Composition for glass, aluminosilicate glass and method for preparing aluminosilicate glass

An aluminosilicate glass and aluminosilicate technology, applied in glass manufacturing equipment, glass tempering, glass forming, etc., can solve the problems of mismatched thermal expansion coefficient and high softening point, and achieve suitable expansion coefficient and softening point. Low and good energy transfer effect

Active Publication Date: 2019-11-22
LILING KIBING ELECTRONIC GLASS CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0007] Based on this, the main purpose of the present invention is to provide a composition for glass, aluminosilicate glass and a method for preparing aluminosilicate glass, so as to overcome the problem of thermal expansion coefficient and mold when glass is 3D hot-bent in the background technology. Problems of thermal expansion coefficient mismatch and high softening point

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  • Composition for glass, aluminosilicate glass and method for preparing aluminosilicate glass
  • Composition for glass, aluminosilicate glass and method for preparing aluminosilicate glass
  • Composition for glass, aluminosilicate glass and method for preparing aluminosilicate glass

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preparation example Construction

[0055] 3. Preparation method of aluminosilicate glass

[0056] The method for preparing aluminosilicate glass according to the embodiment of the present invention comprises: sequentially mixing, melting, homogenizing, molding and annealing the aforementioned composition for glass to obtain aluminosilicate glass.

[0057] In the present invention, the raw materials in the aluminosilicate glass composition may be known chemical raw materials or mineral raw materials for glass production.

[0058] Among them, the obtained glass composition can be molded into a glass plate by the float method, the down-draw method, or the overflow method.

[0059] Preferably, after the step of annealing, chemical strengthening is also included. In the present invention, primary chemical strengthening or secondary chemical strengthening can be used.

[0060] Primary chemical strengthening, preferably molten salt is LiNO 3 、NaNO 3 and KNO 3 mixed molten salt, the content of which is 0-5% LiNO ...

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Abstract

The invention discloses a glass composition, aluminosilicate glass and a preparation method of aluminosilicate glass. The glass composition includes the following components by the mass percentage with oxides as the benchmark: 55-70 wt% of SiO2, 9-20 wt% of Al2O3, 0-8 wt% of P2O5, 0.1-6 wt% of Li2O, 5-15 wt% of Na2O, 0.01-6 wt% of K2O, 0.1-7 wt% of MgO, 0.01-5 wt% of CaO, and 0.01-5 wt% of Y2O3, wherein 35 wt%<SiO2-(Al2O3+P2O5)<50 wt%, 8<1.12Li2O+1.05Na2O-0.92K2O<16.5, 1.5<(1.12Li2O+1.05Na2O+0.92K2O) / (0.78MgO+0.85CaO+1.03Y2O3)<6, and 1<0.78MgO+1.03Y2O3-0.85CaO<4. The aluminosilicate glass hasappropriate expansion coefficient and low softening temperature, and is suitable for 3D thermal bending to form 3D glass.

Description

technical field [0001] The invention relates to the field of glass, in particular to a composition for glass, aluminosilicate glass and a preparation method of aluminosilicate glass. Background technique [0002] Glass has always been an indispensable material in display technology and is often used as a protective part for display devices. The composition of the glass surface can be changed through chemical strengthening, which in turn can improve the strength of the glass surface. During use, the touch screen cover glass is prone to contact and friction. The resulting scratches directly cause the surface of the touch screen to be rough and the smoothness is reduced, which affects the use effect and may cause the touch screen to break. [0003] The strength of glass is essentially determined by the system and composition of the glass. Therefore, in order to seek glass with higher strength, higher hardness, low brittleness, scratch resistance and deformation resistance, we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/097C03B17/06C03B18/02C03B27/03
CPCC03B17/06C03B17/064C03B18/02C03B27/03C03C3/097
Inventor 刘柏辉候英兰
Owner LILING KIBING ELECTRONIC GLASS CO LTD
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