Preparation of glass with air cavity and control process of its air cavity morphology
By using the glass surface with concave and convex patterns in glass preparation and performing thermal processing control, the problem of complex and poor results in the preparation of the existing glass air cavity layer is solved, and the effect of improving sound insulation and thermal insulation performance is achieved.
Patent Information
- Application Number
- CN202411976153.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-04
AI Technical Summary
The existing double-layer or multi-layer glass air cavity layers are complex in preparation and have poor results.
By selecting two pieces of glass, where at least one piece of glass has a concave and convex pattern or pattern surface, and placing the concave and convex pattern or pattern surface between the two pieces of glass, the two pieces of glass are heated and fused using a thermal processing device to control the temperature and time to form a specific bubble effect.
A simple process is realized, and by controlling material selection, temperature and time, a specific bubble effect can be achieved, and the sound insulation and thermal insulation performance of the glass can be improved.
Smart Images
Figure CN119750896A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of glass processing, and in particular to a process for preparing a glass layer with an air cavity and controlling the shape of the air cavity. Background Art
[0002] With the development of the construction industry, the use of buildings is getting higher and higher; for example, the sound insulation, thermal insulation and other effects of buildings. Double-layer or multi-layer glass is a glass product that forms an air cavity layer between the glass layers by evenly separating two or more pieces of glass with effective support and sealing the perimeter. It has good sound insulation, thermal insulation and heat insulation effects and is widely used in the construction industry. However, the preparation method of the air cavity layer of the existing double-layer or multi-layer glass is relatively complicated and the effect is not good. Summary of the invention
[0003] The purpose of the present invention is to provide a process for preparing a glass layer with an air cavity and controlling the shape of its air cavity, so as to solve the problems mentioned in the background technology. To achieve the above purpose, the present invention provides the following technical solutions: a process for preparing a glass layer with an air cavity and controlling the shape of its air cavity, specifically including the following contents:
[0004] (1) Select two pieces of glass and place them opposite to each other, at least one of the two pieces of glass has a concave-convex pattern or design on one surface, and place the surface with the concave-convex pattern or design between the two pieces of glass;
[0005] (2) using a thermal processing device to heat the two pieces of glass and fuse the two pieces of glass together;
[0006] (3) Cool down to 500-650°C, keep warm for 10-180 minutes, then gradually cool down to 400-500°C, keep warm for 10-180 minutes;
[0007] (4) Cool down naturally to near room temperature, take out, and test the stress value with a stress meter.
[0008] Preferably, the expansion coefficients of the two sheets of glass (1) are the same or similar.
[0009] Preferably, in (1), a filler can be placed between the two sheets of glass, and the filler is glass color powder, glass particles, glass sheets, high temperature resistant sheets or wires with metallic luster having the same or similar expansion coefficients.
[0010] Preferably, the heat processing equipment in (2) is an intermittent hot melt oven or a continuous heating furnace.
[0011] The technical effects and advantages of the present invention: The process provided by the present invention is simple, and a specific bubble effect can be achieved by controlling material selection, temperature, time, etc. as needed. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure when the bubble is a flat and long structure.
[0013] Figure 2 This is a schematic diagram of the structure of the glass with air cavity in Example 2. DETAILED DESCRIPTION
[0014] In order to make the technical means for realizing the present invention, the creative features, the objectives and effects to be achieved easy to understand, the present invention is further explained below in conjunction with specific diagrams. In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection or a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two components.
