CN111747661B - 化学强化玻璃的制造方法、熔融盐组合物以及熔融盐组合物的寿命延长方法 - Google Patents
化学强化玻璃的制造方法、熔融盐组合物以及熔融盐组合物的寿命延长方法 Download PDFInfo
- Publication number
- CN111747661B CN111747661B CN202010221883.4A CN202010221883A CN111747661B CN 111747661 B CN111747661 B CN 111747661B CN 202010221883 A CN202010221883 A CN 202010221883A CN 111747661 B CN111747661 B CN 111747661B
- Authority
- CN
- China
- Prior art keywords
- molten salt
- salt composition
- nitrate
- glass
- chemically strengthened
- Prior art date
- 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.)
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- 150000003839 salts Chemical class 0.000 title claims abstract description 171
- 239000000203 mixture Substances 0.000 title claims abstract description 166
- 239000005345 chemically strengthened glass Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 96
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 60
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910052796 boron Inorganic materials 0.000 claims abstract description 54
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 38
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 32
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 30
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 30
- 239000004323 potassium nitrate Substances 0.000 claims abstract description 29
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 29
- 239000012535 impurity Substances 0.000 claims abstract description 27
- 238000005728 strengthening Methods 0.000 claims abstract description 18
- 238000003426 chemical strengthening reaction Methods 0.000 claims description 49
- -1 anion compound Chemical class 0.000 claims description 25
- 150000001450 anions Chemical class 0.000 claims description 10
- 150000001449 anionic compounds Chemical class 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000004115 Sodium Silicate Substances 0.000 claims description 8
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 8
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 229910052788 barium Inorganic materials 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 33
- 238000011282 treatment Methods 0.000 description 12
- 238000005342 ion exchange Methods 0.000 description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 8
- 239000004327 boric acid Substances 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- 230000006866 deterioration Effects 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 229910001415 sodium ion Inorganic materials 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 102100033973 Anaphase-promoting complex subunit 10 Human genes 0.000 description 4
- OAUWKHSGCCPXOD-UHFFFAOYSA-N DOC1 Natural products C1=CC(O)=C2C(CC(=O)NCCCCCNCCCNCCCNCCCN)=CNC2=C1 OAUWKHSGCCPXOD-UHFFFAOYSA-N 0.000 description 4
- 101000779315 Homo sapiens Anaphase-promoting complex subunit 10 Proteins 0.000 description 4
- 101000737813 Homo sapiens Cyclin-dependent kinase 2-associated protein 1 Proteins 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229910001413 alkali metal ion Inorganic materials 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 238000010348 incorporation Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- NLSCHDZTHVNDCP-UHFFFAOYSA-N caesium nitrate Chemical compound [Cs+].[O-][N+]([O-])=O NLSCHDZTHVNDCP-UHFFFAOYSA-N 0.000 description 2
- FLJPGEWQYJVDPF-UHFFFAOYSA-L caesium sulfate Chemical compound [Cs+].[Cs+].[O-]S([O-])(=O)=O FLJPGEWQYJVDPF-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000003280 down draw process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 102100035353 Cyclin-dependent kinase 2-associated protein 1 Human genes 0.000 description 1
