CN113772962A - Preparation method of cover plate glass - Google Patents
Preparation method of cover plate glass Download PDFInfo
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- CN113772962A CN113772962A CN202111076445.4A CN202111076445A CN113772962A CN 113772962 A CN113772962 A CN 113772962A CN 202111076445 A CN202111076445 A CN 202111076445A CN 113772962 A CN113772962 A CN 113772962A
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- Prior art keywords
- cover plate
- plate glass
- raw material
- glass raw
- etching
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- 239000005357 flat glass Substances 0.000 title claims abstract description 118
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 99
- 238000005530 etching Methods 0.000 claims abstract description 65
- 238000007650 screen-printing Methods 0.000 claims abstract description 50
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 239000000243 solution Substances 0.000 claims abstract description 33
- 239000002253 acid Substances 0.000 claims abstract description 28
- 238000011282 treatment Methods 0.000 claims abstract description 28
- 238000004140 cleaning Methods 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000007639 printing Methods 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 9
- 238000005496 tempering Methods 0.000 claims abstract description 8
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 7
- 238000005562 fading Methods 0.000 claims abstract description 5
- 239000012670 alkaline solution Substances 0.000 claims abstract description 4
- 239000007888 film coating Substances 0.000 claims abstract description 4
- 238000009501 film coating Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 19
- 239000006059 cover glass Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000004040 coloring Methods 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001465 metallisation Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 239000003814 drug Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000008213 purified water Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000011068 loading method Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005816 glass manufacturing process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- 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
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
-
- 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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/119—Deposition methods from solutions or suspensions by printing
Abstract
The invention discloses a preparation method of cover plate glass, which comprises the following steps: s1, screen printing protective ink: silk-printing a layer of acid-resistant protective printing ink on both sides of the cover plate glass raw material; s2, cutting; s3, CNC machining; s4, etching: etching the cover plate glass raw material which is machined and molded by CNC for 4-7 min by using etching equipment and an etching solution with the temperature of 38-42 ℃; s5, fading protection ink: placing the etched cover plate glass raw material in an alkaline solution for de-protecting ink treatment; s6, cleaning: carrying out full-automatic ultrasonic cleaning on the cover plate glass raw material after the protective ink is removed; s7, tempering: tempering the cleaned cover plate glass raw material; s8, silk screen printing: carrying out silk-screen printing treatment on the toughened cover plate glass raw material by using a silk-screen printing machine; s9, coating: and carrying out film coating treatment on the cover plate glass raw material to finish the cover plate glass processing. The invention is suitable for the cover plate glass with more and more complex structure and higher performance requirement.
Description
Technical Field
The invention relates to the technical field of glass manufacturing processes, in particular to a method for preparing cover plate glass.
Background
After many years of development, the mobile phone has gradually changed into the attention and pursuit of the mobile phone photographing capability from the initial practical pursuit of the mobile phone performance. In the course of increasing the demand for the photographing capability of mobile phones, the number of cameras of mobile phones is increasing, especially in current middle and high-end mobile phones.
Meanwhile, cover glass with multiple cameras is continuously developed for being matched with a mobile phone with multiple cameras. At present, the structure of the cover glass with multiple cameras is more and more complex, and the performance requirement is more and more high, however, the existing cover glass preparation process is not suitable any more.
Disclosure of Invention
In view of the above situation, the present invention provides a method for manufacturing cover glass, which is suitable for cover glass with more and more complex structure and higher performance requirement.
