WO2009081740A1 - Procédé et appareil de fabrication d'une plaque de verre - Google Patents

Procédé et appareil de fabrication d'une plaque de verre Download PDF

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Publication number
WO2009081740A1
WO2009081740A1 PCT/JP2008/072450 JP2008072450W WO2009081740A1 WO 2009081740 A1 WO2009081740 A1 WO 2009081740A1 JP 2008072450 W JP2008072450 W JP 2008072450W WO 2009081740 A1 WO2009081740 A1 WO 2009081740A1
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WO
WIPO (PCT)
Prior art keywords
glass
glass plate
glass ribbon
furnace
ribbon
Prior art date
Application number
PCT/JP2008/072450
Other languages
English (en)
Japanese (ja)
Inventor
Noritomo Nishiura
Koki Ueda
Hidetaka Oda
Tomonori Kano
Daisuke Nagata
Original Assignee
Nippon Electric 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
Priority claimed from JP2008276628A external-priority patent/JP5428288B2/ja
Application filed by Nippon Electric Glass Co., Ltd. filed Critical Nippon Electric Glass Co., Ltd.
Priority to CN2008801103205A priority Critical patent/CN101821209B/zh
Priority to US12/810,162 priority patent/US8322160B2/en
Priority to KR1020107004074A priority patent/KR101521138B1/ko
Publication of WO2009081740A1 publication Critical patent/WO2009081740A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/06—Forming glass sheets
    • C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B25/00—Annealing glass products
    • C03B25/04—Annealing glass products in a continuous way
    • C03B25/10—Annealing glass products in a continuous way with vertical displacement of the glass products
    • C03B25/12—Annealing glass products in a continuous way with vertical displacement of the glass products of glass sheets
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
    • C03B29/14—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with vertical displacement of the products
    • C03B29/16—Glass sheets
    • 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
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium

