TWI625316B - Manufacturing method of strengthened vacuum glass - Google Patents

Abstract

The invention relates to a method for manufacturing a strengthened vacuum glass. The strengthened vacuum glass includes two glass substrates, a vacuum area is provided between the glass substrates, and an edge banding material is coated on the inner side surface adjacent to the peripheral edge. When the vacuum glass is subjected to the edge-sealing process, an insulating material is placed on the outer side of the glass substrates, and the glass substrate and the heat-insulating material are heated together, so that the edge-sealing material is melted and hermetically sealed, so that The glass substrates are connected as a whole, and then a vacuum pumping process is performed on the vacuum area to form the strengthened vacuum glass. In this way, the heat insulation material can isolate the external temperature, making the outer side of the glass substrate difficult to be affected by high temperature. Strengthen stress decay.

Description

Manufacturing method of strengthened vacuum glass

The invention relates to a manufacturing method of strengthened vacuum glass, in particular to a manufacturing process in which a heat insulating material is placed on both sides of the strengthened vacuum glass before the edge-sealing process is performed, so as to reduce the strengthening stress decay.

According to the current, most of the heat-insulating windows use structures such as "insulating glass" or "vacuum glass". Among them, "insulating glass" forms an air layer between two glass substrates. Due to the spread of heat energy in the air, Glass is more difficult. Therefore, the insulating effect of "Hollow glass" will be better than that of ordinary glass or "laminated glass". However, the gas in "hollow glass" still has thermal energy conduction and convection, which makes it isolated The thermal capacity is still not ideal; in addition, "vacuum glass" is a vacuum layer formed between two glass substrates. Since the conduction and convection of thermal energy cannot be propagated in a vacuum, it can more effectively reduce the heat energy through the "vacuum glass" Compared with ordinary glass, "laminated glass" and "insulating glass", "vacuum glass" can more effectively isolate the transfer of heat energy and has good thermal insulation properties. Therefore, no matter in summer or winter, by The help of "vacuum glass" can make indoor temperature less susceptible to outdoor temperature. For the construction of countries around the world, "Zero-energy building" Under the circumstances of the exhibition, "vacuum glass" has become the preferred energy-saving building material.

In addition to the thermal insulation effect, compared to "insulating glass", It can also effectively isolate the transmission of sound. Therefore, the many excellent characteristics of "vacuum glass" have also caused the quality and related applications of "vacuum glass" to become an issue of great importance to all countries. Generally speaking, when "vacuum glass" is used for high-rise buildings' exterior windows or curtain walls (curtain wall), high wind pressure resistance is required. Because the surface of reinforced glass will have strong compressive stress, its strength is about that of ordinary glass. 3 ~ 5 times. Therefore, "Vacuum Glass" usually uses tempered glass as a glass substrate to increase the overall strength of "Vacuum Glass", making "Vacuum Glass" suitable for more buildings.

However, in the process of "vacuum glass", in order to form a vacuum layer between two glass substrates, an "edge banding process" is usually performed, so that the air around the glass substrates can be air-except for the exhaust holes. Close state to carry out the subsequent "vacuum extraction process", but the inventor found that in the "edge sealing process", because these glass substrates (that is, strengthened glass) will be sent to a heating device, High temperature baking. At this time, the compressive stress on the surface of the strengthened glass will decline due to the high temperature. After the inventor's test, the compressive stress on the surface of the strengthened glass after the decline is about twice that of ordinary glass, which is almost equivalent to thermal strengthening The degree of glass (also called heat-treated reinforced glass) means that after the "edge banding process", the original overall strength of the "vacuum glass" will be reduced, and the original intention of the manufacturer to use strengthened glass will be lost.

In summary, it can be known that the existing "reinforced vacuum glass (that is, using strengthened glass as a glass substrate)" in the production process will be affected by high temperature and cause the compressive stress of the strengthened glass surface to decline. Therefore, how to effectively solve the aforementioned problems, In order to retain the original strength of the strengthened glass, this is an important subject to be explored by the present invention.

In view of the fact that the existing process of "strengthening vacuum glass" is still not ideal, the inventor finally designed this model after years of experiments and improvements with years of practical experience. The invention provides a method for manufacturing a strengthened vacuum glass, which can solve the aforementioned problems and provide a better product for users.

