Single-slice fireproof glass

A fire-resistant glass, single-piece technology, applied in the field of glass manufacturing

Active Publication Date: 2006-10-04
CHINA LUOYANG FLOAT GLASS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Borosilicate glass or tempered ordinary sodium-lime-silicate glass cannot be used as a single piece of fireproof glass because the expansion and softening temperature is lower than 700°C, and can only be used as a substrate for composite fireproof glass

Method used

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  • Single-slice fireproof glass

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] SiO 2 : 70%, Al 2 o 3 : 12.5%, MgO: 2%, CaO: 6%, Na 2 O: 6%, SrO: 1%, BaO: 0.5%, K 2 O: 0.7%, Li 2 O: 0.7%, and the balance is impurities brought by mineral raw materials or colorants added.

[0049]According to the composition of the glass, sandstone, dolomite, limestone, soda ash, barium salt, strontium salt, alumina, wax stone, lithium salt, potassium salt and appropriate proportion of glass clarifying agent are used to make glass batch materials. Melted at 1580°C and formed by float process, the expansion coefficient α can be obtained 25～400℃ 60~65×10 -7 / °C, the expansion and softening temperature exceeds 700°C, the softening temperature exceeds 800°C, and the physical tempering temperature is 740°C.

example 2

[0051] SiO 2 : 67%, Al 2 o 3 : 13.5%, MgO: 2%, CaO: 6%, Na 2 O: 8%, SrO: 1.2%, BaO: 1.2%, K 2 O: 0.1%, Li 2 O: 0.4%, and the balance is impurities brought by mineral raw materials or colorants added.

[0052] According to the composition of the glass, sandstone, dolomite, limestone, soda ash, barium salt, strontium salt, alumina, wax stone, lithium salt, potassium salt and appropriate proportion of glass clarifying agent are used to make glass batch materials. Melting at a temperature of 1550°C, and forming through a float process, the expansion coefficient α can be obtained 25～400℃ 63~68×10 -7 / °C, the expansion and softening temperature exceeds 700°C, the softening temperature exceeds 800°C, and the physical tempering temperature is 730°C.

example 3

[0054] SiO 2 : 63%, Al 2 o 3 : 19%, MgO: 1%, CaO: 6%, Na 2 O: 6%, SrO: 3%, Ba: 0.5%, K 2 O: 1%, the balance is impurities brought in by mineral raw materials or colorants added.

[0055] According to the composition of the glass, sandstone, dolomite, limestone, soda ash, barium salt, strontium salt, aluminum oxide, wax stone, potassium salt and appropriate proportion of glass clarifying agent are used to make glass batch materials. Melted at 1560°C and formed by float process, the expansion coefficient α can be obtained 25～400℃ 60~65×10 -7 / °C, the expansion and softening temperature exceeds 700°C, the softening temperature exceeds 800°C, and the physical tempering temperature is 730°C.

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Abstract

The invention relates to a single-sheet flame-resistant glass with low low-expansion coefficient and high expansion softening temperature, which comprises (by weight percent) the following constituents: SiO2 63-70%, Al2O3 12.5-19%, MgO 1-4%, CaO 6-10%, SrO 0.5-3%, BaO 0.5-2%, K2O 0-1%, Li2O -1% and Na2O 6-10%.

Description

technical field [0001] The invention belongs to the field of glass production and manufacture, and mainly relates to a single piece of fireproof glass with low expansion coefficient, high expansion softening temperature and high softening temperature which can be used for fire prevention. The glass is produced by glass float forming technology, and can be cut or secondary processed into a fire-resistant glass or composite fire-resistant glass substrate that prevents the spread of open flames. This type of glass can be used alone or in combination with other materials. Background technique [0002] The original composite fireproof glass is made of borosilicate glass or tempered ordinary sodium-calcium-silicate glass as the substrate, which is compounded with organic or inorganic materials. Since the expansion and softening temperature of borosilicate glass and ordinary sodium-lime-silicate glass is generally lower than 700°C, the glass on the contact surface with the fire is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/087C03C4/00
Inventor 张驰姜宏赵晓敏李军葛陈钊
Owner CHINA LUOYANG FLOAT GLASS GROUP
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