A method for preparing cover glass comprises the following steps:
s1, screen printing protective ink: silk-printing a layer of acid-resistant protective ink on both sides of the cover plate glass raw material, and curing the acid-resistant protective ink;
s2, cutting: cutting the cover plate glass raw material with acid-resistant protective ink silk-screened on both sides by a cutting machine to be cut into a plurality of cover plate glass raw materials to be processed with preset sizes;
s3, CNC machining: placing a cover plate glass raw material to be processed on a CNC machine tool for CNC processing and forming;
s4, etching: etching the cover plate glass raw material which is machined and molded by CNC for 4-7 min by using etching equipment and an etching solution with the temperature of 38-42 ℃, and cleaning the etched cover plate glass raw material;
s5, fading protection ink: placing the etched cover plate glass raw material in an alkaline solution for de-protecting ink treatment;
s6, cleaning: carrying out full-automatic ultrasonic cleaning on the cover plate glass raw material after the protective ink is removed;
s7, tempering: tempering the cleaned cover plate glass raw material;
s8, silk screen printing: carrying out silk-screen printing treatment on the toughened cover plate glass raw material by using a silk-screen printing machine;
s9, coating: and carrying out film coating treatment on the cover plate glass raw material to finish the cover plate glass processing.
The etching equipment in the step S4 comprises a hot water tank, an etching tank, a containing basket, a servo motor and a heater, wherein the etching tank and the heater are fixedly arranged in the hot water tank, one end of the servo motor is connected with the containing basket, and the servo motor can drive the containing basket to be arranged in the etching tank to move.
Wherein, the step S4 specifically includes:
s41, respectively containing clean water and etching solution in the hot water tank and the etching tank, wherein the clean water surface in the hot water tank is lower than the top surface of the etching tank;
s42, heating the clean water in the hot water tank through the heater to enable the temperature of the etching solution in the etching tank to reach 38-42 ℃;
s43, placing the cover plate glass raw material which is processed and molded by CNC into the containing basket, and immersing the containing basket into the etching solution of the etching tank through the servo motor;
s44, starting the servo motor, and driving the containing basket to rotate at a constant speed for 4-7 min in the etching solution of the etching tank at a rotating speed of 500r/min through the servo motor;
and S45, taking the containing basket away from the etching tank through the servo motor, and cleaning the etched cover plate glass raw material.
Wherein, the step S1 specifically includes:
s11, screen-printing a layer of acid-resistant protective ink with the thickness of 14-16 um on one surface of the cover plate glass raw material by using a screen printing machine, and performing surface drying on the acid-resistant protective ink by using a tunnel furnace;
s12, silk-screen printing a layer of acid-resistant protective ink with the thickness of 14-16 um on the other side of the cover plate glass raw material by using a silk-screen printing machine, and performing surface drying on the acid-resistant protective ink by using a tunnel furnace;
s13, silk-screen printing a layer of acid-resistant protective printing ink with the thickness of 14-16 um on both sides of the cover plate glass raw material;
and S14, curing the acid-resistant protective ink on the two sides of the cover glass raw material by using a vertical oven.
Wherein after the step S7, the method further comprises: and soaking the toughened cover plate glass raw material in clear water for 30min, and then cleaning by ultrasonic waves.
Wherein after the step S8, the method further comprises: and coloring the cover plate glass raw material after silk screen printing.
Wherein the coloring treatment specifically comprises the following steps:
s81, NCVM: carrying out color film plating treatment on the cover plate glass raw material after silk screen printing by adopting an NCVM (non-contact vacuum metallization) process;
s82, secondary silk-screen printing: carrying out bottom surface silk-screen printing treatment on the cover plate glass raw material behind the NCVM, and carrying out ink curing;
s83, deplating: soaking the cover plate glass raw material subjected to secondary screen printing in a deplating solution with the concentration of 18-20% and the temperature of 57 +/-2 ℃ for 3min, taking the deplated cover plate glass raw material out of the deplating solution, and washing away the deplating solution on the surface by using clear water;
s84, cleaning: and cleaning by adopting full-automatic ultrasonic waves.
Wherein, the step S9 specifically includes:
s91, AR coating: carrying out AR coating film transmission increasing treatment on the cover plate glass raw material;
s92, AF coating: and carrying out AF coating treatment on the cover plate glass raw material after AR coating to finish the cover plate glass processing.
