CN112062480A - Surface strengthening treatment method for ultrathin large-plate-surface glass - Google Patents
Surface strengthening treatment method for ultrathin large-plate-surface glass Download PDFInfo
- Publication number
- CN112062480A CN112062480A CN202010951174.1A CN202010951174A CN112062480A CN 112062480 A CN112062480 A CN 112062480A CN 202010951174 A CN202010951174 A CN 202010951174A CN 112062480 A CN112062480 A CN 112062480A
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- Prior art keywords
- glass
- plate
- ultra
- molten salt
- strengthening treatment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 71
- 239000011521 glass Substances 0.000 title claims abstract description 67
- 238000005728 strengthening Methods 0.000 title claims abstract description 20
- 150000003839 salts Chemical class 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 229910001414 potassium ion Inorganic materials 0.000 claims abstract description 23
- 238000011033 desalting Methods 0.000 claims abstract description 11
- 239000005357 flat glass Substances 0.000 claims abstract description 11
- 238000005496 tempering Methods 0.000 claims abstract description 10
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 7
- 229910001415 sodium ion Inorganic materials 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 239000012459 cleaning agent Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 abstract description 9
- 238000005520 cutting process Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 235000013358 Solanum torvum Nutrition 0.000 description 1
- 240000002072 Solanum torvum Species 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B11/00—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
- B08B11/04—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention discloses a surface strengthening treatment method of ultrathin large-plate-surface glass, which comprises a glass surface cleaning treatment method before tempering; an anti-crushing method for a toughened bearing substrate frame; a molten salt pool three-dimensional omnibearing intelligent temperature control method; a method for uniformly replacing sodium and potassium ions on the surface of the ultrathin large-plate-surface glass and controlling the density of the potassium ions in a molten salt pool; a method for desalting the surface of ultra-thin large-plate glass after toughening. The invention solves the technical problems of uneven surface strengthening treatment, easy breaking and difficult cutting of the ultrathin large-plate-surface glass, ensures that the breaking rate of the ultrathin large-plate-surface glass in the toughening process is less than three thousandth, the toughened particle size is more uniform, and the cuttability of the ultrathin large-plate-surface toughened glass is realized.
Description
Technical Field
The invention belongs to the technical field of glass deep processing, and particularly relates to a surface strengthening treatment method for ultrathin large-plate-surface glass.
Background
With the rapid development of electronic science and technology and the wide application of electronic glass display panels in the work and life of people, as the fragility of glass panels and manufacturers begin to perform strengthening treatment on the surfaces of electronic glass display panels, the strengthening treatment specification of electronic glass surfaces is generally no more than 550x650, and with the rapid increase of the market demand of electronic glass display panels with ultra-thin and ultra-large panel surfaces, a surface strengthening treatment technology of the ultra-thin and large panel surfaces with the specification of 1220x1830 and above is urgently needed.
Disclosure of Invention
In order to overcome the problems, the invention provides a surface strengthening treatment method of ultra-thin large-plate glass, which solves the technical problems of uneven surface strengthening treatment, easy breaking and difficult cutting of the ultra-thin large-plate glass through the technical method, so that the breakage rate of the ultra-thin large-plate glass in the toughening process is lower than three thousandth, the toughening grain size is more uniform, and the cuttability of the ultra-thin large-plate toughened glass is realized.
The technical scheme adopted by the invention is as follows:
a surface strengthening treatment method for ultra-thin large-plate glass comprises a surface cleaning treatment method for glass before tempering; an anti-crushing method for a toughened bearing substrate frame; a molten salt pool three-dimensional omnibearing intelligent temperature control method; a method for uniformly replacing sodium and potassium ions on the surface of the ultrathin large-plate-surface glass and controlling the density of the potassium ions in a molten salt pool; a method for desalting the surface of ultra-thin large-plate glass after toughening.
