WO2011106605A2 - Apparatus for making a glass article and methods - Google Patents
Apparatus for making a glass article and methods Download PDFInfo
- Publication number
- WO2011106605A2 WO2011106605A2 PCT/US2011/026184 US2011026184W WO2011106605A2 WO 2011106605 A2 WO2011106605 A2 WO 2011106605A2 US 2011026184 W US2011026184 W US 2011026184W WO 2011106605 A2 WO2011106605 A2 WO 2011106605A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molten glass
- fining chamber
- glass
- post
- fining
- Prior art date
Links
Classifications
-
- 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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/187—Stirring devices; Homogenisation with moving elements
- C03B5/1875—Stirring devices; Homogenisation with moving elements of the screw or pump-action type
-
- 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
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
Definitions
- the present invention relates generally to apparatus for making a glass article and methods, and more particularly, to apparatus and methods that stir the molten glass in a pre-fining chamber and a post-fining chamber.
- the method further includes the step of passing the molten glass from the fining chamber to a post- fining chamber, wherein a temperature of the molten glass in the post-fining chamber is lower than a temperature of the molten glass in the pre-fining chamber.
- the method further includes the steps of stirring the molten glass in the post-fining chamber and passing the quantity of molten glass from the post-fining chamber to a forming vessel to form the glass article.
- an apparatus for making a glass article includes a glass melter configured to melt a batch material into a molten glass and a pre-fining chamber configured to receive molten glass from the glass melter.
- the pre-fining chamber includes a first stirring device for stirring molten glass in the pre-fining chamber.
- the apparatus further includes a fining chamber configured to receive molten glass from the pre-fining chamber and remove a majority of the gas bubbles from the molten glass.
- the apparatus also includes a post- fining chamber configured to receive molten glass from the fining chamber.
- the post-fining chamber includes a second stirring device for stirring molten glass in the post-fining chamber, wherein the second mixing device is configured to stir the molten glass with less stir shearing than the first stirring device.
- the apparatus still further includes a forming vessel configured to receive molten glass from the post-fining chamber and form the glass article.
- FIG. 2 is an enlarged view of portions of the apparatus of FIG. 1;
- FIG. 3 is a section view along line 3-3 of FIG. 2;
- FIG. 4 is a section view along line 4-4 of FIG. 2.
- FIG. 1 is a schematic illustration of an apparatus 101 configured to make a glass article.
- the glass article can comprise a glass art piece, a glass container, a glass rod, a glass tube or other glass articles.
- the apparatus 101 may also be used to create glass articles that are desirably substantially free of gas bubbles within the glass article.
- glass articles can further include components of an optical device, such as one or more glass lenses of the optical device.
- the glass article can comprise a glass sheet, such as a glass sheet for an LCD display.
- the apparatus 101 includes a glass melter
- the molten glass 113 may have various compositions depending on the desired glass article characteristic and process considerations.
- the molten glass 113 may include volatile components provided to enhance fining of gas bubbles from the molten glass to produce a glass article substantially free of gas bubbles.
- the molten glass 113 can include volatile components such as tin oxide (Sn0 2 ) and/or boron oxide (B 2 0 3 ).
- the pre-fining chamber 115 includes a first stirring device 117 for stirring the molten glass 113 in the pre-fining chamber 115.
- the first stirring device 117 may be configured to rotate about a vertical axis along directional arrow 119 although it is contemplated that the stirring device may be rotated about an angled axis, horizontal axis or the like.
- the stirring device may orbit about an axis, such as a central axis, of the pre-fining chamber 115.
- the first stirring device 117 includes a vertical shaft 121 extending along a central axis of the pre- fining chamber 115.
- the pre-fining chamber 115 includes an inlet 129 for receiving the molten glass from the glass melter 103.
- the example inlet 129 includes an elevational height 131.
- the inlet 129 may have a circular periphery wherein the elevational height 131 comprises the diameter of the inlet 129.
- the inlet 129 may have other shapes such as polygonal (e.g., triangular, rectangular, etc.), curvilinear or other configurations.
- polygonal e.g., triangular, rectangular, etc.
- the apparatus 101 further includes a fining chamber 135 configured to receive the molten glass 113 from the pre-fining chamber 115 and remove a majority of the gas bubbles 137 from the molten glass 113.