- 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 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000005407 aluminoborosilicate glass Substances 0.000 description 1
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- AIYUHDOJVYHVIT-UHFFFAOYSA-M caesium chloride Chemical compound [Cl-].[Cs+] AIYUHDOJVYHVIT-UHFFFAOYSA-M 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 description 1
- 229910000367 silver sulfate Inorganic materials 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 1
- POWFTOSLLWLEBN-UHFFFAOYSA-N tetrasodium;silicate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-] POWFTOSLLWLEBN-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 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
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311797070.XA CN117945669A (zh) | 2019-03-26 | 2020-03-26 | 化学强化玻璃的制造方法、熔融盐组合物以及熔融盐组合物的寿命延长方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-059039 | 2019-03-26 | ||
| JP2019059039A JP7172790B2 (ja) | 2019-03-26 | 2019-03-26 | 化学強化ガラスの製造方法、溶融塩組成物及び溶融塩組成物の寿命延長方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311797070.XA Division CN117945669A (zh) | 2019-03-26 | 2020-03-26 | 化学强化玻璃的制造方法、熔融盐组合物以及熔融盐组合物的寿命延长方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111747661A CN111747661A (zh) | 2020-10-09 |
| CN111747661B true CN111747661B (zh) | 2024-01-05 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010221883.4A Active CN111747661B (zh) | 2019-03-26 | 2020-03-26 | 化学强化玻璃的制造方法、熔融盐组合物以及熔融盐组合物的寿命延长方法 |
| CN202311797070.XA Pending CN117945669A (zh) | 2019-03-26 | 2020-03-26 | 化学强化玻璃的制造方法、熔融盐组合物以及熔融盐组合物的寿命延长方法 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311797070.XA Pending CN117945669A (zh) | 2019-03-26 | 2020-03-26 | 化学强化玻璃的制造方法、熔融盐组合物以及熔融盐组合物的寿命延长方法 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7172790B2 (ja) |
| CN (2) | CN111747661B (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754315A (zh) * | 2021-07-30 | 2021-12-07 | 翔实光电科技(昆山)有限公司 | 一种提高玻璃化学钢化中硝酸盐活性和长效性的方法 |
| JP2023137438A (ja) * | 2022-03-18 | 2023-09-29 | 日本電気硝子株式会社 | 強化ガラスの製造方法、及び強化ガラス |
| CN114853363A (zh) * | 2022-05-16 | 2022-08-05 | 蓝思科技股份有限公司 | 反向强化回收硼锂铝硅酸盐强化玻璃的方法 |
| WO2024057820A1 (ja) * | 2022-09-16 | 2024-03-21 | 日本電気硝子株式会社 | 強化ガラスの製造方法及びイオン交換液 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215722A (en) * | 1967-04-24 | 1970-12-16 | Glaverbel | Processes for tempering glass and vitro-crystalline materials |
| WO2012086544A1 (ja) * | 2010-12-20 | 2012-06-28 | 三菱化学株式会社 | シリコンの製造方法及び製造装置、シリコンウェハー、並びに、太陽電池用パネル |
| CN103781739A (zh) * | 2011-09-09 | 2014-05-07 | Hoya株式会社 | 便携设备用保护玻璃的制造方法 |
| JP2015129063A (ja) * | 2014-01-07 | 2015-07-16 | 旭硝子株式会社 | ガラス強化用溶融塩の再生方法及び強化ガラスの製造方法 |
| JP2016188166A (ja) * | 2015-03-27 | 2016-11-04 | 旭硝子株式会社 | 化学強化ガラスの製造方法 |
-
2019
- 2019-03-26 JP JP2019059039A patent/JP7172790B2/ja active Active
-
2020
- 2020-03-26 CN CN202010221883.4A patent/CN111747661B/zh active Active
- 2020-03-26 CN CN202311797070.XA patent/CN117945669A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215722A (en) * | 1967-04-24 | 1970-12-16 | Glaverbel | Processes for tempering glass and vitro-crystalline materials |
| WO2012086544A1 (ja) * | 2010-12-20 | 2012-06-28 | 三菱化学株式会社 | シリコンの製造方法及び製造装置、シリコンウェハー、並びに、太陽電池用パネル |
| CN103781739A (zh) * | 2011-09-09 | 2014-05-07 | Hoya株式会社 | 便携设备用保护玻璃的制造方法 |
| JP2015129063A (ja) * | 2014-01-07 | 2015-07-16 | 旭硝子株式会社 | ガラス強化用溶融塩の再生方法及び強化ガラスの製造方法 |
| JP2016188166A (ja) * | 2015-03-27 | 2016-11-04 | 旭硝子株式会社 | 化学強化ガラスの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7172790B2 (ja) | 2022-11-16 |
| CN111747661A (zh) | 2020-10-09 |
| CN117945669A (zh) | 2024-04-30 |
| JP2020158340A (ja) | 2020-10-01 |
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