Vacuum glass, method for preparing same and vacuum glass production line

Abstract

The invention discloses vacuum glass, a method for preparing the same and a vacuum glass production line. The method for preparing the vacuum glass includes carrying out vacuum exhaust on cleaned first glass, then plating tin materials on the periphery of the first glass and forming first tin layers connected with the first glass in a gas-tight manner; carrying out vacuum exhaust on cleaned secondglass, then plating tin materials on the periphery of the second glass and forming second tin layers connected with the second glass in a gas-tight manner; allowing the first glass and the second glass to coincide with each other, then placing the first glass and the second glass in vacuum furnaces, carrying out vacuumizing, heating the first tin layers and the second tin layers by the vacuum furnaces to melt the first tin layers and the second tin layers and integrate the first tin layers and the second tin layers, and forming sealed vacuum cavities between the first glass and the second glass. The first tin layers and the second tin layers cling to one another when the first glass and the second glass coincide with each other. The vacuum glass, the method and the vacuum glass productionline have the advantages that the method includes simple processes and is high in operability, and the vacuum glass produced by the aid of the method and the vacuum glass production line is good in compressive strength and product performance.

Description

technical field [0001] The invention relates to the field of glass, in particular, to a vacuum glass, a preparation method thereof, and a vacuum glass production line. Background technique [0002] Due to its vacuum characteristics, vacuum glass can effectively isolate heat transfer, so it has the best thermal insulation performance, which is the development trend of building energy conservation. It is of great significance for my country to reduce building energy consumption and achieve low-carbon development. [0003] The existing vacuum glass technology mainly uses glass frit for sealing, and then vacuumizes and seals and exhausts, such as patent number CN103588386. Due to the high melting point of glass powder, the sealing temperature is high, which will affect the tempering during sealing. The strength of the glass. [0004] Therefore, low-temperature sealing of vacuum glass is a development trend. Patent CN105541132 describes a manufacturing method of vacuum glass. Fi...

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Problems solved by technology

[0003] The existing vacuum glass technology mainly uses glass frit for sealing, and then vacuumizes and seals and exhausts, such as patent number CN103588386. Due to the high melting point of glass powder, the sealing temperature is high, which will affect the tempering during sealing. strength of glass

[0004] Therefore, low-temperature sealing of vacuum glass is a development trend. Patent CN105541132 describes a manufacturing method of vacuum glass. First, a metallized layer is prepared on the glass, and then the glass is tempered, and then the metallized glass is sealed with metal solder. Then, the sealing process is complicated and the cost is high. Secondly, the vacuum exhaust and sealing are completed in a vacuum chamber, which increases the difficulty of realization.

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