Special HME fiber glass for wind turbine blades

A technology of fiberglass and wind turbine blades, which can be used in wind power generation, wind engines consistent with the wind direction, wind engines, etc., and can solve environmental pollution and other problems

Inactive Publication Date: 2010-08-04
JIANGSU JIUDING NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, it is closely related to the elastic modulus and depends on the composition of the glass and its format

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Wind turbine blade HME fiberglass is composed of the following components by mass percentage: SiO 2 : 59%; TiO 2 : 0.5%; Al 2 o 3 : 13%; Fe 2 o 3 : 0.3%; CaO: 22.5%; LiO 2 : 0.2%; MgO: 3%; WO 3 : 0.5%; CeO 2 : 0.5%, NaO 2 : 0.5%; K 2 O: 0.5%.

[0010] The raw materials containing the above components are prepared by the following process to produce HME fiberglass for wind power blades. The specific process is as follows:

[0011] Raw material preparation: (taking 1000g of HME fiberglass as an example): 101g of quartz sand, 655g of pyrophyllite, 339g of limestone, 132g of dolomite, 5g of lithium carbonate, and 5g of cerium oxide; Then, the above-mentioned raw materials are added to the tank kiln and melted at a temperature of 1460°C to become liquid glass fibers; then, the liquid glass fibers are conventionally drawn by a wire drawing machine, and the drawing temperature is 1250°C. After the wire drawing is completed, it is conventional doffing, dipping, maki...

Embodiment 2

[0017] Process is identical with embodiment 1, and component mass percent is: SiO 2 : 59.2%; TiO 2 : 1%; Al 2 o 3 : 13.2%; Fe 2 o 3 0.3%; CaO: 22.2%; LiO 2 : 0.2%; MgO: 3.2%; CeO 2 : 0.2%.

[0018] The product was tested in a pilot test, and the data results after the pilot test were compared with EC-R glass and a patent number (4026715) in the United States. The data are as follows:

[0019] Element

EC-R(%)

US Patent 4026715(%)

Jiuding 2 (%)

SiO 2

55.6-56.5

57.7

59.2

al 2 o 3

11.4-11.6

11.4

13.2

CaO

17.7-21.9

21.5

22.2

MgO

1.0-4.3

2.0

3.2

Fe 2 o 3

0.25

0.1

0.3

Na 2 o

0.9

1.0

0.32

K 2 o

0.15

--

0.18

TiO 2

3.4-3.5

2.3

1

LiO 2

--

--

0.2

WO 3

--

--

--

CeO 2

--

--

0.2

Zno

5.3

3.9

--- ...

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PUM

PropertyMeasurementUnit
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Abstract

The invention relates to special HME fiber glass for wind turbine blades, which is mainly prepared by mixing SiO2, Al2O3, Fe2O3, CaO, MgO, NaO2 and K2O according to the proportion; and the special HME fiber glass is characterized in that the following components are added in the components by weight percent: 0.3-2.5% of TiO2, 0.1-0.6% of LiO2, 0-0.8% of WO3, and 0.1-0.6% of CeO2. The special HME fiber glass takes the SiO2, the Al2O3, the CaO and the like as the main components, further adds four important auxiliary components of the TiO2, the LiO2, the WO3 and the CeO2, and mainly uses the TiO2 for replacing B2O3 and F2 which are conventional in alkali-free glass fiber, thereby realizing the environment-friendly property; the WO3 is used selectively, so as to improve the elastic modulus and the acid resistance of the special HME fiber glass for the wind turbine blades while ensuring the cost; particularly, the SiO2 is selected to be more than 58%, so as to improve the high-temperature viscosity of the glass. In short, the special HME fiber glass for the wind turbine blades produced by using the components has the advantages of high elastic modulus, high requirement on product rigidness, good acid resistance and good insulation performance.

Description

technical field [0001] The invention relates to a special HME fiber glass for wind power blades, in particular to a composition of organosilicon compounds, which can be melted to produce high-modulus HME fiber glass special for wind power blades. Background technique [0002] The rapid quenching of glass from the molten state will cause some properties related to composition and structure in the fiber to be lower than those of glass block, the density will drop by 2%, the refractive index will drop by 0.15%-0.4%, and the elastic modulus will drop by 7%-25%. Within the range, the size of the above data depends on the size of the bulk glass elastic modulus. At present, the elastic modulus of E glass and E-CR glass at home and abroad are 72Gpa and 80Gpa respectively, and there is no glass whose elastic modulus exceeds 84Gpa. The glass fiber used in the production of wind power blades requires high elastic modulus of glass fiber, high product rigidity, good acid resistance and ...

Claims

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Application Information

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IPC IPC(8): C03C13/02F03D1/06F03D3/06
CPCY02E10/72Y02E10/721Y02E10/74C03C3/087C03C3/095C03C13/00
Inventor 姜鹄梁中全彭斌许瑞存程海琴刘锡辉
Owner JIANGSU JIUDING NEW MATERIAL CO LTD
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