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Convex low-altitude glass welded by glass solders in microwave manner and subjected to edge sealing by strip frame and groove, and manufacturing method of glass

A low-altitude glass, low-temperature glass solder technology, applied in glass forming, glass re-forming, glass manufacturing equipment and other directions, can solve the problems of hollow glass failure, long heating time, slow cooling speed, etc. The effect of improving transparency and reducing 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 more prominent

Method used

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  • Convex low-altitude glass welded by glass solders in microwave manner and subjected to edge sealing by strip frame and groove, and manufacturing method of glass
  • Convex low-altitude glass welded by glass solders in microwave manner and subjected to edge sealing by strip frame and groove, and manufacturing method of glass
  • Convex low-altitude glass welded by glass solders in microwave manner and subjected to edge sealing by strip frame and groove, and manufacturing method of glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: see figure 1, the low-altitude glass is composed of two pieces of glass, one of which is low-emissivity glass. Set up edge sealing grooves at the welding place, and carry out edge grinding, chamfering, cleaning and drying, and use polyester screen to print low-temperature glass powder paste on the upper and lower glass to make edge sealing strip frames; after the upper and lower glass are combined, the upper glass The edge banding strip frame can be embedded in the edge banding groove of the lower glass; secondly, put the two pieces of glass into the mold, put them in the 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 A convex surface is formed downwards and lowered to room temperature with the furnace; if the shape of the edge banding strip changes during the sintering process, it can be made smooth by mechanical processing such as turning, grinding, etc.; ...

Embodiment 2

[0067] 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, set up edge sealing grooves at the peripheral welding of the lower glass, and perform edge grinding, chamfering, cleaning, and drying. Use a spray gun to spray low-temperature glass powder paste on the upper and lower glass to form an edge sealing strip frame, and combine the upper and lower glasses. Finally, the edge banding strip frame of the upper glass can be fitted into the edge banding groove of the lower glass; secondly, put the upper glass into the mold, place it in a hot bending furnace, and heat it up to the softening temperature of the glass at 550-750°C, relying on the glass Its own gravity makes the glass downward to form a convex surface, and it is strengthened with the furnace down to room temperature or quenched to room temperature to obtain the upper glass with edge sealing strip frame...

Embodiment 3

[0072] 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 edge sealing grooves at the peripheral welding of the lower glass, and perform edge grinding, chamfering, cleaning and drying, use nylon screen to print low-temperature glass powder paste on the upper and lower glass to make edge sealing strips, and combine the upper and lower glass Finally, the edge banding strip frame of the upper glass can be fitted into the edge banding groove of the lower glass; secondly, put the two pieces of glass into two forming molds respectively, the forming mold has an upper mold and a lower mold, and the glass is sandwiched Between the mold and the lower mold, and can apply pressure to clos...

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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 peripheries of the welding surfaces of the upper and lower glass are provided with an edge sealing strip frame and an edge sealing groove; and the upper and lower glass are welded together by glass solders in a microwave oven, 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; and the low-altitude glass manufactured by the method is high in wind pressure resistance and good in heat insulation and sound insulation.

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