Vacuum plate glass and manufacturing method thereof

Abstract

The invention relates to vacuum plate glass and a manufacturing method thereof, belonging to the vacuum field. The vacuum plate glass comprises bottom plate glass and panel glass, wherein upward stripe-type bumps which are connected end to end to form a frame are formed at the periphery of the bottom plate glass, dot-like bumps which are equally spaced horizontally and vertically are formed in theframe, the dot-like bumps are supporting columns of a vacuum room, and the supporting columns and a bottom plate which are made from a same material are integrated; the panel glass is plate glass; the panel glass is laminated on the bottom plate glass, air therein is extracted, an exhaust hole is sealed to obtain the vacuum plate glass. The manufacturing method comprises the following steps: carrying out primary continuous forming with three calenders; pressing the bottom plate glass by means of the first calender; pressing the panel glass by means of the second calender; covering the bottomplate glass with the panel glass; feeding the two into the third calender; pressing the two integrally; then cutting the same; and carrying out thermal treatment to obtain the vacuum panel glass. Thetechnical process is simple in flow and suitable for mechanical operations, so that the production cost is lowered effectively; and the periphery needs not be sealed in a dissolved manner, so that theenergy sources are saved.

Description

technical field [0001] The invention belongs to the field of vacuum applications, in particular to vacuum flat glass. Background technique [0002] Existing vacuum flat glass is to arrange metal support column between two sheets of flat glass, then, the periphery of the glass is melt-sealed, the air inside is taken out, and then the air hole is sealed to become vacuum flat glass. This kind of support column is very small, generally a c-shaped support column with a height of 0.3 mm, which cannot be seen by the human eye one meter away. 2500 grain support columns to resist atmospheric pressure. It is difficult to deploy so many and such a small support column manually, and a machine must be used. This machine is a high-precision product and the price is high; the deployed support column cannot be missing two consecutive points, which requires high-precision The instrument is used for detection, and the price of this instrument is also very high. These investments are apporti...

AI Technical Summary

Problems solved by technology

It is difficult to deploy so many and such a small support column manually, and a machine must be used. This machine is a high-precision product and the price is high; the deployed support column cannot be missing two consecutive points, which requires high-precision The instrument is used for detection, and the price of this instrument is also very high. These investments are allocated to the product, which makes the price of the product high and affects the promotion and use

The four sides of the glass are sealed by fusion, and the energy utilization rate of the fusion sealing process is very low, which not only causes energy waste, but also makes the cost high; therefore, it needs to be improved

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