Tempered vacuum glass edge-sealing method and tempered vacuum glass edge-sealing device

Abstract

A tempered vacuum glass edge-sealing method utilitzes a constant-temperature metal plate to control the local temperature of a tempered vacuum glass preformed unit according to the thermal stress distribution characteristic of the tempered vacuum glass preformed unit in order to keep the local temperature between 100 DEG C and 400 DEG C in the process of heating and brazing for sealing the circumference of the tempered vacuum glass. A tempered vacuum glass edge-sealing device comprises a second heating furnace, wherein a heating source is arranged on the top in the second heating furnace, the constant-temperature metal plate is arranged in the middle of the second heating furnace, and a heat-dissipating passage is arranged in the constant-temperature metal plate, and is connected with a liquid or gas circulation thermostat. The invention utilizes the constant-temperature metal plate with constant temperture to keep the temperature of the key part of the tempered vacuum glass in order to keep the tempering characteristic in the process of edge sealing. The heating process is stable, the heated area can be controlled, the glass cannot be broken, and the requirements on the mass production of high-quality tempered vacuum glass can be met.

Description

Technical field: [0001] The invention relates to the field of physics, in particular to optical technology, in particular to vacuum coating technology and laser processing technology, and in particular to an edge sealing method and device for tempered vacuum glass. Background technique: [0002] The thermal insulation and sound insulation performance of vacuum flat glass is much better than that of widely used insulating glass, and it is the best energy-saving glass at present. Vacuum flat glass is made by evacuating the gap between two pieces of glass welded and sealed around them into a vacuum state. The gap between the two pieces of glass is very small, only 0.1-0.3mm. In order to make the glass withstand the external atmospheric pressure in a vacuum state, many supports need to be placed between the two pieces of glass. Generally, there is no effect on the light transmission performance of the glass. influences. In order to maintain the vacuum performance, welding and ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for edge sealing of tempered vacuum glass, which solves the technical problem that the tempered vacuum glass in the prior art is difficult to maintain the tempering characteristics during the edge sealing process.

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