WO2016158435A1 - Dispositif de production d'article en verre et procédé de production d'article en verre - Google Patents

Dispositif de production d'article en verre et procédé de production d'article en verre Download PDF

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Publication number
WO2016158435A1
WO2016158435A1 PCT/JP2016/058435 JP2016058435W WO2016158435A1 WO 2016158435 A1 WO2016158435 A1 WO 2016158435A1 JP 2016058435 W JP2016058435 W JP 2016058435W WO 2016158435 A1 WO2016158435 A1 WO 2016158435A1
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WO
WIPO (PCT)
Prior art keywords
melting furnace
glass
molten glass
glass article
bubbles
Prior art date
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PCT/JP2016/058435
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English (en)
Japanese (ja)
Inventor
高谷　辰弥
真一 石橋
Original Assignee
日本電気硝子株式会社
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Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to CN201680004450.5A priority Critical patent/CN107108302B/zh
Priority to KR1020177019176A priority patent/KR102359814B1/ko
Publication of WO2016158435A1 publication Critical patent/WO2016158435A1/fr

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    • 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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a glass article manufacturing apparatus and a glass article manufacturing method.
  • Patent Document 1 A technique for reducing bubbles in molten glass when manufacturing a glass article from molten glass is known (Patent Document 1).
  • Patent Document 1 discloses a technique for reducing bubbles in molten glass by controlling the temperature of the molten glass.
  • the present invention has been made by finding a structure capable of reducing bubbles in molten glass flowing out from a glass melting furnace when a glass article is manufactured using a plurality of glass melting furnaces.
  • An object of the present invention is to provide a glass article manufacturing apparatus and a glass article manufacturing method that can easily reduce bubbles in molten glass flowing out of a glass melting furnace.
  • a glass article manufacturing apparatus is a glass article manufacturing apparatus for manufacturing a glass article from molten glass, the glass melting furnace including a first melting furnace and a second melting furnace, and the first A flow path for sending molten glass from the outflow part of the melting furnace to the inflow part of the second melting furnace, the inflow part of the second melting furnace is located above the outflow part of the first melting furnace, When the depth of the molten glass in the first melting furnace is 100%, the height difference between the outflow part of the first melting furnace and the inflow part of the second melting furnace is 30% or more.
  • the inflow portion of the second melting furnace is located above the outflow portion of the first melting furnace.
  • the difference in height between the outflow part of the first melting furnace and the inflow part of the second melting furnace is 30% or more.
  • the difference in height between the inflow portion of the second melting furnace and the outflow portion of the second melting furnace is: It is preferable that it is 30% or more.
  • the apparatus for manufacturing a glass article when the depth of the molten glass in the first melting furnace is 100%, the difference in height between the inner bottom of the first melting furnace and the lower end of the inflow portion of the second melting furnace. Is preferably 50% or more.
  • the liquid surface of the molten glass in the second melting furnace has the same height as the liquid surface of the molten glass in the first melting furnace, by defining the height difference as described above, The molten glass through the channel flows into the second melting furnace at a position closer to the liquid level of the molten glass in the second melting furnace. For this reason, bubbles can be more easily removed from the liquid surface of the molten glass in the second melting furnace.
  • the difference in height between the inner bottom of the first melting furnace and the upper end of the outflow portion of the first melting furnace is preferably 50% or less.
  • the glass article manufacturing apparatus preferably further includes a clarification tank, and the outflow portion of the second melting furnace is connected to the clarification tank.
  • a glass raw material is charged into the first melting furnace.
  • the first melting furnace in which the glass raw material is charged as described above bubbles are easily mixed in the molten glass.
  • the bubbles in the molten glass flowing out from the glass melting furnace can be efficiently reduced.
  • the glass article is preferably a plate glass formed using an overflow down draw method. Since the above plate glass is often required to have excellent appearance quality, it is particularly advantageous from the viewpoint of increasing the yield of the plate glass by reducing the mixing of bubbles in the plate glass.
  • the glass article manufacturing method manufactures a glass article using the glass article manufacturing apparatus described above.