Wherein, after step S9, the method further comprises:
s10, warehousing: and (4) detecting the performance and the appearance of the coated cover plate glass, and packaging and warehousing qualified products.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts the chemical polishing principle and carries out a series of process treatments such as etching and the like on the cover plate glass raw material, thereby not only effectively improving the phenomenon of bad sand edge of the camera cover plate glass product and obtaining the performance of freely falling balls from 30cm of a 9g steel ball at a through hole with the diameter of 1.0mm without breaking, but also improving the transmittance of visible light, and being more suitable for multi-camera cover plate glass with more and more complex structure and higher performance requirement.
Drawings
Fig. 1 is a flowchart of a method for manufacturing a cover glass according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides a method for manufacturing cover glass, which specifically includes steps S1 to S10:
s1, screen printing protective ink: and (3) silk-screening a layer of acid-resistant protective printing ink on both sides of the cover plate glass raw material, and curing the acid-resistant protective printing ink to ensure that etching liquid cannot permeate the surface of the product to cause poor etching.
Specifically, the step of printing the protective ink by silk screen printing comprises the following steps:
s11, screen-printing a layer of acid-resistant protective ink with the thickness of 14-16 um on one surface of a cover plate glass raw material by using a screen printing machine provided with a 200-mesh screen printing plate, and performing surface drying on the acid-resistant protective ink by using a tunnel furnace, wherein the temperature of the tunnel furnace is 170 +/-5 ℃, and the surface drying time is 6-8 min;
s12, screen-printing a layer of acid-resistant protective ink with the thickness of 14-16 um on the other surface of the cover plate glass raw material by using a screen printing machine provided with a 200-mesh screen printing plate, and performing surface drying on the acid-resistant protective ink by using a tunnel furnace, wherein the temperature of the tunnel furnace is 170 +/-5 ℃, and the surface drying time is 6-8 min;
s13, silk-screen printing a layer of acid-resistant protective printing ink with the thickness of 14-16 um on both sides of the cover plate glass raw material by using a silk-screen printing machine provided with a 200-mesh screen plate;
and S14, curing the acid-resistant protective ink on the two sides of the cover plate glass raw material by adopting a vertical oven, wherein the oven temperature is 70 +/-5 ℃, and the surface drying time is 50 +/-5 min.
S2, cutting: and cutting the cover plate glass raw material with acid-resistant protective ink silk-screened on both sides by using a cutting machine so as to cut the cover plate glass raw material into a plurality of cover plate glass raw materials to be processed with preset sizes.
S3, CNC machining: and placing the cover plate glass raw material to be processed on a CNC machine tool for CNC processing and forming.
Wherein, step S3 specifically includes:
s31, swinging: sequentially placing a plurality of cover plate glass raw materials to be processed in a tray placing jig;
s32, feeding: fixing a balance plate jig cleaned by an air gun on a CNC machine tool through vacuum adsorption;
s33, CNC machining: starting the CNC machine tool, and automatically carrying out CNC machining forming on the edges and the through holes of the cover plate glass raw materials in sequence;
s34, blanking: and (5) closing the vacuum source, taking down the balance tool and the cover plate glass raw material, and finishing the CNC machining.
S4, etching: etching the cover plate glass raw material after CNC machining by using etching equipment and etching liquid, and cleaning the etched cover plate glass raw material.
By the etching process, slight small sand edges generated at the edges of the cover plate glass raw material after CNC machining forming can be dissolved at the edges which are not protected by the printing ink on the cover plate glass raw material through the etching liquid, so that the passivation and smoothing effect is achieved, the phenomenon of the slight small sand edges is effectively improved, the product yield and performance can be improved, and the product appearance can be beautified.
Specifically, the etching equipment comprises a hot water tank, an etching tank, a containing basket, a servo motor and a heater. The etching bath and the heater are fixedly arranged in the hot water bath, one end of the servo motor is connected with the containing basket through a hook, and the servo motor can drive the containing basket to be arranged in the etching bath for movement.
