WO2013161651A1 - Procédé de fabrication de substrat en verre trempé - Google Patents

Procédé de fabrication de substrat en verre trempé Download PDF

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Publication number
WO2013161651A1
WO2013161651A1 PCT/JP2013/061443 JP2013061443W WO2013161651A1 WO 2013161651 A1 WO2013161651 A1 WO 2013161651A1 JP 2013061443 W JP2013061443 W JP 2013061443W WO 2013161651 A1 WO2013161651 A1 WO 2013161651A1
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WO
WIPO (PCT)
Prior art keywords
glass substrate
tank
chemically strengthened
salt melt
strengthened salt
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.)
Ceased
Application number
PCT/JP2013/061443
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English (en)
Japanese (ja)
Inventor
順士 堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to CN201380021996.8A priority Critical patent/CN104284871A/zh
Publication of WO2013161651A1 publication Critical patent/WO2013161651A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a method for manufacturing a tempered glass substrate.
  • Glass substrates are used for displays, cover glass for solar cells, and the like. In recent years, depending on the application, there has been a demand for maintaining and improving the strength as well as making the glass substrate lighter and thinner.
  • Chemical strengthening is a strengthening method in which a glass substrate is brought into contact with a chemically strengthened salt melt to change the composition of the glass substrate surface and form a compressive stress layer on the surface.
  • a glass substrate is immersed in a chemically strengthened salt melt and subjected to chemical strengthening, and then kept in an environment maintained at the same temperature as the chemically strengthened salt melt for a predetermined time. After this predetermined time, the chemically strengthened salt melt adhering to the glass substrate is drained and then air-cooled.
  • the glass substrate is kept at a high temperature during the liquid draining process, stress relaxation of the compressive stress layer occurs, and the degree of strengthening may decrease.
  • the time for draining is shortened or no draining is performed at all.
  • the chemically strengthened salt melt that adheres to and remains on the surface of the glass substrate solidifies on the surface of the glass substrate and cannot be recovered, which is not preferable from the viewpoint of resource protection and cost.
  • the solidified substance of the chemically strengthened salt melt adhering to the surface of the glass substrate is removed, the load on the step of cleaning the glass substrate is increased.
  • the glass substrate when the glass substrate is cooled to about room temperature by air cooling after the liquid draining step, a temperature difference occurs between a portion that is directly exposed to air and a portion that is not directly exposed to air.
  • the strengthening process in order to process a plurality of glass substrates at a time, the strengthening process is performed with the glass substrates set on a shelf called a cassette. For this reason, in a cooling process, depending on the position in the cassette in which the glass substrate is set, a difference occurs in the degree of stress relaxation of the compressive stress layer, and the performance of the obtained tempered glass may vary.
  • Patent Document 1 proposes an example of a method of bringing the glass substrate into contact with a treatment liquid in which a substance having a solidification temperature lower than that of the chemically strengthened salt is melted. ing.
  • the present invention provides a method for producing a tempered glass substrate capable of suppressing the stress relaxation of the compressive stress layer and producing a stable tempered glass substrate with high productivity when performing chemical strengthening in view of the above-mentioned problems of the prior art. This is one purpose.
  • the present invention includes a chemical strengthening step in which a glass substrate is brought into contact with a chemically strengthened salt melt in the first tank, and a cooling in which the glass substrate after the chemical strengthening process is brought into contact with the chemically strengthened salt melt in the second tank. And a step of draining the chemically strengthened salt melt on the surface of the glass substrate, and the chemically strengthened salt melt in the first tank and the second tank are substantially the same.
  • the chemical strengthening salt melt in the second tank has a temperature T2 lower than the temperature of the chemical strengthening salt melt in the first tank, and the chemical strengthening salt of the chemical strengthening salt is used.
  • a melting point T mp satisfy the relationship T mp ⁇ T2 ⁇ T mp +50
  • ambient temperature T3 of the glass substrate in the liquid cutting process is characterized by satisfying the relationship T mp ⁇ T3 ⁇ T mp +50
  • a method for producing a tempered glass substrate is provided.
  • the stress relaxation of the compressive stress layer is suppressed, and a stable quality tempered glass substrate can be manufactured with high productivity.
  • the method for producing a tempered glass substrate according to the present invention includes a chemical strengthening step in which a glass substrate is brought into contact with a chemically strengthened salt melt in the first tank, and a glass substrate that has been subjected to the chemical strengthening process in a chemically strengthened salt in the second tank A cooling step for contacting the melt, and a liquid draining step for cutting the chemically strengthened salt melt on the surface of the glass substrate.
  • the chemically strengthened salt melt in the first tank and the second tank uses chemically strengthened salts having substantially the same composition
  • the temperature T2 of the chemically strengthened salt melt in the second tank is: It is lower than the temperature of the chemically strengthened salt melt in the first tank, and satisfies the relationship of the melting point Tmp of the chemically strengthened salt and Tmp ⁇ T2 ⁇ Tmp + 50.
  • the ambient temperature T3 of the glass substrate in the liquid cutting process is characterized by satisfying the relationship T mp ⁇ T3 ⁇ T mp +50 .
  • substrate of this invention can prepare another glass substrate continuously after the said liquid draining process completion, and can perform the said chemical strengthening process, a cooling process, and a liquid draining process repeatedly.
