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Preparation method of low-expansion low-temperature environment-friendly glass glaze

An environment-friendly, glass glaze technology, which is applied in the field of low-expansion, low-temperature environment-friendly glass glaze preparation, can solve the problem that it is difficult to meet the requirements of high-silicon glass double-low, exceed the heat-resistant temperature of high-borosilicate glass, and fail to meet the requirements of environmental friendliness, etc. problems, achieve good market value, improve environmental protection performance, and improve the effect of stable performance

Inactive Publication Date: 2020-04-03
HUNAN JIAYEDA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing low-temperature glaze formulations use potassium, albite, bismuth, lead, etc., but their thermal expansion coefficients are often large (≥8×10-6) or do not meet the requirements of environmental friendliness; low expansion coefficient formulations mostly use High silicon, high aluminum, etc., but its melting point is high (≥650°C), which exceeds the heat resistance temperature of high borosilicate glass, and it is difficult to meet the "double low" requirements of high silicon glass

Method used

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  • Preparation method of low-expansion low-temperature environment-friendly glass glaze

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing low-expansion low-temperature environment-friendly glass glaze, the preparation method comprising the steps of:

[0024] (1) Ingredients, Bi2O3 45wt% to 50wt%, SiO2 7wt% to 15wt%, Al2O3 1wt% to 3wt%, ZnO 2wt% to 10wt%, B2O3 12wt% to 20wt%, Li2O 4wt% to 10wt%, MgO 1wt% % to 5wt%, CaO 1wt% to 5wt%, BaO1wt% to 5wt% for retrieving, and the particle size of each raw material is controlled at less than 10 μm;

[0025] (2) Mixed milling, put the materials in step (1) into a ball mill, dry ball milling for 6 hours;

[0026] (3) Burn the frit, put the ball-milled material in step (2) into the frit furnace for melting, the melting temperature is 1010°C to 1050°C, keep it warm for 20min, and water quench;

[0027] (4) Making glass powder, milling the frit fired in step (3) through a wet ball mill, controlling the particle size of the powder to be less than 3 μm, and drying;

[0028] (5) Glazing, mixing 60wt% of the glass powder in step (4) with 40wt% of th...

Embodiment 2

[0039] A method for preparing low-expansion low-temperature environment-friendly glass glaze, the preparation method comprising the steps of:

[0040] (1) Ingredients, according to Bi2O3 40wt% to 45wt%, SiO2 5wt% to 10wt%, Al2O3 0wt% to 1wt%, ZnO 5wt% to 2wt%, B2O3 10wt% to 15wt%, Li2O 3wt% to 4wt%, MgO 0wt% % to 1wt%, CaO 0wt% to 1wt%, BaO 0wt% to 1wt% for retrieving, and the particle size of each raw material is controlled at less than 10μm;

[0041] (2) Mixed milling, put the materials in step (1) into a ball mill, dry ball milling for 6 hours;

[0042] (3) Burn the frit, put the ball-milled material in step (2) into the frit furnace for melting, the melting temperature is 1000°C to 1010°C, keep warm for 20min, and water quench;

[0043] (4) Making glass powder, milling the frit fired in step (3) through a wet ball mill, controlling the particle size of the powder to be less than 3 μm, and drying;

[0044] (5) Glazing, mixing 60wt% of the glass powder in step (4) with 40w...

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Abstract

The invention discloses a preparation method of a low-expansion low-temperature environment-friendly glass glaze. The preparation method comprises the following steps: (1) material preparing: (2) mixing grinding: carrying out dry ball milling for 6 H; (3) frit firing: putting the ball-milled material obtained in the step (2) into a frit furnace, melting at a melting temperature of 1000-1050 DEG C,keeping the temperature for 20 minutes, and performing water quenching; (4) glass powder preparing: drying; (5) glaze preparing: mixing 60 wt% of the glass powder obtained in the step (4) and 40 wt%of an organic carrier, and performing ball milling on the mixture of the glass powder and the organic carrier for 2 H; (6) printing; (7) glaze firing; and (8) appearance detecting. According to the invention, with the preparation method, the glass glaze can be stably placed at a certain temperature, the stability of the whole glass glaze is improved, the environment is not polluted in the preparation process of the glass glaze, the environmental protection performance of the glass glaze is improved, the quality of the whole glass glaze is further improved, the unqualified glass glaze is conveniently picked out, the defective product rate of the whole glass glaze production is reduced, and the market value is good.

Description

technical field [0001] The invention relates to a method for preparing a low-expansion, low-temperature and environment-friendly glass glaze, in particular to a method for preparing a low-expansion, low-temperature and environment-friendly glass glaze, and belongs to the technical field of glass glaze processing and application. Background technique [0002] After the surface of high borosilicate glass is metallized, it needs to be protected by a glass glaze layer to prevent metal oxidation. The "double low" characteristics of high borosilicate glass (thermal expansion coefficient 3.3×10-6, heat resistance temperature 600 ℃), put forward strict requirements on glass glaze. [0003] Most of the existing low-temperature glaze formulations use potassium, albite, bismuth, lead, etc., but their thermal expansion coefficients are often large (≥8×10-6) or do not meet the requirements of environmental friendliness; low expansion coefficient formulations mostly use High silicon, hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/16C03C8/04C03C17/36
CPCC03C8/04C03C8/16C03C17/36C03C17/3644
Inventor 余仁安施小罗
Owner HUNAN JIAYEDA ELECTRONICS
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