CN112645602A - Manufacturing method of 3D glass cover plate - Google Patents
Manufacturing method of 3D glass cover plate Download PDFInfo
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- CN112645602A CN112645602A CN202110004555.3A CN202110004555A CN112645602A CN 112645602 A CN112645602 A CN 112645602A CN 202110004555 A CN202110004555 A CN 202110004555A CN 112645602 A CN112645602 A CN 112645602A
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- glass sheet
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- ink
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- 239000011521 glass Substances 0.000 title claims abstract description 275
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 44
- 238000005498 polishing Methods 0.000 claims abstract description 33
- 238000013003 hot bending Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 22
- 238000005530 etching Methods 0.000 claims abstract description 22
- 238000007639 printing Methods 0.000 claims abstract description 21
- 238000005728 strengthening Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000000227 grinding Methods 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 17
- 229920001187 thermosetting polymer Polymers 0.000 claims description 16
- 239000012459 cleaning agent Substances 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 4
- 239000012670 alkaline solution Substances 0.000 claims description 4
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000003666 anti-fingerprint Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
- B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
- B24B7/242—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for plate glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The application discloses a method for manufacturing a 3D glass cover plate, which comprises the steps of obtaining a cut glass sheet with a first surface coated with printing ink; etching the second surface of the cut glass sheet to obtain an etched glass sheet with a matte effect; removing the printing ink, and processing the etched glass sheet after the printing ink is removed to obtain a processed glass sheet with a preset size; removing the dirt on the surface of the treated glass sheet to obtain a cleaned glass sheet; carrying out hot bending forming on the cleaned glass sheet to obtain a 3D glass sheet; the first surface of the 3D glass sheet is a concave surface, and the second surface of the 3D glass sheet is a convex surface; polishing the first surface of the 3D glass sheet, and removing dirt on the surface of the polished 3D glass sheet to obtain a cleaned 3D glass sheet; and strengthening the cleaned 3D glass sheet to obtain the 3D glass cover plate. The manufacturing method can simplify the production process of the 3D glass cover plate, reduce the production cost and improve the yield.
Description
Technical Field
The application relates to the technical field of 3D glass manufacturing, in particular to a manufacturing method of a 3D glass cover plate.
Background
Along with the development of technique, in some intelligent terminal, for example smart mobile phone, panel computer, wearable equipment etc. adopt 3D glass apron, the front of 3D glass apron has the matte effect after the etching, and the fingerprint can not be seen, touches to go the surperficial sense of touch obvious, realizes the anti fingerprint and the strong sense of touch effect of 3D glass apron, brings better use impression for the consumer.
The current production process flow of the 3D glass cover plate is as follows: cutting, namely cutting a large piece of glass into small pieces of glass; 2: machining for the first time to process small pieces of glass into required external dimensions; 3: cleaning; 4: hot bending, and processing small pieces of glass into 3D glass; 5: machining for the second time to form a camera shooting hole; 6: the periphery of the glass is polished, and the polished area of the brush 2 can comprise the peripheral edge of the 3D glass 1 and a part of arc edge of a convex surface, as shown in part A in FIG. 1; 7: sweeping and grinding the concave surface by using a nylon wire mixed brush to remove orange marks, indentations and other defects formed on the surface of the concave surface due to hot bending forming; 8: sweeping and grinding the convex surface; 9: sweeping and grinding the concave surface by using a polyurethane brush to repair fine scratches on the surface of the concave surface of the 3D glass and increase the strength of the 3D glass; 10: cleaning; 11: flat grinding inspection; 12: cleaning; 13: spraying photosensitive ink (a high-price ink) on the back (concave surface) of the 3D glass; 14: pre-baking; 15: exposing the photosensitive ink; 16: spraying a layer of photosensitive ink again; 17: pre-baking; 18: exposing the photosensitive ink; 19: developing the photosensitive ink; 20: wiping edge oil, namely wiping off the photosensitive ink splashed on the front surface of the 3D glass; 21: curing and baking; 22: cleaning; 23: inspecting white slices; 24: etching the front surface of the 3D glass to enable the front surface of the 3D glass to generate a matte effect; 25: deplating, namely removing the photosensitive ink; 26: flat grinding inspection; 27: and (4) performing strengthening treatment to improve the hardness of the 3D glass to obtain the 3D glass cover plate.
