Microwave-heated planar vacuum glass edge-sealed and port-sealed by using sealing strips, and preparation method thereof

Abstract

The invention relates to microwave-heated planar vacuum glass which is edge-sealed and port-sealed by using sealing strips. The glass comprises upper glass and lower glass which are planar glass. An air-exhaust port is provided on the upper glass. At least one sealing strip is provided at each of the peripheries of the upper glass and of the air-exhaust port. At least two sealing strips are provided at the periphery of the lower glass. At least one sealing strip is provided on the lower glass at the place corresponding to the air-exhaust port. The sealing strips on the upper glass are inserted between or in the sealing strips on the lower glass. The peripheries of the upper and lower glass are welded together by using a low-temperature glass solder under normal pressure in a microwave oven. The air-exhaust port is automatically sealed by using a metal solder in a vacuum furnace. The vacuum glass and the preparation method thereof have simple process. The prepared vacuum glass and tempered vacuum glass can overcome defects of prior arts. Air-tightness of vacuum glass can be effectively ensured. Strength, thermal insulation performance and sound insulation performance of the glass can be enhanced.

Description

technical field [0001] The invention relates to the technical field of glass deep processing, in particular to a plane vacuum glass with microwave heating sealing strip 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 air extraction port. The edge sealing of this vacuum glass is carried out in a vacuum f...

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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 March 2012, but when using low-temperature glass solder to seal the edge, because the low-temperature glass solder is made of various oxidized 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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