Definitions

  • the present invention relates to a method for manufacturing a glass plate and a manufacturing facility therefor, in which molten glass is caused to flow down from a molded body and a glass ribbon is stretch-formed in the vertical direction.
  • a down draw method is known in which glass glass is drawn by flowing molten glass from a molded body and drawing a glass ribbon in a vertical direction. Yes.
  • the overflow downdraw method has a very small surface waviness and roughness and provides a glass plate with excellent surface quality. It is widely known as a method that can
  • molten glass continuously supplied to the top of a molded body having a wedge-shaped cross-sectional shape is caused to flow down from the top of the molded body along both side surfaces, and is fused at the lower end of the molded body.
  • a plate-like glass ribbon is formed, and both edges of the glass ribbon are stretched and formed into a glass ribbon by flowing down a conveying path extending in the vertical direction while being sandwiched by a plurality of pulling rollers.
  • the glass ribbon gradually solidifies and becomes a glass plate having a predetermined width and thickness.
  • the ambient temperature in the transport path is strictly controlled, and thereby the internal strain (thermal strain) of the glass plate is sufficiently reduced, and then cooled to near room temperature.
  • JP-A-10-53427 a plurality of chambers are formed by horizontally dividing the inside of a forming furnace or an annealing furnace, each room is provided with a room temperature adjusting function, and sufficient slow cooling is performed.
  • a method for producing a glass plate with low internal strain is disclosed.
  • Japanese Patent Application Laid-Open No. 2001-31435 discloses a technique for suppressing minute internal distortion and deformation by forming the temperature distribution of an annealing furnace in the width direction of the glass ribbon.
  • Japanese Patent Laid-Open No. 5-124826 Japanese Patent Laid-Open No. 10-53426 JP 2001-31435 A
  • liquid crystal displays are required to have higher definition and higher image quality, and glass plates used therefor are required to have a maximum internal strain of 1.0 MPa or less.
  • the glass plate for liquid crystal displays has been rapidly increased in size, and for example, glass ribbons having a width dimension (effective width) of 2000 mm or more at a part finally becoming a glass product have been formed. Yes.
  • the internal strain of the glass plate also tends to increase, making it difficult to reduce the internal strain to 1.0 MPa or less.
  • a low temperature air flow One of the causes of the internal distortion of the glass plate is an air flow rising along the surface of the glass ribbon (hereinafter referred to as a low temperature air flow). That is, in the glass ribbon conveyance path, the low-temperature air flow always rises along the surface of the glass ribbon, and the ambient temperature in the annealing furnace is likely to fluctuate.
  • Japanese Patent Application Laid-Open No. 5-139766 discloses that a convection prevention plate is formed in the annealing furnace. However, since the low-temperature air flow rises in the vicinity of the surface of the glass ribbon, the convection prevention plate is sufficiently blocked. Can not do it.
  • the present invention has been made in view of the above circumstances, and provides a method for obtaining a high-quality glass plate with high productivity by avoiding the problem of internal distortion that increases as the glass plate becomes larger. Technical issue.
  • the present inventors have heated the low temperature air flow rising from the cooling chamber and the cutting chamber into the annealing furnace through the glass ribbon conveyance path in the annealing furnace. After that, leaking to the outside atmosphere through the gap between the furnace walls of the forming furnace and annealing furnace, and suppressing the leakage of the internal air of the forming furnace and annealing furnace, increasing the low-temperature air flow in the glass ribbon transport path.
  • the inventors have found that it is possible to suppress the problem and have proposed the present invention.
  • the invention according to claim 1 is to supply molten glass to a molded body provided in a molding furnace and to flow the molten glass from the molded body to a conveying path extending in a vertical direction.
  • a method of manufacturing a glass plate comprising: a step of cutting to a size, wherein the atmospheric pressure of an external atmosphere of the forming furnace and / or the annealing furnace is pressurized.
  • the invention according to claim 2 is to supply molten glass to a molded body provided in a molding furnace and to let the molten glass flow down from the molded body to a conveying path extending in a vertical direction.
  • a forming process for drawing and forming into a plate-shaped glass ribbon, an annealing process for removing internal distortion of the glass ribbon in an annealing furnace, a cooling process for cooling the glass ribbon to near room temperature, and the glass ribbon having a predetermined size A method of manufacturing a glass plate, comprising: adjusting the atmospheric pressure in the molding furnace to be higher than the atmospheric pressure in the cooling step.
  • formed in order to solve the said subject introduces air from the exterior, and pressurizes the atmospheric pressure of the external atmosphere of a shaping
  • the invention according to claim 4 made to solve the above-mentioned problems is characterized in that the forming step is a step of forming a glass ribbon by an overflow down draw method or a slot down draw method.
  • the invention according to claim 5 made to solve the above-mentioned problems is characterized in that the short side of the glass plate has a length of 2000 mm or more. Lies in the manufacturing method.
  • the invention according to claim 7, which was made to solve the above-mentioned problems, is that the glass plate has a mass percentage of SiO 2 40 to 70%, Al 2 O 3 2 to 25%, B 2 O 3 0 to 20%, MgO 0-10%, CaO 0-15%, SrO 0-10%, BaO 0-15%, ZnO 0-10%, ZrO 2 0-10%, fining agent 0-2%
  • the glass plate manufacturing method according to any one of claims 1 to 6 is characterized.
  • the invention according to claim 8 is to supply molten glass to a molded body and to flow the molten glass from the molded body down to a conveying path extending in a vertical direction to form a plate-shaped glass ribbon.
  • a forming furnace for drawing and forming, an annealing furnace for removing internal strain of the glass ribbon, a cooling chamber for cooling the glass ribbon to near room temperature, and for cutting the glass ribbon to a predetermined dimension A glass plate manufacturing facility comprising: a cutting chamber; and a pressurizing means for increasing the atmospheric pressure of the external atmosphere of the forming furnace and / or the annealing furnace.