  • FIG. 1A a cassette 14 holding a plurality of glass substrates 13 is immersed in a first tank 11 containing a chemically strengthened salt melt, and the glass substrate 13 and the chemically strengthened salt melt in the first tank are 2 shows a chemical strengthening process in which the chemical strengthening is performed by contacting the two.
  • the glass substrate 13 shown in FIG. 1 is a flat plate shape, but is not limited to such a shape, and may have a curved shape or various three-dimensional shapes. it can.
  • the glass substrate 13 is cooled by using a liquid in the second tank 12 as will be described later. Therefore, even a three-dimensional glass substrate can be cooled uniformly, and the tempered glass has stable performance. It is because it can manufacture.
  • the thickness of the glass substrate 13 is not particularly limited, it is preferably 0.1 mm or more and 5 mm or less because it can be preferably used for a glass substrate for use in which thinning is particularly required. It is more preferably 0.3 mm or more and 3 mm or less, and particularly preferably 0.5 mm or more and 2 mm or less.
  • board thickness of one glass substrate differs partially, it is preferable that the maximum value and minimum value of the plate
  • composition of the glass material of the glass substrate 13 is not limited, and glass substrates having various compositions can be used.
  • SiO 2 is 60% to 80%
  • Al 2 O 3 is 2% to 15%
  • Na 2 O is 10% to 18%
  • K 2 O is 0 to 6%
  • a glass material containing 2% to 12% of MgO, 0 to 5% of CaO, and 0 to 3% of ZrO 2 can be preferably used for the glass substrate 13.
  • the cassette 14 can be configured to carry the glass substrate 13 while being held in the cassette 14. In this case, by immersing the cassette 14 in the chemically strengthened salt melt in the first tank 11 or the second tank 12, the glass substrate 13 held inside is chemically strengthened without requiring any special operation. It is preferable to make it possible to contact the salt melt. Further, it is preferable that the chemically strengthened salt melt adhering to the glass substrate 13 and the cassette 14 is cut when the liquid is drained.
  • the means for holding and transporting the glass substrate 13 is not limited to the form using the cassette 14, but is brought into contact with the chemically strengthened salt melt in the first tank 11 and the second tank 12 at a predetermined timing, What is necessary is just to be comprised so that cutting can be performed.
  • the chemical strengthening step in the present invention is performed by bringing the glass substrate 13 into contact with the chemically strengthened salt melt in the first tank 11.
  • the alkali metal (X) ions near the surface of the glass substrate 13 and the alkali metal (Y) ions in the chemically strengthened salt melt are replaced.
  • the ion radius of Y ions is larger than the ion radius of X ions.
  • the chemically strengthened salt melt in the first tank 11 decreases and at the same time the X ions increase, resulting in deterioration of the chemically strengthened salt melt. For this reason, after performing a chemical strengthening process in multiple times, when the Y ion of a chemically strengthened salt melt decreases and the glass substrate 13 is not chemically strengthened to a sufficient extent, the chemically strengthened salt melt in the first tank 11 Is preferably replaced with a chemically strengthened salt melt that has not deteriorated.
  • the chemically strengthened salt used for the chemically strengthened salt melt in the first tank 11 can be selected according to the material of the glass substrate 13 to be chemically strengthened, and for example, potassium nitrate, sodium nitrate or the like can be used.
  • the chemically strengthened salt preferably contains potassium nitrate.
  • Conditions such as time and temperature for performing the chemical strengthening of the glass substrate 13 in the first tank 11 are not particularly limited.
  • the glass substrate 13 to be used, the type of chemical strengthening salt, the required surface compressive stress of the glass substrate 13 are not limited. It can be selected according to the degree.
  • the glass substrate 13 is taken out from the 1st tank 11 with the conveyance member 15.
  • the glass substrate 13 is brought into contact with the chemically strengthened salt melt in the second tank 12 by immersing the glass substrate 13 in the chemically strengthened salt melt in the second tank 12.
  • the glass substrate 13 taken out from the first tank 11 is transported to the second tank 12 without draining, but the chemical strengthening of the first tank 11 is performed. It is preferable that the chemically strengthened salt melt adhering to the cassette 14 and the glass substrate 13 is dropped into the first tank 11 and transported to such an extent that the liquid level of the salt melt does not drop significantly.
  • the chemically strengthened salt melting solution in the second tank 12 is obtained by melting the chemically strengthened salt having substantially the same composition as that in the first tank 11 as described above. If the chemical strengthening step in the first tank 11 is repeated, the alkali metal ions in the chemically strengthened salt melt in the first tank 11 and the alkali metal ions in the glass substrate 13 are replaced. As the strengthening is performed, the chemically strengthened molten salt deteriorates.
  • the composition of the chemically strengthened salt melt in the first tank 11 changes in the process of manufacturing the strengthened glass substrate 13 of the present invention.
  • a chemically strengthened salt melt containing X ions adhering to the glass substrate 13, the cassette 14, and the like conveyed from the first tank 11 is mixed, or the glass substrate 13 is also cooled during the cooling process.
  • X ions on the surface may elute into the chemically strengthened salt melt in the second tank 12, so that X ions may be mixed into the second tank 12. Therefore, in the present invention, the chemically strengthened salt melt having substantially the same composition means the deterioration of the chemically strengthened salt melt caused by performing the chemical strengthening step and the second tank of X ions generated by performing the cooling step.
  • the temperature T2 of the chemically strengthened salt melt in the second tank 12 is the temperature (T1) of the chemically strengthened salt melt in the first tank 11 in order to cool the glass substrate 13 after chemical strengthening in the first tank 11. ) Is set lower.
  • the temperature of the second tank 12 is preferably as low as possible. .