The method for cleaning the glass surface before tempering comprises the steps of cleaning the surface of the glass by using a special cleaning agent for glass in a disc brushing mode, removing dirt, cleaning by using a plurality of groups of composite rolling brushes, spraying deionized water at high pressure in a double-channel mode and removing water by strong wind; the vertical washing and decontamination of the surface plate brush by adopting the special cleaning agent for the glass comprises two rows of vertical soft bristle circular brushes, wherein when the surface of the ultrathin large-plate-surface glass is uniformly sprayed with a cleaning agent diluent and moves to the vertical soft bristle circular brushes, the circular brush is linked by a speed reduction motor and grinds the upper surface and the lower surface of the passing glass at a rotary grinding speed of 680 r/min to remove oil stains and surface attachments.
The anti-crushing method of the toughened bearing substrate frame comprises the steps of bearing substrate frame glass anti-collision material selection, structural design and sinking damping design of ultrathin large-plate-surface glass; the glass anti-collision material of the bearing substrate frame is preferably a high-temperature-resistant and corrosion-resistant 316 stainless steel material; the glass anti-collision structure of the bearing substrate frame comprises high-temperature-resistant and corrosion-resistant 316 stainless steel 80-mesh and 120-mesh gauze, and the anti-collision structure at the upper end is designed into a 120-mesh stainless steel double-layer spheroid and is embedded at the lower ends of the spaced broken bolts of the plates; the sinking damping structure of the ultrathin large-plate-surface glass comprises two layers of 80-mesh and 120-mesh 316 stainless steel gauze rolls arranged on a toughened bearing substrate frame glass base, wherein the 80-mesh gauze roll is fixed on the bearing substrate frame glass base, and the 120-mesh gauze roll is fixed on the 80-mesh gauze roll.
The molten salt pool three-dimensional all-dimensional temperature control method comprises molten salt pool heating source power arrangement, thermocouple temperature sensing arrangement and an intelligent temperature control system; the molten salt pool heating source power arrangement and the thermocouple temperature sensing arrangement are that 16 heating sources and 16 temperature sensing thermocouples are uniformly arranged at the bottom of the molten salt pool, the vertical surfaces around the molten salt pool and the surface of a cover plate at the top of the pool; the intelligent temperature control system comprises a three-dimensional omnibearing temperature sensing thermocouple arrangement, a temperature signal feedback processing system and a sodium-potassium ion replacement process temperature setting.
The method for uniformly replacing the sodium and potassium ions on the surface of the ultrathin large-plate-surface glass mainly comprises a molten salt pool potassium ion density distribution and control method; the density distribution of the potassium ions in the molten salt pool is the local density of the potassium ions in the molten salt pool liquid salt body; the molten salt pool potassium ion density control method is to regulate and control local area temperature through measurement data fed back by a metal ion probe.
The method for desalting the surface of the glass after the ultra-thin large plate surface is tempered mainly comprises a double-sided clear water spraying method, a warm water soaking method, a large ultrasonic surface oscillation method and a multi-group composite rolling brush cleaning method; the double-sided clear water spraying comprises desalting clear water spraying on the first surface of the toughened glass substrate; the warm water soaking comprises the steps of hoisting the toughened glass substrate sprayed by clear water and the bearing substrate frame into a warm water tank together for soaking and desalting; the large ultrasonic surface oscillation comprises an ultrasonic pool and an ultrasonic oscillator; cleaning multiple groups of composite rolling brushes and cleaning the glass surface before tempering, namely, taking out the tempered glass substrate subjected to ultrasonic surface treatment and finally cleaning the multiple groups of composite rolling brushes.