An object of the present invention is to provide a method for manufacturing a strengthened vacuum glass, which is applied to a strengthened vacuum glass, wherein the strengthened vacuum glass includes two glass substrates and an edge material, and at least one glass substrate is reinforced glass, In addition, the corresponding inner side surfaces of the glass substrates are spaced apart from each other to form a vacuum region, and at least one air extraction portion is formed on one side edge of the glass substrates, and each of the air extraction portions is in communication with the vacuum region. After the edge banding material is coated on the inner side surfaces of the glass substrates adjacent to the periphery, at least one heat-insulating material can be placed on the outer side of the glass substrate corresponding to the strengthened glass. Alas, through a heating device, The glass substrate, the edge banding material and the heat-insulating material are heated to melt the edge banding material, and seal the periphery of the glass substrate, so that only the air extraction portion communicates with the vacuum region, After that, a vacuum pumping operation is performed on the vacuum region, so that the air in the vacuum region is extracted through the pumping portion, and then the pumping portion is hermetically sealed to form In this strengthened vacuum glass, since the outer surfaces of the glass substrates have been previously covered with corresponding thermal insulation materials, the external high temperature is unlikely to affect the glass substrates, so it can significantly reduce the strengthening stress decay of the glass substrates, which is effective Maintain the strength of the glass substrate.

In order that the review committee can further understand and understand the purpose, technical features and effects of the present invention, the embodiments are described in detail with the drawings, as follows:

[Learning]

no

〔this invention〕

1‧‧‧Tempered vacuum glass

11‧‧‧ on glass substrate

12‧‧‧ lower glass substrate

121‧‧‧ support column

13‧‧‧Edge banding material

15‧‧‧Exhaust

150‧‧‧exhaust channel

201 ~ 211‧‧‧ steps

S‧‧‧Vacuum area

G1, G2‧‧‧ Insulation

L1, L2‧‧‧ fixture

H‧‧‧Heating device

Figure 1 is a sectional structural view of the strengthened vacuum glass of the present invention; Figure 2 is a process of the present invention; and FIG. 3 is a schematic diagram of a strengthened vacuum glass and a fixture according to the present invention.

The present invention relates to a method for manufacturing a strengthened vacuum glass. Please refer to FIGS. 1 and 2. In one embodiment, the structure of the final product of the strengthened vacuum glass 1 can include at least two glass substrates and an edge material 13. For the convenience of description, in the following embodiments, these glass substrates are respectively taken as "upper glass substrate 11" and "lower glass substrate 12", wherein the upper glass substrate 11 can be Low-E tempered glass, the lower glass The substrate 12 can be flat reinforced glass, the edge-sealing material 13 can be made of glass glue, and the inner side surfaces of the upper glass substrate 11 and the lower glass substrate 12 are spaced apart from each other to form a vacuum region S. In addition, at least one air extraction portion 15 is formed on one side edge of the upper glass substrate 11 and the lower glass substrate 12. The air extraction portion 15 is provided with an air extraction channel 150 so as to communicate with the vacuum region S. In other embodiments of the invention, the glass substrates 11 and 12 can be tempered glass in other forms, or at least one of the glass substrates 11 and 12 can be tempered glass.

Please refer to FIG. 1 again, the edge banding material 13 is coated on the inner side surfaces of the upper glass substrate 11 and the lower glass substrate 12 and is only adjacent to the surrounding positions of the upper glass substrate 11 and the lower glass substrate 12, At the same time, the edge-sealing material 13 will not cover the air extraction portion 15 and the air extraction channel 150, so that the original air in the vacuum area S can be extracted through the air extraction channel 150. In this embodiment, the At least one supporting post 121 is provided between the upper glass substrate 11 and the lower glass substrate 12 to maintain a distance between the upper glass substrate 11 and the lower glass substrate 12 while avoiding the upper glass substrate 11 or the lower glass substrate. 12 Because the area is too large, it can cause bending and other issues. However, in other embodiments of the present invention, the industry can not provide the support post 121 according to the product requirements, which is a good idea.

