CN114920449A - Polishing-free 3D glass production process - Google Patents
Polishing-free 3D glass production process Download PDFInfo
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- CN114920449A CN114920449A CN202210597416.0A CN202210597416A CN114920449A CN 114920449 A CN114920449 A CN 114920449A CN 202210597416 A CN202210597416 A CN 202210597416A CN 114920449 A CN114920449 A CN 114920449A
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- glass
- treatment
- polishing
- hot bending
- free
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- 239000011521 glass Substances 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 238000013003 hot bending Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000003746 surface roughness Effects 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000007639 printing Methods 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007888 film coating Substances 0.000 abstract 1
- 238000009501 film coating Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 10
- 238000012545 processing Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 241001268993 Heterochrosis Species 0.000 description 1
- 230000003666 anti-fingerprint Effects 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
- 238000001125 extrusion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B1/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled three-dimensionally for making single sculptures or models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
-
- 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
- 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
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a polishing-free 3D glass production process, which comprises the following steps: s1, performing AG treatment on glass, then cutting, sequentially performing CNC (computer numerical control) shape treatment and figure engraving treatment, and performing hot bending treatment by using a mould with the surface roughness less than or equal to 0.03 Ra; and S2, sequentially carrying out secondary CNC, toughening, printing and film coating treatment on the glass subjected to the hot bending treatment to obtain the 3D glass. According to the invention, by adjusting the surface roughness of the mold, the AG-treated glass can not generate a die mark during hot bending, and concave and convex surface polishing is not needed, so that the process is saved, and the defects caused by polishing are reduced; and can still keep better anti-dazzle effect after hot bending.
Description
Technical Field
The invention relates to the technical field of 3D glass, in particular to a polishing-free 3D glass production process.
Background
The glass cover plate used by the digital product is divided into: 2D glass, 2.5D glass, and also 3D glass. The 2D glass is ordinary pure plane glass and does not have any arc design; 2.5D glass is planar in the middle, but the edges are arc-shaped; and 3D glass, whether the middle or the edge adopts an arc design.
3D glass has advantages such as frivolous, transparent clean, anti fingerprint, anti-dazzle, weatherability are good, not only can promote intelligent terminal product outward appearance novelty, can also bring outstanding touch-control and feel. With the change of aesthetic requirements of the consumer market on the appearance of the intelligent terminal product and the progress of the process technology, the 3D glass has gradually started to be applied to the process manufacturing of the intelligent terminal product. Besides a huge market on a middle-high-end smart phone, the 3D glass can be applied to wearable devices such as head-mounted VR devices, vehicle central control devices, portable instrument panels, smart bracelets and the like.
The AG Anti-dazzle glass (Anti-GlareGlass) product is prepared by special process treatment and is characterized in that the light reflecting surface of the original glass is changed into a matte diffuse reflecting surface. At present, the production process of AG type 3D glass is generally: glass raw material → cutting → CNC contour → Scanning Probe Microscope (SPM) carving → hot bending → secondary CNC → concave polishing → convex polishing → AG processing → tempering → printing → coating film → pasting → assembling → packaging; the AG treatment can be carried out only after concave and convex polishing is carried out to remove surface stamping marks, so that the process is complicated, poor polishing is easy to generate, and the 3D yield is reduced.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a polishing-free 3D glass production process, and the invention can ensure that the glass subjected to AG treatment does not generate a die mark during hot bending by adjusting the surface roughness of a mould, does not need to be polished by concave and convex surfaces, saves the process and reduces the defects caused by polishing; and can still keep better anti-dazzle effect after hot bending.
The invention provides a polishing-free 3D glass production process, which comprises the following steps:
s1, performing AG treatment on glass, then cutting, sequentially performing CNC (computer numerical control) shape treatment and figure engraving treatment, and performing hot bending treatment by using a mould with the surface roughness less than or equal to 0.03 Ra;
and S2, sequentially carrying out secondary CNC (computerized numerical control), toughening, printing and coating treatment on the glass subjected to the hot bending treatment to obtain the 3D glass.
Preferably, in S1, the surface roughness of the mold is 0.005, 0.01, 0.015, 0.02, 0.025 or 0.03 Ra.
Preferably, in S1, the surface roughness of the mold is 0.03 Ra.
