Preparation method for tempered vacuum glass

A vacuum glass and tempering technology, applied in glass manufacturing equipment, glass tempering, manufacturing tools, etc., can solve the problems of affecting the quality of vacuum glass edge sealing, losing the safety characteristics of tempered glass, tempered glass annealing, etc., to avoid the glass surface Effects of stress reduction, reduction of heating times and thermal damage, improvement of strength and life

Inactive Publication Date: 2018-08-17
贵州新中盛玻璃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, according to the requirements of the sealing process, it is necessary to keep the temperature at the highest temperature for a certain period of time, so that the sealing material can fully melt and flow, and obtain higher sealing strength and airtightness, then in the process of melting the low melting point glass powde

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The tempered vacuum glass is prepared by using ordinary flat glass, and its preparation method mainly includes the following steps:

[0016] (1) After the glass is pre-treated and dried, a support is placed on the glass; the support is point-shaped transparent glass, and glass powder with water glass as a binder is printed on one side of the glass by a screen printing process , a transparent support formed after drying, the density of the support is 500-550 pieces / cm 2 , the diameter of the support is 0.2-0.3mm, and the height is between 0.2-0.25mm.

[0017] (2) Spray or impregnate a layer of chemical liquid on the glass surface; wherein the chemical liquid coating on the glass surface is single-sided or double-sided, spray or dip one or more times, wherein the chemical liquid is alcohol The concentration of the glass tempering chemical solution prepared by the potassium compound is 25ml / L, and the coating thickness is 0.05-0.08mm, until the coating amount of the chemi...

Embodiment 2

[0020] Toughened flat glass is used to prepare toughened vacuum glass, and the preparation method mainly includes the following steps:

[0021] (1) After the glass is pre-treated and dried, a support is placed on the glass; wherein the support is point-shaped transparent glass, and glass with water glass as a binder is printed on one side of the glass by a screen printing process Powder, a transparent support formed after drying, the density of the support is 530-560 pieces / cm 2 , the diameter of the support is 0.25-0.4mm, and the height is between 0.23-0.27mm.

[0022] (2) Spray or impregnate a layer of chemical liquid on the glass surface; wherein the chemical liquid coating on the glass surface is single-sided or double-sided, spray or dip one or more times, wherein the chemical liquid is alcohol The concentration of the glass tempering chemical solution prepared by the potassium compound is 30ml / L, and the coating thickness is 0.08-0.15mm, until the coating amount of the ...

Embodiment 3

[0025] Using semi-tempered curved glass to prepare tempered vacuum glass, the preparation method mainly includes the following steps:

[0026] (1) After the glass is pre-treated and dried, a support is placed on the glass; wherein the support is point-shaped transparent glass, and glass with water glass as a binder is printed on one side of the glass by a screen printing process Powder, a transparent support formed after drying, the density of the support is 580-600 pieces / cm 2 , the diameter of the support is 0.4-0.5mm, and the height is between 0.26-0.3mm.

[0027] (2) Spray or impregnate a layer of chemical liquid on the glass surface; wherein the chemical liquid coating on the glass surface is single-sided or double-sided, spray or dip one or more times, wherein the chemical liquid is alcohol The glass tempering chemical solution prepared by the potassium compound is 40ml / L, and the coating thickness is 0.15-0.2mm until the coating amount of the chemical solution does not...

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PUM

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Abstract

The invention discloses a preparation method for tempered vacuum glass. The preparation method mainly comprises the following steps: (1) placing a support on glass having undergone pretreatment and drying; (2) spraying or impregnating the surface of the glass with a layer of a chemical solution; and (3) laminating two pieces of the glass sprayed or impregnated with the chemical solution on a platform, carrying out edge sealing after lamination, then flatwise placing the laminated glass in a heating furnace for dry heating at a temperature of 850 and 920 DEG C for 6 to 10 hours, carrying out exhausting, vacuum pumping, edge sealing and sealing during heating, then carrying out cooling, and taking out the laminated glass out of the furnace. With the preparation method of the invention, highcrushing stress is formed on the surface layers of the laminated glass, small tensile stress is formed in the laminated glass, a compact layer with strong crushing stress is generated on the surface of the laminated glass, and surface stress is enhanced. Therefore, glass manufacturing cost is greatly reduced; the heating frequency and thermal damage of the glass are reduced; the strength and the service life of the glass are improved; and the preparation method has the advantages of simple process, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of vacuum glass preparation, in particular to a preparation method of tempered vacuum glass. Background technique [0002] In the past ten years, the demand for thermal insulation, energy saving and sound insulation of buildings has promoted the development of vacuum glass production technology. Most existing vacuum glass manufacturing methods are to support and isolate two layers of flat tempered glass, seal the circumference to form a cavity, and obtain a vacuum cavity through steps such as sintering, vacuuming, and sealing. Due to the elimination of gas conduction and convection, vacuum glass has excellent heat insulation and sound insulation properties. It has become a subject of people's research while being widely used. At present, dozens of new utility and invention patents for vacuum glass have been disclosed in China. . For a long time, vacuum glass has been made of ordinary flat tempered glass, w...

Claims

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Application Information

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IPC IPC(8): C03B27/02C03B27/012C03C17/28C03C27/10
CPCC03B27/012C03B27/022C03C17/28C03C27/10
Inventor 蔡峰
Owner 贵州新中盛玻璃科技有限公司
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