The existing process needs 27 procedures in total, hot bending is carried out before etching, polishing, multiple times of sweeping and two times of yellow light processes are carried out after hot bending, on one hand, the whole procedure is complicated, the time consumption is long, on the other hand, auxiliary consumables such as a polishing clamp, a polishing brush, grinding fluid, a cleaning agent and the like enable the production cost of the 3D glass cover plate to be high, the glass is the 3D glass during etching, corresponding clamps need to be selected according to the surface type of the 3D glass, one surface type corresponds to one special clamp, and the production cost is high; furthermore, when the photosensitive ink is sprayed on the concave surface in step 13, a gap is inevitably formed at the joint of the 3D glass 1 and the spraying jig 3, and as shown in part B in fig. 2, the photosensitive ink splashes to the convex edge of the 3D glass 1, so that step 20 of wiping the convex edge oil is required, and the 3D glass cover plate is easily scratched by wiping the edge oil, resulting in a low yield of the 3D glass cover plate.
Therefore, how to solve the above technical problems should be a great concern to those skilled in the art.
Disclosure of Invention
The application aims to provide a 3D glass cover plate manufacturing method, so that the 3D glass cover plate production process is simplified, the production cost is reduced, and the yield is improved.
In order to solve the technical problem, the application provides a method for manufacturing a 3D glass cover plate, which includes:
obtaining a cut glass sheet with a first surface coated with ink;
etching the second surface of the cut glass sheet to obtain an etched glass sheet with a matte effect;
removing the printing ink, and processing the etched glass sheet after the printing ink is removed to obtain a processed glass sheet with a preset size;
removing the dirt on the surface of the treated glass sheet to obtain a cleaned glass sheet;
carrying out hot bending forming on the cleaned glass sheet to obtain a 3D glass sheet; the first surface of the 3D glass sheet is a concave surface, and the second surface of the 3D glass sheet is a convex surface;
polishing the first surface of the 3D glass sheet, and removing dirt on the surface of the polished 3D glass sheet to obtain a cleaned 3D glass sheet;
strengthening the cleaned 3D glass sheet to obtain a 3D glass cover plate;
wherein the obtaining of the ink-coated first surface cut glass sheet comprises:
spraying thermosetting ink on the first surface of the glass substrate at one time, and drying the thermosetting ink to obtain a pretreated glass substrate;
and cutting the pretreated glass substrate to obtain the cut glass sheet.
Optionally, before the polishing the first surface of the 3D glass sheet, further comprising:
and manufacturing a camera hole on the 3D glass sheet.
Optionally, before the strengthening the cleaned 3D glass sheet, the method further includes:
and carrying out flat grinding inspection on the cleaned 3D glass sheet to screen out the cleaned 3D glass sheet with flaws.
Optionally, when the thermosetting ink is dried, the baking temperature is between 150 ℃ and 180 ℃, and the baking time is between 20 minutes and 30 minutes.
Optionally, the removing the ink comprises:
the ink is dissolved by using a strongly acidic solution or a strongly alkaline solution.
Optionally, the polishing the first surface of the 3D glass sheet comprises:
and placing the 3D glass sheet in a polishing machine, and polishing the first surface by utilizing a polyurethane brush.
Optionally, the etching the second surface of the cut glass sheet includes:
and etching the second surface of the cut glass sheet by using a hydrofluoric acid solution.
Optionally, the removing the smudge from the surface of the treated glass sheet comprises:
placing the treated glass sheet into a cleaning agent, and cleaning the treated glass sheet by adopting an ultrasonic cleaning mode;
and cleaning the cleaning agent attached to the surface of the treated glass sheet by using pure water.
The application provides a 3D glass apron preparation method, includes: obtaining a cut glass sheet with a first surface coated with ink; etching the second surface of the cut glass sheet to obtain an etched glass sheet with a matte effect; removing the printing ink, and processing the etched glass sheet after the printing ink is removed to obtain a processed glass sheet with a preset size; removing the dirt on the surface of the treated glass sheet to obtain a cleaned glass sheet; carrying out hot bending forming on the cleaned glass sheet to obtain a 3D glass sheet, wherein the first surface of the 3D glass sheet is a concave surface, and the second surface of the 3D glass sheet is a convex surface; polishing the first surface of the 3D glass sheet, and removing dirt on the surface of the polished 3D glass sheet to obtain a cleaned 3D glass sheet; and strengthening the cleaned 3D glass sheet to obtain the 3D glass cover plate.
