CN112582500A - Production process of double-glass photovoltaic module - Google Patents
Production process of double-glass photovoltaic module Download PDFInfo
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- CN112582500A CN112582500A CN202011441183.2A CN202011441183A CN112582500A CN 112582500 A CN112582500 A CN 112582500A CN 202011441183 A CN202011441183 A CN 202011441183A CN 112582500 A CN112582500 A CN 112582500A
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- Prior art keywords
- glass
- toughened glass
- adhesive film
- welding
- photovoltaic module
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- 239000011521 glass Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000005341 toughened glass Substances 0.000 claims abstract description 66
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 63
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 63
- 239000002313 adhesive film Substances 0.000 claims abstract description 48
- 238000003466 welding Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000005496 tempering Methods 0.000 claims abstract description 8
- 238000010030 laminating Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000005485 electric heating Methods 0.000 claims description 23
- 230000000712 assembly Effects 0.000 claims description 16
- 238000000429 assembly Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 10
- 239000000565 sealant Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/10—Frame structures
-
- 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 relates to the technical field of photovoltaic modules, and discloses a production process of a double-glass photovoltaic module, which comprises the following steps: the method comprises the following steps: tempering the glass, cutting the tempered glass into required sizes for later use after the tempering treatment is finished, preparing an EVA (ethylene vinyl acetate) adhesive film with the same size as the tempered glass for later use, and preparing a welding strip, a battery piece, a frame and a rubber sleeve strip which are required by welding; step two: and (3) performing dust removal treatment on materials such as toughened glass, battery pieces, EVA (ethylene vinyl acetate) adhesive films and the like. According to the invention, in the production process, firstly, the toughened glass and the EVA adhesive film are preheated at low temperature, so that the toughened glass and the EVA adhesive film can be fully adhered to the surfaces of the toughened glass and the battery piece after being softened, and then, the uneven stress caused by non-adhesion in the laminating process can be avoided, so that the photovoltaic module is prevented from cracking.
Description
Technical Field
The invention relates to the technical field of photovoltaic modules, in particular to a production process of a double-glass photovoltaic module.
Background
At present, solar photovoltaic power generation is a technology for converting light energy into electric energy by utilizing a semiconductor photovoltaic effect, and is one of effective ways for solving the problems of earth pollution and energy shortage. The low-iron glass after being toughened has higher strength and can bear larger wind pressure and very large day and night temperature difference change.
The double-glass photovoltaic module is easy to generate the phenomenon of self-explosion in the use process, because the double-glass photovoltaic module replaces the back plate with glass, the stress generated in the production process is uneven, the expansion caused by heat and the contraction caused by cold in the use process can easily lead to the breakage of the glass, and in addition, the extrusion force of the double-glass photovoltaic module is uneven due to the adoption of the fixture during installation, and the breakage can also be generated. Therefore, we propose a process for producing a double-glass photovoltaic module.
Disclosure of Invention
The invention aims to provide a production process of a double-glass photovoltaic assembly, which comprises the steps of preheating toughened glass and an EVA adhesive film at a low temperature in a production process, so that the toughened glass and the EVA adhesive film can be fully attached to the surfaces of the toughened glass and a battery piece after being softened, avoiding uneven stress caused by non-attachment in a laminating process, further avoiding the photovoltaic assembly from cracking, fixing the photovoltaic assembly in a frame by a rubber sleeve strip, having a good protection and buffering effect on thermal expansion and cold contraction of the photovoltaic assembly, avoiding the damage of extrusion force to the photovoltaic assembly during installation, and solving the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a double-glass photovoltaic module production process comprises the following steps:
the method comprises the following steps: tempering the glass, cutting the tempered glass into required sizes for later use after the tempering treatment is finished, preparing an EVA (ethylene vinyl acetate) adhesive film with the same size as the tempered glass for later use, and preparing a welding strip, a battery piece, a frame and a rubber sleeve strip which are required by welding;
step two: dedusting materials such as toughened glass, battery pieces and EVA (ethylene vinyl acetate) adhesive films, placing welding raw materials in a dust-free welding workshop, and welding the battery pieces by using a preheated welding gun through a welding strip;
step three: laying welded battery pieces in a mould plate according to requirements, and connecting a plurality of battery pieces in series to form a battery plate, laying bottom toughened glass on an electric heating plate, laying an EVA (ethylene vinyl acetate) adhesive film on the surface of the toughened glass, then laying the battery pieces on the EVA adhesive film uniformly at equal intervals, then laying an EVA adhesive film and surface toughened glass in sequence, pressing another electric heating plate above the surface toughened glass, starting the electric heating plate at the bottom and the electric heating plate above, and preheating the toughened glass and the EVA adhesive film to ensure that the EVA adhesive film can be softened and adhered to the surfaces of the toughened glass and the battery plate, so that bubbles are prevented from being generated between the EVA adhesive film and the battery pieces and the toughened glass and the battery pieces are ensured to be adhered to the surfaces of the toughened glass and the battery plate;
