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Zirconium aluminosilicate glass and preparation method thereof

A zirconium aluminosilicate and glass technology, applied in glass manufacturing equipment, glass tempering, manufacturing tools, etc., can solve the problems of reducing the life of furnace refractory materials, application restrictions, high energy consumption, and achieve the best clarification effect, The effect of fewer bubble defects and lower melting temperature

Active Publication Date: 2017-03-22
QINGYUAN CSG NEW ENERGY SAVING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

These substances are restricted by the Directive on the Restriction of the Use of Certain Hazardous Components in Electrical and Electronic Equipment (ROHS) and the Registration, Evaluation, Authorization and Restriction of Chemicals (Reach), which makes them widely used in the electronics industry. application is limited
Moreover, the current zirconium aluminosilicate glass is often prepared by increasing the clarification temperature to further reduce bubble defects, which not only consumes high energy, but also reduces the life of the kiln refractory

Method used

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  • Zirconium aluminosilicate glass and preparation method thereof
  • Zirconium aluminosilicate glass and preparation method thereof
  • Zirconium aluminosilicate glass and preparation method thereof

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preparation example Construction

[0048] The above-mentioned zirconium aluminosilicate glass is prepared by a float process. see figure 1 , the preparation method of the above-mentioned zirconium aluminosilicate glass comprises the following steps:

[0049] Step S110: Quartz sand, Na 2 CO3 , CaCO 3 、KNO 3 、K 2 CO 3 、NaNO 3 , MgO, Al 2 o 3 , CeO 2 , SnO 2 , zircon sand, TiO 2 Mix with glass clarifier to obtain a mixture, keep the mixture at 1400℃~1520℃ for 1 hour to melt the mixture, wherein the glass clarifier includes NH 4 NO 3 、Na 2 SO 4 , CeO 2 and SnO 2 .

[0050] The ratio of the above raw materials makes the final zirconium aluminosilicate glass include the following components in terms of mass percentage: SiO 2 55.0~68.0%; Al 2 o 3 5.0~20.0%; CaO 0~5.0%; MgO 0~10.0%; K 2 O1.0~8.0%; Na 2 O 10.0~17.0%; CeO 2 0.01~2.0%;TiO 2 0.001~2.0%; ZrO 2 0.3~3.0%; SnO 2 0.01~1.5% and Fe 2 o 3 0.010-0.012%. Among them, K 2 O and Na 2 The total mass percentage of O is 12.0-20.0%, and K 2 ...

Embodiment 1

[0069] 1. Quartz sand, Na 2 CO 3 、KNO 3 、K 2 CO 3 、NaNO 3 , MgO, Al 2 o 3 , CeO 2 , SnO 2 , zircon sand, TiO 2 Mix with a glass clarifier to obtain a mixture, place the mixture in an electric furnace, and keep it warm at 1500°C for 1 hour to melt the mixture, wherein the glass clarifier includes NH 4 NO 3 、Na 2 SO 4 , CeO 2 and SnO 2 ;

[0070] 2. Heat up the melted mixture to 1605°C for clarification for 2 hours to obtain molten glass;

[0071] 3. The molten glass is formed by the float method to obtain zirconium aluminosilicate glass. The components of the zirconium aluminosilicate glass are shown in Table 1;

[0072] 4. Heat the zirconium aluminosilicate glass at 300°C for 30 minutes, then place it in a potassium nitrate melt at 420°C for 6 hours, and finally cool it down to 100°C at a rate of 5°C / min, and Heat preservation at 100° C. for 30 minutes to obtain tempered zirconium aluminosilicate glass.

Embodiment 2

[0074] 1. Quartz sand, Na 2 CO 3 、KNO 3 、K 2 CO 3 、NaNO 3 , MgO, Al 2 o 3 , CeO 2 , SnO 2 , zircon sand, TiO 2 Mix with a glass clarifier to obtain a mixture, place the mixture in an electric furnace, and keep it warm at 1510°C for 1 hour to melt the mixture, wherein the glass clarifier includes NH 4 NO 3 、Na 2 SO 4 , CeO 2 and SnO 2 ;

[0075] 2. Heat the melted mixture to 1615°C for clarification for 2 hours to obtain molten glass;

[0076] 3. The molten glass is formed by the float method to obtain zirconium aluminosilicate glass. The components of the zirconium aluminosilicate glass are shown in Table 1;

[0077] 4. Heat the zirconium aluminosilicate glass at 300°C for 30 minutes, then place it in a potassium nitrate melt at 420°C for 6 hours, and finally cool it down to 100°C at a rate of 5°C / min, and Heat preservation at 100° C. for 30 minutes to obtain tempered zirconium aluminosilicate glass.

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Abstract

The invention relates to zircon aluminum silicate glass and a preparation method thereof. The zircon aluminum silicate glass comprises, by mass percentage, 55.0-68.0% of SiO2, 5.0-20.0% of Al2O3, 0-5.0% of CaO, 0-10.0% of MgO, 1.0-8.0% of K2O, 10.0-17.0% of Na2O, 0.01-2.0% of CeO, 0.001-2.0% of TiO2, 0.3-3% of ZrO, 0.01-1.5% of SnO2 and 0.010-0.012% of Fe2O3, wherein the total mass percentage of the K2O and the Na2O is 12.0-20.0%, and the weight ratio of the K2O to the Na2O meets 0.03< K2O / Na2O<0.75; the total mass percentage of the CaO and the MgO is less than or equal to 12.0%. The zircon aluminum silicate glass has the advantages that no toxic and harmful substance exists, the fusion and the clarification temperatures are low, and bubble defects are less.

Description

technical field [0001] The invention relates to the technical field of glass, in particular to a zirconium aluminosilicate glass and a preparation method thereof. Background technique [0002] Zirconium aluminosilicate glass is widely used as protective glass in touch screens, cash machines, self-service printing terminal equipment and 3D TVs. It can also be used in safety glass for windshields of vehicles such as aviation equipment and high-speed rail locomotives. It has high mechanical strength. , wear resistance, impact resistance, good chemical stability and other characteristics, can effectively prevent the impact and scratch damage of the product surface, prolong the service life of the product and enhance the use effect. [0003] The preparation of current zirconium aluminosilicate glasses mostly involves the use of As 2 o 3 , Sb 2 o 3 , Cl 2 or F 2 As a clarifying agent for glass to remove air bubbles in the glass as much as possible. But this clarifying agent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/095C03C1/00C03B18/00C03B27/03
Inventor 王明忠陶武刚陈自发陈志鸿王杏娟
Owner QINGYUAN CSG NEW ENERGY SAVING MATERIALS CO LTD
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