CN111162135A - Manufacturing process of glass with frame and double-glass product - Google Patents
Manufacturing process of glass with frame and double-glass product Download PDFInfo
- Publication number
- CN111162135A CN111162135A CN201911335284.9A CN201911335284A CN111162135A CN 111162135 A CN111162135 A CN 111162135A CN 201911335284 A CN201911335284 A CN 201911335284A CN 111162135 A CN111162135 A CN 111162135A
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- glass
- double
- welding
- ultra
- manufacturing process
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- 239000011521 glass Substances 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000003466 welding Methods 0.000 claims abstract description 38
- 239000005341 toughened glass Substances 0.000 claims abstract description 24
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 19
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 19
- 238000007731 hot pressing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000002313 adhesive film Substances 0.000 claims abstract description 16
- 238000005816 glass manufacturing process Methods 0.000 claims abstract description 13
- 238000010030 laminating Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 238000007688 edging Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/186—Particular post-treatment for the devices, e.g. annealing, impurity gettering, short-circuit elimination, recrystallisation
- H01L31/1864—Annealing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a glass manufacturing process of a double-glass product with a frame, which comprises the following steps of S1: preparing a battery piece, a welding strip, ultra-white toughened glass and an EVA (ethylene vinyl acetate) adhesive film; s2, welding the battery piece: welding the negative electrode of the single cell, aligning and lapping a rear welding strip with the back side of the single-welded cell upwards on the front back electrode, then sequentially arranging the welding strips on the series welding template, and then welding the welding strips to form a cell panel; s3, stacking: placing the ultra-white toughened glass, the EVA adhesive film, the cell panel, the EVA adhesive film and the ultra-white toughened glass from bottom to top in sequence, and simultaneously placing the frame at the edges of the two groups of the ultra-white toughened glass to form a double-glass blank; s4, sealing: pumping out air in the double-glass blank, and carrying out vacuum sealing treatment; s5, hot pressing: and putting the fixed double-glass blank into a laminating machine for hot pressing. The method is simple and convenient to operate, the product percent of pass is improved, and the prepared product has good impact resistance.
Description
Technical Field
The invention relates to the technical field of glass manufacturing processes, in particular to a glass manufacturing process for a double-glass product with a frame.
Background
The double-glass assembly is a finished assembly in the photovoltaic industry, the shape of the double-glass assembly is similar to that of laminated double-layer glass, a battery piece is adhered and sandwiched between two layers of glass through an encapsulation adhesive film, the double-glass photovoltaic assembly is well applied in the industry, and related reports can be found in early 2009.
The dual-glass assembly needs to be subjected to the processing of procedures such as lamination, vacuum and hot pressing in the processing process, wherein the blank of the dual-glass assembly is generally directly put into a laminating machine for heating and pressure boosting in the prior art, so that bubbles are generated in a product easily, and the product is unqualified.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a glass manufacturing process for a double-glass product with a frame.
In order to achieve the purpose, the invention provides the following technical scheme: a glass manufacturing process for a double-glass product with a frame comprises the following steps:
s1, preparing materials: preparing a battery piece, a welding strip, ultra-white toughened glass and an EVA (ethylene vinyl acetate) adhesive film;
s2, welding the battery piece: welding the negative electrode of the single cell, aligning and lapping a rear welding strip with the back side of the single-welded cell upwards on the front back electrode, then sequentially arranging the welding strips on the series welding template, and then welding the welding strips to form a cell panel;
s3, stacking: placing the ultra-white toughened glass, the EVA adhesive film, the cell panel, the EVA adhesive film and the ultra-white toughened glass from bottom to top in sequence, and simultaneously placing the frame at the edges of the two groups of the ultra-white toughened glass to form a double-glass blank;
s4, sealing: pumping out air in the double-glass blank, and carrying out vacuum sealing treatment;
s5, hot pressing: putting the fixed double-glass blank into a laminating machine for hot pressing, and preheating before hot pressing;
s6, cooling: after heat preservation and pressure maintaining are carried out for 50 minutes, cooling and pressure reduction treatment are started;
s7, cleaning: and taking out the hot-pressed double-glass, cleaning the surface, and removing burrs.
Preferably, in the step S3, before lamination, the surface of the ultra-white tempered glass is wiped with alcohol by dipping the non-woven fabric, and lamination is performed after the alcohol is volatilized.
Preferably, in step S4, during the sealing process, an airflow channel is formed by wrapping the edge of the dual-glass blank with cotton cloth, and during the sealing and vacuuming process, the suction nozzle of the vacuum assembly is inserted into the airflow channel.