The inventor researches and discovers that through adjusting the surface roughness of the mold, on one hand, the AG-treated glass does not generate a die mark during hot bending, and does not need to be polished by concave and convex surfaces, so that the process is saved, the bad caused by polishing is avoided, and the yield is improved; on the other hand, the glass subjected to AG treatment is subjected to hot bending treatment by selecting a mold with proper surface roughness, so that the damage to the surface rough structure of the AG glass can be avoided, and a good AG effect can be still kept after hot bending; in addition, the AG treatment is carried out firstly and then the hot bending is carried out, so that the problem that the AG treatment is not uniform easily caused by irregular glass shape after the hot bending in the old process (i.e. the hot bending is carried out firstly, the concave-convex surface is polished and the AG treatment is carried out) can be avoided.
The CNC contour processing means: and (4) carrying out CNC (computer numerical control) finish machining on the raw material subjected to the glass cutting to obtain the required size and shape.
The secondary CNC processing refers to: and performing CNC machining on a specific position (such as a camera position) of the hot bent glass to obtain a required size and shape.
Preferably, in S1, AG treatment is performed on one surface of the glass.
Preferably, in S1, the other side of the glass is graphically engraved.
In S1, the pattern engraving process may be performed using a scanning probe microscope.
Preferably, the convex surface of the 3D glass is AG-treated.
Preferably, the pressure of hot bending is 4..5-5.5MPa, the temperature of hot bending is 620-.
The 3D glass provided by the invention can be used in the fields of 3D mobile phone cover plates, notebook computers, vehicle-mounted screens and the like.
Has the beneficial effects that:
according to the invention, by adjusting the surface roughness of the mold, on one hand, the AG-treated glass does not generate a die mark during hot bending, and does not need to be polished by concave and convex surfaces, so that the process is saved, the cost is reduced, the bad polishing caused by polishing is avoided, and the yield is improved;
on the other hand, a mold with proper surface roughness is selected, so that damage to the rough structure of the surface of the AG glass due to extrusion of the mold is avoided when the AG-treated glass is subjected to hot bending, the anti-glare effect of the AG is reduced, a good AG effect is still kept after the AG glass is subjected to hot bending, and the yield is improved;
in addition, the AG treatment is carried out firstly and then the hot bending is carried out, so that the problem that the AG treatment is not uniform easily caused by irregular glass shape after the hot bending in the old process (i.e. the hot bending is carried out firstly, the concave-convex surface is polished and the AG treatment is carried out) can be avoided.
Detailed Description
Hereinafter, the technical solution of the present invention will be described in detail by specific examples, but these examples should be explicitly proposed for illustration, but should not be construed as limiting the scope of the present invention.
Example 1
A polishing-free 3D glass production process comprises the following steps:
s1, cleaning the glass, and performing AG etching on one surface of the glass;
then cutting the AG treated glass into 156mm multiplied by 73mm, and then carrying out CNC shape treatment; then, using a scanning probe microscope to carve the pattern on the other surface of the glass;
placing the carved glass into a hot bending die with the surface roughness of 0.03Ra (so that the convex surface of the 3D glass after being subjected to AG treatment), heating to 660 ℃ at the speed of 350 ℃/s for 138s, and cooling to room temperature in a gradient manner, wherein the hot bending pressure is 5 Mpa;
s2, carrying out secondary CNC (computerized numerical control) treatment on the glass subjected to the hot bending treatment, then carrying out toughening treatment in a toughening furnace, and then printing → coating → film pasting treatment to obtain the 3D glass.
Example 2
The mold had a surface roughness Ra of 0.015Ra, as in example 1.
Example 3
The mold had a surface roughness of 0.04Ra, as in example 1.
Comparative example 1
The 3D glass is prepared according to the traditional process, and the specific steps are as follows:
cleaning glass, cutting into 156mm multiplied by 73mm, and then carrying out CNC (computerized numerical control) shape processing; then, using a scanning probe microscope to carve the graph on the other surface of the glass;
placing the carved glass into a hot bending mould with the surface roughness of 0.03Ra (so that the concave surface of the 3D glass after being subjected to hot bending has a carved pattern), heating to 660 ℃ at the speed of 350 ℃/s for 138s, wherein the hot bending pressure is 5Mpa, and then cooling to room temperature in a gradient manner; carrying out secondary CNC (computerized numerical control) treatment on the glass subjected to the hot bending treatment, and then respectively carrying out polishing treatment on the concave surface and the convex surface of the glass in a polishing machine;
and performing AG etching on the convex surface of the glass, performing toughening treatment in a toughening furnace, and then printing → coating → pasting to obtain the 3D glass.
