Microwave-welded planar tempered vacuum glass edge-sealed by using sealing strips and sealing grooves and provided with air-exhaust port

Abstract

The invention relates to microwave-welded planar tempered vacuum glass which is edge-sealed by using sealing strips and sealing grooves and which is provided with an air-exhaust port. The glass is characterized in that upper glass and lower glass are planar tempered glass. The air-exhaust is provided on the upper glass. Sealing strips are provided at the periphery of the upper glass and at the periphery of the air-exhaust port. Sealing strips and sealing grooves are provided at the periphery of the lower glass and at the place corresponding to the air-exhaust port. The peripheries of the upper glass and lower glass are welded together by using a 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. A sealed vacuum layer is formed between the upper glass and the lower glass. One or two layers of supporters are provided in the vacuum layer. The sealing strips and the supporters are composed of tempered glass ink or a high-polymer. The high-polymer is first prepared into a pre-polymer. When the glass is tempered, the pre-polymer is prepared on the glass or on the tempered glass ink. The pre-polymer is cured into elastomer under room temperature or high temperature. The pre-polymer or elastomer can be automatically adapt to the changes in the height of the vacuum layer. Volatile gases in the elastomer can be eliminated under high temperature and high vacuum.

Description

technical field [0001] The invention relates to the technical field of glass deep processing, in particular to a flat tempered vacuum glass with a microwave welding sealing strip groove edge sealing and an air suction port 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 ...

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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.

In addition, it is difficult to achieve the required height for sealing strips and supports made of low-temperature glass powder or low-temperature glass solder. When tempering, the sealing strip and the support are melted at high temperature, and its height is further reduced

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