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A kind of preparation method of vacuum tempered glass

A technology of vacuum glass and vacuum steel, which is applied in glass manufacturing equipment, glass production, glass molding, etc., can solve the problems that affect the quality of vacuum glass edge sealing, lose the safety characteristics of tempered glass, and tempered glass annealing, etc. Effect of uniformity and quality, lower temperature, larger area

Active Publication Date: 2017-07-21
左树森
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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 powder , the long-term high temperature of tempered glass will cause severe annealing of tempered glass, causing stress decay, or even decay to below 50%, thus losing the safety characteristics of tempered glass
At the same time, the existing tempered glass generally has a certain degree of stress bending, which directly affects the edge sealing quality of vacuum glass.

Method used

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  • A kind of preparation method of vacuum tempered glass

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no. 1 example

[0031] A method for preparing vacuum tempered glass, comprising the following steps,

[0032] 1) Screen printing glue dot steps, such as figure 1 As shown, the screen structure for screen printing of the present invention includes a screen frame 1, a screen 2 fixedly arranged in the screen frame and coated with screen glue, and a plurality of layout channels are punched on the screen. Hole 3, the said layout through hole is circular, square, oval or triangular or any design shape or pattern, the diameter of said layout through hole is 0.15-0.9mm, and the cross-sectional area is 0.2-0.8mm 2 , the hole pitch of the said layout through hole is 15-50mm, there is no interwoven silk thread in the said layout through hole and the area is larger than the single mesh area of ​​the screen; the said layout through hole is directly punched by punching knife Mesh formation, in order to prevent burrs or thread ends from loosening or cracking on the section where the through holes are laid,...

no. 2 example

[0047] A method for preparing vacuum tempered glass, comprising the following steps,

[0048] 1) Screen printing glue dot steps, such as figure 1 As shown, the screen structure for screen printing of the present invention includes a screen frame 1, a screen 2 fixedly arranged in the screen frame and coated with screen glue, and a plurality of through holes are arranged on the screen 3. The layout through-hole is circular, square, oval or triangular or any design shape or pattern, the diameter of the layout through-hole is 0.6mm, and the cross-sectional area is 0.4mm 2 , the hole pitch of the said layout through hole is 40mm, there is no interwoven silk thread in the said layout through hole and the area is larger than the single mesh area of ​​the screen; the said layout through hole is formed by punching the wire mesh directly by punching knife In order to prevent burrs or thread ends from loosening or cracking on the cross-section where the through-holes are arranged, there...

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Abstract

The invention discloses a preparation method of vacuum toughened glass. The method comprises the following steps, 1) sheet bonding; 2) posttreatment on bonded sheets; 3) sheet lamination: placing the bonded vacuum glass semi-finished on a bracket layer by layer, arranging division bar on the bottom of each group of bonded vacuum glass, wherein the division bar is a hollow tube or angle or heat resistant inorganic or rope with good heat conductivity; 4) high temperature edge sealing: heating the furnace to melt low melting point glass powder, then cooling and discharging, wherein for each additional layer of glass on the bracket, the heat preservation time in the high temperature zone of the furnace prolongs by 5-30 min compared with a single layer; and 5) vacuum edge sealing. The invention provides multilayer placing edge sealing, multiple layers of glass are arranged up and down and separated by division bars, and heating treatment improves the production efficiency by 2-5 times, and corresponding extension of the heating time by each additional layer can ensure the quality of production; and energy consumption increase is less than 20% while substantially increasing production efficiency.

Description

technical field [0001] The invention relates to the technical field of glass deep processing, in particular to a preparation method of vacuum tempered 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, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B23/24
CPCY02P40/57
Inventor 左树森
Owner 左树森