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Convex low-altitude glass welded by metal solders and subjected to edge sealing by groove and manufacturing method of glass

A low-altitude glass and glass technology, applied in glass manufacturing equipment, glass production, glass molding, etc., can solve the problems of hollow glass failure, long heating time, slow cooling speed, etc., to increase the contact area, improve transparency, reduce The effect of small 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

Due to the organic sealant itself containing moisture, poor anti-aging performance, poor air tightness and other reasons, the insulating glass often fails, which seriously affects the service life of the insulating glass.
[0004] The air in the air layer of insulating glass is sealed between two pieces of glass. Due to the change of external temperature, the pressure of the air layer will change. When the external temperature is high, the pressure is greater than atmospheric pressure and the glass is convex. When the external temperature is low, the pressure is lower than atmospheric pressure. , The glass is concave, resulting in the so-called "breathing" phenomenon, which affects the normal service life of the insulating glass
[0005] The patent "convex low-altitude glass, flat low-altitude glass and its preparation method" applied by the applicant of the present invention describes the edge sealing of low-altitude glass in a high-temperature edge-sealing furnace by using conventional heating to weld two pieces of glass together with low-temperature solder. The disadvantages of conventional heating are long heating time, slow heating rate, slower cooling rate, high energy consumption, and poor heating uniformity, especially when making Low-E low-altitude glass, because the Low-E film seriously restricts radiation heat transfer, so its disadvantages It is more prominent; its disadvantage is that the edge banding frame needs to be sintered at high temperature, and the edge banding groove of the press also needs high temperature treatment. For glass that does not need to be tempered, it not only wastes energy but also easily leads to deformation of the glass at high temperature ; The etching process of the edge sealing groove is not only not conducive to the physical and mental health of workers, but also not conducive to environmental protection; in addition, the direct use of metal or alloy as solder has poor bonding force with glass

Method used

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  • Convex low-altitude glass welded by metal solders and subjected to edge sealing by groove and manufacturing method of glass
  • Convex low-altitude glass welded by metal solders and subjected to edge sealing by groove and manufacturing method of glass
  • Convex low-altitude glass welded by metal solders and subjected to edge sealing by groove and manufacturing method of glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Example 1: see figure 1 , the low-altitude glass is composed of two 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 temperature with th...

Embodiment 2

[0073] Example 2: see figure 2 , one of the two pieces of low-altitude glass is low-emissivity glass, and the other is tempered glass or semi-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 uppe...

Embodiment 3

[0077] Embodiment 3: see image 3 , the two pieces of glass of the low-altitude 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-emissivity glass are cut according to the shape and size of the low-altitude 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...

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Abstract

The invention discloses low-altitude glass. The low-altitude glass is characterized in that upper glass and lower glass are convex; the welding periphery of the upper glass is provided with an edge sealing strip frame, and the welding periphery of the lower glass is provided with an edge sealing groove; and the upper and lower glass are welded together by metal or alloy solders in a high-temperature edge sealing furnace, so that the low-altitude glass is simpler and more convenient to manufacture, and a sealing effect is ensured by the embedding combination of the edge sealing strip frame and the edge sealing groove. A manufacturing method of the low-altitude glass provided by the invention is simple in process, low in cost and high in production efficiency, can ensure reliable sealing connection and the good sealing effect, can be used for manufacturing low-altitude glass in mass by virtue of a one-step method, and not only can be used for manufacturing common low-altitude glass, but also is particularly suitable for manufacturing of tempered low-altitude glass.

Description

technical field [0001] The invention relates to the processing and manufacturing of low-altitude glass, in particular to a method for making low-altitude glass and its products. Background technique [0002] With the strengthening of environmental protection and energy saving awareness, insulating glass has been widely promoted and applied, effectively improving the thermal insulation and sound insulation performance of doors and windows. The distance between two pieces of flat glass of insulating glass, that is, the thickness of the air layer determines the effect of heat preservation and sound insulation. The thicker the air layer, the better the heat preservation and sound insulation effect, but increasing the thickness of the air layer will increase the thickness of the door and window frames. Therefore, it will increase the production cost of doors and windows; other methods, such as the use of coated glass, film sticking and filling inert gas in the middle of insulatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/24
CPCY02P40/57
Inventor 戴长虹
Owner 戴长虹
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