[0015] Example 1
[0016] A process for preparing a glass layer with an air cavity and controlling the air cavity morphology thereof, the specific steps are as follows:
[0017] 1. Choose the Jinbisha embossed glass and cut at least two pieces of embossed glass of the same size according to the required size;
[0018] 2. Wash and dry the Jinbisha embossed glass of the required size;
[0019] 3. Place one of the cleaned Jinbisha embossed glass with the pattern facing upward on the pre-prepared hot melting furnace processing platform, and then place the other Jinbisha embossed glass with the pattern facing downward on the previously placed Jinbisha embossed glass, so that the patterns of the two are in the middle layer of the two glasses and aligned with the four edges around them, then cover the heating furnace cover and start heating the glass;
[0020] 4. Heating glass temperature curve, the first stage is room temperature - 350 ℃, the duration is 1-3 hours, the second stage is 350 ℃ - 960 ℃, that is, the temperature above the softening point of the glass, the duration is 1.5-4 hours; the third stage is naturally cooled to 550 ℃;
[0021] 5. Keep the temperature at 550℃ for 1-3 hours, then slowly cool to 450℃ in 3 hours, and then keep at 450℃ for 1-3 hours, then naturally cool to near room temperature and then take out of the furnace;
[0022] After cleaning and drying, the stress value can be tested with a stress meter and can be shipped if it is within the regulatory range.
[0023] Example 2
[0024] A process for preparing a glass layer with an air cavity and controlling the air cavity morphology thereof, the specific steps are as follows:
[0025] 1. Choose the silver pattern of soda-lime patterned glass and cut at least two pieces of embossed glass of the same size according to the required size;
[0026] 2. Clean and dry the silver-colored embossed glass of the required size;
[0027] 3. Place one of the washed and dried silver-colored embossed glass with the pattern facing upward on the pre-prepared hot-melt furnace processing platform, and sprinkle golden mica flakes of the required particle size and density on its uneven surface as required. Then place another piece of silver-colored embossed glass with the pattern facing downward on the previously placed silver-colored embossed glass, so that the patterns of the two pieces are in the middle layer of the two pieces of silver-colored embossed glass and are aligned with the four edges around them. Then cover the heating furnace cover and start heating the glass;
[0028] 4. Heating curve of heated glass: the first stage is room temperature - 350℃, lasting 1-3 hours; the second stage is 350℃-960℃, which is the temperature above the softening point of glass, lasting 1.5-4 hours; the third stage is naturally cooled to 550℃;
[0029] 5. Keep the temperature at 550℃ for 1-3 hours, then slowly cool to 450℃ in 3 hours, and then keep at 450℃ for 1-3 hours, then naturally cool to near room temperature and it can be taken out of the furnace.
[0030] 6. After cleaning and drying, use a stress meter to test the stress value. If it is within the compliance range, the product can be shipped. Figure 2 shown.
[0031] Usually, the same glass configuration, the same heating process, and the same heating curve will produce basically the same bubble effect. The bubble structure will also be different with different heating temperatures of the hot melt oven. When the temperature is low, the bubbles are larger and more flat, such as Figure 1 As shown; the higher the temperature, the smaller the bubble shape is. Figure 2 As shown, the higher the temperature, the greater the degree of glass melting. At the same time, due to the high temperature, the air pressure in the furnace increases. Under the action of air pressure, the bubbles inside the glass will become smaller and rounder.
[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A process for preparing a glass layer with an air cavity and controlling the air cavity morphology thereof, characterized in that: Specifically include the following: (1) Select two pieces of glass and place them opposite to each other, at least one of the two pieces of glass has a concave-convex pattern or design on one surface, and place the surface with the concave-convex pattern or design between the two pieces of glass; (2) using a thermal processing device to heat the two pieces of glass and fuse the two pieces of glass together; (3) Cool down to 500-650°C, keep warm for 10-180 minutes, then gradually cool down to 400-500°C, keep warm for 10-180 minutes; (4) Cool down naturally to near room temperature, take out, and test the stress value with a stress meter.
2. The process for preparing a layer glass with air cavity and controlling the air cavity morphology thereof according to claim 1, characterized in that: (1) The expansion coefficients of the two sheets of glass are the same or similar.
3. The process for preparing a layer glass with air cavity and controlling the air cavity morphology thereof according to claim 1, characterized in that: In the above (1), a filler can be placed between the two pieces of glass. The filler is glass color powder, glass particles, glass sheets, high temperature resistant sheets or wires with metallic luster, which have the same or similar expansion coefficients.
4. The process for preparing a layer glass with air cavity and controlling the air cavity morphology thereof according to claim 1, characterized in that: The heat processing equipment in (2) is an intermittent hot melt oven or a continuous heating furnace.