KR101881072B1 - Manufacturing method of vacuum glass for sash - Google Patents

Abstract

A vacuum glass manufacturing method for a chassis is disclosed. A method of manufacturing a vacuum glass for a chassis according to the present invention comprises the steps of: preparing a first glass panel and a second glass panel by cutting glass panels of the same size; 120) forming a pillar on the upper surface of the second glass panel; 130. A method for manufacturing a hot-melt adhesive sheet, comprising the steps of: (a) applying a hot-melt to an upper surface of a second glass panel to form a hot-melt applied layer; 140. A method for manufacturing a display device, comprising: 140) stacking a first glass panel on an upper surface of the second glass panel; 150. A method for fabricating a semiconductor device, comprising the steps of: (a) performing a chamber evacuation by drawing a first glass panel and a second glass panel into a vacuum chamber; 160) pressing the first glass panel and the second glass panel in a vacuum chamber in which chamber exhaustion is performed so that the open portion formed in the hot melt coating layer is sealed; (170) a step of cooling the first glass panel and the second glass panel from the vacuum chamber and cooling the glass panel at a normal temperature; And forming a thiocall layer by applying a Thiocall onto the hot-melt coated layer so that the hot-melt coated layer does not contact with the outside air. In step 120, gravure printing or gravure printing using the resin material Characterized by forming a filler by silkscreen printing.

Description

TECHNICAL FIELD [0001] The present invention relates to a vacuum glass manufacturing method for a chassis,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a vacuum glass in which a space between two or more stacked glass panels is vacuum-processed, and more particularly, to a method of manufacturing a vacuum glass for a chassis used as a construction material.

Chassis glass used as building material is a material that finishes the exterior of the building. Especially, it is very important in view of the trend that large glass panel is widely used.

However, glass panels as building materials have disadvantages in terms of energy efficiency. That is, since the insulation rate is significantly lower than that of the material for the wall, a building using a large glass panel is ineffective in the indoor cooling efficiency in the summer, and the indoor heating efficiency is lowered in the winter.

In order to solve this problem, the inner space of the double glass is kept in a vacuum state, so that a vacuum glass having a heat shielding effect and a soundproofing effect has appeared.

Recently, vacuum glass has been used as a high-grade building material. In the vacuum glass manufacturing process according to the prior art, a TPS (Thermo Plastic Spacer) is inserted between two glass plates or a bamboo is set between two glass plates. After sealing, the inside air is sucked through the exhaust pipe formed on the surface of one glass to make the internal space between the glass plates vacuum.

However, there are some problems in this process. One is that the rate of defects such as cracks on the glass plate during the process of sucking in air through the exhaust pipe is very high. There is a problem that the manufacturing cost is unrealistically as high as about 200,000 won per 1 cubic meter because the process itself is complicated and the yield is low.

On the other hand, in order to seal the two glass plates, the glass plate is heated at a high temperature of 4 to 500 ° C. In this case, deformation of the base may occur during the process, so that a bar having sufficient heat resistance must be used. When a thin bar made of a material such as a metal having sufficient heat resistance is used, the process is complicated because a glass plate is required to be laminated on one side of the glass plate and then the alignment of the thin film is maintained. In addition, there is a problem in that it is difficult to adequately disperse the pressure from outside by using a bare material made of a material having no elasticity.

In addition, when a high-temperature heating process is performed using a low-E glass in which a metal or metal oxide is coated on a glass surface, which is often used as a building material, the coating may be peeled off.

On the other hand, apart from the problem of the manufacturing process as described above, the vacuum glass according to the conventional technique generally has a period of 2 to 3 years in which the vacuum state is maintained, and it is difficult to exceed 5 years.

Vacuum glass panels used in PDP panels are considered to be safe from the viewpoint of the life of the PDP panel itself, but the situation of vacuum glass as a building material is different.

In other words, it is the most important problem to be solved by the vacuum glass as the building material to maintain the vacuum condition fully due to the characteristics of the building materials which are used for at least 10 years and for 2 ~ 30 years at least once upon construction.

The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a vacuum glass manufacturing method which improves the yield by lowering the manufacturing cost by simplifying the manufacturing process of the vacuum glass and preventing breakage in the intake process through the exhaust pipe The purpose of that is to provide.

Another object of the present invention is to provide a vacuum glass manufacturing method in which the suitability as a building material is improved by sufficiently increasing the period during which the vacuum state can be maintained.

It is still another object of the present invention to provide a method of manufacturing a vacuum glass having a peeler with a structure capable of improving the wind pressure resistance and obtaining aesthetics.