  • the chemically strengthened salt in the second tank 12 no longer exists as a melt and cannot be brought into contact with the glass substrate 13, so that the temperature is higher than the melting point Tmp of the chemically strengthened salt. Is set.
  • the temperature T2 of the chemically strengthened salt melt in the second tank 12 is set so as to satisfy the relationship of T mp ⁇ T2 ⁇ T mp +50, but as described above, the chemically strengthened salt melt in the second tank 12 Since it is preferable that the temperature of a liquid is low, it is more preferable to satisfy
  • fill Tmp ⁇ T2 ⁇ Tmp + 30. Moreover, it is particularly preferable that T mp +10 ⁇ T2 ⁇ T mp +30 because it is preferable to set the temperature away from the melting point so that the chemically strengthened salt melt does not solidify.
  • the chemically strengthened salt melt is forcibly convected in the second tank 12. This is because the temperature in the melt is made more uniform by convection of the chemically strengthened salt melt in the second tank 12, and the glass substrate 13 disposed in the second tank 12 is cooled uniformly regardless of the location. Because. By uniformly cooling the glass substrate 13 in this step, variations in the degree of strengthening of the glass substrate 13 can be suppressed.
  • the method of convection of the melt is not particularly limited, and various means can be used.
  • the method of stirring the melt with a stirrer and convection the circulation of the melt in the second tank 12 using a circulation device
  • a method of convection and a method of stirring by blowing gas are examples of various means.
  • the time for performing the cooling step in the second tank 12 is not particularly limited, and can be selected according to the temperature of the glass substrate 13 or the like.
  • the glass substrate 13 is taken out from the 2nd tank 12 with the conveyance means 15, and a liquid draining process is performed.
  • the liquid draining step is a step for cutting the chemically strengthened salt melt adhering to the surface of the glass substrate 13, and during the liquid draining step, the ambient temperature T3 of the glass substrate 13 is Tmp ⁇ T3 ⁇ Tmp + 50. Satisfy the relationship. This is to prevent the chemically strengthened salt melt adhering to the surface of the glass substrate 13 from solidifying on the surface of the glass substrate 13 during the liquid draining step. Moreover, since the temperature of the glass substrate 13 is maintained at a temperature near the melting point of the chemically strengthened salt, stress relaxation of the compressive stress layer can be suppressed.
  • the ambient temperature of the glass substrate 13 only needs to satisfy the above range, but it is preferable to keep the temperature of the glass substrate 13 as low as possible, so that T mp ⁇ T3 ⁇ T mp +30. Is more preferable. Furthermore, since it is preferable to set the temperature away from the melting point so that the chemically strengthened salt melt does not solidify, it is particularly preferable that T mp +10 ⁇ T3 ⁇ T mp +30.
  • the ambient temperature T3 of the glass substrate 13 during the liquid draining step can be selected regardless of the temperature T2 of the chemically strengthened salt melt in the second tank 12, but is cooled in the second tank 12. More preferably, the relationship of T3 ⁇ T2 is also satisfied.
  • the specific configuration is limited as long as the periphery of the glass substrate 13 is maintained in the above temperature range and the chemically strengthened salt melt adhering to the surface of the glass substrate 13 can be drained.
  • the configuration shown in FIG. 1C can be used.
  • the cassette 14 holding the glass substrate 13 is fixed on the second tank 12 by the transport means 15 and the temperature around the cassette 14 can be maintained in the above temperature range. .
  • the chemically strengthened salt melt recovered by draining can be returned to the second tank 12 as it is.
  • the periphery of the glass substrate 13 can be set to the same temperature as the temperature of the second tank 12 or the vicinity thereof by the heat from the chemically strengthened salt melt in the second tank 12. For this reason, it is possible to easily maintain the ambient temperature of the glass substrate 13 during the liquid draining step in the above range.
  • a heater, a heat insulating material, or the like for controlling the ambient temperature of the glass substrate 13 to a predetermined temperature can be arranged inside or around the covering member.
  • a chemically strengthened salt melt recovery tank is provided separately for the liquid draining process, and the ambient temperature of the glass substrate 13 is maintained within a predetermined temperature range in the tank, It can also be set as the structure collect
  • the tempered glass substrate obtained by the method for producing a tempered glass substrate of the present invention preferably has a surface compressive stress of 200 MPa or more and 1200 MPa or less, and more preferably 400 MPa or more and 900 MPa or less.
  • the surface compressive stress is preferably generated at a depth of 5 ⁇ m to 60 ⁇ m from the surface of the tempered glass substrate, and more preferably generated at a depth of 15 ⁇ m to 50 ⁇ m. It is preferable that the surface compressive stress is generated at a depth in the above range because cracking of the tempered glass substrate can be suppressed even if the surface of the glass substrate is damaged.
  • the glass substrate after performing the chemical strengthening step is cooled using the chemically strengthened salt melt in the second tank, and then drained.
  • stress relaxation of the compressive stress layer can be suppressed and the chemical strengthening salt can be prevented from solidifying on the surface of the glass substrate.
  • it can cool uniformly by cooling with the chemical strengthening salt melt of a 2nd tank, and it can suppress that dispersion
  • the chemically strengthened salt melts in the first tank and the second tank use chemically strengthened salts having substantially the same composition, even when one chemically strengthened salt melt enters the other, each tank It is difficult for the composition of the chemically strengthened salt melt to change, and the degree of strengthening of the glass substrate can be made substantially uniform. Furthermore, since the replacement frequency of the chemically strengthened salt melt can be reduced as compared with the conventional case, productivity can be increased.
  • the present invention can be used for manufacturing various glass substrates.