step four: removing the upper electric heating plate, detecting whether bubbles, gaps and non-tight conditions exist between the EVA adhesive film and the toughened glass and the battery piece, placing the assembly meeting the requirements in a laminating machine, pumping out air in the assembly to form a vacuum environment, heating, melting the EVA adhesive film, sticking the toughened glass and the battery piece together, continuously heating for a certain time, pressurizing the assembly, pressing the assembly under high pressure, bonding the assembly stably, cooling, and taking out the assembly;
step five: sleeving rubber casing strips on the side edges of the assemblies to enable the rubber casing strips to be clamped on the two sides of the assemblies, then enabling the assemblies and the rubber casing strips to be arranged in the frame to be fixed, and meanwhile filling sealant to seal, so that the production of the photovoltaic assemblies is completed;
step six: and detecting the performance and the quality of the produced photovoltaic module, and then packaging and storing qualified products.
In a preferred embodiment of the present invention, during the welding operation in the second step, the welder wears dust-free clothes and performs antistatic treatment.
As a preferred embodiment of the present invention, the welding temperature in the second step is 350-400 ℃, and dust collection equipment is arranged to avoid dust generation during the welding process.
As a preferred embodiment of the invention, the preheating temperature of the electric heating plate in the third step is 70-80 ℃, and the preheating time is 3-5 min.
In a preferred embodiment of the present invention, the heating temperature in the fourth step is 140 ℃ to 150 ℃, and the pressurization treatment is performed after heating for at least 5 min.
In a preferred embodiment of the present invention, the pressing time in the fourth step is 5-10min, and the pressing strength is 65 kpa.
In a preferred embodiment of the present invention, in the fifth step, a waterproof sealant is used for sealing and fixing.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, in the production process, firstly, the toughened glass and the EVA adhesive film are preheated at low temperature, so that the toughened glass and the EVA adhesive film can be fully adhered to the surfaces of the toughened glass and the battery piece after being softened, and then, the uneven stress caused by non-adhesion in the laminating process can be avoided, so that the photovoltaic module is prevented from cracking.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart of a process for producing a double-glass photovoltaic module according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the present invention provides a technical solution: a double-glass photovoltaic module production process comprises the following steps:
the method comprises the following steps: tempering the glass, cutting the tempered glass into required sizes for later use after the tempering treatment is finished, preparing an EVA (ethylene vinyl acetate) adhesive film with the same size as the tempered glass for later use, and preparing a welding strip, a battery piece, a frame and a rubber sleeve strip which are required by welding;
step two: dedusting materials such as toughened glass, battery pieces and EVA (ethylene vinyl acetate) adhesive films, placing welding raw materials in a dust-free welding workshop, and welding the battery pieces by using a preheated welding gun through a welding strip;
step three: laying welded battery pieces in a mould plate according to requirements, and connecting a plurality of battery pieces in series to form a battery plate, laying bottom toughened glass on an electric heating plate, laying an EVA (ethylene vinyl acetate) adhesive film on the surface of the toughened glass, then laying the battery pieces on the EVA adhesive film uniformly at equal intervals, then laying an EVA adhesive film and surface toughened glass in sequence, pressing another electric heating plate above the surface toughened glass, starting the electric heating plate at the bottom and the electric heating plate above, and preheating the toughened glass and the EVA adhesive film to ensure that the EVA adhesive film can be softened and adhered to the surfaces of the toughened glass and the battery plate, so that bubbles are prevented from being generated between the EVA adhesive film and the battery pieces and the toughened glass and the battery pieces are ensured to be adhered to the surfaces of the toughened glass and the battery plate;
step four: removing the upper electric heating plate, detecting whether bubbles, gaps and non-tight conditions exist between the EVA adhesive film and the toughened glass and the battery piece, placing the assembly meeting the requirements in a laminating machine, pumping out air in the assembly to form a vacuum environment, heating, melting the EVA adhesive film, sticking the toughened glass and the battery piece together, continuously heating for a certain time, pressurizing the assembly, pressing the assembly under high pressure, bonding the assembly stably, cooling, and taking out the assembly;
step five: sleeving rubber casing strips on the side edges of the assemblies to enable the rubber casing strips to be clamped on the two sides of the assemblies, then enabling the assemblies and the rubber casing strips to be arranged in the frame to be fixed, and meanwhile filling sealant to seal, so that the production of the photovoltaic assemblies is completed;
step six: and detecting the performance and the quality of the produced photovoltaic module, and then packaging and storing qualified products.