In order to accomplish the above object, a method of manufacturing a vacuum glass for a chassis according to an embodiment of the present invention comprises the steps of preparing a first glass panel and a second glass panel by cutting glass panels of the same size;

120) forming a pillar on the upper surface of the second glass panel;

130. A method for manufacturing a hot-melt adhesive sheet, comprising the steps of: (a) applying a hot-melt to an upper surface of a second glass panel to form a hot-melt applied layer;

140. A method for manufacturing a display device, comprising: 140) stacking a first glass panel on an upper surface of the second glass panel;

150. A method for fabricating a semiconductor device, comprising the steps of: (a) performing a chamber evacuation by drawing a first glass panel and a second glass panel into a vacuum chamber;

160) pressing the first glass panel and the second glass panel in a vacuum chamber in which chamber exhaustion is performed so that the open portion formed in the hot melt coating layer is sealed;

(170) a step of cooling the first glass panel and the second glass panel from the vacuum chamber and cooling the glass panel at a normal temperature; And

And forming a thiokole layer by applying a thiocall onto the hot-melt applied layer such that the hot-melt applied layer does not contact the outside air,

In step 120, a filler is formed by gravure printing or silkscreen printing using a resin material.

In order to achieve the above object, a method of manufacturing a vacuum glass for a chassis according to an embodiment of the present invention comprises the steps of preparing a first glass panel and a second glass panel by cutting glass panels of the same size;

A filler is printed on the upper surface of the second glass panel by a gravure printing method or a silkscreen printing method using a resin material, the filler is composed of a plurality of line segments having a predetermined height, 220) printing the filler so that at least some of the line segments are in contact with each other and at least a part of the contacts of the lines are open;

A step 230 of applying a hotmelt along an upper surface of the second glass panel to form a hotmelt application layer, wherein at least a portion of the hotmelt application layer is open;

240) stacking the first glass panel on the upper surface of the second glass panel;

250) performing chamber exhaust by drawing the stacked first and second glass panels into a vacuum chamber;

(260) a step of pressing the first glass panel and the second glass panel in a vacuum chamber in which chamber exhaustion is performed so that the open portion formed in the hot-melt coated layer is sealed;

270) cooling the pressurized first glass panel and the second glass panel from the vacuum chamber and cooling at room temperature; And

And a second step of forming a thiokole layer by applying a thiocall onto the hot-melt applied layer so that the hot-melt applied layer does not contact the outside air.

According to the present invention, there is an effect that the yield can be greatly improved by removing the intake process itself, which is often defective in the intake process through the exhaust pipe.

It is not subjected to complicated processes such as adsorption and movement of the upper plate glass during the process in the vacuum chamber. Since the vacuum state between the upper and lower plate glass is performed by simply pressing and pressing the chamber after exhausting the chamber, the manufacturing process can be simplified, The facility cost and production cost are lowered.

Meanwhile, since the sealing finishing material is not directly exposed to the outside air, the vacuum glass manufactured according to the present invention has a remarkable increase in the period during which the vacuum state can be maintained.

In addition, by producing a vacuum glass having a lattice-like filler structure, it is possible to improve the wind pressure resistance and obtain the aesthetics at the same time.

In addition, since the entire surface is carried out at room temperature, the metal or metal oxide coating on the surface of the glass is not peeled off by using the low-E glass.

1 is a flow chart illustrating a method of manufacturing a vacuum glass for a chassis according to an embodiment of the present invention in a time-
FIG. 2 is a reference view illustrating the vacuum glass manufacturing method for the chassis shown in FIG. 1,
FIG. 3 is a reference view for explaining a process of forming a vacuum space between glass panels by applying pressure after hot-melt application,
FIG. 4 is a reference view for explaining a sectional structure of a vacuum glass manufactured by the method according to FIG. 1,
Fig. 5 is a reference diagram exemplifying the structure of the filler,
Fig. 6 is a flow chart for explaining a method of manufacturing a vacuum glass for chassis according to this embodiment of the present invention in a time-series manner.

Hereinafter, a vacuum glass manufacturing method according to the present invention will be described in detail with reference to preferred embodiments and accompanying drawings. In order to clarify the present invention, contents which are not related to the configuration of the present invention will be omitted, and the same reference numerals are used for the same components.

On the other hand, when an element is referred to as being "comprising" another element in the description of the invention or in the claims, it is not interpreted as being limited to only that element, Elements may be further included.

Also, in the description of the invention or the claims, the components named as "means", "parts", "modules", and "blocks" refer to units that process at least one function or operation.

