KR19980014107A - Vacuum window manufacturing method using low melting point glass or torser - Google Patents

Abstract

The present invention enables the edge sealing of a vacuum window to minimize the loss of indoor heating heat through a window by joining the edges of the glass using a low melting point glass or a torsion seal to easily manufacture a vacuum window at room temperature without a high temperature vacuum chamber The present invention relates to a method of manufacturing a vacuum window using a low melting point glass or a torsion seal capable of reducing the use of heat energy and improving product productivity and production cost. In the production method, a low melting point glass is attached to the space edge between the glass and the glass, the glass is placed in a heating furnace at room temperature, the temperature is gradually increased until the low melting point glass is integrated with the glass, It is dried and sealed with Torr Seal which is a vacuum bonding agent for glass, The vacuum system draws air to create a vacuum window.

Description

Vacuum window manufacturing method using low melting point glass or torser

The present invention relates to a vacuum window capable of minimizing the loss of indoor heating heat through a window, and more particularly, to a vacuum window having a support by a screen printing method, in which a torus seal ), It is possible to weld the corners of the glass, thereby making it possible to easily manufacture a vacuum window at room temperature without using a high-temperature vacuum chamber. Therefore, it is possible to reduce the use of heat energy, The present invention relates to a vacuum window manufacturing method using a torsor which is a low melting point glass or a vacuum bonding agent for glass.

As a result of the development of architectural technology to meet this demand, research and development of windows that can minimize indoor energy loss of heating and cooling has been continued.

As a typical window for lowering the above-mentioned cooling / heating energy loss, there is a double window having two gaps with predetermined gaps.

The above-mentioned double window has a double window in which a space is formed between the glass and the glass with a predetermined distance between the two glasses. This is because the air exists in the space between the glass and the glass, Heat loss was high.

As a method to solve this problem, there is a double window which injects a low thermal conductivity gas (Argon gas, Krypton gas) between the glass and the glass, but the double window also has a limitation in lowering the heat transfer rate.

Accordingly, the vacuum window having excellent heat insulation is developed by supplementing the disadvantages of the above-described double windows. The vacuum window is used to maintain a narrow space between the glass windows in a vacuum (10 ^-6 torr) Which can reduce the heat conduction rate from 0.6 to 1.0 W / ㎡K, which is almost the wall level.

In the production of the above-mentioned vacuum window, as a method of vacuuming between glass, there are various kinds of spacing gauges such as a cylinder shape and a ball shape between the glass gates to seal the glass corners, and then vacuum is applied. There is an American formula that uses a laser in a vacuum chamber at about 500 ° C and then welds the corners of the glass to create a vacuum window. In the above-mentioned method, glass oxidized by a laser beam during laser welding is deposited on a reflective lens of a laser to block light or reduce efficiency. It is troublesome to use a separate vacuum chamber, Not only did productivity deteriorate due to diversification, but there was also a lot of manpower loss to make it.

In Australia, a filler-type glass interlayer spacing holder is placed, solder glass is applied to the edge of the glass, the glass and glass are put in a heating furnace at about 500 ° C, and a vacuum is drawn using a vacuum tube There is a problem in that a high temperature heating furnace is used as in the case of using a chamber and a cooling time is long when a vacuum window is manufactured.

The above-described object of the present invention is achieved by welding the edges of the glass, placing the vacuum window in a heating furnace, gradually melting the glass until the glass is integrated into the glass, and sealing the glass by melting or using a glass sealant, The vacuum window is then formed by vacuum-drying the glass tube through a vacuum tube at a low temperature, thereby producing a vacuum window using a low melting point glass or a vacuum bonding agent for glass.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing a state before a low-melting glass according to the present invention is sandwiched between glass plates.

Fig. 2 is an exemplary view showing a case where the low-melting glass according to the present invention is welded to glass corners. Fig.

[0030] [28]

1, 2: Glass 3: Support

10: Low melting point glass or torser

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is an exemplary view showing a state before welding a low-melting glass according to the present invention by sandwiching it between glass pieces, and FIG. 2 is an example showing a case where a low melting glass according to the present invention is welded to glass edges.

A vacuum window manufacturing method using a low melting point glass according to the present invention is a glass window having a support (support) 3 by screen printing, wherein a low melting point glass 10 is provided at a space edge between the glass 1 and the glass 2, (300 to 400 占 폚) heating furnace, and the temperature is gradually increased until the low melting point glass 10 is integrated with the glass and melt-sealed. Alternatively, a glass vacuum bonding agent such as a torus seal , And then vacuum is drawn from the vacuum system through a vacuum tube at a low temperature to produce a vacuum window.

The operation and effect of the vacuum window manufacturing method using the low melting point glass of the present invention will be described with reference to FIGS. 1 and 2.

First, as shown in FIG. 1, screen printing is once or repeatedly performed on a glass surface to form a support, and the low melting point glass 10 is placed on the glass 1 and the glass 2 To the space edge between them.

As described above, the glass having the low melting point glass 10 is placed in a heating furnace (not shown) at room temperature, and the temperature of the heating furnace is gradually increased.

The low melting point glass 10 attached between the glass 1 and the glass 2 by the heat rise of the heating furnace is melt-sealed together with the glass as shown in FIG.

As described above, when the low-melting glass 10 is integrated, the temperature is lowered and the air is drawn out through a vacuum tube into a vacuum system.

At this time, air is blown out after the temperature is applied so that the gas between the glass is filtered using a hot air heater or a heater.

On the other hand, when it is not easy to apply the temperature, it is possible to adopt a method of drawing air while extracting gas by forming a line that can insert an inert gas into one corner of the glass. In addition, if a vacuum bonding agent for glass, which is a bonding agent at room temperature, is used, the edges of the glass window can be contacted without using a heating furnace, so that a considerable time can be shortened.

As described above, the present invention provides a vacuum window manufacturing method in which a support is formed on a glass surface by screen printing, and the glass substrate is mounted so as to correspond to each other and sealed using a low melting point glass or a torsor seal which is a vacuum bonding agent for glass. Since a low-melting glass is applied between the edge spaces of the glass and is melt-sealed in a heating furnace at room temperature so that the low-melting glass is integrated with the glass, or dried and sealed at room temperature using a torus seal or the like, It is possible to minimize the use of heat energy due to the manufacture of the vacuum window and to improve the productivity of the product and reduce the production cost.

The present invention relates to a method of manufacturing a glass substrate by printing a support plate of a predetermined thickness on a glass surface by screen printing and then mounting two glass plates correspondingly and applying a low melting point glass between the glass and the corner space of the glass, Or by using a torser seal, which is a vacuum bonding agent for glass, at room temperature, it is possible to manufacture a vacuum window at a low temperature, minimize the use of heat energy due to the manufacture of a vacuum window, It is an object of the present invention to provide a method of manufacturing a vacuum window using a vacuum bonding agent for glass such as a low-melting glass or a torus seal which can reduce the production cost.

Claims (2)

A method for manufacturing a vacuum window by welding an edge of a glass is characterized in that a low melting glass 10 is attached to a space edge between the glass 1 and the glass 2 and the glass is cooled at a low temperature The glass substrate 10 is placed in a heating furnace and the temperature is gradually increased until the low melting point glass 10 is integrated with the glass. Then, the glass substrate 10 is melt-sealed or dried and sealed at room temperature using a glass vacuum sealant, And a vacuum window is formed by extracting air from the system. The vacuum window manufacturing method using the low melting point glass or the torser seal. The vacuum window manufacturing method according to claim 1, wherein the temperature of the heating furnace is about 300 to 400 ° C.