- the fining chamber 135 may comprise an elongated horizontal tube although other chamber configurations may be provided in further examples.
- the fining chamber 135 may optionally be vented to the atmosphere.
- example embodiments may provide a fining chamber wherein essentially no vacuum is imposed on the molten glass 113 within the fining chamber 135.
- essentially no vacuum is intended to mean that the atmosphere in the fining chamber 135 has a pressure of at least 0.8 atmospheres.
- essentially no vacuum can include embodiments where light vacuum is applied while pressures below 0.8 atmospheres are avoided.
- the stirring device may be rotated about an angled axis, horizontal axis or the like.
- the stirring device may orbit about an axis, such as a central axis, of the post-fining chamber 139.
- the second stirring device 141 includes a vertical shaft 145 extending along a central axis of the post-fining chamber 139.
- the first stirring device 117 may be configured to stir the molten glass 113 with less stir shearing than the second stirring device 141.
- the second stir blade configuration includes a larger molten glass shearing surface area than a molten glass shearing surface area of the first stir-blade configuration.
- the second set of blades 149 of the second stir-blade configuration 147 includes a greater number of blades than the first set of blades 125 of the first stir-blade configuration 123.
- second stir-blade configuration 147 includes a larger molten glass shearing surface area than a molten glass shearing surface area of the first stir-blade configuration 123.
- a second motor 151 may be operably connected to rotate the vertical shaft
- the second motor 151 may be larger and/or configured to deliver more torque than the first motor 127.
- the first stirring device 117 may be configured to stir the molten glass 113 with less stir shearing than the second stirring device 141 even in examples where the first stir- blade configuration is identical or similar to the second stir-blade configuration.
- the apparatus 101 further includes a forming vessel configured to receive the molten glass from the post-fining chamber and form the glass article.
- the forming vessel can include fusion down-draw, slot draw, float, pressing, molding, rolling, injection molding and the like.
- the forming vessel can comprise an isopipe 159 configured to fusion down-draw the glass article, such as the illustrated glass ribbon 161 from the molten glass 113 by a fusion-draw technique.
- the glass me Iter 103 is typically made from a refractory material, such as refractory (e.g., ceramic) brick.
- the apparatus 110 may further include components that are typically made from platinum or platinum-containing metals such as platinum- rhodium, platinum-iridium and combinations therefore, but which may also comprise such refractory metals as molybdenum, palladium, rhenium, tantalum, titanium, tungsten, ruthenium, osmium, zirconium, and alloys thereof and/or zirconium dioxide.
- the platinum- containing components can include one or more of the pre-fining chamber 115, the fining chamber 135, the post-fining chamber 139, the delivery vessel 157, a downcomer 163 and an inlet 165 to the forming vessel.
- the platinum-containing components can also include one or more of the connecting tubes connecting the various vessels to one another.
- the molten glass 113 may be introduced into the pre-fining chamber 115 as a molten glass stream 113 wherein at least the upper 20% (represented by reference number 167) of the elevational height of the molten glass stream entering the pre-fining chamber is mixed throughout at least 75% of an elevational height 169 of the molten glass 113 within the pre-fining chamber 115.
- Providing sufficient mixing of the upper portion of the elevational height of the molten glass stream can help homogenize the glass melt by distributing the tin oxide, boron oxide, and or other fining agents throughout molten glass passing out through the outlet 133, thereby increasing the effectiveness of gas bubble removal in the fining chamber 135.
- the upper elevational 20% may have less than the average distribution of tin oxide and/or boron oxide.
- the markers 171 are more desirably dispersed throughout the exiting glass melt stream passing through the outlet 133 to the fining chamber 135. Forming a more homogeneous melt in the pre- fining chamber has the further advantage of minimizing regions of high water content in the molten glass stream. Localized high water content in the region shown in FIG. 3 with "+" markers 171 can be created, for example, when the glass melter 103 utilizes gas- oxygen burners to heat the molten glass surface.
- cord forming parts 179 may be formed that represent nonhomogeneous portions of the molten glass.