  • the invention according to claim 9 made to solve the above-mentioned problems resides in the glass plate manufacturing facility according to claim 8, wherein the pressurizing means is a blower.
  • pressurizing the atmospheric pressure of the molding furnace and / or the annealing furnace means that the pressure of the external space (chamber) surrounding either or both of the molding furnace and the annealing furnace is increased by the pressurizing means. . That is, it means that the pressure is adjusted so that the pressure is higher than the pressure when the pressurizing means is not used.
  • the degree of pressurization may be set as appropriate so as to reduce the amount of leakage of the internal air of the molding furnace or annealing furnace to the outside of the furnace.
  • the external space surrounding the molding furnace and the annealing furnace may be composed of one chamber or may be divided into two chambers, but it is necessary to maintain an airtight state.
  • the chamber is divided into two chambers, for example, when the molding furnace is surrounded by the molding chamber and the annealing furnace is surrounded by the annealing chamber, the pressure in the molding chamber and the annealing chamber is adjusted independently. .
  • the atmospheric pressure in the molding furnace to be higher than the atmospheric pressure in the cooling process below it, the pressure of the external atmosphere of the molding furnace is increased, or the air from the molding furnace to the external atmosphere
  • the difference between the atmospheric pressure in the molding furnace and the atmospheric pressure in the cooling process may be appropriately selected depending on the size of the equipment and the temperature conditions. A predetermined effect can be obtained by providing the difference.
  • air is introduced from the outside and the atmospheric pressure of the external atmosphere of the molding furnace and / or annealing furnace is increased. It is possible to press. That is, by installing a blower outside the chamber surrounding the molding furnace and the annealing furnace and introducing air from the outside by the blower, the atmospheric pressure in the external atmosphere of the molding furnace and the annealing furnace can be easily increased.
  • the forming step is a step of forming a glass ribbon by an overflow down draw method or a slot down draw method, it is possible to efficiently form a thin glass sheet.
  • the slot down draw method is a method in which molten glass is supplied to a molded body having an elongated hole-shaped (slot-shaped) opening, and then the molten glass is drawn out from the opening of the molded body to form a plate-like glass ribbon. In this method, a glass ribbon is produced by stretching a glass ribbon in the vertical direction.
  • the glass ribbon flowing down in the vertical direction from the cooling step may be cut in the width direction (direction perpendicular to the flowing direction of the glass ribbon)
  • the ribbon may be bent from the vertical direction to the horizontal direction and cut in the width direction while moving in the horizontal direction.
  • the present invention is particularly useful for producing a large glass plate, specifically, a glass plate having a short side of 2000 mm or more, preferably 2500 mm or more, and more preferably 3000 mm or more.
  • the maximum value of the internal strain of the glass plate is 1.0 MPa or less, the image of the liquid crystal display can be prevented from becoming inhomogeneous due to birefringence.
  • the maximum value of internal strain can be set to 1.0 MPa or less, 0.8 MPa or less, and further 0.7 MPa or less.
  • a glass plate by mass percentage, SiO 2 40 ⁇ 70%, Al 2 O 3 2 ⁇ 25%, B 2 O 3 0 ⁇ 20%, MgO 0 ⁇ 10%, CaO Contains 0-15%, SrO 0-10%, BaO 0-15%, ZnO 0-10%, ZrO 2 0-10%, fining agent 0-2%, chemical resistance (good acid resistance , Alkali resistance, buffered hydrofluoric acid), heat resistance (strain point 630 ° C. or higher), meltability (temperature corresponding to a viscosity of 10 2.5 poise, 1600 ° C. or lower), moldability (liquidus temperature 1150 ° C.
  • a thermal expansion coefficient 25 to 45 ⁇ 10 ⁇ 7 / ° C. at a temperature of 30 to 380 ° C.
  • a glass plate for a liquid crystal display that can easily suppress internal distortion after molding can be obtained.
  • the reason why the above glass composition is preferable is as follows.
  • SiO 2 is a component that forms a network of glass, reduces the thermal expansion coefficient of glass, reduces internal strain, improves the acid resistance of glass, increases the strain point of glass, There is an effect of reducing thermal shrinkage.
  • the content of SiO 2 increases, the high-temperature viscosity of the glass increases, the meltability deteriorates, and the devitrification blisters of cristobalite tend to precipitate. Therefore, the content of SiO 2 is 40 to 70%, preferably 50 to 67%, more preferably 57 to 64%.
  • Al 2 O 3 is a component that lowers the thermal expansion coefficient of glass or reduces the internal strain of the glass plate. It also has the effect of raising the strain point of the glass and suppressing the devitrification of cristobalite.
  • Al 2 O 3 is 2 to 25%, preferably 10 to 20%, more preferably 14 to 17%.
  • B 2 O 3 is a component that acts as a flux, lowers the viscosity of the glass, and improves the meltability. Moreover, it is a component which reduces the thermal expansion coefficient of glass or makes the internal distortion of a glass plate small. However, when the content of B 2 O 3 increases, the strain point of the glass decreases and the acid resistance tends to deteriorate. Therefore, the content of B 2 O 3 is 0 to 20%, preferably 5 to 15%, more preferably 7.5 to 12%.
  • MgO is a component that improves the meltability of the glass by reducing only the high temperature viscosity without reducing the strain point of the glass.
  • the content of MgO increases, devitrification bumps are likely to precipitate in the glass. Further, the resistance to buffered hydrofluoric acid is lowered, and when the glass plate is treated with buffered hydrofluoric acid, the surface thereof is eroded and the reaction product adheres, and it tends to become cloudy. Therefore, the content of MgO is 0 to 10%, preferably 0 to 5%, more preferably 0 to 3.5%.
  • CaO is a component that improves the meltability of the glass by lowering only the high temperature viscosity without lowering the strain point of the glass.
  • the CaO content is 0 to 15%, preferably 0 to 12%, more preferably 3.5 to 9%.
  • SrO is a component that improves the chemical resistance and devitrification resistance of glass.
  • the SrO content is 0 to 10%, preferably 0 to 8%, more preferably more than 0.5 to 8%.
  • BaO is a component that improves the chemical resistance and devitrification resistance of glass in the same manner as SrO.
  • the content of BaO increases, the density and thermal expansion coefficient of the glass tend to increase, and the meltability tends to deteriorate significantly. Therefore, BaO is 0 to 15%, preferably 0 to 10%, more preferably 0 to 8%.