  • the temperature of the molten glass in the second melting furnace is preferably higher than the temperature of the molten glass in the first melting furnace.
  • the refining agent easily acts in the molten glass in the second melting furnace.
  • a glass article manufacturing apparatus 11 that manufactures a glass article from molten glass MG (hereinafter sometimes simply referred to as a manufacturing apparatus 11) includes a first melting furnace 12 and a second melting furnace 13.
  • the glass melting furnace comprised and the 1st flow path 14 which sends the molten glass MG from the outflow part 12a of the 1st melting furnace 12 to the inflow part 13a of the 2nd melting furnace 13 are provided.
  • a glass raw material is put into the first melting furnace 12.
  • the first flow path 14 is formed by the first transfer pipe 15.
  • the manufacturing apparatus 11 includes a clarification tank 16 disposed on the downstream side of the second melting furnace 13, and a second flow path 17 that sends the molten glass MG from the outflow part 13 b of the second melting furnace 13 to the inflow part 16 a of the clarification tank 16. And.
  • the second flow path 17 is formed by the second transfer pipe 18.
  • the outflow part 12a of the first melting furnace 12, the inflow part 13a and outflow part 13b of the second melting furnace 13, and the inflow part 16a of the clarification tank 16 are all open in the molten glass MG.
  • the manufacturing apparatus 11 includes a molding unit that molds the molten glass MG. Molten glass MG is sent from the clarification tank 16 to the molding unit. In addition, between the clarification tank 16 and a shaping
  • the forming unit of the manufacturing apparatus 11 can be selected based on a forming method according to the type of the glass article.
  • Examples of the forming method include a roll-out method, an up-draw method, a float method, and a down-draw method (slot down-draw method or overflow down-draw method).
  • the first melting furnace 12 and the second melting furnace 13 are provided with a refractory melting furnace main body and a heater for heating the melting furnace main body.
  • a refractory which comprises a melting furnace main body, an alumina type inorganic material and a zirconia type inorganic material are mentioned, for example.
  • the clarification tank 16 is made of platinum or a platinum alloy.
  • Examples of the heater used in the first melting furnace 12 and the second melting furnace 13 include an electric heater and a gas burner.
  • the first transfer pipe 15, the second transfer pipe 18 and the clarification tank 16 can also be heated by a heater, but platinum directly heated by flowing an electric current directly through a wall surface made of platinum or a platinum alloy. Electrical heating is preferred.
  • the manufacturing apparatus 11 maintains the molten glass MG in the first melting furnace 12 at a predetermined depth D1 (sometimes referred to as a first melting depth), and the molten glass MG in the second melting furnace 12 has a predetermined depth.
  • the operation is performed while maintaining the depth D2 (sometimes referred to as the second melting depth).
  • the predetermined depths D1 and D2 can be preset in the first melting furnace 12 and the second melting furnace 13, respectively.
  • the height difference H1 between the outflow portion 12a of the first melting furnace 12 and the inflow portion 13a of the second melting furnace 13 is 30% or more. is there.
  • the height difference H1 is preferably 40% or more, and more preferably 50% or more.
  • the height difference H1 is a height difference between the center in the vertical direction of the outflow portion 12a of the first melting furnace 12 and the center in the vertical direction of the inflow portion 13a of the second melting furnace 13.
  • the upper limit of the height difference H1 is not particularly limited as long as it is less than 100% of the depth D1.
  • the outflow part 13b of the second melting furnace 13 is located below the inflow part 13a of the second melting furnace 13.
  • the height difference H2 between the inflow portion 13a of the second melting furnace 13 and the outflow portion 13b of the second melting furnace 13 is 30% or more. It is preferable that The height difference H2 is more preferably 40% or more, and further preferably 50% or more.
  • the height difference H2 is a height difference between the center in the vertical direction of the inflow portion 13a of the second melting furnace 13 and the center in the vertical direction of the outflow portion 13b of the second melting furnace 13.