Furthermore, when the welding work is carried out in the second step, a welder wears dust-free clothes and carries out anti-static treatment.
Furthermore, the welding temperature in the second step is 350-.
Further, the preheating temperature of the electric heating plate in the third step is 70-80 ℃, and the preheating time is 3-5 min.
Further, the heating temperature in the fourth step is 140-150 ℃, and the pressurization treatment is carried out after at least 5min of heating.
Furthermore, the pressurizing time in the fourth step is 5-10min, and the pressurizing strength is 65 kpa.
Further, in the fifth step, waterproof sealant is used for sealing and fixing.
When the production process of the double-glass photovoltaic module is used, glass is subjected to toughening treatment, after the toughening treatment is finished, the toughened glass is cut into required sizes for standby, an EVA (ethylene vinyl acetate) adhesive film with the same size as the toughened glass is prepared for standby, and meanwhile, a welding strip, a battery piece, a frame and a rubber sleeve strip which are required by welding are prepared; dedusting materials such as toughened glass, battery pieces and EVA (ethylene vinyl acetate) adhesive films, placing welding raw materials in a dust-free welding workshop, and welding the battery pieces by using a preheated welding gun through a welding strip; laying welded battery pieces in a mould plate according to requirements, and connecting a plurality of battery pieces in series to form a battery plate, laying bottom toughened glass on an electric heating plate, laying an EVA (ethylene vinyl acetate) adhesive film on the surface of the toughened glass, then laying the battery pieces on the EVA adhesive film uniformly at equal intervals, then laying an EVA adhesive film and surface toughened glass in sequence, pressing another electric heating plate above the surface toughened glass, starting the electric heating plate at the bottom and the electric heating plate above, and preheating the toughened glass and the EVA adhesive film to ensure that the EVA adhesive film can be softened and adhered to the surfaces of the toughened glass and the battery plate, so that bubbles are prevented from being generated between the EVA adhesive film and the battery pieces and the toughened glass and the battery pieces are ensured to be adhered to the surfaces of the toughened glass and the battery plate; removing the upper electric heating plate, detecting whether bubbles, gaps and non-tight conditions exist between the EVA adhesive film and the toughened glass and the battery piece, placing the assembly meeting the requirements in a laminating machine, pumping out air in the assembly to form a vacuum environment, heating, melting the EVA adhesive film, sticking the toughened glass and the battery piece together, continuously heating for a certain time, pressurizing the assembly, pressing the assembly under high pressure, bonding the assembly stably, cooling, and taking out the assembly; sleeving rubber casing strips on the side edges of the assemblies to enable the rubber casing strips to be clamped on the two sides of the assemblies, then enabling the assemblies and the rubber casing strips to be arranged in the frame to be fixed, and meanwhile filling sealant to seal, so that the production of the photovoltaic assemblies is completed; carry out the detection of performance and quality to the photovoltaic module of production completion, later make qualified product pack and deposit, through in process of production, at first carry out microthermal preheating to toughened glass and EVA glued membrane, make its can be abundant after softening paste the surface at toughened glass and battery piece tightly, later the lamination in-process can avoid not pasting the stress inequality that tightly leads to, and then avoid photovoltaic module to break, simultaneously because the rubber nook fixes photovoltaic module in the frame, have better protection buffering effect to photovoltaic module's expend with heat and contract with cold, the injury to photovoltaic module of extrusion force when also avoiding installing.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The production process of the double-glass photovoltaic module is characterized by comprising the following steps of:
