Metal-welded plain double-vacuum-layer glass with installing holes at edge sealed by sealing grooves

Abstract

The invention relates to a metal-welded plain double-vacuum-layer glass with installing holes at edge sealed by sealing grooves, which comprises an upper glass, a lower glass and an intermediate glass, the installing holes and extraction openings are combined as an integral body, the sealing strips are arranged on the lower surfaces of the upper glass and the intermediate glass as well as circumference of the extraction opening, the sealing grooves are arranged on the upper surface circumference of the intermediate glass and the lower glass as well as on the position corresponding to the extraction opening, the upper glass and the lower glass and the intermediate glass are rapidly heated and laminated at high temperature, the circumference can be welded together by pressurizing through an alloy solder in an atmosphere heating furnace, the extraction opening is enclosed by using metal solder in a vacuum furnace, and two enclosing vacuum layers are formed between the upper glass and the intermediate glass as well as between the intermediate glass and the lower glass. The vacuum glass and its production method have the advantages that the process is simple and the production efficiency is high, the prepared vacuum glass can eliminate the stress of the sealed edge and can keep the toughening characteristic of the toughened glass, so that toughened vacuum glass can be massively produced, and its usage life is increased.

Description

technical field [0001] The invention relates to the technical field of glass deep processing, in particular to a plane double-vacuum-layer glass with mounting holes on the sealing edge of a metal welding sealing groove and a manufacturing method thereof. Background technique [0002] As a new type of glass with the most energy-saving potential, vacuum glass has achieved large-scale production after more than ten years of research and development, and has been well applied in many fields, especially in the construction field; but there are also obvious The shortcomings are mainly low production efficiency, small production capacity, and inability to produce tempered vacuum glass, etc., which limit its popularization and application in a wider range; the existing large-scale production of vacuum glass uses high temperature (430-480°C) normal pressure The production process of lower edge sealing, low temperature (180-300°C) vacuuming and sealing, because it needs to be kept war...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a flat double-vacuum glass with mounting holes on the edge of the metal welded sealing groove and its manufacturing method for the defects of the existing vacuum glass. This vacuum glass and its manufacturing method are Simple, high production efficiency, the prepared tempered vacuum glass can not only reduce or eliminate the edge sealing stress but also maintain the tempered characteristics of tempered glass, can produce tempered vacuum glass in large quantities, and can increase its service life

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