Meanwhile, the etching step specifically comprises the following steps:
s41, respectively containing clean water and etching solution in the hot water tank and the etching tank, wherein the clean water surface in the hot water tank is lower than the top surface of the etching tank;
s42, heating the clean water in the hot water tank through the heater to enable the temperature of the etching solution in the etching tank to reach 38-42 ℃;
s43, placing the cover plate glass raw material which is processed and molded by CNC into the containing basket, and immersing the containing basket into the etching solution of the etching tank through the servo motor;
s44, starting the servo motor, and driving the containing basket to rotate at a constant speed for 4-7 min in the etching solution of the etching tank at a rotating speed of 500r/min through the servo motor;
and S45, taking the containing basket away from the etching tank through the servo motor, and cleaning the etched cover plate glass raw material with clean water.
S5, fading protection ink: and (4) placing the etched cover plate glass raw material in an alkaline solution for de-protecting ink treatment.
Specifically, the step of fading the protective ink comprises the following steps:
s51, placing the etched cover plate glass raw material in a cleaning frame, and soaking the cover plate glass raw material in a sodium hydroxide solution with the concentration of 3% -4% and the temperature of 75 +/-3 ℃ for 2-3 min.
S52, taking the cover plate glass raw material out of the sodium hydroxide solution, and washing away the sodium hydroxide solution on the surface by using clear water;
s53, soaking the cover plate glass raw material in a citric acid solution for 2 min;
s54, taking the cover plate glass raw material out of the citric acid solution, and washing away the citric acid solution on the surface by using clean water;
and S55, cleaning the cover plate glass raw material by using a single-groove ultrasonic cleaning tank for 1-2 min.
S6, cleaning: and carrying out full-automatic ultrasonic cleaning on the cover plate glass raw material after the protective ink is removed.
Specifically, the full-automatic ultrasonic cleaning process comprises the following steps: loading → first water tank → second water tank → third water tank → spray tank → first pure water tank → second pure water tank → third pure water tank → fourth pure water tank → slow-pull tank → first drying tank → second drying tank → third drying tank → unloading. Wherein, the concentration of the liquid medicine is 2 percent to 3 percent, the temperature of the liquid medicine tank is 50 +/-5 ℃, the general vibrator is 0.6 +/-0.1A, the cleaning time is 120s, the drying temperature is 120 +/-20 ℃, and the drying time is 150 +/-30 s.
S7, tempering: and tempering the cleaned cover plate glass raw material to ensure that the cover plate glass raw material has the performance of freely falling and breaking 9g of steel balls from 30cm at a through hole with the diameter of 1.0 mm.
Specifically, the tempered cover plate glass raw material is soaked in clear water for 30min to soak potassium nitrate on the surface of the cover plate glass raw material, and then is cleaned by ultrasonic waves.
S8, silk screen printing: and (4) carrying out silk-screen printing treatment on the toughened cover plate glass raw material by adopting a silk-screen printing machine.
Specifically, after the step S8, the method further includes:
coloring: and coloring the cover plate glass raw material after silk screen printing.
Specifically, the coloring step includes the steps of:
s81, NCVM: carrying out color film plating treatment on the cover plate glass raw material after silk screen printing by adopting an NCVM (non-contact vacuum metallization) process;
s82, secondary silk-screen printing: carrying out bottom surface silk-screen printing treatment on the cover plate glass raw material behind the NCVM, and baking and curing printing ink;
s83, deplating: placing the cover plate glass raw material subjected to secondary screen printing in a cleaning frame, soaking the cover plate glass raw material in a deplating solution with the concentration of 18-20% and the temperature of 57 +/-2 ℃ for 3min, taking the deplated cover plate glass raw material out of the deplating solution, and washing the deplating solution on the surface by using clear water.