  • ZnO is a component that improves the buffered hydrofluoric acid resistance and meltability of glass, but when its content increases, the devitrification resistance and strain point of the glass tend to decrease. Therefore, the content of ZnO is 0 to 10%, preferably 0 to 5%, more preferably 0 to 1%.
  • ZrO 2 is a component that increases the strain point of the glass.
  • the content of ZrO 2 is 0 to 10%, preferably 0 to 7%, more preferably 0 to 5%.
  • Y 2 O 3 , La 2 O 3 , Nb 2 O 3 , and P 2 O 5 are added for the purpose of reducing the liquidus temperature of the glass and improving the formability. It is possible to contain up to 3% of each. However, if an alkali metal oxide (R 2 O) such as Na 2 O, K 2 O, or Li 2 O is contained, there is a risk of deteriorating the characteristics of various films and TFT elements formed on the liquid crystal display glass plate. Therefore, the inclusion of these components should be avoided. Specifically, it should be regulated to 0.1% or less with R 2 O.
  • R 2 O alkali metal oxide
  • the pressurizing means is a blower
  • the blower is installed outside the chamber surrounding the molding furnace and the annealing furnace, and air is introduced from the outside by the blower, thereby forming the furnace.
  • FIG. 1 is a schematic front view showing equipment for manufacturing a glass plate of the present invention.
  • This manufacturing equipment is for manufacturing a glass plate (glass substrate) for a liquid crystal display by the overflow down draw method, and is supplied from the top to the molten glass 10 having a wedge-shaped cross-sectional shape.
  • Overflowing A from the top and fusing at the lower end thereof, a forming furnace 11 for forming the glass ribbon B, an annealing furnace 12 for removing the internal strain while gradually cooling the glass ribbon B, and A cooling chamber 13 that sufficiently cools the cooled glass ribbon B and a cutting chamber 14 that cuts the cooled glass ribbon B into a predetermined dimension are provided.
  • the molding furnace 11 and the annealing furnace 12 are surrounded by a molding chamber 15, and a blower 16 is installed outside the molding chamber 15.
  • the cooling chamber 13, the cutting chamber 14 and the molding chamber 15 adjacent in the vertical direction are surrounded by an airtight peripheral wall portion 17, and the molding furnace 11, the annealing furnace 12, the cooling chamber 13 and the cutting chamber 14 are made of a glass ribbon B.
  • the cutting chamber 14 is additionally provided with a transport path for transporting the glass plate C to a subsequent process (for example, an end surface polishing process) that is not shown.
  • molten glass A is supplied to the top of the molded body 10 provided in the molding furnace 11, and the molten glass A overflows from the top of the molded body 10 and is fused at the lower end thereof.
  • a shaped glass ribbon B is formed.
  • a pair of cooling rollers (edge rollers) 19 are provided in the vicinity of the molded body 10, and both edges of the glass ribbon B are held between the cooling rollers 19, and shrinkage in the width direction is minimized.
  • the formed glass ribbon B is gradually cooled in the annealing furnace 12 to remove internal strain.
  • a plurality of pairs of pulling rollers (annealing rollers) 20 are arranged in the vertical direction, and pulled downward while pulling in the width direction by the pulling roller 20 so that the glass ribbon B does not contract in the width direction due to surface tension or the like.
  • the inside of the annealing furnace 12 is set to have a predetermined temperature gradient by a heater (not shown), and the glass ribbon B is generated inside by gradually decreasing the temperature as it flows through the annealing furnace 12. Internal distortion is removed.
  • the blower 16 installed outside the molding chamber 15 is operated, and air is introduced into the molding chamber 15 from the outside through the filter 21 attached to the peripheral wall portion.
  • the pressure in the molding chamber 15, that is, the pressure in the atmosphere outside the molding furnace 11 and the annealing furnace 12 is increased, and the amount of internal air leaking from the gaps between the furnace walls 11 a and 12 a of the molding furnace 11 and the annealing furnace 12 is reduced.
  • the atmospheric pressure in the molding furnace 11 can be made higher than the atmospheric pressure in the cooling step, that is, 0.001 atm or higher than the atmospheric pressure in the cooling chamber 13.
  • a plurality of pairs of support rollers 22 are disposed, and the glass ribbon B solidified to a predetermined width and thickness is pulled downward.
  • the glass ribbon B is cooled to approximately room temperature in the cooling chamber 13.
  • the glass ribbon cooled to near room temperature in the cooling chamber 13 is cut into a glass plate C having a predetermined size in the cutting chamber 14 and then conveyed to the subsequent process.
  • the dimension of the obtained glass plate was 2360 ⁇ 2030 ⁇ 0.7 mm, and the maximum strain of this glass plate was measured and found to be 0.8 MPa.
  • the glass plate according to the embodiment has a smaller maximum strain than the glass plate according to the comparative example, and thus the present invention has a great effect of reducing the internal strain of the glass plate.
  • the maximum strain of the glass plate is obtained by measuring the strain stress from the birefringence amount of the glass plate by an optical heterodyne interferometry using a strain meter made by UNIOPTO.
  • the reason why the maximum strain of the glass plate is obtained is that if there is a strong strain even at one place in the glass plate, the product standard of the glass plate for liquid crystal display is not satisfied.
  • this invention is not limited to said embodiment, In the range which does not deviate from the summary of this invention, it can implement with a various form further.
  • the present invention is applied to the production of a glass plate by the overflow downdraw method.
  • the present invention is similarly applied to the production of a glass plate by, for example, the slot downdraw method. Can be applied.
  • the molding furnace and the annealing furnace are surrounded by one chamber (molding chamber) has been described.
  • the molding furnace and the annealing furnace are respectively surrounded by different chambers (for example, the molding chamber and the annealing chamber). May be.
  • an air blower is installed only in one chamber or outside both chambers, and the air pressure is adjusted independently.
  • the glass plate manufacturing method and manufacturing equipment of the present invention includes a glass plate used for various flat panel displays such as a liquid crystal display glass plate, an electroluminescence display such as a plasma display, an organic EL, a field emission display, and the like. It can use for manufacture of the glass plate used as a base material for forming an electronic display functional element and a thin film.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Glass Compositions (AREA)