In the above examples 1 to 3 and comparative example 1, the process conditions of CNC profile processing, pattern engraving, secondary CNC processing, AG etching, tempering, printing, coating, and film pasting were the same, and the glass composition was the same.
The 3D glasses obtained in examples 1-3 and comparative example 1 were tested and the yields were counted, and the results are shown in Table 1.
The stamping and anti-glare detection method of the 3D glass comprises the following steps: visually observing the sample under the strong light condition, comparing the sample with a 3D glass standard sample required by a customer, recording the sample meeting the requirement of the 3D glass standard sample as a qualified product, and counting the number of glasses without the die marks; the qualified standard of the anti-dazzle effect is that the color is uniform, no heterochrosis exists, the requirement of a 3D glass standard sample is met, and the quantity of the glass with the qualified anti-dazzle effect is counted.
TABLE 1 test results
As can be seen from the table above, the 3D glass manufactured by the process disclosed by the invention has the advantages of higher non-stamping yield and anti-glare effect qualification rate, high yield, short process period and cost saving.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The polishing-free 3D glass production process is characterized by comprising the following steps:
s1, performing AG treatment on glass, then cutting, sequentially performing CNC (computerized numerical control) shape treatment and graphic engraving treatment, and performing hot bending treatment by using a mold with the surface roughness less than or equal to 0.03 Ra;
and S2, sequentially carrying out secondary CNC (computerized numerical control), toughening, printing and coating treatment on the glass subjected to the hot bending treatment to obtain the 3D glass.
2. The process for producing a non-polished 3D glass according to claim 1, wherein in S1, the surface roughness of the mold is 0.005, 0.01, 0.015, 0.02, 0.025 or 0.03 Ra.
3. The polishing-free 3D glass production process according to claim 1 or 2, wherein in S1, AG treatment is performed on one side of the glass.
4. The process for producing polishing-free 3D glass according to claim 3, wherein in S1, the other surface of the glass is engraved with a pattern.
5. The process for producing polishing-free 3D glass according to any one of claims 1 to 4, wherein the convex surface of the 3D glass is subjected to AG treatment.
6. The production process of polishing-free 3D glass as claimed in any one of claims 1-5, wherein the pressure of hot bending is 4..5-5.5MPa, the temperature of hot bending is 620-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210597416.0A CN114920449A (en) | 2022-05-30 | 2022-05-30 | Polishing-free 3D glass production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210597416.0A CN114920449A (en) | 2022-05-30 | 2022-05-30 | Polishing-free 3D glass production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114920449A true CN114920449A (en) | 2022-08-19 |
Family
ID=82812879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210597416.0A Pending CN114920449A (en) | 2022-05-30 | 2022-05-30 | Polishing-free 3D glass production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114920449A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586044A (en) * | 2017-09-07 | 2018-01-16 | 信利光电股份有限公司 | A kind of preparation method of anti-dazzle 3D glass |
| CN109437582A (en) * | 2018-12-03 | 2019-03-08 | 仙游县元生智汇科技有限公司 | A kind of production method of the 3D glass with anti-glare |
| CN113582520A (en) * | 2021-08-20 | 2021-11-02 | 万津实业(赤壁)有限公司 | Anti-dazzle glass cover plate and preparation method thereof |
| CN113772955A (en) * | 2021-09-14 | 2021-12-10 | Oppo广东移动通信有限公司 | Processing method, cover plate and electronic device |
| CN114195400A (en) * | 2021-12-17 | 2022-03-18 | 安徽精卓光显技术有限责任公司 | Production method of low-cost anti-dazzle 3D curved glass |
-
2022
- 2022-05-30 CN CN202210597416.0A patent/CN114920449A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586044A (en) * | 2017-09-07 | 2018-01-16 | 信利光电股份有限公司 | A kind of preparation method of anti-dazzle 3D glass |
| CN109437582A (en) * | 2018-12-03 | 2019-03-08 | 仙游县元生智汇科技有限公司 | A kind of production method of the 3D glass with anti-glare |
| CN113582520A (en) * | 2021-08-20 | 2021-11-02 | 万津实业(赤壁)有限公司 | Anti-dazzle glass cover plate and preparation method thereof |
| CN113772955A (en) * | 2021-09-14 | 2021-12-10 | Oppo广东移动通信有限公司 | Processing method, cover plate and electronic device |
| CN114195400A (en) * | 2021-12-17 | 2022-03-18 | 安徽精卓光显技术有限责任公司 | Production method of low-cost anti-dazzle 3D curved glass |
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Application publication date: 20220819 |