The invention has the following advantages:
the invention provides a surface strengthening treatment method of ultrathin large-plate-surface glass, which comprises a glass surface cleaning treatment method before tempering; an anti-crushing method for a toughened bearing substrate frame; a molten salt pool three-dimensional omnibearing intelligent temperature control method; a method for uniformly replacing sodium and potassium ions on the surface of the ultrathin large-plate-surface glass and controlling the density of the potassium ions in a molten salt pool; the technical problems of uneven surface strengthening treatment, easy breakage and difficult cutting of the ultra-thin large-plate glass are solved by the method, the breakage rate of the ultra-thin large-plate glass in the toughening process is lower than three thousandth, the toughened particle size is more uniform, and the cuttability of the ultra-thin large-plate toughened glass is realized.
Detailed Description
The present invention will be further described below, but the present invention is not limited to these.
Examples
A surface strengthening treatment method for ultra-thin large-plate glass comprises a surface cleaning treatment method for glass before tempering; an anti-crushing method for a toughened bearing substrate frame; a molten salt pool three-dimensional omnibearing intelligent temperature control method; a method for uniformly replacing sodium and potassium ions on the surface of the ultrathin large-plate-surface glass and controlling the density of the potassium ions in a molten salt pool; a method for desalting the surface of ultra-thin large-plate glass after toughening.
The method for cleaning the glass surface before tempering comprises the steps of cleaning the surface of the glass by using a special cleaning agent for glass in a disc brushing mode, removing dirt, cleaning by using a plurality of groups of composite rolling brushes, spraying deionized water at high pressure in a double-channel mode and removing water by strong wind; the vertical washing and decontamination of the surface disc brush by adopting the special glass cleaning agent comprises two rows of vertical soft bristle circular brushes, wherein each row of vertical soft bristle circular brushes is arranged in a mode of one centimeter at intervals, the front row and the rear row of vertical soft bristle circular brushes are arranged in a mode of Chinese character 'pin', the adjusting gap is set between 0mm and 3mm by the tip-to-tip arrangement of the soft bristles of the upper and lower groups of disc brushes, and the length of the soft bristles of the disc brushes is 30 mm; when the surface of the ultrathin large-plate-surface glass is uniformly sprayed with a cleaning agent diluent and moves to a vertical soft-bristle disc brush, the upper surface and the lower surface of the passing glass are ground at a 680 r/min rotary grinding speed in a linkage manner by a speed reduction motor to remove oil stains and surface attachments.
The tempered bearing substrate frame anti-crushing method comprises bearing substrate frame glass anti-collision material selection, structural design and sinking damping design of ultrathin large-plate-surface glass, wherein the bearing substrate frame glass anti-collision material selection is preferably high-temperature-resistant and corrosion-resistant 316 stainless steel material, the bearing substrate frame glass anti-collision structure comprises high-temperature-resistant and corrosion-resistant 316 stainless steel 80-mesh and 120-mesh gauze, and the upper-end anti-collision structure is designed into a 120-mesh stainless steel double-layer spheroid and is embedded at the lower end of a piece interval broken bolt; the sinking damping structure of the ultrathin large-plate-surface glass comprises two layers of 80-mesh and 120-mesh 316 stainless steel gauze rolls arranged on a toughened bearing substrate frame glass base, wherein the 80-mesh gauze roll is fixed on the bearing substrate frame glass base, and the 120-mesh gauze roll is fixed on the 80-mesh gauze roll.
The three-dimensional omnibearing temperature control method for the molten salt pool comprises a molten salt pool heating source power arrangement, a thermocouple temperature sensing arrangement and an intelligent temperature control system, wherein the molten salt pool heating source power arrangement and the thermocouple temperature sensing arrangement are that 16 heating sources and 16 temperature sensing thermocouples are uniformly arranged at the bottom of the molten salt pool, the vertical surfaces around the molten salt pool and the surface of a pool top cover plate; the intelligent temperature control system comprises a three-dimensional omnibearing temperature sensing thermocouple arrangement, a temperature signal feedback processing system and a sodium-potassium ion replacement process temperature setting.
The method mainly comprises a molten salt pool potassium ion density distribution and control method, wherein the molten salt pool potassium ion density distribution is the local density of potassium ions in a molten salt pool liquid salt body, and the molten salt pool potassium ion density control method is used for carrying out local location temperature regulation and control through measurement data fed back by a metal ion probe.
