EP1753698A1 - Procede et dispositif d'affinage et d'homogeneisation du verre et produits obtenus a l'aide de ce procede - Google Patents
Procede et dispositif d'affinage et d'homogeneisation du verre et produits obtenus a l'aide de ce procedeInfo
- Publication number
- EP1753698A1 EP1753698A1 EP05766619A EP05766619A EP1753698A1 EP 1753698 A1 EP1753698 A1 EP 1753698A1 EP 05766619 A EP05766619 A EP 05766619A EP 05766619 A EP05766619 A EP 05766619A EP 1753698 A1 EP1753698 A1 EP 1753698A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glass
- compartment
- rotation
- refining
- molten
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/18—Stirring devices; Homogenisation
- C03B5/187—Stirring devices; Homogenisation with moving elements
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/225—Refining
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/225—Refining
- C03B5/2252—Refining under reduced pressure, e.g. with vacuum refiners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/225—Refining
- C03B5/2255—Refining by centrifuging
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133302—Rigid substrates, e.g. inorganic substrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31—Surface property or characteristic of web, sheet or block
Definitions
- This operation consists in eliminating as much as possible gaseous inclusions of various sizes, called “broths”, bubbles or “chips”, the presence of which in the final product is often strictly controlled and sometimes prohibitive.
- gaseous inclusions of various sizes, called “broths”, bubbles or “chips”, the presence of which in the final product is often strictly controlled and sometimes prohibitive.
- the quality requirements in terms of refining are very strict for automotive applications (in particular windshields, which must ensure perfect visibility), and even more stringent for applications of flat glass in the electronic field, in particular as flat screen substrates such as liquid crystal screens (LCD), the presence of gaseous inclusions can then disturb the electrical operation and / or deform certain pixels constituting the image.
- These gas inclusions have several origins. They mainly come from the air trapped between the grains of the pulverulent matter and from degassing due to certain chemical reactions occurring during the glass melting step.
- the molten glass is preferably brought back to a substantially atmospheric pressure by the effect of its own gravity, an effect possibly coupled with an effect of centrifugal force, and then flows out of the mobile device in rotation. towards a forming stage.
- This step of the process is carried out in the lower zone or cavity, preferably cylindrical, located under the vacuum compartment, and at the lower end of which is located the or each glass outlet orifice.
- the rotation plays a role of homogenization until the step of removing the glass from the rotating device. It has in fact been observed that the shear stresses undergone by the glass due to the rotation considerably increase the chemical homogeneity of the glass, this much more effectively than can be done by homogenization by means of mechanical agitators sometimes called “stirrers”. ". In addition, a beneficial effect on the refining is also observed due to these same shear stresses, manifested by a fragmentation of the bubbles still present in a multitude of small invisible or easily absorbable bubbles in the glass. Above 500 revolutions / minute, the feasibility on an industrial scale is however compromised.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
- Glass Melting And Manufacturing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0451047A FR2870842B1 (fr) | 2004-05-27 | 2004-05-27 | Procede et dispositif de fabrication du verre et produits obtenus a l'aide de ce procede |
PCT/FR2005/050354 WO2005118493A1 (fr) | 2004-05-27 | 2005-05-24 | Procede et dispositif d'affinage et d'homogeneisation du verre et produits obtenus a l'aide de ce procede |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1753698A1 true EP1753698A1 (fr) | 2007-02-21 |
Family
ID=34947288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05766619A Withdrawn EP1753698A1 (fr) | 2004-05-27 | 2005-05-24 | Procede et dispositif d'affinage et d'homogeneisation du verre et produits obtenus a l'aide de ce procede |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080187686A1 (zh) |
EP (1) | EP1753698A1 (zh) |
JP (1) | JP2008500255A (zh) |
KR (1) | KR20070015212A (zh) |
CN (1) | CN101023036B (zh) |
FR (1) | FR2870842B1 (zh) |
TW (1) | TW200607773A (zh) |
WO (1) | WO2005118493A1 (zh) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5435267B2 (ja) | 2008-10-01 | 2014-03-05 | 日本電気硝子株式会社 | ガラスロール、ガラスロールの製造装置、及びガラスロールの製造方法 |
