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A kind of white high-alumina glass-ceramics and preparation method thereof

A glass-ceramic and high-alumina technology, which is applied in the field of white high-alumina glass-ceramics and its preparation, can solve problems such as peeling off, coating aging, and poor coloring effect, and achieve low cost, simple preparation process, and excellent mechanical properties Effect

Active Publication Date: 2022-04-01
CHANGSHU JIAHE DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the method of preparing colored glass, there is also a layer of organic material color layer sprayed on the glass surface, but the coating will age or even fall off with time, and the coloring effect will naturally deteriorate.

Method used

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  • A kind of white high-alumina glass-ceramics and preparation method thereof
  • A kind of white high-alumina glass-ceramics and preparation method thereof
  • A kind of white high-alumina glass-ceramics and preparation method thereof

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Embodiment Construction

[0013] A white high-alumina glass-ceramic, the chemical composition of the glass is 52-65mol% SiO 2 , 13-20mol% of AL 2 o 3 , 0.5~5mol% CaO, 0~2mol% ZrO 2 , 2~9mol% Na 2 O, 1~5mol% K 2 O, 2-10mol% Li 2 O, 0~1mol% Sb 2 o 3 , 1-7 mol% of MgO, 0.4-2 mol% of CdS, and 3-8 mol% of ZnO.

[0014] During the preparation, proceed as follows:

[0015] (1) Prepare glass batch materials according to the above-mentioned components;

[0016] (2) The glass batch material is melted into molten glass in a high-temperature furnace with an oxidizing atmosphere, and the melting temperature is 1550°C;

[0017] (3) Pour the molten glass into an iron mold for rapid shaping, and the glass is colorless;

[0018] (4) Put the formed colorless glass into an electric furnace for heat treatment, keep it at a temperature of 750°C-780°C for 5 hours, and then keep it at a temperature of 630-660°C for 8 hours and cool it in the furnace to obtain a white high-alumina glass. crystal glass.

[0019] Sp...

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Abstract

A white high alumina glass-ceramic. The glass contains the following components according to the chemical composition: 52-65mol% SiO 2 , 13-20mol% of AL 2 o 3 , 0.5~5mol% CaO, 0~2mol% ZrO 2 , 2~9mol% Na 2 O, 1~5mol% K 2 O, 2-10mol% Li 2 O, 0~1mol% Sb 2 o 3 , 1-7 mol% of MgO, 0.4-2 mol% of CdS, and 3-8 mol% of ZnO. During preparation, prepare glass batch materials according to the above formula, place them in a high-temperature furnace for melting, and rapidly cool the prepared glass liquid to form a colorless glass, and then carry out a staged heat treatment of crystallization and color development in the high-temperature section and annealing in the low-temperature section. A white high-alumina glass-ceramic is obtained. The present invention is used to prepare white high-alumina glass-ceramics. The strength and hardness of the glass are improved due to the precipitation of nano-scale crystals. On the basis of ensuring the improvement of the mechanical properties of the glass, white high-alloy glass-ceramics with whole body milky white conforming to people's aesthetics are prepared. Aluminum glass-ceramic.

Description

technical field [0001] The invention relates to the technical field of glass manufacturing, in particular to a white high-alumina glass-ceramic and a preparation method thereof. Background technique [0002] Colored glass refers to glass that can absorb, reflect, and pass through different wavelengths of light to present different colors. It is widely used in architectural decoration materials, high-end glass products, wine sets, tableware, and artworks. Traditional colored glass is based on the soda-lime-silica glass system, which has a low melting temperature and poor strength and impact resistance. Because of its denser structure, high-alumina glass has better mechanical properties than traditional soda-lime-silica glass. As a unique functional glass material, glass-ceramic can grow suitable crystals inside the mother glass through corresponding heat treatment process. The coexistence of glass phase and crystal phase makes it have higher hardness and strength compared wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00C03C1/04C03B32/02C03B25/00C03C4/02
CPCC03C10/0009C03C1/04C03B32/02C03B25/00C03C4/02
Inventor 张福军田启航秦进波张翔张继红
Owner CHANGSHU JIAHE DISPLAY TECH CO LTD