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Aluminosilicate glass, its preparation method and application

A technology of aluminosilicate glass and liquid glass, applied in optics, instruments, nonlinear optics, etc., can solve the problems of glass covers failing to achieve the original goal of protecting display equipment, broken glass covers, and reduced strength.

Active Publication Date: 2018-08-21
深圳南玻科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the thickness of the cover glass is made thin, its strength is reduced, and if the display device is dropped during use or carrying, the cover glass itself may sometimes be broken
Therefore, there is a problem that the cover glass cannot achieve the original goal of protecting the display device

Method used

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  • Aluminosilicate glass, its preparation method and application
  • Aluminosilicate glass, its preparation method and application
  • Aluminosilicate glass, its preparation method and application

Examples

Experimental program
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preparation example Construction

[0048] The above-mentioned preparation method of aluminosilicate glass greatly reduces or controls the introduction of coloring elements Fe and S by adjusting the composition of raw materials, added clarifiers and heating methods, so that the glass is colored amber or sulfur or brown-yellow or colored Factor (FeS x ) content is reduced, so that the visible light transmittance of the glass is high, the glass color index is basically close to neutral color, and the visible light transmittance is high.

[0049] A strengthened glass according to one embodiment is obtained by strengthening the above-mentioned aluminosilicate glass.

[0050] Preferably, it is strengthened by means of chemical strengthening. Since the total mass percentage of alkali metal oxides in the aluminosilicate glass is greater than or equal to 9% and less than or equal to 23%, the content of alkali metal oxides is relatively high, which is convenient for chemical strengthening treatment.

[0051] A glass pl...

Embodiment 1～20

[0056] For the aluminosilicate glasses of Examples 1-10, weigh the corresponding raw materials according to the proportions in Table 1, and for the aluminosilicate glasses of Examples 11-20, weigh the corresponding raw materials according to the proportions in Table 2, and mix thoroughly Finally, put it into a platinum crucible, and carry out melting and clarification for 6 hours under a high-temperature electric furnace at 1620°C. The molten glass is poured into a graphite mold to shape, and kept at 650°C for half an hour, and then cooled to room temperature with the furnace to obtain a glass block. After mechanical cutting, rough grinding, fine grinding, and polishing, it becomes a sheet glass with a thickness of 1.1mm. The composition of the final glass (including Fe 2 o 3 with SO 3 ) is tested by XRF, and the results are shown in Table 3 and Table 4 in terms of the mass percentage of the oxide standard;

[0057] Table 1

[0058]

[0059]

[0060] Table 2

[006...

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Abstract

The invention discloses aluminosilicate glass and a preparation method thereof. The aluminosilicate glass is prepared from the following components in percentage by mass: 56.0%-68.0% of silicon dioxide, 10.0%-22.0% of aluminum oxide, 9.0%-15.0% of sodium oxide, 2.0%-8.0% of magnesium oxide, 0-9.0% of potassium oxide and 0-1.5% of zirconium dioxide, wherein the total mass percentage of silicon dioxide and aluminum oxide is larger than or equal to 70% and smaller than or equal to 85%, and the total mass percentage of sodium oxide and potassium oxide is larger than or equal to 9% and smaller thanor equal to 23%; the aluminosilicate glass contains no more than 0.08% of sulfur trioxide and no more than 0.018% of ferric oxide. According to the aluminosilicate glass, the content of sulfur and iron is reduced, and accordingly, neutral-color glass is obtained.

Description

technical field [0001] The invention relates to an aluminosilicate glass, a preparation method thereof, strengthened glass obtained by strengthening the aluminosilicate glass, a glass plate and application thereof. Background technique [0002] In recent years, protective glass has been increasingly used on touch-enabled devices such as mobile phones and tablets, wearables, etc. to protect the display and enhance aesthetics. Such portable display devices require weight reduction and thinning. Therefore, the cover glass used to protect the display is also required to be thin. However, if the thickness of the cover glass is made thin, its strength is reduced, and if the display device is dropped during use or carrying, the cover glass itself may sometimes be broken. Therefore, there is a problem that the cover glass cannot achieve the original goal of protecting the display device. [0003] In order to solve the above problems, it is conceivable to increase the strength of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/085C03C21/00G02F1/1333
CPCC03C3/085C03C21/00G02F1/1333G02F1/133331
Inventor 赵得翔
Owner 深圳南玻科技有限公司
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