- the molten glass 113 then enters the post-fining chamber 139 wherein the molten glass is stirred with the second stirring device 141. Once the glass melt passes to the forming vessel (e.g., isopipe 159), the molten glass comprises a substantially homogeneous composition essentially free of cord-forming parts.
- the forming vessel e.g., isopipe 159
- a temperature of the molten glass in the post-fining chamber is lower than a temperature of the molten glass in the pre- fining chamber.
- the molten glass 113 may include a viscosity that is lower in the pre-fming chamber than the post-fining chamber.
- a larger motor 151 when compared to motor 127) may be used and the stir- shearing within the post-fining chamber may be higher than the stir-shearing in the pre- fming chamber.
- the molten glass may be mixed more in the post-fining chamber than the pre-fming chamber in order to sufficiently homogenize the glass melt before entering the forming vessel.
- the glass melt may then enter the forming vessel to form the glass article.
- the forming vessel comprises an isopipe 159 and the glass article comprises a glass sheet formed from a glass ribbon 161 by a fusion down-draw process.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127024813A KR101848101B1 (en) | 2010-02-25 | 2011-02-25 | Apparatus for making a glass article and methods |
JP2012555174A JP5885674B2 (en) | 2010-02-25 | 2011-02-25 | Apparatus and method for making glass articles |
CN201180010574.1A CN102770378B (en) | 2010-02-25 | 2011-02-25 | It is used for manufacturing equipment and the method for glass |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30806710P | 2010-02-25 | 2010-02-25 | |
US61/308,067 | 2010-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011106605A2 true WO2011106605A2 (en) | 2011-09-01 |
WO2011106605A3 WO2011106605A3 (en) | 2011-12-29 |
Family
ID=44507580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2011/026184 WO2011106605A2 (en) | 2010-02-25 | 2011-02-25 | Apparatus for making a glass article and methods |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5885674B2 (en) |
KR (1) | KR101848101B1 (en) |
CN (1) | CN102770378B (en) |
TW (1) | TWI494283B (en) |
WO (1) | WO2011106605A2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014116549A1 (en) * | 2013-01-24 | 2014-07-31 | Corning Incorporated | Process and apparatus for refining molten glass |
WO2014149736A1 (en) * | 2013-03-15 | 2014-09-25 | Owens-Brockway Glass Container Inc. | Apparatus for melting and refining silica-based glass |
EP2955162A1 (en) * | 2014-06-13 | 2015-12-16 | Schott AG | Method and device for producing a glass article from a glass melt |
CN109851206A (en) * | 2019-04-23 | 2019-06-07 | 蚌埠中光电科技有限公司 | The multi-functional lobby bulb apparatus of platinum channel in a kind of glass substrate manufacturing process |
CN114590994A (en) * | 2020-12-02 | 2022-06-07 | 苏州市灵通玻璃制品有限公司 | Production process of arc-shaped glass |
US11773006B1 (en) * | 2022-11-10 | 2023-10-03 | Corning Incorporated | Glasses for high performance displays |
WO2024102295A1 (en) * | 2022-11-10 | 2024-05-16 | Corning Incorporated | Glasses for high performance displays |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105377774B (en) * | 2013-12-26 | 2019-04-05 | 安瀚视特控股株式会社 | The manufacturing method and glass substrate manufacturing device of glass substrate |
JP5937704B2 (en) * | 2013-12-26 | 2016-06-22 | AvanStrate株式会社 | Glass substrate manufacturing method and glass substrate manufacturing apparatus |
CN110655303A (en) * | 2019-10-21 | 2020-01-07 | 扬州市丰泽特种电缆材料有限公司 | Clarification method for electric melting furnace |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4961772A (en) * | 1988-09-20 | 1990-10-09 | Toledo Engineering Co., Inc. | Method and apparatus for continuously melting glass and intermittently withdrawing melted glass |