FIG. 1 is a flow chart illustrating a method of manufacturing a vacuum glass for a chassis according to an embodiment of the present invention. FIG. 2 is a reference view conceptually illustrating a method of manufacturing a vacuum glass for a chassis according to the present invention.

First, two glass panels 10 and 20 cut to the same size are prepared. At this time, preferably, the first glass panel 10 and the second glass panel 20 have the same physical properties and the same thickness. This is to prevent damage to the sealed state due to excessive expansion or contraction of one side after the production of the vacuum glass.

Meanwhile, the first glass panel 10 and the second glass panel 20 may be low-E glass.

Thereafter, a pillar 30 is formed on the upper surface of the second glass panel 20 (S120).

As shown in FIG. 2 (a), the filler is formed to protrude from the upper surface of the second glass panel with a predetermined thickness, and is preferably made of a resin material. At this time, it is preferable to use a resin material having somewhat elasticity as compared with a metal or other material, thereby preventing breakage in a working process or a construction process in a vacuum chamber.

Double glass for chassis usually has a thickness of 5mm and each glass has a gap of about 2mm. Therefore, the thickness of the filler 30 is preferably about 2 mm.

Conventionally, a process of inserting a TPS (Thermo Plastic Spacer) between glass plates or fixing a base bar has been performed. In the present invention, gravure printing or silkscreen printing is performed using a resin material. A large number of fillers 30 having a thickness of about 2 mm can be easily formed.

In particular, when printing is performed using a UV glass adhesive (Ultra Violet Glass Bond), the workability can be improved because it is hardened for about 5 to 10 seconds after printing.

When the ultraviolet rays are irradiated on the printing surface for a few seconds immediately after printing in the work space where the shading is performed, more excellent results can be obtained.

2 (a) illustrates a state in which a plurality of pillars 30 are formed on the upper surface of the second glass panel 20 as described above.

After the printed filler 30 is sufficiently cured, hot melt is applied along the upper surface of the second glass panel 20 to form a hot melt coating layer 40 (S130).

The hotmelt is prepared by mixing no additives such as water or a solvent and mixing the antioxidant and the filler into the components of the tackifier and the wax (lowering the viscosity upon melting) to make the base polymer a thermoplastic resin , And is coated and adhered to the surface of the adherend in a heated and melted state, and then solidified and exhibited an adhesive force when cooled.

At this time, the hot-melt coating layer 40 is preferably divided into two or more non-continuous sections as shown in Fig. 2 (b).

The hotmelt should be selected from tackifiers and waxes so that the viscosity can be kept constant.

On the other hand, the hot-melt coating layer 40 should be applied at least as thick as the height of the filler 30, preferably at a thickness of about 10 mm, and its width is maintained at about 3 mm to 5 mm. At this time, the distance between the sections that are not connected to each other is set to about 5 mm to 10 mm.

When the hot melt coating layer 40 is formed on the upper surface of the second glass panel 20, the first glass panel 10 is laminated on the hot melt coating layer 40 (S140). In this case, it is preferable that the processes after step S130 are performed in the same manufacturing line so that the first glass panel 10 can be laminated and drawn into the vacuum chamber before the hot melt coating layer 40 is cured.

2 illustrates a production line in the form of a belt conveyor in which a hot melt coating layer 40 is formed with a second glass panel 20 on which a filler is formed is placed on a belt and the hot melt coating layer is sufficiently cured The first glass panel 10 may be laminated (S140) and then introduced into the vacuum chamber.

Meanwhile, when the first glass panel 10 is laminated (S140), the first glass panel 10 must be slightly raised on the surface of the hot melt application layer 40, and the first glass panel 10 is not pressed on shall.

According to the example of Fig. 2, in this state, the conveyor conveys the stacked first glass panel 10 and the second glass panel 20 into the vacuum chamber. As the stacked first glass panel 10 and the second glass panel 20 are transferred to the inside of the vacuum chamber, chamber evacuation is performed so as to evacuate the inside of the vacuum chamber.

In the present invention, a process of heating a spacer or a spacer in the chamber to bind the glass panel to the glass panel is performed. However, in the present invention, even if the temperature inside the chamber is not heated, 10 and the second glass panel 20 can be uniformly maintained.

Then, as shown in FIG. 2 (d), the first glass panel 10 is pressed inside the vacuum chamber to connect sections of the hot melt coating layer 40 that are not connected to each other.

It is preferable that this series of processes is performed quickly before the hot-melt coating layer 40 is completely cured. However, by hardening the hot-melt coating layer 40 by raising the temperature inside the vacuum chamber to a temperature close to the melting point of the hot- Delay.

