Aluminum silicate glass and preparation method thereof

A technology of aluminosilicate glass and ultra-thin glass, which is applied in the field of aluminosilicate glass and its preparation, can solve the problem of low safety of ordinary soda-lime-silica glass, and achieves the goal of providing safety, simple process, and improved durability. Effect

Inactive Publication Date: 2012-02-01
吴艺菲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The depth of cracks on the glass surface can reach more than 15 μm, and the 8-12 μm surface compressive stress layer formed on the surface of ordinary soda-lime-silica glass after ion exchange cannot cover these cracks, so the safety of ordinary soda-lime-silica glass is not high

Method used

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  • Aluminum silicate glass and preparation method thereof
  • Aluminum silicate glass and preparation method thereof
  • Aluminum silicate glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 60% SiO by weight 2 , 13% Al 2 o 3 , 14% Na 2 O, 5% K 2 O, 4% ZrO 2 , 2% CaO, 2% MgO; after mixing all the above ingredients, put them into a platinum crucible to melt at a temperature of 1600-1800°C, cool slowly and pour into molding, and anneal at 550-650°C to obtain aluminosilicate salt glass.

Embodiment 2

[0030] Weigh SiO with a weight ratio of 62% 2 , 15% Al 2 o 3 , 10% Na 2 O, 4% Li 2 O, 2% K 2 O, 3% ZrO 2 , 1% B 2 o 3 , 1% CaO, 0.5% Sb 2 o 3, 1.5% ZnO; after mixing all the above ingredients, put them into a platinum crucible to melt at a temperature of 1600-1800 ° C, slowly cool and then pour into a mold, and anneal at a temperature of 550-650 ° C to obtain aluminosilicate glass .

Embodiment 3

[0032] Weigh 65% SiO by weight 2 , 13.5% Al 2 o 3 , 12.5% ​​Na 2 O, 2% K 2 O, 0.5% B 2 o 3 , 1% CaO, 4% MgO, 0.5% Sb 2 o 3 , 1% TiO 2 ; After mixing all the above ingredients, put the mixture into a platinum crucible to melt at a temperature of 1600-1800°C, slowly cool it, pour it into shape, and anneal it at a temperature of 550-650°C to obtain aluminosilicate glass.

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Abstract

The invention relates to aluminum silicate glass. The toughness of the ultrathin glass is increased by adopting an ion exchange chemical reinforcing method in a subsequent process. The aluminum silicate glass comprises the following components in percentage by weight: 55 to 70 percent of SiO2, 10 to 20 percent of Al2O3, 8 to 25 percent of at least one alkali metal oxide and the balance of additive, wherein ions of chemical reinforcing ion exchange are from alkali metal ions in the alkali metal oxide. After ion exchange chemical reinforcing, the surface pressure value of the aluminum silicate glass can reach over 700MPa, and the depth of the pressure stress layer can reach over 50 microns, so cracks on the surface of the glass can be totally covered, and the safety of the glass in application is greatly promoted. The invention also relates to a method for preparing the aluminum silicate glass.

Description

technical field [0001] The invention relates to a glass and a preparation method thereof, in particular to an aluminosilicate glass suitable for increasing the toughness of ultra-thin glass by adopting an ion exchange chemical strengthening method in a subsequent process and a preparation method thereof. Background technique [0002] Glass materials are more and more used in electronics, automobiles, construction and other fields. Its superior surface hardness and structural strength are typical characteristics of glass materials, but the biggest disadvantage of glass is that it is not tough enough and brittle, which causes the glass As well as hot and cold shocks, it is easy to break. [0003] Ordinary soda-lime-silica glass is based on Na-Ca-Si (soda-lime-silicon) as the backbone structure. After 8 hours of K-Na exchange at 420°C, the surface of ordinary Na-Ca-Si (soda-lime-silicon) glass will be pressed The stress value can reach 550Mpa, and the depth of the compressive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/083C03C3/093C03C3/091
Inventor 吴艺菲
Owner 吴艺菲
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