negative 45 glass fibre grenadines of spending directions constitute second layer, it is characterized in that it comprises that also the positive 45 glass fibre grenadines of spending directions constitute the 3rd layer and the negative 45 glass fibre grenadines of spending directions constitute the 4th layer; Described first to fourth layer superposes successively and is tied to one by bundled yarn, and described glass fibre grenadine is to be formed by the braiding of epoxy type glass fibre high strength yarns, has improved TENSILE STRENGTH and stretch modulus.

Aforesaid twin shaft is to the glass fiber composite material fabric, and wherein, the filament diameter of described epoxy type glass fibre high strength yarns is 17 μ m.

Aforesaid twin shaft is to the glass fiber composite material fabric, and wherein, described twin shaft can heavily be 1600g to every square metre of glass fiber composite material fabric.

The utility model has increased the glass fiber mesh layer of positive and negative 45 degree again on the basis of old product EKB800, make that its intensity is higher; Only need shop this twin shaft of one deck can reach the effect of spreading two-layer EKB800 cloth before in use to the glass fiber composite material fabric, and adopted epoxy type glass fibre high strength yarns as braided material, the composite density that is woven is also closeer, intensity is higher, increasing every square metre simultaneously can weigh, make grammes per square metre reach 1600g, improve TENSILE STRENGTH and stretch modulus, it has production efficiency height, production cost is low, the production cycle is little advantage.

Description of drawings

Describe the utility model in detail below in conjunction with the drawings and specific embodiments;

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.

Embodiment:

Referring to Fig. 1, present embodiment provides a kind of twin shaft to the glass fiber composite material fabric, be following indication new product EKB1600, the glass fibre grenadines that the glass fibre grenadines that they glass fibre grenadines that comprise that the glass fibre grenadines of positive 45 degree directions constitute first layer 1, negative 45 degree directions constitute second layer 2, positive 45 degree directions constitute the 3rd layer 3 and negative 45 degree directions constitute the 4th layer 4; This first layer 1, second layer 2, the 3rd layer 3 and four layers 4 superpose successively and by bundled yarn it are tied to one, promptly second layer 2 is added on first layer 1, the 3rd layer 3 is added on second layer 2, and the 4th layer 4 is added on the 3rd layer 3.Wherein, above-mentioned glass fibre grenadine all is to be that material braiding forms by epoxy type glass fibre high strength yarns, thereby makes the stability of its product and quality be higher than industry standard far away.

What deserves to be mentioned is, the filament diameter of this epoxy type glass fibre high strength yarns increases to 17 μ m, and its braiding apparatus door width of cloth (width) is 40 pin/rice, and the equipment that makes can bear the production after fabric can heavily be thickeied, and then the twin shaft that is woven is also closeer to the glass fiber composite material Density, and intensity is higher.

For further setting forth the present invention, by Shanghai Frp Research Institute of national fiberglass research institution through with the general EKB800 product contrast test of industry after draw to draw a conclusion, see Table 1 (in the table, new product EKB1600 product is that twin shaft of the present invention is to the glass fiber composite material fabric):

The general EKB800 products characteristics of industry:	New product EKB1600 products characteristics:
		TENSILE STRENGTH: 88MPa	TENSILE STRENGTH: 124MPa
Stretch modulus: 9.2GPa	Stretch modulus: 14.8GPa
		45 ° of TENSILE STRENGTH: 270MPa	45 ° of TENSILE STRENGTH: 410MPa
45 ° of stretch modulus: 21GPa	45 ° of stretch modulus: 27.5GPa

Table 1

More than detecting data carries out with reference to ISO 527-1997 standard.

From table 1, can draw, the utility model in applying to the large-scale wind generating blade as: when 37.5 meters 1.5MW blade, 43.5 meters 2MW blade, its TENSILE STRENGTH, stretch modulus, be much higher than the industry like product, as KEB800, in addition, production efficiency improves nearly one times than the old product production capacity, client's production cost is lowered greatly, and the production cycle significantly reduces, from the sales volume of further raising product.

Based on above-mentioned, the utility model is owing to changed its basketry (row are compiled), the 3rd layer 3, the 4th layer 4 of positive and negative 45 degree have been increased again, make its every square metre can heavily be increased to present 1600g by original 800g, thereby make output on original basis, increase by 1 times, and the waste material that produces is identical with old product, has improved output greatly.

Simultaneously, it is material that the utility model adopts epoxy type glass fibre high strength yarns, makes that the grammes per square metre of fabric is higher, has improved TENSILE STRENGTH and stretch modulus, makes the stability of its product and quality be higher than industry standard far away.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. twin shaft is to the glass fiber composite material fabric, it comprises that the glass fibre grenadine of positive 45 degree directions constitutes first layer and the negative 45 glass fibre grenadines of spending directions constitute second layer, it is characterized in that it comprises that also the positive 45 glass fibre grenadines of spending directions constitute the 3rd layer and the negative 45 glass fibre grenadines of spending directions constitute the 4th layer; Described first layer, second layer, the 3rd layer and the 4th layer superpose successively and are tied to one by bundled yarn, and described glass fibre grenadine is to be formed by the braiding of epoxy type glass fibre high strength yarns.

2. twin shaft according to claim 1 is characterized in that to the glass fiber composite material fabric filament diameter of described epoxy type glass fibre high strength yarns is 17 μ m.

3. twin shaft according to claim 1 is characterized in that to the glass fiber composite material fabric described twin shaft is 1600g to every Gram Mass of glass fiber composite material fabric.