Thereafter, the pressurized first glass panel 10 and the second glass panel 20 are taken out of the vacuum chamber and cooled at room temperature (S170).

3 shows the process of filling the open section of the hot-melt application layer 40 formed on the upper surface of the second glass panel 20 by pressing the first glass panel 10.

3 (a) shows a state in which the first glass panel 10 is simply laminated on the upper surface of the hot melt coating layer 40, and FIG. 3 (b) shows a state in which the first glass panel 10 is pressed 3 (c) shows a section where the open section between the hot-melt application layers 40 is narrowed, and the open section between the hot-melt application layers 40 is completely closed in the chamber-evacuated vacuum chamber Showing the process of sealing.

The space between the first glass panel 10 and the second glass panel 20 is sealed in a vacuum state.

On the other hand, according to the related art, the vacuum glass easily breaks due to a difference in air pressure inside and outside the glass panel in the process of manufacturing the vacuum glass.

In the present invention, this problem is solved by making the filler 30 have a predetermined elasticity.

On the other hand, the vacuum glass produced according to the prior art is hardly kept in a vacuum state for a long time due to the temperature change of the outside air or the like. In the industry, the lifetime of a vacuum glass is generally estimated to be about 2 to 3 years.

Meanwhile, the vacuum glass used in the PDP cathode ray tube and the like will have a sufficient lifetime even if it is manufactured by the conventional technique in consideration of the lifetime of the TV. However, in the case of the vacuum glass for a chassis, It is difficult to maintain the vacuum permanently.

Particularly, in the case of finishing using a resin-based adhesive, the adhesive naturally hardens and cracks or breaks, and therefore it is difficult to maintain the vacuum state permanently.

In order to solve this problem, in the present invention, the first glass panel and the second glass panel stacked in the vacuum chamber after step S170 are taken out and the thiocall is applied to the outside of the hot-melt coating layer 40 to a thickness of 1 to 2 mm A thiourec layer 50 is formed (S180).

The hot-melt coating layer 40 is formed on the outer surface of the hot-melt coating layer 40 to prevent the hot-melt coating layer 40 from being directly exposed to the outside air, The layer 40 can be prevented from hardening and cracking.

On the other hand, if the Thiocall thickness is less than 1 mm, the hardening of the hot-melt coating layer 40 can not be sufficiently prevented. If the thickness of the Thiokor is not less than 2 mm, it is excessively projected outside the heavy glass panel, It may be a factor that deteriorates the workability.

Thus, the thickness of the thiocol layer 50 is preferably between about 1 mm and 2 mm, but can be applied as a uniform overall thickness.

Fig. 2 (e) illustrates a state in which the excitation layer 50 is formed in the vacuum chamber.

Meanwhile, after the thiocall layer 50 is coated and formed, the outer surface of the thiocall layer 50 is subjected to taping using an industrial tape or the like (S190).

Accordingly, the thiocall layer 50 can not be easily removed by external physical impact or pressure, and deterioration in workability due to the thiocall layer 50 can be prevented at the time of construction.

After the formation of the thiourecoll layer 50, silicon used for manufacturing a general glass panel may be further applied to the outside of the thiocall layer 50, and then taping may be performed thereon.

The application of silicon can improve the merchantability.

FIG. 4 is a reference view for explaining a sectional structure of a vacuum glass manufactured through the above process.

4, the hot melt application layer is formed to have a predetermined thickness inwardly along the side edges of the first glass panel 10 and the second glass panel 20. The hot melt application layer 40 Is applied so as not to protrude out of the first glass panel 10 and the second glass panel 20. On the other hand, the top coat layer 50 covers the hot-melt application layer 40 so that the hot-melt application layer 40 is completely covered to cover the surface of the hot-melt application layer 40 so as not to touch the outside air. Thereafter, it can be confirmed that the taping 60 is located outside the thiocall layer 50.

Hereinafter, this embodiment of the vacuum glass manufacturing method for a chassis will be described with reference to FIGS. 5 and 6. FIG.

FIG. 5 is a reference view for explaining the structure of a filler, and FIG. 6 is a flowchart for explaining a time-lapse method for manufacturing a vacuum glass for a chassis according to this embodiment of the present invention.

This embodiment is different from the embodiment except for the process of printing the filler 30 (S220).

In step S220, the filler 30 is printed by a silk screen or a gravure printing method. At this time, the structure of the filler 30 may preferably have a lattice structure as shown in FIG.

The lattice-like filler 30 shown in Figs. 5 (a) and 5 (b) has a shape in which a plurality of line segments are formed in a shape that is grated in the transverse direction and the longitudinal direction. However, It can be seen that a large number of the parts are open.