S84, cleaning: the full-automatic ultrasonic cleaning process comprises the following steps: loading → drug solution tank → second drug solution tank → third drug solution tank → spray tank → first purified water tank → second purified water tank → third purified water tank → fourth purified water tank → slow-pulling tank → first drying tank → second drying tank → third drying tank → unloading. Wherein, the concentration of the liquid medicine is 4 percent to 8 percent, the temperature of the liquid medicine tank is 60 +/-3 ℃, the general vibrator is 1.0 +/-0.1A, the cleaning time is 160s, the drying temperature is 140 +/-20 ℃, and the drying time is 160 +/-30 s.
S9, coating: and carrying out film coating treatment on the cover plate glass raw material to finish the cover plate glass processing.
Specifically, the coating step comprises the following steps:
s91, AR coating: carrying out AR coating film transmission increasing treatment on the cover plate glass raw material;
s92, AF coating: and carrying out AF coating treatment on the cover plate glass raw material after AR coating to finish the cover plate glass processing.
S10, warehousing: and (4) detecting the performance and the appearance of the coated cover plate glass, and packaging qualified products and warehousing.
According to the preparation method of the cover plate glass provided by the embodiment, a chemical polishing principle is adopted, and a series of process treatments such as etching and the like are carried out on a cover plate glass raw material, so that the phenomenon of bad sand edges of a camera cover plate glass product can be effectively improved, the performance that a 9g steel ball freely falls from a position of 30cm and is not broken at a through hole with the diameter of 1.0mm can be obtained, the transmittance of visible light can be improved, and the method is more suitable for multi-shot cover plate glass with more and more complex structure and higher performance requirement.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The preparation method of the cover plate glass is characterized by comprising the following steps:
s1, screen printing protective ink: silk-printing a layer of acid-resistant protective ink on both sides of the cover plate glass raw material, and curing the acid-resistant protective ink;
s2, cutting: cutting the cover plate glass raw material with acid-resistant protective ink silk-screened on both sides by a cutting machine to be cut into a plurality of cover plate glass raw materials to be processed with preset sizes;
s3, CNC machining: placing a cover plate glass raw material to be processed on a CNC machine tool for CNC processing and forming;
s4, etching: etching the cover plate glass raw material which is machined and molded by CNC for 4-7 min by using etching equipment and an etching solution with the temperature of 38-42 ℃, and cleaning the etched cover plate glass raw material;
s5, fading protection ink: placing the etched cover plate glass raw material in an alkaline solution for de-protecting ink treatment;
s6, cleaning: carrying out full-automatic ultrasonic cleaning on the cover plate glass raw material after the protective ink is removed;
s7, tempering: tempering the cleaned cover plate glass raw material;
s8, silk screen printing: carrying out silk-screen printing treatment on the toughened cover plate glass raw material by using a silk-screen printing machine;
s9, coating: and carrying out film coating treatment on the cover plate glass raw material to finish the cover plate glass processing.
2. The method for manufacturing a cover glass according to claim 1, wherein the etching apparatus in step S4 comprises a hot water tank, an etching bath, a holding basket, a servo motor and a heater, the etching bath and the heater are fixed in the hot water tank, one end of the servo motor is connected to the holding basket, and the servo motor can drive the holding basket to move in the etching bath.
3. The method for producing a cover glass according to claim 2, wherein the step S4 specifically includes:
s41, respectively containing clean water and etching solution in the hot water tank and the etching tank, wherein the clean water surface in the hot water tank is lower than the top surface of the etching tank;
s42, heating the clean water in the hot water tank through the heater to enable the temperature of the etching solution in the etching tank to reach 38-42 ℃;
s43, placing the cover plate glass raw material which is processed and molded by CNC into the containing basket, and immersing the containing basket into the etching solution of the etching tank through the servo motor;
s44, starting the servo motor, and driving the containing basket to rotate at a constant speed for 4-7 min in the etching solution of the etching tank at a rotating speed of 500r/min through the servo motor;
and S45, taking the containing basket away from the etching tank through the servo motor, and cleaning the etched cover plate glass raw material.
