Microwave-heated planar dual-vacuum-layer glass with edges and openings being sealed by sealing strips and sealing grooves

Abstract

The invention discloses microwave-heated planar dual-vacuum-layer glass with edges and openings being sealed by sealing strips and sealing grooves. The planar dual-vacuum-layer glass comprises upper glass, lower glass and middle glass, wherein the upper glass and the middle glass are provided with extraction openings; the lower surfaces of the upper glass and the middle glass and the peripheries of the extraction openings are provided with the sealing strips; sealing grooves and the sealing strips are arranged on the peripheries of the upper surfaces of the middle glass and the lower glass and at corresponding positions of the extraction openings; the peripheries of the three pieces of glass are welded together in a microwave oven under a normal pressure through a low-temperature glass solder; the extraction openings are automatically enclosed in a vacuum furnace by using a metal solder; two enclosed vacuum layers are formed among the three pieces of glass; and support objects are arranged in the vacuum layers in a lattice form. The vacuum glass and a manufacturing method thereof are simple in process. Through adoption of the manufactured vacuum glass and toughened vacuum glass, defects in the prior art can be overcome; the airtightness of the vacuum glass can be effectively ensured; and the strength, heat-insulating performance and sound-insulating performance of the vacuum glass can be enhanced.

Description

technical field [0001] The invention relates to the technical field of glass deep processing, in particular to a flat double-vacuum-layer glass with microwave-heated sealing strip groove edge sealing and a manufacturing method thereof. Background technique [0002] Vacuum glass is a new type of energy-saving glass. Vacuum glass can not only solve the "breathing" problem of insulating glass used in large quantities, but also has good heat and sound insulation performance, high wind pressure resistance, small thickness and long service life. advantage. Vacuum glass is generally composed of two to three pieces of glass, a cavity is formed between two adjacent pieces of glass, and an edge sealing structure is arranged around the glass, and the cavity is evacuated to form a vacuum layer. Vacuum glass can be divided into two types according to the way of forming the vacuum layer. One is the vacuum glass without exhaust port. The edge sealing of this vacuum glass is carried out in...

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Problems solved by technology

[0003] The applicant of the present invention disclosed a series of vacuum glass without air extraction port and its manufacturing method in the patent of vacuum glass applied in October, 2012. At high temperature and vacuum, the air and moisture absorbed by the solder, the volatile substances in the solder, the gas dissolved in the solder during the production process, and the decomposition of some oxides in the solder will cause a large number of bubbles in the solder , which greatly weakens the performance of the solder, especially the airtightness, which greatly affects the feasibility of this method

The existing mass-produced vacuum glass is all vacuum glass with an air extraction port, but there are complex manufacturing processes, low air extraction temperature (incomplete air extraction), single-piece vacuuming, high cost, low production capacity, and inability to make toughened vacuum glass. Cons of glass etc.

[0004] The patent for vacuum glass filed by the applicant in October 2012 discloses a series of vacuum glass welded by microwave heating and its manufacturing method, but microwave heating is prone to the phenomenon of ionization and sparking of thin gas under vacuum

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