By having such a lattice-like structure, the pressure exerted from the outside of the first glass panel 10 or the second glass panel 20 can be effectively dispersed through the filler 30.

In addition, it can have an aesthetic effect by having a grid shape when viewed from the outside. Particularly, since the grid pattern is a general pattern in the glass chassis, users do not feel a sense of heterogeneity.

On the other hand, printing of the vertex portions of the gratings in an open form is also for easily evacuating the space between the first glass panel 10 and the second glass panel 20 by evacuating the chamber in the vacuum chamber.

The structure of the pillar 30 as shown in Fig. 5 can improve the wind pressure resistance and attain esthetics.

While the present invention has been described with reference to the accompanying drawings and embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Accordingly, the scope of the present invention should be determined only by the technical idea of the appended claims, and is not limited to the above embodiments.

In particular, in the above-mentioned embodiment, the thiokol is applied to prevent hardening of the hot-melt coating layer 40 as a material having a viscosity that does not harden by absorbing moisture, And not in the scope of technical thought of.

Meanwhile, in the above description, the process of forming a vacuum glass using two glass panels has been described. However, it is obvious that the present invention can be applied to a method of forming a vacuum glass by stacking glass panels or more.

The present invention has been developed as a method for manufacturing a vacuum glass for a chassis used as a building material, but it can also be applied to the production of a vacuum glass used in various technical fields such as a vacuum glass panel for a PDP.

10: first glass panel
20: second glass panel
30: filler
40: hot melt coating layer
50: Thiokol
60: taping

Claims (6)

210) preparing the first glass panel and the second glass panel by cutting the glass panel to the same size;
A filler is printed on the upper surface of the second glass panel by a gravure printing method or a silkscreen printing method using a resin material, the filler is composed of a plurality of line segments having a predetermined height, 220) printing the filler so that at least some of the line segments are in contact with each other and at least a part of the contacts of the lines are open;
A step 230 of applying a hotmelt along an upper surface of the second glass panel to form a hotmelt application layer, wherein at least a portion of the hotmelt application layer is open;
240) stacking the first glass panel on the upper surface of the second glass panel;
250) performing chamber exhaust by drawing the stacked first and second glass panels into a vacuum chamber;
(260) a step of pressing the first glass panel and the second glass panel in a vacuum chamber in which chamber exhaustion is performed so that the open portion formed in the hot-melt coated layer is sealed;
270) cooling the pressurized first glass panel and the second glass panel from the vacuum chamber and cooling at room temperature;
And forming a thiocall layer by applying a Thiocall onto the hot-melt coated layer so that the hot-melt coated layer does not contact outside air. 110) preparing a first glass panel and a second glass panel by cutting the glass panel to the same size;
120) forming a pillar on the upper surface of the second glass panel;
130. A method for manufacturing a hot-melt adhesive sheet, comprising the steps of: (a) applying a hot-melt to an upper surface of a second glass panel to form a hot-melt applied layer;
140. A method for manufacturing a display device, comprising: 140) stacking a first glass panel on an upper surface of the second glass panel;
150. A method for fabricating a semiconductor device, comprising the steps of: (a) performing a chamber evacuation by drawing a first glass panel and a second glass panel into a vacuum chamber;
160) pressing the first glass panel and the second glass panel in a vacuum chamber in which chamber exhaustion is performed so that the open portion formed in the hot melt coating layer is sealed;
(170) a step of cooling the first glass panel and the second glass panel from the vacuum chamber and cooling the glass panel at a normal temperature;
And forming a thiokole layer by applying a thiocall onto the hot-melt applied layer such that the hot-melt applied layer does not contact the outside air,
Wherein the filler is formed by gravure printing or silkscreen printing using the resin material in step 120. The vacuum glass manufacturing method of claim 1, 3. The method of claim 2,
Further comprising a step 190 of taping the side surfaces of the stacked first glass panel and the second glass panel so as not to be exposed to the outside after step 180. The method for manufacturing a vacuum glass for a chassis according to claim 1, . 3. The method of claim 2,
Wherein the gravure printing or silkscreen printing is performed using a UV glass adhesive in step 120, and ultraviolet rays are irradiated for 5 to 10 seconds immediately after printing. 3. The method of claim 2,
Wherein the chamber evacuation is performed in a state where the inside temperature of the vacuum chamber is maintained at or above the hot melt temperature in operation 150. 3. The method of claim 2,
Wherein in step 180, the thiourec layer is applied so as to have a constant thickness between 1 mm and 2 mm.

Images