  • the upper limit of the height difference H2 is not particularly limited as long as it is less than 100% of the depth D2.
  • the height difference H3 between the inner bottom of the first melting furnace 12 and the lower end of the inflow portion 13a of the second melting furnace 13 is 50%.
  • This height difference H3 is more preferably 60% or more, and still more preferably 70% or more.
  • the upper limit of the height difference H3 is not particularly limited as long as it is less than 100% of the depth D1.
  • the height difference H4 between the inner bottom of the first melting furnace 12 and the upper end of the outflow portion 12a of the first melting furnace 12 is 50%.
  • the height difference H4 is more preferably 40% or less, and further preferably 30% or less.
  • the lower limit of the height difference H4 is not particularly limited as long as it exceeds 0% of the depth D1.
  • the lower end of the outflow part 12 a of the first melting furnace 12 is located above the inner bottom of the first melting furnace 12.
  • the lower end of the outflow portion 13 b of the second melting furnace 13 is preferably located above the inner bottom of the second melting furnace 13.
  • the depth D1 of the molten glass MG in the first melting furnace 12 is not particularly limited, but is, for example, in the range of 600 mm or more and 2000 mm or less. Further, the depth D2 of the molten glass MG in the second melting furnace 13 is not particularly limited, but is, for example, in a range of 600 mm or more and 2000 mm or less.
  • the glass article manufacturing apparatus 11 of the present embodiment is preferably used for a plate glass manufacturing apparatus 11.
  • Examples of the application of the glass article include a display application, a touch panel application, a photoelectric conversion panel application, an electronic device application, a window glass application, a building material application, and a vehicle application.
  • the glass article manufactured by the glass article manufacturing apparatus 11 of the present embodiment examples include soda glass, soda lime glass, borosilicate glass, aluminosilicate glass, alkali-containing glass, and alkali-free glass.
  • the glass article has a glass composition in terms of mass%, SiO 2 : 50 to 80%, Al 2 O 3 : 5 to 25%, B 2 O 3 : 0 to 20%, MgO: 0 to 15%, CaO 1 to 15%, SrO: 0 to 15%, BaO: 0 to 15%, SnO 2 : 0 to 1%, containing alkali metal oxides (Na 2 O, K 2 O, and Li 2 O) It is preferable that the glass for display has a total content of less than 0.5% by mass.
  • the case where the glass raw material measured and mixed so that the glass article of the said composition is obtained is thrown into the 1st melting furnace 12 is demonstrated as an example.
  • a clarifier can be contained in a glass raw material as needed.
  • the fining agent is a compound that generates oxygen gas in the molten glass MG, and examples thereof include tin oxide and cerium oxide.
  • the glass raw material is melted in the first melting furnace 12 of the glass article manufacturing apparatus 11.
  • the molten glass MG in the first melting furnace 12 is sent to the second melting furnace 13 through the first flow path 14.
  • the molten glass MG is sent to the second melting furnace 13 until the molten glass MG has a height substantially equal to the liquid level of the molten glass MG in the first melting furnace 12.
  • the liquid surface of the molten glass MG in the 1st melting furnace 12 is adjusted so that the inflow part 13a of the 2nd melting furnace 13 may be opened in the molten glass MG.
  • the bubbles in the molten glass MG rise with time, so the bubbles contained in the molten glass MG in the first melting furnace 12 are in the inner bottom of the first melting furnace 12. The closer you get, the less.
  • the inflow portion 13 a of the second melting furnace 13 is located above the outflow portion 12 a of the first melting furnace 12. Further, when the depth D1 of the molten glass MG in the first melting furnace 12 is 100%, the height difference H1 between the outflow part 12a of the first melting furnace 12 and the inflow part 13a of the second melting furnace 13 is 30%. That's it.
  • the 1st flow path 14 conveys the molten glass MG with comparatively few bubble mixing toward the upper direction from the inside of the 1st melting furnace 12.
  • FIG. 1st flow path 14 conveys the molten glass MG with comparatively few bubble mixing toward the upper direction from the inside of the 1st melting furnace 12.