the method comprises the following steps: tempering the glass, cutting the tempered glass into required sizes for later use after the tempering treatment is finished, preparing an EVA (ethylene vinyl acetate) adhesive film with the same size as the tempered glass for later use, and preparing a welding strip, a battery piece, a frame and a rubber sleeve strip which are required by welding;
step two: dedusting materials such as toughened glass, battery pieces and EVA (ethylene vinyl acetate) adhesive films, placing welding raw materials in a dust-free welding workshop, and welding the battery pieces by using a preheated welding gun through a welding strip;
step three: laying welded battery pieces in a mould plate according to requirements, and connecting a plurality of battery pieces in series to form a battery plate, laying bottom toughened glass on an electric heating plate, laying an EVA (ethylene vinyl acetate) adhesive film on the surface of the toughened glass, then laying the battery pieces on the EVA adhesive film uniformly at equal intervals, then laying an EVA adhesive film and surface toughened glass in sequence, pressing another electric heating plate above the surface toughened glass, starting the electric heating plate at the bottom and the electric heating plate above, and preheating the toughened glass and the EVA adhesive film to ensure that the EVA adhesive film can be softened and adhered to the surfaces of the toughened glass and the battery plate, so that bubbles are prevented from being generated between the EVA adhesive film and the battery pieces and the toughened glass and the battery pieces are ensured to be adhered to the surfaces of the toughened glass and the battery plate;
step four: removing the upper electric heating plate, detecting whether bubbles, gaps and non-tight conditions exist between the EVA adhesive film and the toughened glass and the battery piece, placing the assembly meeting the requirements in a laminating machine, pumping out air in the assembly to form a vacuum environment, heating, melting the EVA adhesive film, sticking the toughened glass and the battery piece together, continuously heating for a certain time, pressurizing the assembly, pressing the assembly under high pressure, bonding the assembly stably, cooling, and taking out the assembly;
step five: sleeving rubber casing strips on the side edges of the assemblies to enable the rubber casing strips to be clamped on the two sides of the assemblies, then enabling the assemblies and the rubber casing strips to be arranged in the frame to be fixed, and meanwhile filling sealant to seal, so that the production of the photovoltaic assemblies is completed;
step six: and detecting the performance and the quality of the produced photovoltaic module, and then packaging and storing qualified products.
2. The process for producing a double-glass photovoltaic module according to claim 1, wherein: and in the second step, when welding is carried out, a welder wears dust-free clothes and carries out anti-static treatment.
3. The process for producing a double-glass photovoltaic module according to claim 1, wherein: the welding temperature in the second step is 350-400 ℃, and dust collection equipment is arranged to avoid dust generation in the welding process.
4. The process for producing a double-glass photovoltaic module according to claim 1, wherein: the preheating temperature of the electric heating plate in the third step is 70-80 ℃, and the preheating time is 3-5 min.
5. The process for producing a double-glass photovoltaic module according to claim 1, wherein: and the heating temperature in the fourth step is 140-150 ℃, and the pressurization treatment is carried out after the heating is carried out for at least 5 min.
6. The process for producing a double-glass photovoltaic module according to claim 1, wherein: the pressurizing time in the fourth step is 5-10min, and the pressurizing strength is 65 kpa.
7. The process for producing a double-glass photovoltaic module according to claim 1, wherein: and fifthly, sealing and fixing by using waterproof sealant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011441183.2A CN112582500A (en) | 2020-12-08 | 2020-12-08 | Production process of double-glass photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011441183.2A CN112582500A (en) | 2020-12-08 | 2020-12-08 | Production process of double-glass photovoltaic module |
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| CN112582500A true CN112582500A (en) | 2021-03-30 |
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