The method for desalting the surface of the glass after the ultra-thin large plate surface is tempered mainly comprises a double-sided clear water spraying method, a warm water soaking method, a large ultrasonic surface oscillation method and a multi-group composite rolling brush cleaning method; the double-sided clear water spraying comprises desalting clear water spraying on the first surface of the toughened glass substrate; the warm water soaking comprises the steps of hoisting the toughened glass substrate sprayed by clear water and the bearing substrate frame into a warm water tank together for soaking and desalting; the large ultrasonic surface oscillation comprises an ultrasonic pool and an ultrasonic oscillator; cleaning multiple groups of composite rolling brushes and cleaning the glass surface before tempering, namely, taking out the tempered glass substrate subjected to ultrasonic surface treatment and finally cleaning the multiple groups of composite rolling brushes.
It is 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.
Claims (6)
1. A surface strengthening treatment method of ultrathin large-plate-surface glass is characterized by comprising the following steps: comprises a glass surface cleaning treatment method before tempering; an anti-crushing method for a toughened bearing substrate frame; a molten salt pool three-dimensional omnibearing intelligent temperature control method; a method for uniformly replacing sodium and potassium ions on the surface of the ultrathin large-plate-surface glass and controlling the density of the potassium ions in a molten salt pool; a method for desalting the surface of ultra-thin large-plate glass after toughening.
2. The surface strengthening treatment method of the ultra-thin large-plate-surface glass according to claim 1, characterized in that: the method for cleaning the surface of the glass before tempering comprises the steps of cleaning the surface of the glass by using a special cleaning agent for the glass in a disc brushing mode, removing dirt, cleaning by using a plurality of groups of composite rolling brushes, spraying deionized water at high pressure in a double-channel mode and removing water by strong wind.
3. The surface strengthening treatment method of the ultra-thin large-plate-surface glass according to claim 1, characterized in that: the anti-crushing method of the toughened bearing substrate frame comprises the steps of selection of anti-collision materials of the glass of the bearing substrate frame, structural design and sinking damping design of the ultra-thin large-plate-surface glass.
4. The surface strengthening treatment method of the ultra-thin large-plate-surface glass according to claim 1, characterized in that: the three-dimensional omnibearing temperature control method for the molten salt pool comprises molten salt pool heating source power arrangement, thermocouple temperature sensing arrangement and an intelligent temperature control system.
5. The surface strengthening treatment method of the ultra-thin large-plate-surface glass according to claim 1, characterized in that: the method for uniformly replacing the sodium and potassium ions on the surface of the ultrathin large-plate-surface glass mainly comprises a molten salt pool potassium ion density distribution and control method.
