Glass ceramic, tempered glass and preparation method and application thereof

A technology of glass-ceramics and strengthened glass, which is applied in the field of glass products and can solve problems such as poor transmittance of visible light

Pending Publication Date: 2022-06-28
QINGYUAN CSG NEW ENERGY SAVING MATERIALS CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the crystals in the glass-ceramic will scatter the light, the average visible light transmittance of glass-ceramic is generally poor, and it is difficult to balance high transmittance and good mechanical properties (especially high surface pressure) Stress, stress depth, drop performance, ring compressive strength and four-point bending strength)

Method used

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  • Glass ceramic, tempered glass and preparation method and application thereof
  • Glass ceramic, tempered glass and preparation method and application thereof
  • Glass ceramic, tempered glass and preparation method and application thereof

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preparation example Construction

[0085] see figure 1 , another embodiment of the present invention also provides the above-mentioned preparation method of glass-ceramic, including the following steps S110-S130.

[0086] Step S110: melting the raw materials into clear glass liquid.

[0087] In some of the embodiments, in step S110, the melting temperature is 1400°C-1600°C. The melting time is 6h to 8h.

[0088] Step S120 : forming the clear glass liquid to prepare a precursor glass.

[0089] In some of the embodiments, in step S120, the forming process is selected from one of a float forming process, an overflow down-draw method, a pull-up method, a flat-draw method, and a calendering method.

[0090] Step S130: The precursor glass is sequentially subjected to nucleation and crystallization treatment to prepare glass-ceramics.

[0091] In some embodiments, in step S130, the temperature of the nucleation treatment is 500°C to 640°C; the time of the nucleation treatment is 6h to 24h.

[0092] In some embodi...

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Abstract

The invention relates to microcrystalline glass, tempered glass and a preparation method and application thereof. The microcrystalline glass comprises the following components in percentage by mass: 0.5%-80% of SiO2, 3%-18.5% of Al2O3, 5%-15% of Li2O, 1%-7% of P2O5, 2%-8% of ZrO2, 2%-9% of Na2O, 0%-2% of K2O and 20% of TiO2, the ratio of the mass of the Na2O to the sum of the mass of the P2O5, the ZrO2 and the TiO2 is 0.44 to 1.55; the crystal phase comprises lithium disilicate and petalite. Through reasonable component proportion, the glass ceramic has high visible light transmittance and good mechanical properties. After chemical strengthening, the microcrystalline glass has a relatively high surface stress value and a relatively large deep stress depth Dol-Na, has relatively high hardness and relatively strong impact resistance, and can be applied to the fields of protective glass, photoelectric glass, fireproof glass or building glass and the like.

Description

technical field [0001] The invention relates to the technical field of glass products, in particular to a glass-ceramic, a strengthened glass and a preparation method and application thereof. Background technique [0002] Glass-ceramic, also known as glass ceramics, is a material obtained by controllable precipitation of crystallites for the base glass of some specific glass systems, and its crystallite phase is uniformly distributed in the glass phase. By means of heat treatment of traditional glass, a large number of tiny crystals are uniformly precipitated in the glass to form a multi-phase complex in which dense crystals and glass phases are formed, thereby obtaining glass-ceramics. With the help of the mechanical properties of the crystal material itself, the average hardness, flexural strength, fracture toughness and other mechanical properties of the glass can be improved. However, because the crystals in the glass-ceramic will scatter the light, the average visible ...

Claims

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Application Information

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IPC IPC(8): C03C10/12C03B32/02C03C21/00
CPCC03C10/0027C03B32/02C03C21/002
Inventor 刘红刚平文亮肖子凡王明忠康庆伟赵北玉毛佳颖
Owner QINGYUAN CSG NEW ENERGY SAVING MATERIALS CO LTD
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