WO2006026787A2 (en) * | 2004-08-31 | 2006-03-09 | Corning Incorporated | Method and apparatus for homogenizing a glass melt |
US20070022780A1 (en) * | 2005-07-28 | 2007-02-01 | House Keith L | Method of increasing the effectiveness of a fining agent in a glass melt |
US20090282872A1 (en) * | 2006-01-05 | 2009-11-19 | Masahiro Tomamoto | Molten Glass Supply Apparatus and Process for Producing Glass Formed Article |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3252975B2 (en) * | 1992-01-30 | 2002-02-04 | 旭硝子株式会社 | Glass manufacturing method and apparatus |
KR100444628B1 (en) * | 1995-11-21 | 2004-11-03 | 아사히 가라스 가부시키가이샤 | Method and apparatus for refining molten glass |
JP4183202B2 (en) * | 1995-11-21 | 2008-11-19 | 旭硝子株式会社 | Glass product manufacturing method and apparatus |
JPH11139833A (en) * | 1997-11-05 | 1999-05-25 | Asahi Glass Co Ltd | Production of glass |
US7854144B2 (en) * | 2005-07-28 | 2010-12-21 | Corning Incorporated | Method of reducing gaseous inclusions in a glass making process |
JP4720777B2 (en) * | 2007-04-24 | 2011-07-13 | 旭硝子株式会社 | Glass manufacturing apparatus and manufacturing method |
-
2011
- 2011-02-22 TW TW100105847A patent/TWI494283B/en not_active IP Right Cessation
- 2011-02-25 CN CN201180010574.1A patent/CN102770378B/en not_active Expired - Fee Related
- 2011-02-25 KR KR1020127024813A patent/KR101848101B1/en active IP Right Grant
- 2011-02-25 JP JP2012555174A patent/JP5885674B2/en not_active Expired - Fee Related
- 2011-02-25 WO PCT/US2011/026184 patent/WO2011106605A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4961772A (en) * | 1988-09-20 | 1990-10-09 | Toledo Engineering Co., Inc. | Method and apparatus for continuously melting glass and intermittently withdrawing melted glass |
WO2006026787A2 (en) * | 2004-08-31 | 2006-03-09 | Corning Incorporated | Method and apparatus for homogenizing a glass melt |
US20070022780A1 (en) * | 2005-07-28 | 2007-02-01 | House Keith L | Method of increasing the effectiveness of a fining agent in a glass melt |
US20090282872A1 (en) * | 2006-01-05 | 2009-11-19 | Masahiro Tomamoto | Molten Glass Supply Apparatus and Process for Producing Glass Formed Article |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014116549A1 (en) * | 2013-01-24 | 2014-07-31 | Corning Incorporated | Process and apparatus for refining molten glass |
JP2016508477A (en) * | 2013-01-24 | 2016-03-22 | コーニング インコーポレイテッド | Process and apparatus for clarifying molten glass |
WO2014149736A1 (en) * | 2013-03-15 | 2014-09-25 | Owens-Brockway Glass Container Inc. | Apparatus for melting and refining silica-based glass |
US9637406B2 (en) | 2013-03-15 | 2017-05-02 | Owens-Brockway Glass Container Inc. | Apparatus for melting and refining silica-based glass |
EP2955162A1 (en) * | 2014-06-13 | 2015-12-16 | Schott AG | Method and device for producing a glass article from a glass melt |
CN109851206A (en) * | 2019-04-23 | 2019-06-07 | 蚌埠中光电科技有限公司 | The multi-functional lobby bulb apparatus of platinum channel in a kind of glass substrate manufacturing process |
CN114590994A (en) * | 2020-12-02 | 2022-06-07 | 苏州市灵通玻璃制品有限公司 | Production process of arc-shaped glass |
CN114590994B (en) * | 2020-12-02 | 2023-09-05 | 苏州市灵通玻璃制品有限公司 | Production process of arc-shaped glass |
US11773006B1 (en) * | 2022-11-10 | 2023-10-03 | Corning Incorporated | Glasses for high performance displays |
WO2024102295A1 (en) * | 2022-11-10 | 2024-05-16 | Corning Incorporated | Glasses for high performance displays |
Also Published As
Publication number | Publication date |
---|---|
KR20130024889A (en) | 2013-03-08 |
JP2013521205A (en) | 2013-06-10 |
KR101848101B1 (en) | 2018-05-28 |
WO2011106605A3 (en) | 2011-12-29 |
JP5885674B2 (en) | 2016-03-15 |
TW201134773A (en) | 2011-10-16 |
TWI494283B (en) | 2015-08-01 |
CN102770378A (en) | 2012-11-07 |
CN102770378B (en) | 2016-08-31 |
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