CN105110633A (zh) * | 2008-12-18 | 2015-12-02 | 圣戈本陶瓷及塑料股份有限公司 | 套管块 |
DE102009000785B4 (de) * | 2009-02-11 | 2015-04-02 | Schott Ag | Verfahren und Vorrichtung zur Herstellung von Glas |
US8613806B2 (en) * | 2010-08-30 | 2013-12-24 | Corning Incorporated | Method for eliminating carbon contamination of platinum-containing components for a glass making apparatus |
CN103232160B (zh) * | 2012-06-05 | 2018-07-24 | 杨德宁 | 一种具有低热膨胀系数的平板玻璃及其制造工艺 |
CN103145333A (zh) * | 2012-06-05 | 2013-06-12 | 杨德宁 | 低热膨胀系数的玻璃、制备工艺及其玻璃制品 |
CN102928451A (zh) * | 2012-11-01 | 2013-02-13 | 白雪冰 | 玻璃熔片均匀性的检验方法 |
US9227865B2 (en) * | 2012-11-29 | 2016-01-05 | Johns Manville | Methods and systems for making well-fined glass using submerged combustion |
US9637406B2 (en) | 2013-03-15 | 2017-05-02 | Owens-Brockway Glass Container Inc. | Apparatus for melting and refining silica-based glass |
CN103833221A (zh) * | 2013-05-06 | 2014-06-04 | 杨德宁 | 一种具有低热膨胀系数的高铝平板玻璃及其制造工艺 |
CN107382030B (zh) * | 2017-09-08 | 2023-08-22 | 中建材玻璃新材料研究院集团有限公司 | 一种用于电子显示玻璃铂金通道的密封结构 |
US11001519B2 (en) | 2018-03-15 | 2021-05-11 | Owens-Brockway Glass Container Inc. | Vacuum refining of molten glass |
US10858277B2 (en) | 2018-03-15 | 2020-12-08 | Owens-Brockway Glass Container Inc. | Refining glass with reduced pressure |
US11912608B2 (en) * | 2019-10-01 | 2024-02-27 | Owens-Brockway Glass Container Inc. | Glass manufacturing |
US11370686B2 (en) | 2019-10-01 | 2022-06-28 | Owens-Brockway Glass Container Inc. | Fining submerged combustion glass |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1559203A (en) * | 1921-04-01 | 1925-10-27 | Gen Electric | Process of and apparatus for purifying fusions |
US2097502A (en) * | 1933-03-18 | 1937-11-02 | Union Carbide & Carbon Corp | Method of and apparatus for producing rods and the like of comminuted material |
AU422827B2 (en) * | 1967-10-03 | 1972-03-28 | Monzino Riotinto Of Australia Limited | Continuous degassing of metals |
AT292230B (de) * | 1968-10-15 | 1971-08-25 | Zd Avtosteklo | Verfahren zur Herstellung von glaskristallinem Tafelmaterial |
US3754886A (en) * | 1971-04-02 | 1973-08-28 | Owens Illinois Inc | Method for refining molten glass |
US3674904A (en) * | 1971-05-21 | 1972-07-04 | Amersil Inc | Furnace for making fused quartz hollow slugs |
US4040795A (en) * | 1974-06-04 | 1977-08-09 | Lothar Jung | Method for the conversion of crystalline silica raw materials into amorphous silica |
US3938981A (en) * | 1974-10-29 | 1976-02-17 | Owens-Illinois, Inc. | Method for removing gaseous inclusions from molten glass |
DE3418284A1 (de) * | 1984-05-17 | 1985-11-21 | Schott Glaswerke, 6500 Mainz | Verfahren und vorrichtung zum chargenweisen herstellen von glas |
US4738938A (en) * | 1986-01-02 | 1988-04-19 | Ppg Industries, Inc. | Melting and vacuum refining of glass or the like and composition of sheet |
JPH08211198A (ja) * | 1995-02-06 | 1996-08-20 | Nikon Corp | 中性子反射鏡 |
US5785726A (en) * | 1996-10-28 | 1998-07-28 | Corning Incorporated | Method of reducing bubbles at the vessel/glass interface in a glass manufacturing system |
GB2331359A (en) * | 1997-11-18 | 1999-05-19 | Glaverbel | Glass defect detection |
TR199902155T1 (xx) * | 1998-01-09 | 2000-04-21 | Saint-Gobain Vitrage | Cam haline gelebilen maddelerin ergitilmesi, rafinaj�na y�nelik metod. |
WO2001045900A1 (en) * | 1999-12-23 | 2001-06-28 | Rodel Holdings, Inc. | Self-leveling pads and methods relating thereto |
JP2003238174A (ja) * | 2002-02-15 | 2003-08-27 | Asahi Glass Co Ltd | フロートガラスの製造方法 |
-
2004
- 2004-05-27 FR FR0451047A patent/FR2870842B1/fr not_active Expired - Fee Related
-
2005
- 2005-05-24 CN CN2005800253983A patent/CN101023036B/zh not_active Expired - Fee Related
- 2005-05-24 US US11/597,524 patent/US20080187686A1/en not_active Abandoned
- 2005-05-24 JP JP2007514037A patent/JP2008500255A/ja active Pending
- 2005-05-24 EP EP05766619A patent/EP1753698A1/fr not_active Withdrawn
- 2005-05-24 WO PCT/FR2005/050354 patent/WO2005118493A1/fr active Application Filing
- 2005-05-24 KR KR1020067024800A patent/KR20070015212A/ko not_active Application Discontinuation
- 2005-05-26 TW TW094117301A patent/TW200607773A/zh unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2005118493A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2008500255A (ja) | 2008-01-10 |
FR2870842B1 (fr) | 2007-11-02 |
FR2870842A1 (fr) | 2005-12-02 |
KR20070015212A (ko) | 2007-02-01 |
US20080187686A1 (en) | 2008-08-07 |
CN101023036A (zh) | 2007-08-22 |
TW200607773A (en) | 2006-03-01 |
CN101023036B (zh) | 2010-07-21 |
WO2005118493A1 (fr) | 2005-12-15 |
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