Method for sealing edge of vacuum glass

A vacuum glass and edge sealing technology, which is applied in glass forming, glass reshaping, glass manufacturing equipment, etc., can solve the problems of vacuum glass edge unevenness, small flow resistance, sealing failure, etc., and achieve neat and beautiful solder edges, Good air permeability, airtightness improvement effect

Inactive Publication Date: 2012-01-11
黄家军
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The melted glass solder flows into the gap between the glass plates due to capillary phenomenon. This method requires a large amount of solder, and the edges of the vacuum glass are uneven. When the two glasses are installed vertically, the force is uneven, the mechanical strength is not high, and the stress of the low-melting point glass solder is relatively large. Disadvantages. In the Chinese patent zL95108228.0 "vacuum flat glass and its manufacturing method" and zL96208977.X "vacuum flat glass", the edge of the glass plate is first "chamfered" and the solder is placed in the chamfering groove. To solve the above problems, but there is difficulty in distributing powder and low-melting point glass brazing material is easy to lose and not easy to enter the gap between glass plates when heating and sealing, and it is easy to cause the problem of poor air tightness
Chinese patent zL02256440.3 "Edge Sealing Structure of Vacuum Glass" proposes to put auxiliary sealing strips on the upper periphery of the lower flat glass to prevent the loss of solder liquid. None of the inward flows mentioned
But when the distance between the upper and lower layers of glass is greater than 0.5mm, the flow resistance is sma

Method used

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  • Method for sealing edge of vacuum glass
  • Method for sealing edge of vacuum glass
  • Method for sealing edge of vacuum glass

Examples

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Example Embodiment

[0019] Example 1: Such as figure 1 As shown, the inner impermeable layer is placed first, and the inner impermeable layer is formed by mixing glass powder and glass solder with appropriate water in a ratio of 5:1. Next, place the glass solder. Finally, the outer impermeable layer is applied, and the outer impermeable layer is mixed with alumina powder and water glass in a ratio of 2:1. Such as figure 2 As shown, the glass solder is heated and melted and condensed into a solid, and its volume becomes smaller. Part of the molten glass solder penetrates into the gap between the upper and lower glass layers. The outer impermeable layer can be easily removed.

Example Embodiment

[0020] Example 2: Such as Figure 5 As shown, the support is placed on the lower glass first, and then the inner impermeable layer is placed. The inner impermeable layer is composed of glass fiber, covered with the upper glass, and then glass solder is placed, and then the outer impermeable layer is placed around the outer impermeable layer. The permeation layer is mixed with glass powder and water glass in a ratio of 3:1. Put the vacuum glass original plate with the impermeable layer and glass solder into a vacuum furnace for heating, and wait until the bubbles in the glass solder melt are completely eliminated, stop heating, and cool it out. Before the bubbles in the glass solder melt are completely eliminated, the gas in the vacuum furnace must be continuously pumped out until the vacuum degree in the vacuum furnace reaches the set value (for example, 0.001pa). If the upper glass plate has air extraction holes, the original vacuum glass plate only needs to be heated in an o...

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Abstract

The invention provides a method for sealing edge of vacuum glass. The method is characterized in that: a glass soldering material is put on the periphery of a vacuum glass raw sheet; and an inner impermeable layer is arranged at the inner side of the glass soldering material so that the glass solder liquid is limited to flowing into the inner cavity of the vacuum glass raw sheet, wherein the inner impermeable layer is made from powdery or fibrous materials.

Description

technical field [0001] The invention belongs to the technical scope of vacuum sealing of glass, and in particular relates to a vacuum glass edge sealing method. Background technique [0002] In the vacuum glass sealing technology, the design of the edge sealing structure is the key technology to ensure that the periphery of the flat vacuum glass is not deformed, does not produce excessive stress, and does not leak air. In Chinese patent ZL94192667.2 "Method for manufacturing vacuum glass windows" Among them, the edge sealing structure is designed so that two pieces of glass are of different sizes, and the low melting point glass solder is placed on the edge steps. The melted glass solder flows into the gap between the glass plates due to capillary phenomenon. This method requires a large amount of solder, and the edges of the vacuum glass are uneven. When the two glasses are installed vertically, the force is uneven, the mechanical strength is not high, and the stress of the...

Claims

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Application Information

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IPC IPC(8): C03B23/24
Inventor 黄家军
Owner 黄家军
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