EP2013149A1 - Appareil et procede permettant de former un substrat de verre presentant une stabilite accrue sur le bord - Google Patents

Appareil et procede permettant de former un substrat de verre presentant une stabilite accrue sur le bord

Info

Publication number
EP2013149A1
EP2013149A1 EP07756018A EP07756018A EP2013149A1 EP 2013149 A1 EP2013149 A1 EP 2013149A1 EP 07756018 A EP07756018 A EP 07756018A EP 07756018 A EP07756018 A EP 07756018A EP 2013149 A1 EP2013149 A1 EP 2013149A1
Authority
EP
European Patent Office
Prior art keywords
forming
glass
edge
wedge
web portion
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Withdrawn
Application number
EP07756018A
Other languages
German (de)
English (en)
Inventor
Olus N Boratav
Steven R Burdette
Kathleen E Morse
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.)
Corning Inc
Original Assignee
Corning Inc
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 Corning Inc filed Critical Corning Inc
Publication of EP2013149A1 publication Critical patent/EP2013149A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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

Definitions

  • Molten glass 26 is fed into channel 14 by means of delivery passage 28 communicating with channel 14.
  • the feed into channel 14 may be single ended or, if desired, double ended.
  • a pair of restricting dams 30 are provided above overflow lips 18 adjacent each end of channel 14 to direct the overflow of the free surface 32 of molten glass 26 over overflow lips 18 as separate streams, and down opposed forming surface portions 20, 22 to root 24 where the separate streams, shown in chain lines, converge to form a ribbon of virgin- surfaced glass 34.
  • the ribbon is thereafter drawn by pulling rolls 35.
  • a pair of edge directors or correctors 36 is provided at each longitudinal end of the forming wedge so that an edge director extends along the vertical edge of each longitudinal end of the wedge on each side.
  • silicate glasses which are used for making display devices wet platinum poorly, in that the glass can completely separate from the platinum surface. Further, silicate glass is highly wetting on some ceramic materials, such as alumina or zircon. Thus, is may be advantageous to at least coat the precious metal (e.g. platinum) web portions with a ceramic material such as alumina and/or zircon, to increase the adhesive forces.
  • the web portions may be an integral (e.g. monolithic) part of the forming wedge, in that they are either cast or machined as a part of the forming wedge.
  • the web portion may in some cases be manufactured as a separate ceramic component and later attached to the forming wedge.
  • G is the mass flow rate over the web portion of the subsequent forming wedge
  • L is the vertical height of the converging forming surfaces of the subsequent forming wedge.
  • G r e f and L r e f are those same parameters for the existing or previous forming wedge.
  • G is typically represented as the average mass flow rate of all the web portions of a forming wedge.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Glass Compositions (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

La présente invention concerne un appareil permettant de former des substrats de verre. L'appareil possède un paramètre de conception, à savoir la hauteur verticale L des surfaces de formation convergentes comprenant l'appareil, qui est associé à l'écoulement du verre fondu sur des parties bandes de l'appareil.
EP07756018A 2006-04-28 2007-04-26 Appareil et procede permettant de former un substrat de verre presentant une stabilite accrue sur le bord Withdrawn EP2013149A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79591406P 2006-04-28 2006-04-28
PCT/US2007/010043 WO2007130298A1 (fr) 2006-04-28 2007-04-26 Appareil et procede permettant de former un substrat de verre presentant une stabilite accrue sur le bord

Publications (1)

Publication Number Publication Date
EP2013149A1 true EP2013149A1 (fr) 2009-01-14

Family

ID=38353936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07756018A Withdrawn EP2013149A1 (fr) 2006-04-28 2007-04-26 Appareil et procede permettant de former un substrat de verre presentant une stabilite accrue sur le bord

Country Status (6)

Country Link
EP (1) EP2013149A1 (fr)
JP (1) JP5281569B2 (fr)
KR (1) KR20090016564A (fr)
CN (1) CN101495417B (fr)
TW (1) TWI448437B (fr)
WO (1) WO2007130298A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100889949B1 (ko) * 2008-04-10 2009-03-20 주식회사 엠엠테크 하향식 기판 박형화장치 및 이를 이용한 박형화 시스템
CN103153909B (zh) * 2011-03-11 2016-09-07 圣戈本陶瓷及塑料股份有限公司 耐火物体、玻璃溢流形成块、以及用于玻璃物体制造的方法
KR101266699B1 (ko) 2011-03-31 2013-05-28 아반스트레이트 가부시키가이샤 유리 시트 제조 장치, 유리 시트 제조 방법 및 성형체
JP5724552B2 (ja) * 2011-04-01 2015-05-27 日本電気硝子株式会社 薄板ガラス製造装置
TWI557092B (zh) 2012-01-11 2016-11-11 聖高拜陶器塑膠公司 耐火物件及使用耐火物件形成玻璃板之方法
JP5850332B2 (ja) * 2012-03-09 2016-02-03 日本電気硝子株式会社 薄板ガラスの成形装置及びその成形方法
US8794034B2 (en) 2012-05-29 2014-08-05 Corning Incorporated Apparatus for forming glass with edge directors and methods
CN104428260B (zh) * 2012-08-24 2017-02-15 日本电气硝子株式会社 板玻璃制造装置及板玻璃制造方法
CN107257780A (zh) 2015-02-24 2017-10-17 圣戈本陶瓷及塑料股份有限公司 耐火制品和制备方法
EP3377452B1 (fr) * 2015-11-18 2023-05-10 Corning Incorporated Appareil de formation de rubans de verre
US9840431B2 (en) * 2016-01-11 2017-12-12 Corning Incorporated Methods and apparatuses for supporting forming bodies of glass forming apparatuses
TWI750256B (zh) * 2016-11-22 2021-12-21 美商康寧公司 用於連續玻璃帶成形的成形體及包含成形體的玻璃成形裝置
WO2019104039A2 (fr) 2017-11-22 2019-05-31 Corning Incorporated Appareils comprenant des dispositifs directeurs de bord pour former des rubans de verre

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451798A (en) * 1966-04-04 1969-06-24 Corning Glass Works Sheet glass edge control device
US3537834A (en) * 1968-08-07 1970-11-03 Corning Glass Works Maintaining sheet glass width
US3541798A (en) * 1969-04-18 1970-11-24 Harry Schnabel Jr Method and structure for shoring a lateral face of an excavation
JPS63151633A (ja) * 1986-12-15 1988-06-24 Hoya Corp 板ガラスの製造装置
KR100639848B1 (ko) * 2001-12-21 2006-10-30 코닝 인코포레이티드 오버플로우 다운드로우 용융공정을 통한 시트 유리의제조방법
TWI317352B (en) * 2005-02-24 2009-11-21 Corning Inc Apparatua and method for making a glass sheet
WO2006091389A2 (fr) * 2005-02-24 2006-08-31 Corning Incorporated Appareil et procede pour la fabrication d'une feuille de verre
US7409839B2 (en) * 2005-04-29 2008-08-12 Corning Incorporated Method and apparatus for making a glass sheet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007130298A1 *

Also Published As

Publication number Publication date
JP5281569B2 (ja) 2013-09-04
CN101495417A (zh) 2009-07-29
KR20090016564A (ko) 2009-02-16
JP2009535290A (ja) 2009-10-01
WO2007130298A1 (fr) 2007-11-15
CN101495417B (zh) 2012-09-26
TWI448437B (zh) 2014-08-11
TW200806590A (en) 2008-02-01

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