Metal solder-welded and groove-edge-sealed convex vacuum glass and manufacturing method thereof

A vacuum glass, welding surface technology, applied in glass manufacturing equipment, glass production, glass forming and other directions, can solve the problems of glass breakage, difficult cloth, glass deformation, etc., to increase the contact area, improve transparency, reduce The effect of tensile stress

Inactive Publication Date: 2013-03-06
戴长虹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the patent CN94192667.2 "Method for Manufacturing Vacuum Glass Windows", the edge sealing structure is designed so that the upper glass is slightly smaller than the lower glass in the two glasses, and the low melting point glass solder is placed on the edge steps formed by the two glasses, and the melted glass Solder flows into the gap between two pieces of glass due to capillary phenomenon. This method is the most representative and practical edge sealing technology at present, but it has the disadvantages of large amount of solder, uneven edges and high stress; patent CN95108228.0 "vacuum Flat glass and its manufacturing method" and CN96208977.X "vacuum flat glass", the edge of the glass plate is used to "chamfer" first, and the solder is placed in the chamfering groove. This method has the difficulty of distributing and the low-melting point glass solder is heated. Deficiencies that are easily lost during fusing and sealing; the patent CN02256440.3 "vacuum glass edge sealing structure" is to put auxiliary sealing strips on the upper periphery of the lower flat glass to prevent the loss of solder liquid. Although this method solves the problem of solder liquid's outward loss , but the process is complicated, and the auxiliary sealing strip takes up a large space, and it cannot solve the problem that the solder liquid flows into the glass; the edge sealing method of the vacuum glass proposed in the patent CN200620070302.7 "fully transparent vacuum glass" is to make the edge of the glass together with the glass The disadvantage is that the edge banding is not only expensive to manufacture but also cannot restrict the flow of low-temperature solder to the inside of the glass; patent CN200920314752.X "Edge banding structure of vacuum glass" is based on the glass and the The top glass and/or the base glass between the edge of the glass is made with a geometric filling groove, although it can improve the adhesion of the sealing filler between the base glass and the top glass, but the filling groove of the upper and lower glass is difficult. At the same time, the sealing packing is filled, and the random flow of the sealing packing cannot be restricted; Patent CN201010228110.5 "A Vacuum G

Method used

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  • Metal solder-welded and groove-edge-sealed convex vacuum glass and manufacturing method thereof
  • Metal solder-welded and groove-edge-sealed convex vacuum glass and manufacturing method thereof
  • Metal solder-welded and groove-edge-sealed convex vacuum glass and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Embodiment 1: see figure 1 , the vacuum glass is composed of upper and lower pieces of glass, one of which is low-emissivity glass. Edge sealing grooves are opened at the welding place, and edge grinding, chamfering, cleaning and drying are carried out. On the upper glass, the low temperature glass powder paste is printed on the upper glass to form an edge sealing strip frame; the upper glass has two edge sealing The frame and the lower glass have two edge sealing grooves. After the upper and lower glass are combined, the edge sealing strip frame of the upper glass can be embedded in the edge sealing groove of the lower glass; Make or spray commercially available silver paste as a transition layer; secondly, put two pieces of glass into the mold, place them in a hot bending furnace, heat up to the softening temperature of the glass at 550-750°C, and rely on the gravity of the glass itself to make the glass downward to form a convex surface , and drop to room temperatur...

Embodiment 2

[0073] Example 2: see figure 2 , one of the two pieces of vacuum glass is low-emissivity glass, and the other is tempered glass or half-tempered glass. For radiant glass, edge sealing grooves are set at the peripheral welding of the lower glass, and the edges are ground, chamfered, cleaned and dried, and the low-temperature glass powder paste is sprayed on the upper glass with a spray gun to form an edge sealing strip frame, in which the upper glass has An edge banding frame, the lower glass has an edge banding groove, after the upper and lower glass are combined, the edge banding frame of the upper glass can be embedded in the edge banding groove of the lower glass; after the upper and lower glass are dried, the edge banding Print or spray a layer of paste containing low-temperature glass powder on the position of the strip frame and edge sealing groove, and then print or spray a layer of commercially available silver paste as a transition layer; secondly, put the upper glas...

Embodiment 3

[0077] Embodiment 3: see image 3, the two pieces of glass of the vacuum glass are tempered glass or semi-tempered glass, one of which is low-emissivity glass, and its production method is as follows: first, a piece of flat glass and a piece of low-emission glass are cut according to the shape and size of the vacuum glass to be produced. , set up an edge sealing groove at the peripheral welding place of the lower glass, and carry out edge grinding, chamfering, cleaning and drying, and use a nylon screen to print a low temperature glass powder paste on the upper glass to form an edge sealing strip frame, in which the upper glass has There is an edge banding frame and the lower glass has an edge banding groove. After the upper and lower glass are combined, the edge banding frame of the upper glass can be embedded in the edge banding groove of the lower glass; secondly, put the two pieces of glass into two In a forming mold, the forming mold has an upper mold and a lower mold, th...

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Abstract

The invention relates to vacuum glass. The vacuum glass is characterized in that each of upper glass and lower glass is convex glass, an edge sealing strip frame is arranged at the welded periphery of the upper glass, an edge sealing groove is arranged at the welded periphery of the lower glass, and the upper glass and the lower glass are welded together by utilizing metal or alloy solder in a vacuum edge sealing furnace; and the manufacturing of the vacuum glass is simpler and more convenient, and the matching of the edge sealing strip frame and the edge sealing groove can ensure a good sealing effect. The method has the advantages of simpleness in manufacturing process, low cost, high production efficiency, reliability in sealing and connecting and good sealing effect; the one-step large-batch preparation of the vacuum glass without exhaust ports can be realized by utilizing the technology, and the manufactured vacuum glass is strong in resistance to wind pressure and good in heat insulation and sound insulation; and the method can be used for manufacturing the ordinary vacuum glass and is particularly suitable for manufacturing tempered vacuum glass.

Description

technical field [0001] The invention relates to the processing and manufacturing of vacuum glass, in particular to a method for making vacuum glass and its products. Background technique [0002] Vacuum glass is a new type of energy-saving and environmentally friendly product, which can be widely used in industrial and agricultural fields such as building doors and windows, glass curtain walls, solar products, agricultural greenhouses, refrigerators and refrigerators, and daily necessities for residents. Soundproofing and finishing materials. In the process of making vacuum glass, the structure and technology of edge sealing is the key technology to ensure that the periphery of vacuum glass is not deformed, does not produce excessive stress, does not leak air, and maintains the characteristics of tempered glass. In the patent CN94192667.2 "Method for Manufacturing Vacuum Glass Windows", the edge sealing structure is designed so that the upper glass is slightly smaller than ...

Claims

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Application Information

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IPC IPC(8): C03B23/24
CPCY02P40/57
Inventor 戴长虹
Owner 戴长虹
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