Please refer to FIG. 1 and FIG. 2 again. In this embodiment, the manufacturing process of the strengthened vacuum glass 1 can include the following procedures: (201) “Placing”: a worker can place the upper glass substrate 11 and the lower glass substrate 12 It is placed on a conveyor belt to convey the upper glass substrate 11 and the lower glass substrate 12; (202) "washing sheet": the conveyor belt transports the upper glass substrate 11 and the lower glass substrate 12 to a cleaning machine to The upper glass substrate 11 and the lower glass substrate 12 are cleaned; (203) "clothing support pillar 121": the lower glass substrate 12 is transported to a cloth counting machine to be placed on one side of the lower glass substrate 12 ( That is, the inner side) cloth value support column 121; (204) "sintered support column 121": the lower glass substrate 12 is transported to a sintering machine so that the support columns 121 can be fixed to the lower glass by sintering One side (ie, inner side) of the substrate 12; (205) "Coating edge banding material 13": The lower glass substrate 12 and / or the upper glass substrate 11 are transported to a gluing machine so that The glass substrate 12 and / or the upper glass substrate 11 is coated with an edge-sealing material 13 on a side surface (ie, an inner side surface) adjacent to the peripheral edge. The height of the edge-sealing material 13 can be greater than or at least equal to the height of the support pillars 121; (206) "Low temperature baking": the lower glass substrate 12 and / or the upper glass substrate 11 are transported to a baking A machine to warm the lower glass substrate 12 and / or the upper glass substrate 11 so that the edge sealing material 13 can be slightly melted and fixed to the corresponding lower glass substrate 12 and / or the upper glass substrate 11; 207) "Finished sheet": The lower glass substrate 12 and the upper glass substrate 11 are laminated and integrated, and one side thereof can form the inner side of the strengthened vacuum glass 1. Among them, since the edge sealing material 13 itself can be compressed, Therefore, when the height of the edge banding material 13 is greater than the height of the support pillar 121, It will still be pressed by the glass substrates 11 and 12 and maintained at the same height as the support pillar 121.

Please refer to FIG. 1 to FIG. 3. After the foregoing steps, the upper glass substrate 11 and the lower glass substrate 12 will be formed as shown in FIG. 1. In addition, the manufacturing process also includes the following procedures:

(208) "Upper clamp": Hold the clamps L1, L2 to clamp the two edges of the lower glass substrate 12 corresponding to the upper glass substrate 11, as shown in Fig. 3, because at this time, the lower glass The substrate 12 and the upper glass substrate 11 have not been bonded together. Therefore, the clamping of the clamps L1 and L2 can prevent the lower glass substrate 12 and the upper glass substrate 11 from being separated from each other due to vibration or other factors;

(209) "Edge banding": placing an insulation material G1, G2 on the outer side of the upper glass substrate 11 and the lower glass substrate 12, respectively, wherein each of the insulation materials G1, G2 can cover the glass substrates 11 Most of the area of ， 12, except for the positions of the clamps L1 and L2. After that, the glass substrates 11 and 12 and the heat insulation materials G1 and G2 are transported to a heating device H (such as an autoclave). The warming device H will heat the upper glass substrate 11 and the lower glass substrate 12 to melt the edge sealing material 13. At this time, the edge sealing material 13 will be bonded to the upper glass substrate 11 and the lower glass substrate 12. And seal the peripheries of the upper glass substrate 11 and the lower glass substrate 12 to form an air-tight state, so that only the suction portion 15 communicates with the vacuum region S; however, it is particularly mentioned here, In other embodiments of the present invention, the area of the heat-insulating materials G1 and G2 can be greater than or equal to the glass substrates 11 and 12 and is not limited to the foregoing implementation. Generally, the area of the heat-insulating materials G1 and G2 is smaller than these. The glass substrates 11 and 12 are described together.

(210) "Lower clamp": Remove the clamps L1, L2 of the upper glass substrate 11 and the lower glass substrate 12, At this time, since the glass substrates 11 and 12 are integrated into one through the edge sealing material 13, they will not be easily separated;

(211) "Vacuum evacuation": The upper glass substrate 11 and the lower glass substrate 12 are transported to an air extractor to perform an air exhaust operation on the vacuum area S, so that the air in the vacuum area S passes through the air exhaust. The air part 15 is extracted, and then the air part 15 is sealed so that the air part 15 is in an airtight state to form the strengthened vacuum glass 1.