Therefore, in the method for manufacturing the 3D glass cover plate, after the cut glass sheet coated with the ink is obtained, the second surface of the cut glass sheet is etched to obtain the etched glass sheet with the matte effect, then the three steps of ink removal, edge grinding and cleaning are sequentially performed, and then the hot bending forming is performed to obtain the 3D glass sheet, namely, only three steps of operation are required between the etching and the hot bending forming, and further, after the 3D glass sheet is obtained, the four procedures of glass periphery polishing, first concave surface sweeping and grinding, convex surface sweeping and second concave surface sweeping and grinding in the prior art are reduced to the procedure of only performing one-time polishing on the first surface of the 3D glass sheet, because the second surface is etched before the hot bending forming, the second surface of the 3D glass sheet achieves the matte effect, and the second surface does not need to be polished, the periphery of the second surface does not need to be polished, and the second surface achieves the matte effect, so that the flaws of the first surface are not obvious or weakened, the scratches of the first surface can be repaired by polishing once, and the process flow is obviously simplified; meanwhile, the consumption of auxiliary materials such as polishing brushes, grinding fluid, cleaning agents and the like is reduced, the production cost is reduced, the cut glass sheet is flat during etching, a special corresponding clamp is not needed, the clamp manufacturing cost is reduced, and the cost is reduced; in addition, the glass piece is flat after cutting in this application, and the coating printing ink is gone on before the hot bending, and the printing ink can not splash to the second surface, consequently need not wipe the face oil of limit, can avoid producing the mar, promotes 3D glass apron yield.
Drawings
For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view illustrating four-side polishing of 3D glass in a conventional 3D glass cover plate manufacturing process;
FIG. 2 is a schematic diagram illustrating a 3D glass plate being coated with photosensitive ink in a conventional 3D glass cover plate manufacturing process;
FIG. 3 is a flowchart of a method for manufacturing a 3D glass cover plate according to an embodiment of the present disclosure;
fig. 4 is a flow chart for obtaining a cut glass sheet with a first surface coated with ink as provided in the examples of the present application.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Just as the background art part, when producing 3D glass apron at present, the preparation process flow is complicated loaded down with trivial details, consuming time long, and multiple auxiliary material such as polishing anchor clamps, polishing brush, abrasive fluid, cleaner make 3D glass apron manufacturing cost high to sensitization printing ink can splash to 3D glass's convex surface edge, consequently need clean the boundary oil of convex surface, and clean boundary oil and produce the mar very easily, lead to 3D glass apron yield low.
In view of this, the present application provides a method for manufacturing a 3D glass cover plate, please refer to fig. 3, where fig. 3 is a flowchart of a method for manufacturing a 3D glass cover plate according to an embodiment of the present application, and the method includes:
step S101: a cut glass sheet having a first surface coated with ink is obtained.
The ink serves to protect the non-etched surface, i.e. the first surface, from damage.
Step S102: and etching the second surface of the cut glass sheet to obtain the etched glass sheet with the matte effect.
Optionally, the etching the second surface of the cut glass sheet includes:
and etching the second surface of the cut glass sheet by using a hydrofluoric acid solution. For the specific etching process, reference may be made to the related art, and details are not repeated herein.
The cut glass sheet is flat, the clamp used in the etching process can be a universal plane groove-shaped cavity clamp suitable for processing plane glass with various sizes, a special clamp is not required to be adopted according to the molded surface of the cut glass sheet, the manufacturing cost of the clamp is saved, and the cost is reduced.
The second surface can not see the fingerprint in the fog face effect, and it is obvious to touch the surface sense of touch for the glass piece has anti fingerprint and strong sense of touch effect. The first surface is opposite to the second surface.
Step S103: and removing the printing ink, and processing the etched glass sheet after the printing ink is removed to obtain a processed glass sheet with a preset size.