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  • 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)
  • Glass Compositions (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention porte sur un procédé de fabrication d'un substrat en verre trempé, ledit procédé comportant une étape de trempe chimique consistant à mettre en contact un substrat en verre avec un liquide à base de sel de trempe chimique fondu dans une première cuve, une étape de refroidissement consistant à mettre en contact le substrat en verre ayant été traité dans l'étape de trempe chimique avec un liquide à base de sel de trempe chimique fondu dans une seconde cuve et une étape d'égouttage consistant à égoutter les liquides à base de sel de trempe chimique fondu collant à la surface du substrat en verre, ledit procédé étant caractérisé en ce que : les liquides à base de sel de trempe chimique fondu dans la première cuve et dans la seconde cuve comportent des sels de trempe chimique ayant pratiquement la même composition chimique ; la température (T2) du liquide à base de sel de trempe chimique fondu dans la seconde cuve est inférieure à la température du liquide à base de sel de trempe chimique fondu dans la première cuve et satisfait à la relation Tmp<T2≤Tmp+50, Tmp représentant le point de fusion du sel de trempe chimique ; dans l'étape d'égouttage, la température ambiante (T3) autour du substrat en verre satisfait à la relation Tmp<T3≤Tmp+50.
PCT/JP2013/061443 2012-04-27 2013-04-18 Procédé de fabrication de substrat en verre trempé Ceased WO2013161651A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380021996.8A CN104284871A (zh) 2012-04-27 2013-04-18 强化玻璃基板制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-103245 2012-04-27
JP2012103245 2012-04-27