  • FIG. 1st flow path 14 since the pressure applied to the bubbles in the molten glass MG decreases, the bubbles expand in the molten glass MG. Thereby, since the bubbles in the molten glass MG are easily subjected to buoyancy, the bubbles easily rise to the liquid level in the second melting furnace 13. That is, using the first flow path 14, it is possible to send the molten glass MG with relatively little mixing of bubbles from the first melting furnace 12 to the second melting furnace 13 and to expand the bubbles in the molten glass MG. Thus, bubbles can be easily removed from the liquid surface of the molten glass MG in the second melting furnace 13.
  • the molten glass MG is sent to the clarification tank 16 through the second flow path 17.
  • bubbles in the molten glass MG can be further reduced.
  • defects due to bubbles are less likely to occur.
  • the second temperature T2 is preferably higher than the first temperature T1.
  • the third temperature T3 is preferably a temperature equal to or higher than the second temperature T2.
  • the first temperature T1 is preferably in the range of 1400 ° C. or higher and 1600 ° C. or lower.
  • the second temperature T2 is preferably 1450 ° C. or higher and 1650 ° C. or lower.
  • the third temperature T3 is preferably 1500 ° C. or higher and 1700 ° C. or lower.
  • the glass article manufacturing apparatus 11 includes a glass melting furnace including a first melting furnace 12 and a second melting furnace 13, and an outflow portion 12 a of the first melting furnace 12 to an inflow portion 13 a of the second melting furnace 13. And a first flow path 14 for sending molten glass MG.
  • the inflow portion 13 a of the second melting furnace 13 is located above the outflow portion 12 a of the first melting furnace 12.
  • the first flow path 14 it is possible to send the molten glass MG with relatively little mixing of bubbles from the first melting furnace 12 to the second melting furnace 13, and in the molten glass MG.
  • the bubbles can be easily removed from the liquid surface of the molten glass MG in the second melting furnace 13. For this reason, it becomes easy to reduce the bubbles in the molten glass MG flowing out of the glass melting furnace.
  • the outflow part 13 b of the second melting furnace 13 is located below the inflow part 13 a of the second melting furnace 13, and the depth of the molten glass MG in the second melting furnace 13.
  • the height difference H2 between the inflow portion 13a of the second melting furnace 13 and the outflow portion 13b of the second melting furnace 13 is preferably 30% or more. In this case, since the molten glass MG with relatively little mixing of bubbles can be sent downstream from the outflow portion 13b of the second melting furnace 13, the bubbles in the molten glass MG flowing out of the glass melting furnace can be reduced. It becomes easier.
  • the inner bottom of the first melting furnace 12 and the inflow portion 13a of the second melting furnace 13 are used.
  • the height difference H3 with respect to the lower end of is preferably 50% or more.
  • the height difference H3 is defined as described above.
  • the molten glass MG through the first flow path 14 flows into the second melting furnace 13 at a position closer to the liquid level of the molten glass MG in the second melting furnace 13. For this reason, bubbles can be more easily removed from the liquid surface of the molten glass MG in the second melting furnace 13. Thereby, it becomes further easier to reduce bubbles in the molten glass MG flowing out of the glass melting furnace.
  • the inner bottom of the first melting furnace 12 and the outflow part 12a of the first melting furnace 12 The height difference H4 with respect to the upper end of is preferably 50% or less.
  • the outflow part 12a of the first melting furnace 12 is closer to the inner bottom of the first melting furnace 12, bubbles in the molten glass MG flowing into the first flow path 14 can be further reduced. Thereby, it becomes further easier to reduce bubbles in the molten glass MG flowing out of the glass melting furnace.
  • the glass article manufacturing apparatus 11 further includes a clarification tank 16, and the outflow portion 13 b of the second melting furnace 13 is connected to the clarification tank 16.
  • the clarification tank 16 by sending the molten glass MG with reduced bubbles to the clarification tank 16, for example, even if the clarification time of the molten glass MG using the clarification tank 16 is shortened, the bubbles mixed into the glass article are reduced. Is possible.
