Metal-welded sealed plain double-vacuum-layer glass with edges sealed by sealing strips and manufacturing method thereof

Abstract

Metal-welded sealed plain double-vacuum-layer glass with edges sealed by sealing strips is disclosed. The plain double-vacuum-layer glass comprises upper glass, lower glass and middle glass which are plain glass. The upper glass and the middle glass are provided with one to four air extracting holes. The periphery of the lower surface of the upper glass, the periphery of the lower surface of the middle glass and the periphery of each air extracting hole are respectively provided with at least one sealing strip. The peripheries of the upper surfaces of the middle glass and the lower glass are provided with at least two sealing strips. A position on the lower glass, which is corresponding to each air extracting hole, is provided with at least one sealing strip. Peripheries of the three sheets of glass are welded under elevated pressure by alloy solder in an atmosphere heating furnace. Each air extracting hole is sealed by utilization of metal solder in a vacuum furnace. A manufacturing method of the plain double-vacuum-layer glass is simple in process and high in production efficiency. The manufactured vacuum glass eliminates edge sealing stress and maintains tempered characteristics of tempered glass. Tempered vacuum glass can be produced in a large scale, and the service lifetime of the tempered vacuum glass can be prolonged.

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 metal welding sealing strip edge sealing 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 warm for a period of time at th...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a flat double-layer vacuum glass with metal welded sealing strip edge sealing and its manufacturing method for the defects of the existing vacuum glass. This vacuum glass and its manufacturing method are simple in process, High production efficiency, the prepared vacuum glass can not only 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

Images