4. The method for producing a cover glass according to claim 1, wherein the step S1 specifically includes:
s11, screen-printing a layer of acid-resistant protective ink with the thickness of 14-16 um on one surface of the cover plate glass raw material by using a screen printing machine, and performing surface drying on the acid-resistant protective ink by using a tunnel furnace;
s12, silk-screen printing a layer of acid-resistant protective ink with the thickness of 14-16 um on the other side of the cover plate glass raw material by using a silk-screen printing machine, and performing surface drying on the acid-resistant protective ink by using a tunnel furnace;
s13, silk-screen printing a layer of acid-resistant protective printing ink with the thickness of 14-16 um on both sides of the cover plate glass raw material;
and S14, curing the acid-resistant protective ink on the two sides of the cover glass raw material by using a vertical oven.
5. The method for producing a cover glass according to claim 1, wherein after the step S7, the method further comprises: and soaking the toughened cover plate glass raw material in clear water for 30min, and then cleaning by ultrasonic waves.
6. The method for producing a cover glass according to claim 1, wherein after the step S8, the method further comprises: and coloring the cover plate glass raw material after silk screen printing.
7. The method for producing a cover glass according to claim 6, wherein the step of coloring treatment specifically includes:
s81, NCVM: carrying out color film plating treatment on the cover plate glass raw material after silk screen printing by adopting an NCVM (non-contact vacuum metallization) process;
s82, secondary silk-screen printing: carrying out bottom surface silk-screen printing treatment on the cover plate glass raw material behind the NCVM, and carrying out ink curing;
s83, deplating: soaking the cover plate glass raw material subjected to secondary screen printing in a deplating solution with the concentration of 18-20% and the temperature of 57 +/-2 ℃ for 3min, taking the deplated cover plate glass raw material out of the deplating solution, and washing away the deplating solution on the surface by using clear water;
s84, cleaning: and cleaning by adopting full-automatic ultrasonic waves.
8. The method for producing a cover glass according to claim 7, wherein the step S9 specifically includes:
s91, AR coating: carrying out AR coating film transmission increasing treatment on the cover plate glass raw material;
s92, AF coating: and carrying out AF coating treatment on the cover plate glass raw material after AR coating to finish the cover plate glass processing.
9. The method for producing a cover glass according to claim 1, wherein after step S9, the method further comprises:
s10, warehousing: and (4) detecting the performance and the appearance of the coated cover plate glass, and packaging and warehousing qualified products.
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| CN202111076445.4A CN113772962A (en) | 2021-09-14 | 2021-09-14 | Preparation method of cover plate glass |
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| CN202111076445.4A CN113772962A (en) | 2021-09-14 | 2021-09-14 | Preparation method of cover plate glass |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406804A (en) * | 2021-12-31 | 2022-04-29 | 广东江粉高科技产业园有限公司 | Machining device and method for improving strength of glass cover plate |
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| CN114406804A (en) * | 2021-12-31 | 2022-04-29 | 广东江粉高科技产业园有限公司 | Machining device and method for improving strength of glass cover plate |
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| CN114455821B (en) * | 2022-01-20 | 2023-12-08 | 抚州联创恒泰光电有限公司 | Cover plate glass preparation method |
| CN114734735A (en) * | 2022-03-18 | 2022-07-12 | 合肥金龙浩科技有限公司 | Method for processing glass rear cover with film pasting effect |
| CN114671624A (en) * | 2022-05-09 | 2022-06-28 | 芜湖东信光电科技有限公司 | Treatment process of flexible glass with high impact resistance |
| CN114751652A (en) * | 2022-05-27 | 2022-07-15 | 东莞市顺玺电子科技有限公司 | Processing technology of 2.5D AG glass panel |
| 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 |
| CN117383840A (en) * | 2023-10-18 | 2024-01-12 | 东莞市友辉光电科技有限公司 | Preparation method for vehicle-mounted display anti-dazzle cover plate |
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Application publication date: 20211210 |