Preferably, when preparing the ultra-white toughened glass, the glass is cut into the required size according to the actual requirement, then the cut glass is edged, and then the toughened glass is processed.
Preferably, the inside of the laminator is preheated to 15 to 20 ℃ in step S5, the initial hot pressing temperature is adjusted to 50 ℃ after the dual glass blank is placed in the laminator, the internal temperature of the laminator reaches the preset 50 ℃, heating and pressurizing are performed until the temperature reaches 125 to 130 ℃ and the pressure value reaches 1.31.4MPa, and heat and pressure preservation is performed for 50 minutes.
Preferably, in step S6, in the cooling and depressurizing process, the temperature and pressure are first lowered and maintained, so that the internal temperature of the laminator is lowered to 40 ℃, then the depressurizing process is started to make the pressure the same as the atmospheric pressure, and then the cooling process is performed to make the temperature reach 10-15 ℃.
Preferably, after the series welding of the battery pieces is finished, the EL detector is used for detecting the welded battery pieces and checking whether the phenomena of insufficient welding and grid breaking exist.
The invention has the technical effects and advantages that:
1. according to the invention, when the dual-glass blank is subjected to hot pressing, preheating treatment is firstly carried out, so that the initial temperature in the laminator reaches 15-20 ℃, and when the dual-glass blank is subsequently put into the laminator for heating and boosting treatment, the temperature of the dual-glass blank cannot be suddenly increased, so that the EVA adhesive film in the dual-glass blank generates bubbles after being hot-melted, the cured dual-glass generates bubbles, and the product quality of the dual-glass is ensured.
2. In the cooling process, the temperature is firstly reduced, the pressure value is reduced to the value same as the atmospheric pressure after the temperature is reduced to 40 ℃, and then the temperature is continuously reduced to 10-15 ℃, so that the double-glass is not easy to crack due to the change of the temperature and the atmospheric pressure.
3. The manufacturing process is simple and convenient to operate, the product percent of pass is improved, and the double-glass product prepared by the invention has good impact resistance and is durable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A glass manufacturing process for a double-glass product with a frame comprises the following steps:
s1, preparing materials: preparing a battery piece, a welding strip, ultra-white toughened glass and an EVA adhesive film, cutting the glass into required sizes according to actual requirements when preparing the ultra-white toughened glass, then edging the cut glass, and then toughening to obtain the ultra-white toughened glass, and simultaneously cutting the EVA adhesive film and the welding strip into the required sizes for later use;
s2, welding the battery piece: welding the negative electrode of the single cell, aligning and lapping a rear welding strip with the back side of the single-welded cell upwards on the front back electrode, then sequentially arranging the single-welded cell on a series welding template, then welding by using the welding strip to form a cell panel, and after the series welding of the cell is finished, detecting the welded cell by using an EL detector to check whether the phenomena of insufficient welding and grid breaking exist or not;
s3, stacking: before lamination, firstly, the surface of the ultra-white toughened glass is wiped with alcohol by using non-woven fabric to be wet and cleaned, after the alcohol is volatilized, lamination is carried out, then the ultra-white toughened glass, the EVA adhesive film, the cell panel, the EVA adhesive film and the ultra-white toughened glass are sequentially placed from bottom to top, and meanwhile, the frame is placed at the edges of the two groups of ultra-white toughened glass to form a double-glass blank;
s4, sealing: wrapping the edge of the double-glass blank by using cotton cloth to form an airflow channel, inserting a suction nozzle of a vacuum assembly into the airflow channel, and extracting air in the interlayer of the double-glass blank by using the vacuum assembly to perform vacuum sealing treatment;
s5, hot pressing: putting the fixed dual-glass blank into a laminating machine for hot pressing, preheating before hot pressing to enable the internal temperature of the laminating machine to reach 15-20 ℃, adjusting the initial hot pressing temperature to 50 ℃ after the dual-glass blank is put into the laminating machine, heating and pressurizing after the internal temperature of the laminating machine reaches 50 ℃ which is preset, and carrying out heat preservation and pressure preservation treatment when the temperature reaches 125-130 ℃ and the pressure value reaches 1.3-1.4MPa, and preserving heat and pressure for 50 minutes;
s6, cooling: after heat preservation and pressure maintaining are carried out for 50 minutes, cooling and pressure reduction treatment is started, in the process of cooling and pressure reduction treatment, cooling and pressure maintaining are carried out firstly, so that after the internal temperature of a laminating machine is reduced to 40 ℃, the pressure reduction treatment is started, the pressure is the same as the atmospheric pressure, and then cooling treatment is carried out, so that the temperature reaches 10-15 ℃;
s7, cleaning: and taking out the hot-pressed double-glass, cleaning the surface, and removing burrs.