6. The surface strengthening treatment method of the ultra-thin large-plate-surface glass according to claim 1, characterized in that: the method for desalting the surface of the glass after the ultra-thin large plate surface is tempered mainly comprises the steps of double-sided clear water spraying, warm water soaking, large-scale ultrasonic surface oscillation and multi-group composite rolling brush cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010951174.1A CN112062480A (en) | 2020-09-11 | 2020-09-11 | Surface strengthening treatment method for ultrathin large-plate-surface glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010951174.1A CN112062480A (en) | 2020-09-11 | 2020-09-11 | Surface strengthening treatment method for ultrathin large-plate-surface glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112062480A true CN112062480A (en) | 2020-12-11 |
Family
ID=73696150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010951174.1A Pending CN112062480A (en) | 2020-09-11 | 2020-09-11 | Surface strengthening treatment method for ultrathin large-plate-surface glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112062480A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030090005A1 (en) * | 2001-11-09 | 2003-05-15 | Nippon Sheet Glass Co., Ltd. | Chemical strengthening treatment unit for applying chemical strengthening treatment to glass substrates used in information recording media applications |
| US20150329406A1 (en) * | 2012-12-21 | 2015-11-19 | Nippon Electric Glass Co., Ltd. | Strengthened glass, strengthened glass plate, strengthened glass container, and glass for strengthening |
| WO2016037343A1 (en) * | 2014-09-12 | 2016-03-17 | Schott Glass Technologies (Suzhou) Co. Ltd. | Ultrathin chemically toughened glass article and method for producing such a glass article |
| CN105936589A (en) * | 2016-07-01 | 2016-09-14 | 广东拓捷科技股份有限公司 | Manufacturing method of ultrathin toughened glass and ultrathin, superlight, bendable and permanently antibacterial protection film prepared from ultrathin toughened glass |
| CN205676364U (en) * | 2016-06-06 | 2016-11-09 | 中国洛阳浮法玻璃集团有限责任公司 | A kind of chemical tempering ultra-thin glass tempering support |
| CN107056046A (en) * | 2017-03-23 | 2017-08-18 | 彩虹集团公司 | A kind of tempering sheet glass and preparation method thereof |
| WO2018062141A1 (en) * | 2016-09-30 | 2018-04-05 | 旭硝子株式会社 | Method for producing chemically toughened glass |
| CN108623140A (en) * | 2018-05-31 | 2018-10-09 | 福耀玻璃工业集团股份有限公司 | A kind of fused salt and its steel process for ultra-thin soda-lime glass chemical tempering |
| JP2019006615A (en) * | 2017-06-21 | 2019-01-17 | Ａｇｃ株式会社 | Manufacturing method of chemically strengthened glass |
| CN110436764A (en) * | 2019-08-07 | 2019-11-12 | 秦皇岛玻璃工业研究设计院有限公司 | A kind of ultra-thin glass chemical tempering equipment and toughening method |
-
2020
- 2020-09-11 CN CN202010951174.1A patent/CN112062480A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030090005A1 (en) * | 2001-11-09 | 2003-05-15 | Nippon Sheet Glass Co., Ltd. | Chemical strengthening treatment unit for applying chemical strengthening treatment to glass substrates used in information recording media applications |
| US20150329406A1 (en) * | 2012-12-21 | 2015-11-19 | Nippon Electric Glass Co., Ltd. | Strengthened glass, strengthened glass plate, strengthened glass container, and glass for strengthening |
| WO2016037343A1 (en) * | 2014-09-12 | 2016-03-17 | Schott Glass Technologies (Suzhou) Co. Ltd. | Ultrathin chemically toughened glass article and method for producing such a glass article |
| CN205676364U (en) * | 2016-06-06 | 2016-11-09 | 中国洛阳浮法玻璃集团有限责任公司 | A kind of chemical tempering ultra-thin glass tempering support |
| CN105936589A (en) * | 2016-07-01 | 2016-09-14 | 广东拓捷科技股份有限公司 | Manufacturing method of ultrathin toughened glass and ultrathin, superlight, bendable and permanently antibacterial protection film prepared from ultrathin toughened glass |
| WO2018062141A1 (en) * | 2016-09-30 | 2018-04-05 | 旭硝子株式会社 | Method for producing chemically toughened glass |
| CN107056046A (en) * | 2017-03-23 | 2017-08-18 | 彩虹集团公司 | A kind of tempering sheet glass and preparation method thereof |
| JP2019006615A (en) * | 2017-06-21 | 2019-01-17 | Ａｇｃ株式会社 | Manufacturing method of chemically strengthened glass |
| CN108623140A (en) * | 2018-05-31 | 2018-10-09 | 福耀玻璃工业集团股份有限公司 | A kind of fused salt and its steel process for ultra-thin soda-lime glass chemical tempering |
| CN110436764A (en) * | 2019-08-07 | 2019-11-12 | 秦皇岛玻璃工业研究设计院有限公司 | A kind of ultra-thin glass chemical tempering equipment and toughening method |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20201211 |