Abstract

Procédé de fabrication d'une plaque de verre (C) englobant les opérations suivantes: opération de formage au cours de laquelle du verre en fusion (A) va alimenter une cuvette (10) disposée dans un four de formage (11), puis s'écoule de la cuvette (10) à travers un passage de transport (18) orienté verticalement ou le verre (A) est étiré sous forme d'un ruban de verre plat (B)) opération de recuit au cours de laquelle les contraintes internes du ruban de verre (B) sont éliminées dans une arche à recuire (12); et opération de refroidissement au cours de laquelle le ruban de verre (B) est refroidi à peu près à la température ambiante; et opération de découpe au cours de laquelle le ruban de verre est découpé selon une forme donnée, la pression de l'atmosphère autour du four de formage (11) et/ou de l'arche à recuire (12) étant élevée.
PCT/JP2008/072450 2007-12-25 2008-12-10 Procédé et appareil de fabrication d'une plaque de verre WO2009081740A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008801103205A CN101821209B (zh) 2007-12-25 2008-12-10 玻璃板的制造方法及制造设备
US12/810,162 US8322160B2 (en) 2007-12-25 2008-12-10 Process and apparatus for producing glass sheet
KR1020107004074A KR101521138B1 (ko) 2007-12-25 2008-12-10 유리판의 제조 방법 및 제조 설비

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-331287 2007-12-25
JP2007331287 2007-12-25
JP2008276628A JP5428288B2 (ja) 2007-12-25 2008-10-28 ガラス板の製造方法及び製造設備
JP2008-276628 2008-10-28

Publications (1)

Publication Number Publication Date
WO2009081740A1 true WO2009081740A1 (fr) 2009-07-02