To sum up, please refer to Figures 1 to 3. In the “Edge Sealing” procedure, the outer surfaces of the glass substrates 11 and 12 will be covered with a heat insulation material G1 and G2 respectively. Therefore, The high temperature generated by the heating device H will be effectively isolated from the heat insulation materials G1 and G2, so that all or most of the areas of the glass substrates 11 and 12 will not cause stress decay due to the high temperature, so that the strengthening The vacuum glass 1 can maintain its original degree of strengthening. However, if only one of the glass substrates 11 and 12 is strengthened glass, in the "edge sealing" procedure, only one heat insulating material G1 can be used. G2 is placed on the outer surfaces of the glass substrates 11 and 12 corresponding to the strengthened glass. In addition, in this embodiment, the heat-insulating materials G1 and G2 can be heat-insulating materials of mica board, glass fiber, or ceramic fiber board, but it is not limited to this, as long as it can have a considerable heat-insulating effect, The heat insulation materials G1 and G2 referred to in the present invention.

For the special statement here, please refer to Figures 1 to 3, although the aforementioned processes include procedures such as (201) to (211), but in other embodiments of the present invention, the industry can Addition and deletion of various procedures, for example: if the reinforced vacuum glass 1 is not provided with a support column 121, steps (203) to (204) can be reduced; and the industry can also reduce steps (208) and (210), eliminating assembly And the time for removing the clamps L1 and L2; as long as the "edge banding" process can be performed in the process of the present invention, a corresponding thermal insulation material is added to the outer surfaces of the glass substrates 11, 12 G1, G2, in order to reduce the contact stress degradation of the strengthened glass, that is, the strengthened vacuum glass manufacturing process to be protected by the present invention.

According to the above, it is only the preferred embodiment of the present invention, but the scope of the rights claimed by the present invention is not limited to this. According to the technical content disclosed by those skilled in the art, Equivalent changes that can be easily considered should all belong to the protection scope of the present invention.

Claims (5)

A method for manufacturing a strengthened vacuum glass is applied to a strengthened vacuum glass. The strengthened vacuum glass includes two glass substrates and an edge material, and at least one of the glass substrates is a strengthened glass. The glass substrates correspond to each other. The side surfaces are spaced apart from each other to form a vacuum area. At least one air extraction portion is formed on one side edge of the strengthened vacuum glass, and each of the air extraction portions is in communication with the vacuum area, and the edge sealing material is coated at least on the After the glass substrate is located near the inner side of the perimeter, and it is not yet integrated with the glass substrates, the process can perform the following steps: clamping a fixture to the outer sides of the glass substrates; A heat-insulating material is placed on the outer side of the glass substrate; the glass substrate, the edge-sealing material and the heat-insulating materials are heated through a heating device to melt the edge-sealing material and seal the The peripheral edge of the glass substrate only communicates the extraction portion with the vacuum region; and removes the clamp and performs a vacuum extraction procedure on the vacuum region to make the vacuum After air-domain are extracted via the extraction portion, the extraction section hermetically sealed together to form the reinforced glass vacuum. The method for manufacturing a strengthened vacuum glass according to claim 1, wherein each of the heat insulating materials is a heat insulating material of a mica board, a glass fiber, or a ceramic fiber board. The method for manufacturing a strengthened vacuum glass according to claim 2, wherein, in a state where the glass substrates have not been coated with the edge-sealing material, the manufacturing process further includes the following steps: at least one supporting pillar is planted in one of the glasses An inner side surface of the substrate; and a sintering process is performed on the glass substrate and each of the supporting pillars, so that one end of each of the supporting pillars is fixed on the glass substrate. The method for manufacturing a strengthened vacuum glass according to claim 3, wherein, in a state where the support pillars have been fixed on the inner surface of the glass substrate, the manufacturing process further includes the following steps: Apply the edge-sealing material at a position where the height of the edge-sealing material is greater than or at least equal to the height of the support columns; and perform a low-temperature baking process on the glass substrate and the edge-sealing material so that the edge-sealing material can adhere to On the glass substrate. The method for manufacturing a strengthened vacuum glass according to claim 4, wherein, in a state where the edge-sealing material is adhered to the glass substrate, the manufacturing process further includes the following steps: placing another glass substrate on each of the support columns And the edge sealing material, and the inner side surface of the other glass substrate will abut against the other end of each of the support columns, so that the vacuum area is formed between the other glass substrate and the glass substrate; The outer surfaces of the glass substrates are held, and each of the heat insulating materials can be placed on the outer surfaces of the corresponding glass substrates.