Specifically, the etched glass sheet after ink removal is subjected to edge grinding (shape processing) by a CNC (computer Numerical Control) Machine and a grinding wheel rod, so as to obtain a processed glass sheet. The preset size is not specifically limited in the application and is determined according to the size of the cover plate required by the intelligent terminal.
Step S104: and removing the dirt on the surface of the treated glass sheet to obtain the cleaned glass sheet.
Optionally, the removing the smudge from the surface of the treated glass sheet comprises:
step S1041: and placing the treated glass sheet into a cleaning agent, and cleaning the treated glass sheet by adopting an ultrasonic cleaning mode.
Step S1042: and cleaning the cleaning agent attached to the surface of the treated glass sheet by using pure water.
Step S105: carrying out hot bending forming on the cleaned glass sheet to obtain a 3D glass sheet; the first surface of the 3D glass sheet is a concave surface, and the second surface is a convex surface.
Specifically, through hot bending machine platform and mould, process into the 3D glass piece that has the 3D effect with clean back glass piece, the 3D effect includes that one side is crooked, both sides are crooked, trilateral bending, four sides are crooked.
It should be noted that the second surface of the 3D glass sheet obtained by hot bending is convex, and the first surface is concave, that is, the glass sheet before step S105 is flat.
Step S106: and polishing the first surface of the 3D glass sheet, and removing dirt on the surface of the polished 3D glass sheet to obtain the cleaned 3D glass sheet.
Wherein the polishing the first surface of the 3D glass sheet further comprises:
and placing the 3D glass sheet into a polishing machine, and polishing the first surface by utilizing a polyurethane brush to repair the fine scratch on the first surface and increase the strength of the 3D glass sheet.
Removing the smudge on the surface of the polished 3D glass sheet comprises:
placing the polished 3D glass sheet into a cleaning agent, and cleaning the polished 3D glass sheet by adopting an ultrasonic cleaning mode;
and cleaning the cleaning agent attached to the surface of the polished 3D glass sheet by using pure water.
Step S107: and strengthening the cleaned 3D glass sheet to obtain the 3D glass cover plate.
Because the intelligent terminal has certain requirement on the hardness of the 3D glass cover plate, the hardness of the cleaned 3D glass sheet needs to be enhanced by strengthening treatment, and the specific hardness requirement is determined according to the situation, and the strengthened result needs to meet the requirement on the hardness.
Optionally, before the polishing the first surface of the 3D glass sheet, further comprising:
and manufacturing a camera hole on the 3D glass sheet.
Specifically, through CNC board and emery wheel stick, the hole of making a video recording of required size is processed out to accurate on 3D glass piece.
In the method for manufacturing the 3D glass cover plate, after the cut glass sheet coated with the printing ink is obtained, the second surface of the cut glass sheet is etched to obtain the etched glass sheet with the matte effect, then the three steps of printing ink removal, edge grinding processing and cleaning are sequentially carried out, and then hot bending forming is carried out to obtain the 3D glass sheet, namely, only three steps of operation are carried out between etching and hot bending forming, furthermore, after the 3D glass sheet is obtained, four procedures of glass peripheral polishing, first concave surface sweeping and grinding, convex surface sweeping and grinding and second concave surface sweeping and grinding in the prior art are reduced to the procedure that only the first surface of the 3D glass sheet needs to be polished once, because the second surface is etched before hot bending forming, the second surface of the 3D glass sheet achieves the matte effect, and the second surface does not need to be polished, the periphery of the second surface does not need to be polished, and the second surface achieves the matte effect, so that the flaws of the first surface are not obvious or weakened, the scratches of the first surface can be repaired by polishing once, and the process flow is obviously simplified; meanwhile, the consumption of auxiliary materials such as polishing brushes, grinding fluid, cleaning agents and the like is reduced, the production cost is reduced, the cut glass sheet is flat during etching, a special corresponding clamp is not needed, the clamp manufacturing cost is reduced, and the cost is reduced; in addition, the glass piece is flat after cutting in this application, and the coating printing ink is gone on before the hot bending, and the printing ink can not splash to the second surface, consequently need not wipe the face oil of limit, can avoid producing the mar, promotes 3D glass apron yield.