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PCT/JP2008/072450 WO2009081740A1 (fr) 2007-12-25 2008-12-10 Procédé et appareil de fabrication d'une plaque de verre

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110126591A1 (en) * 2009-11-30 2011-06-02 Paul Gregory Chalk Method and Apparatus for Pressure Control of Glass-Making Thickness-Control Zone
WO2011085141A1 (fr) * 2010-01-07 2011-07-14 Corning Incorporated Ensemble couvercle pour dispositifs d'affichage électroniques
US8113015B2 (en) * 2009-06-17 2012-02-14 Corning Incorporated Control of the bow of a glass ribbon
CN102574720A (zh) * 2009-12-24 2012-07-11 安瀚视特股份有限公司 玻璃板制造方法和玻璃板制造装置
EP2548851A1 (fr) * 2010-10-19 2013-01-23 Nippon Electric Glass Co., Ltd. Procédé de fabrication de film en verre en forme de bande, et dispositif pour fabriquer le film en verre en forme de bande
WO2013042379A1 (fr) * 2011-09-21 2013-03-28 ＡｖａｎＳｔｒａｔｅ株式会社 Procédé et dispositif de fabrication de feuille de verre
TWI481571B (zh) * 2009-07-13 2015-04-21 Asahi Glass Co Ltd Manufacture method and manufacturing apparatus for glass plate
KR101825438B1 (ko) 2010-02-12 2018-02-05 니폰 덴키 가라스 가부시키가이샤 유리 필름의 제조 방법

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Publication number Priority date Publication date Assignee Title
JPH02149438A (ja) * 1988-11-30 1990-06-08 Hoya Corp ガラス板の製造装置
JPH05163032A (ja) * 1991-12-10 1993-06-29 Hoya Corp ガラス板の製造装置
JP2004091244A (ja) * 2002-08-30 2004-03-25 Nippon Electric Glass Co Ltd 無アルカリガラス基板及びその製造方法
US20060236722A1 (en) * 2005-04-26 2006-10-26 Robert Delia Forming apparatus with extensions attached thereto used in a glass manufacturing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02149438A (ja) * 1988-11-30 1990-06-08 Hoya Corp ガラス板の製造装置
JPH05163032A (ja) * 1991-12-10 1993-06-29 Hoya Corp ガラス板の製造装置
JP2004091244A (ja) * 2002-08-30 2004-03-25 Nippon Electric Glass Co Ltd 無アルカリガラス基板及びその製造方法
US20060236722A1 (en) * 2005-04-26 2006-10-26 Robert Delia Forming apparatus with extensions attached thereto used in a glass manufacturing system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8113015B2 (en) * 2009-06-17 2012-02-14 Corning Incorporated Control of the bow of a glass ribbon
TWI481571B (zh) * 2009-07-13 2015-04-21 Asahi Glass Co Ltd Manufacture method and manufacturing apparatus for glass plate
CN102180588A (zh) * 2009-11-30 2011-09-14 康宁股份有限公司 用于玻璃制造厚度控制区域的压力控制的方法和设备
US9296635B2 (en) 2009-11-30 2016-03-29 Corning Incorporated Method and apparatus for pressure control of glass-making thickness-control zone
US20110126591A1 (en) * 2009-11-30 2011-06-02 Paul Gregory Chalk Method and Apparatus for Pressure Control of Glass-Making Thickness-Control Zone
US8707737B2 (en) 2009-11-30 2014-04-29 Corning Incorporated Method and apparatus for pressure control of glass-making thickness-control zone
CN102574720B (zh) * 2009-12-24 2014-11-26 安瀚视特股份有限公司 玻璃板制造方法和玻璃板制造装置
CN102574720A (zh) * 2009-12-24 2012-07-11 安瀚视特股份有限公司 玻璃板制造方法和玻璃板制造装置
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EP2548851B1 (fr) * 2010-10-19 2015-04-01 Nippon Electric Glass Co., Ltd. Procédé de fabrication de film en verre en forme de bande
EP2548851A4 (fr) * 2010-10-19 2013-10-02 Nippon Electric Glass Co Procédé de fabrication de film en verre en forme de bande, et dispositif pour fabriquer le film en verre en forme de bande
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WO2013042379A1 (fr) * 2011-09-21 2013-03-28 ＡｖａｎＳｔｒａｔｅ株式会社 Procédé et dispositif de fabrication de feuille de verre

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