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Low-boron fluorine-free glass fiber composition

A technology of glass fiber and composition, which is applied in the field of low boron and fluorine-free glass fiber composition, can solve problems such as the decline of pyrophyllite quality, achieve the effects of reducing sulfur content, improving production and operation efficiency, and reducing energy consumption

Inactive Publication Date: 2016-01-06
TAISHAN FIBERGLASS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And with the expansion of the production line, the output continues to increase, and the pressure on the area of ​​the pyrophyllite ore raw material storage area is also increasing. At the same time, the quality of pyrophyllite continues to decline. Some high-iron, high-titanium, high-potassium pyrophyllites were abandoned because they could not meet production needs.

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  • Low-boron fluorine-free glass fiber composition

Examples

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Embodiment Construction

[0017] The present invention will be described in detail below based on the examples. The glass compositions of the examples listed in Table 1 are all based on the claims of the present invention.

[0018] Al in calcined alumina 2 o 3 The content is above 99%, and Fe 2 o 3 If the content is less than 0.02%, calcined alumina is used instead of pyrophyllite to produce low boron and fluorine-free glass. Calcined alumina only accounts for about 13% of the total raw material, and the designed Al in the glass can be achieved. 2 o 3 content. In this way, the storage area is effectively released, the usage of pyrophyllite is reduced, the content of iron and titanium in the glass is effectively reduced, and the appearance and color of the product are improved.

[0019] Table 1

[0020]

[0021] Calculate the required amount of various raw materials according to the chemical composition of the formulas listed in the above table, and mix them evenly to prepare batches after accu...

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Abstract

Disclosed is a low-boron fluorine-free glass fiber composition. The invention relates to production of low-boron fluorine-free TAG glass, and provides a production process for producing the low-boron fluorine-free TAG glass by utilizing calcined alumina instead of pyrophyllite. The composition is characterized in that: calcined alumina instead of pyrophyllite is taken as one of main raw materials to produce the TAG glass, so that impurities in glass are reduced; the total iron content in the glass is lowered; the heat transmission of melted glass is improved; and the path temperature and energy consumption is reduced. At the same time, the quality of the TAG glass produced from calcined alumina is greatly improved; an exhaust gas of SO2 produced by a raw material of pyrophyllite is limited, so that environment pollution is reduced; and the raw material pressure due to shortage of pyrophyllite is relieved.

Description

technical field [0001] The invention relates to the use of a new raw material calcined alumina in a low-boron and fluorine-free glass fiber composition. The low-boron and fluorine-free glass fiber produced by this process not only further meets the needs of customers in terms of appearance, but also eases the environment. The pressure reduces the use pressure of pyrophyllite. Background technique [0002] Compared with ordinary E glass, the viscosity of low boron and fluorine-free glass is much higher. In the melting part, the foam layer on the liquid surface of the furnace is not easy to control, and the passage temperature setting is also high. Not only that, crystallization is more likely to occur in the passage . In the wire drawing operation, the temperature gradient of the glass liquid rises sharply, and the temperature of the bushing also rises sharply. The crystallization phenomenon near the bushing is also more common, which aggravates the aging of the bushing, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00C03C13/02
Inventor 张志法刘颖赵恒刚李永艳寿业菲徐言超
Owner TAISHAN FIBERGLASS INC