In one embodiment of the present application, before the strengthening the cleaned 3D glass sheet, the method further comprises:
and carrying out flat grinding inspection on the cleaned 3D glass sheet to screen out the cleaned 3D glass sheet with flaws.
Carry out the flat grinding inspection to clean back 3D glass piece, select the clean back 3D glass piece that does not have the flaw, then strengthen the clean back 3D glass piece that does not have the flaw, promote the yield of 3D glass apron, avoid strengthening the glass piece that has the flaw, reduce the human cost.
Referring to fig. 4, fig. 4 is a flowchart of obtaining a cut glass sheet with a first surface coated with ink according to an embodiment of the present application, including:
step S201: and spraying thermosetting ink on the first surface of the glass substrate at one time, and drying the thermosetting ink to obtain the pretreated glass substrate.
And when the thermosetting printing ink is dried, the baking temperature is between 150 ℃ and 180 ℃, and the baking time is between 20 minutes and 30 minutes.
Step S202: and cutting the pretreated glass substrate to obtain the cut glass sheet.
Specifically, a numerical control cutting machine is adopted to cut a large-sized pretreated glass substrate to obtain small cut glass sheets.
Accordingly, the removing the ink comprises:
the ink is dissolved by using a strongly acidic solution or a strongly alkaline solution.
Strongly acidic solutions include, but are not limited to, sulfuric acid solutions, nitric acid solutions, and strongly basic solutions include, but are not limited to, sodium hydroxide solutions, potassium hydroxide solutions.
In the embodiment, the ink is thermosetting ink, the thermosetting ink can be directly sprayed to the thickness of more than 0.02mm during spraying to protect the whole first surface, then the second surface of the cut glass sheet is etched, and the etched matte effect can be achieved after hot bending forming; the photosensitive ink can only be sprayed with a thickness of 0.01mm once during spraying, the first surface cannot be completely protected, and a certain proportion of bad sand holes exist, so the photosensitive ink is sprayed twice, and the photosensitive ink needs to be exposed twice, so the process flow can be further simplified by spraying the thermosetting ink, the price of the thermosetting ink is lower than that of the photosensitive ink, and the cost can be further reduced. In addition, the first surface of the glass substrate is sprayed firstly, and then the glass substrate is cut to obtain small cut glass sheets, so that on one hand, the effect that a large piece of glass is cut into small pieces of glass firstly in the original process, and then photosensitive ink is sprayed on 3D glass processed from the small pieces of glass to protect non-etched surfaces can be achieved, and the effect that the subsequent hot bending forming is not influenced to obtain the 3D glass sheets can be achieved; on the other hand, need respectively carry out spraying, exposure to the 3D glass of each fritter in the original technology, and only need carry out disposable spraying to the glass substrate in this application, it is simple and convenient and efficient.
The flow of the method for manufacturing the 3D glass cover plate provided by the present application is further described below.
step 4, etching: spraying hydrofluoric acid serving as chemical liquid on a second surface (non-printing ink surface) of the glass sheet to generate an atomization effect;
step 5, deplating: removing the thermosetting ink on the second surface of the glass sheet by using a strong alkaline solution;
and 6, machining: processing the glass sheet into a glass sheet with a required shape and size through a CNC machine table and a grinding wheel rod;
step 7, cleaning: removing dirt on the surface of the glass sheet by a cleaning machine table and a cleaning agent;
step 8, hot bending forming: processing the glass sheet into a 3D glass sheet through a hot bending machine table and a mould;
and 9, machining: processing a camera hole on the 3D glass sheet through a CNC machine table and a grinding wheel rod;
step 10, polishing and grinding: polishing the first surface of the 3D glass sheet by using a polyurethane brush through a cubic crystal 900 type polishing machine table and a clamp;
step 11, cleaning: removing dirt on the surface of the 3D glass sheet through a cleaning machine table and a cleaning agent;
step 12, flat grinding inspection: checking surface appearance flaws of the 3D glass sheet, and screening out the 3D glass sheet without flaws;
step 13, strengthening: the hardness of the 3D glass sheet is improved through the proportion of the strengthening furnace and the potassium-sodium medicament, and the 3D glass cover plate meeting the hardness requirement is obtained.