Publications (1)

Publication Number Publication Date
WO2013161651A1 true WO2013161651A1 (fr) 2013-10-31

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PCT/JP2013/061443 Ceased WO2013161651A1 (fr) 2012-04-27 2013-04-18 Procédé de fabrication de substrat en verre trempé

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JP (1) JPWO2013161651A1 (fr)
CN (1) CN104284871A (fr)
TW (1) TW201348159A (fr)
WO (1) WO2013161651A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220363593A1 (en) * 2021-05-11 2022-11-17 Samsung Display Co., Ltd. Apparatus and method for manufacturing tempered glass
US12426184B2 (en) 2019-08-29 2025-09-23 Corning Incorporated Foldable apparatus, ribbons, and methods of making
US12481316B2 (en) 2019-08-29 2025-11-25 Corning Incorporated Foldable apparatus, foldable substrate, and methods of making
US12521963B2 (en) 2019-10-14 2026-01-13 Corning Incorporated Foldable apparatus and methods of making

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117534341B (zh) * 2024-01-02 2024-03-26 江苏苏钏科技有限公司 一种用于薄柔性玻璃加工强化设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106253A1 (fr) * 2003-05-28 2004-12-09 Central Glass Company, Limited Verre chimiquement renforce et procede de production de ce dernier
WO2007111149A1 (fr) * 2006-03-24 2007-10-04 Hoya Corporation procédé de fabrication de substrat de verre pour disque magnétique et procédé de fabrication de disque magnétique
JP2011123924A (ja) * 2009-12-08 2011-06-23 Asahi Glass Co Ltd データ記憶媒体用ガラス基板の製造方法及びガラス基板

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY149899A (en) * 2006-09-29 2013-10-31 Hoya Corp Method for producing glass substrate for magnetic disk and method for producing magnetic disk

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106253A1 (fr) * 2003-05-28 2004-12-09 Central Glass Company, Limited Verre chimiquement renforce et procede de production de ce dernier
WO2007111149A1 (fr) * 2006-03-24 2007-10-04 Hoya Corporation procédé de fabrication de substrat de verre pour disque magnétique et procédé de fabrication de disque magnétique
JP2011123924A (ja) * 2009-12-08 2011-06-23 Asahi Glass Co Ltd データ記憶媒体用ガラス基板の製造方法及びガラス基板

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12426184B2 (en) 2019-08-29 2025-09-23 Corning Incorporated Foldable apparatus, ribbons, and methods of making
US12481316B2 (en) 2019-08-29 2025-11-25 Corning Incorporated Foldable apparatus, foldable substrate, and methods of making
US12521963B2 (en) 2019-10-14 2026-01-13 Corning Incorporated Foldable apparatus and methods of making
US20220363593A1 (en) * 2021-05-11 2022-11-17 Samsung Display Co., Ltd. Apparatus and method for manufacturing tempered glass
US12151969B2 (en) * 2021-05-11 2024-11-26 Samsung Display Co., Ltd. Apparatus and method for manufacturing tempered glass

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CN104284871A (zh) 2015-01-14
JPWO2013161651A1 (ja) 2015-12-24
TW201348159A (zh) 2013-12-01

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