Method for sealing vacuum glass and vacuum glass product

Abstract

The invention discloses a method for sealing vacuum glass and a vacuum glass product thereby. The method comprises the following specific steps: preparing a metallized layer solidified together with a glass plate by the sintering technology on a surface to be sealed at the edge of the glass plate; and hermetically welding and connecting a metal sealing sheet between the metallized layers of two glass plates to realize the hermetic seal of the edges of the two glass plates. In the method, the metallized layer is sintered on the surface of each glass plate, the metallized layers and the metal sealing sheet are used for hermetically sealing the edges of the glass plates, and the method provides a brand-new technical means for manufacturing vacuum glass. The method disclosed by the invention has the advantages of firm connection of sealing parts, high air tightness, good heat shock resistance and the like. In addition, because of the use of the metal sheet, the vacuum glass product can better adapt to temperature deformation generated by temperature difference between an inner glass plate and an outer glass plate in the vacuum glass, and the vacuum glass can be guaranteed to be used safely.

Description

technical field [0001] The invention relates to a vacuum glass sealing method and a vacuum glass product processed by the method. Background technique [0002] Vacuum glass, which is composed of multiple glass plates, has attracted people's attention due to its excellent sound insulation, heat insulation, and thermal insulation properties, and has become a subject of intense research. [0003] The existing vacuum glass sealing methods mainly include: [0004] (1) Use low-melting-point glass frit to melt and seal. The sealing temperature is generally around 400°C to 500°C. The low-melting-point glass frit is melted by flame or electric heat to complete the composite sealing between glass plates. The low-melting glass used in this process is usually lead-zinc (PbO-ZnO) sealing glass. Due to the harm of lead to the environment and human body, this material is not conducive to environmental protection requirements in the long run, and its processing equipment and technology are...

AI Technical Summary

Problems solved by technology

Due to the excellent heat insulation performance of vacuum glass, a large temperature difference between the inner and outer glass plates is likely to occur during use. The glass plate on the high temperature side expands, and the glass plate on the low temperature side contracts. Therefore, figure 1 Whether the vacuum glass of the shown structure is used as a glass window or as a thermal insulation component, it is easy to produce such as figure 2 The temperature deformation shown above, and once the stress formed at the sealing edge of the glass plate exceeds the bearing limit of the sealing edge, it will definitely cause damage to the vacuum glass, and thus bring danger to the use place of the vacuum glass

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