In order to verify the feasibility of the 3D glass cover plate manufacturing method provided by the present application, the through-yield of the existing 3D glass cover plate manufacturing method and the 3D glass cover plate manufacturing method in the present application is compared and analyzed, the 3D glass cover plate manufacturing method of the present application is performed five times in total, and the comparison result of the through-yield is shown in table 1, and it can be seen from table 1 that the through-yield of the 3D glass cover plate manufacturing method of the present application is higher than that of the existing manufacturing method, so the manufacturing method of the present application is feasible.
TABLE 1 straight through ratio of existing 3D glass cover plate fabrication method and fabrication method of the present application
| Straight pass rate | |
| Existing methods | 42.5 |
| Method | |
| 1 of the present application | 60.2 |
| Method | |
| 2 of the present application | 59.4 |
| Method | |
| 3 of the present application | 61.5％ |
| Method 4 of the present application | 62.1％ |
| Method 5 of the present application | 58.3％ |
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The method for manufacturing the 3D glass cover plate provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (8)
1. A method for manufacturing a 3D glass cover plate is characterized by comprising the following steps:
obtaining a cut glass sheet with a first surface coated with ink;
etching the second surface of the cut glass sheet to obtain an etched glass sheet with a matte effect;
removing the printing ink, and processing the etched glass sheet after the printing ink is removed to obtain a processed glass sheet with a preset size;
removing the dirt on the surface of the treated glass sheet to obtain a cleaned glass sheet;
carrying out hot bending forming on the cleaned glass sheet to obtain a 3D glass sheet; the first surface of the 3D glass sheet is a concave surface, and the second surface of the 3D glass sheet is a convex surface;
polishing the first surface of the 3D glass sheet, and removing dirt on the surface of the polished 3D glass sheet to obtain a cleaned 3D glass sheet;
strengthening the cleaned 3D glass sheet to obtain a 3D glass cover plate;
wherein the obtaining of the ink-coated first surface cut glass sheet comprises:
spraying thermosetting ink on the first surface of the glass substrate at one time, and drying the thermosetting ink to obtain a pretreated glass substrate;
and cutting the pretreated glass substrate to obtain the cut glass sheet.
2. The method of fabricating a 3D glass cover plate of claim 1, further comprising, prior to the polishing the first surface of the 3D glass sheet:
and manufacturing a camera hole on the 3D glass sheet.
3. The method of manufacturing a 3D glass cover plate according to claim 1, further comprising, prior to the strengthening the cleaned 3D glass sheet:
and carrying out flat grinding inspection on the cleaned 3D glass sheet to screen out the cleaned 3D glass sheet with flaws.
4. The method for manufacturing a 3D glass cover plate according to claim 1, wherein the baking temperature is between 150 ℃ and 180 ℃ and the baking time is between 20 minutes and 30 minutes when the thermosetting ink is baked.
5. The method of manufacturing a 3D glass cover plate according to claim 1, wherein the removing the ink comprises:
the ink is dissolved by using a strongly acidic solution or a strongly alkaline solution.
6. The method of manufacturing a 3D glass cover plate of claim 1, wherein the polishing the first surface of the 3D glass sheet comprises:
and placing the 3D glass sheet in a polishing machine, and polishing the first surface by utilizing a polyurethane brush.
7. The method of claim 1, wherein the etching the second surface of the cut glass sheet comprises:
and etching the second surface of the cut glass sheet by using a hydrofluoric acid solution.
8. The method of any of claims 1 to 7, wherein removing the smudge from the surface of the treated glass sheet comprises:
placing the treated glass sheet into a cleaning agent, and cleaning the treated glass sheet by adopting an ultrasonic cleaning mode;
and cleaning the cleaning agent attached to the surface of the treated glass sheet by using pure water.
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| CN202110004555.3A CN112645602A (en) | 2021-01-04 | 2021-01-04 | Manufacturing method of 3D glass cover plate |
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| CN115490431A (en) * | 2022-09-13 | 2022-12-20 | 深圳市信濠光电科技股份有限公司 | AG etching vacancy-avoiding step-free processing method and glass product |
| CN115922472A (en) * | 2022-10-31 | 2023-04-07 | 浙江罗克光电科技股份有限公司 | Production process of microcrystalline cover plate of mobile phone |
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