Borosilicate glass and preparation method

A borosilicate glass and glass technology, which is applied in glass manufacturing equipment, glass pressing, glass forming, etc., can solve the problems of affecting the absorption of heat energy of the glass liquid, weakening the melting capacity of the reactor, and not conforming to green production, etc. To achieve the effect of easy processing and forming, outstanding thermal resistance, excellent mechanical properties and corrosion resistance

Active Publication Date: 2017-02-15
清远忠信世纪电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process not only consumes a lot of energy but also releases a large amount of greenhouse gas carbon dioxide, which obviously does not meet the needs of green production
Moreover, this decomposition reaction weakens the melting capacity of the reaction furnace, increases the reaction time, increases the exhaust gas emission, and directly takes away part of the heat, and the carbon dioxide produced will also increase the thickness of the foam layer in the kiln, thereby affecting the thermal energy of the glass liquid. Absorption

Method used

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  • Borosilicate glass and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of borosilicate glass, by weight percentage, its main component comprises: SiO 2 : 54.3%, Al 2 o 3 : 17%, B 2 o 3 : 8%, CaO: 20%, Fe 2 o 3 : 0.2%, TiO 2 : 0.1%, MgO: 0.1% and Na 2 O: 0.3%.

[0042] In terms of weight percentage, the borosilicate glass is mainly made of the following raw materials in weight percentage:

[0043] The borosilicate glass is mainly made of the following raw materials in weight percentage: 52% of pyrophyllite, 12% of kaolin, 10% of quicklime, 14.5% of calcite, 1% of fluorite, 10% of boronite, and 0.2% of mirabilite. %, Soda Ash 0.1%, Carbon Powder 0.2%.

[0044] The method for preparing the above-mentioned borosilicate glass specifically comprises the following steps:

[0045] 1) Take each raw material according to the above weight ratio, dry and pulverize after mixing uniformly, and then pass through a 400-mesh sieve to obtain the micropowder raw material;

[0046] 2) input the micropowder raw material obtained in step 1) in...

Embodiment 2

[0050] A kind of borosilicate glass, by weight percentage, its main component comprises: SiO 2 : 53.85%, Al 2 o 3 : 19.0%, B 2 o 3 : 7.0%, CaO: 18.02%, Fe 2 o 3 : 0.23%, TiO 2 : 0.3%, MgO: 1.0%, Na 2 O: 0.5%; K 2 O: 0.1%.

[0051] The borosilicate glass is mainly made of the following raw materials in weight percentage: 53.8% of pyrophyllite, 11.2% of kaolin, 15.4% of quicklime, 2.9% of fluorite, 15.4% of boronite, 0.6% of mirabilite, and 0.4% of soda ash , Toner 0.3%.

[0052] The preparation method of above-mentioned borosilicate glass specifically comprises the following steps:

[0053] 1) Take each raw material according to the above weight ratio, dry and pulverize after mixing uniformly, and then pass through a 325 mesh sieve to obtain the micropowder raw material;

[0054] 2) input the micropowder raw material obtained in step 1) into a closed tank kiln and melt and react at 1400° C. to form a flowable molten glass;

[0055] 3) Clarifying, defoaming, homogeni...

Embodiment 3

[0058] A kind of borosilicate glass, by weight percentage, its main composition comprises:

[0059] SiO 2 : 59.8%, Al 2 o 3 : 21.3%, B 2 o 3 : 3.3%, CaO: 12.4%, Fe 2 o 3 : 0.2%, TiO 2 : 0.2%, MgO: 0.6%, Na 2 O: 0.2%, K 2 O: 0.2%, BaO 0.8% and ZrO 2 0.8%, Bi 2 o 3 0.2%.

[0060] The borosilicate glass is mainly made of the following raw materials in weight percentage: 56.2% of pyrophyllite, 13% of kaolin, 9.4% of quicklime, 4.5% of fluorite, 10.1% of boronite, 0.8% of mirabilite, and 1.3% of soda ash , Carbon powder 1.6%, barium carbonate 1.7%, zircon 0.5%, bismuth 0.9%.

[0061] The preparation method of above-mentioned borosilicate glass specifically comprises the following steps:

[0062] 1) Take each raw material according to the above-mentioned weight ratio, dry and pulverize after mixing uniformly, and then pass through a 200-mesh sieve to obtain the micropowder raw material;

[0063] 2) Input the micropowder raw material obtained in step 1) into a closed ...

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Abstract

The application belongs to the technical field of glass preparation, and particularly relates to a borosilicate glass and a preparation method of the borosilicate glass. The borosilicate glass is prepared from, by weight percent, 50-60% of SiO2, 15-27% of Al2O3, 3-8% of B2O3, 13-28% of CaO, 0.2-0.45% of Fe2O3, 0.1-0.5% of TiO2, 0.1-1.2% of MgO, and 0.1-1.2% of alkali metal R2O. The borosilicate glass provided by the application is excellent in physical performance, corrosive resistance and outstanding heat resistance; moreover, the environmental pollution during the preparation process is small, and energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of glass preparation, and in particular relates to a borosilicate glass and a preparation method thereof. Background technique [0002] Because glass has a series of valuable qualities: transparency, high strength, good chemical stability, and certain heat resistance, it can be made into products of various shapes and sizes by various molding methods and processing methods. By adjusting the chemical composition and preparation process of glass, various forms of products can be made, such as yarn, woolen yarn, cloth, belt, cylindrical cloth, thin felt, felt, plate, shell and so on. Due to the different glass components used, the performance of one aspect can be made more prominent, so glass products are widely used in industry, agriculture, construction and civil use. For example, it can be used as electrical insulation material, filter material, heat insulation, sound-absorbing material, shock-absorbing mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/091C03C6/06C03C6/02C03C1/00C03B11/00C03B37/022
CPCC03B11/00C03B37/022C03C1/00C03C3/091
Inventor 林文桂
Owner 清远忠信世纪电子材料有限公司
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