In summary, the following steps: according to the manufacturing process of the glass with the frame for the double-glass product, when the double-glass blank is subjected to hot pressing, preheating treatment is carried out firstly, so that the situation that the temperature of the double-glass blank is suddenly increased due to heat is avoided, bubbles are generated after an EVA (ethylene vinyl acetate) adhesive film in the double-glass blank is hot-melted, the solidified double-glass blank generates bubbles, the product quality of the double-glass is ensured, in the cooling process, cooling treatment is carried out firstly, then pressure reduction treatment is carried out, and finally cooling treatment is carried out continuously, so that the double-glass blank is prevented from being cracked due to the change of temperature and air pressure.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a glass manufacturing process of double glass product with frame which characterized in that: the method comprises the following steps:
s1, preparing materials: preparing a battery piece, a welding strip, ultra-white toughened glass and an EVA (ethylene vinyl acetate) adhesive film;
s2, welding the battery piece: welding the negative electrode of the single cell, aligning and lapping a rear welding strip with the back side of the single-welded cell upwards on the front back electrode, then sequentially arranging the welding strips on the series welding template, and then welding the welding strips to form a cell panel;
s3, stacking: placing the ultra-white toughened glass, the EVA adhesive film, the cell panel, the EVA adhesive film and the ultra-white toughened glass from bottom to top in sequence, and simultaneously placing the frame at the edges of the two groups of the ultra-white toughened glass to form a double-glass blank;
s4, sealing: pumping out air in the double-glass blank, and carrying out vacuum sealing treatment;
s5, hot pressing: putting the fixed double-glass blank into a laminating machine for hot pressing, and preheating before hot pressing;
s6, cooling: after heat preservation and pressure maintaining are carried out for 50 minutes, cooling and pressure reduction treatment are started;
s7, cleaning: and taking out the hot-pressed double-glass, cleaning the surface, and removing burrs.
2. The glass manufacturing process of the framed double-glass product according to claim 1, characterized in that: in step S3, before lamination, the nonwoven fabric is dipped in alcohol to wet and clean the surface of the ultra-white tempered glass, and lamination is performed after the alcohol is volatilized.
3. The glass manufacturing process of the framed double-glass product according to claim 1, characterized in that: in step S4, in the sealing process, an airflow channel needs to be formed by wrapping the edge of the dual-glass blank with cotton cloth, and in the sealing and vacuumizing process, the suction nozzle of the vacuum assembly is inserted into the airflow channel.
4. The glass manufacturing process of the framed double-glass product according to claim 1, characterized in that: when preparing the ultra-white toughened glass, cutting the glass into required sizes according to actual requirements, then edging the cut glass, and then carrying out toughening treatment.
5. The glass manufacturing process of the framed double-glass product according to claim 1, characterized in that: in step S5, the interior of the laminating machine is preheated to 15-20 ℃, when the double-glass blank is placed into the laminating machine, the initial hot-pressing temperature is adjusted to 50 ℃, when the interior temperature of the laminating machine reaches the preset 50 ℃, the heating and the pressurizing are carried out, when the temperature reaches 125-130 ℃ and the pressure value reaches 1.3-1.4MPa, the heat preservation and pressure maintaining treatment is carried out, and the heat preservation and pressure maintaining are carried out for 50 minutes.
6. The glass manufacturing process of the framed double-glass product according to claim 1, characterized in that: in step S6, in the cooling and pressure reducing process, cooling and pressure maintaining are performed first to reduce the internal temperature of the laminator to 40 ℃, then pressure reducing process is performed to make the pressure the same as the atmospheric pressure, and then cooling process is performed to make the temperature reach 10-15 ℃.
7. The glass manufacturing process of the framed double-glass product according to claim 1, characterized in that: after the series welding of the battery piece is finished, the EL detector is utilized to detect the welded battery piece, and whether the phenomena of insufficient welding and grid breaking exist is checked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335284.9A CN111162135B (en) | 2019-12-20 | 2019-12-20 | Glass manufacturing process for framed double-glass product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335284.9A CN111162135B (en) | 2019-12-20 | 2019-12-20 | Glass manufacturing process for framed double-glass product |
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| Publication Number | Publication Date |
|---|---|
| CN111162135A true CN111162135A (en) | 2020-05-15 |
| CN111162135B CN111162135B (en) | 2023-08-18 |
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| CN201911335284.9A Active CN111162135B (en) | 2019-12-20 | 2019-12-20 | Glass manufacturing process for framed double-glass product |
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| CN111162135B (en) | 2023-08-18 |
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