  • the first melting furnace 12 is preferably charged with a glass raw material.
  • the 1st melting furnace 12 into which a glass raw material is thrown in it is easy to mix a bubble in molten glass MG.
  • the bubbles in the molten glass MG flowing out of the glass melting furnace can be efficiently reduced.
  • the glass article is preferably a plate glass formed using the overflow downdraw method.
  • a plate glass is often required to have excellent appearance quality, and thus is particularly advantageous from the viewpoint of increasing the yield of the plate glass by reducing the mixing of bubbles in the plate glass.
  • the refractory (for example, zirconia refractory) constituting the inner wall of the first melting furnace 12 is mixed into the molten glass MG, so that the molten glass MG may be contaminated.
  • the appearance of the glass article may be affected. Specifically, burrs, waviness, streaks, foreign matter, etc. are likely to occur in glass articles.
  • the molten glass MG contaminated with the refractory has a high specific gravity and therefore tends to settle in the glass melting furnace.
  • the height difference H1 between the outflow portion 12a of the first melting furnace 12 and the inflow portion 13a of the second melting furnace 13 is 30% or more.
  • the contaminated molten glass MG is difficult to be transferred from the outflow part 12 a of the first melting furnace 12 to the inflow part 13 a of the second melting furnace 13. Therefore, it becomes difficult to form a glass article from the contaminated molten glass MG. Thereby, it can suppress that a burr
  • the lower end of the outflow portion 12a of the first melting furnace 12 is lower than the inner bottom of the first melting furnace 12 in the glass article manufacturing apparatus 11. Is also preferably located above. In this case, since the contaminated molten glass MG does not easily flow into the first flow path 14, it is difficult to form a glass article from the contaminated molten glass MG. From the same viewpoint, it is preferable that the lower end of the outflow portion 13 b of the second melting furnace 13 is located above the inner bottom of the second melting furnace 13.
  • the temperature of the molten glass MG in the second melting furnace 13 is preferably higher than the temperature of the molten glass MG in the first melting furnace 12.
  • the clarifying agent easily acts in the molten glass MG in the second melting furnace 13, it becomes easier to reduce bubbles in the molten glass MG flowing out from the glass melting furnace.
  • the glass melting furnace of the said glass article manufacturing apparatus 11 is comprised from the 1st melting furnace 12 and the 2nd melting furnace 13, it can also be comprised including a 3rd melting furnace.
  • the first melting furnace 12 is configured such that a glass raw material is charged.
  • a third melting furnace is installed upstream of the first melting furnace 12, and the glass raw material is charged into the third melting furnace. May be.
  • a third melting furnace can be installed between the second melting furnace 13 and the clarification tank 16.
  • the first flow path 14 linearly extends from the outflow portion 12a of the first melting furnace 12 to the inflow portion 13a of the second melting furnace 13, but has a bent portion that bends up and down, for example. It can also be changed to a channel having a path or a horizontal part.
  • the second flow path 17 also extends linearly from the outflow part 13b of the second melting furnace 13 to the inflow part 16a of the clarification tank 16, but is changed to another shape as in the first flow path 14. You can also
  • the composition mentioned above of the glass article manufactured by the manufacturing apparatus 11 and the manufacturing method of the said glass article is an example,
  • the glass for chemical strengthening containing an alkali metal oxide may be sufficient.
  • the obtained glass article has a glass composition of mass%, SiO 2 : 50 to 80%, Al 2 O 3 : 5 to 25%, B 2 O 3 : 0 to 15%, Na 2 O
  • the glass raw material may be prepared so as to contain: 1 to 20%, and K 2 O: 0 to 10%, and charged into the first melting furnace 12.
  • the temperature of the molten glass in a 1st melting furnace was set to 1500 degreeC
  • the temperature of the molten glass in a 2nd melting furnace was set to 1600 degreeC
  • the temperature of the molten glass in a clarification tank was set to 1680 degreeC.
  • the number of bubbles per kg of glass sheet is less than 0.1: 4 points.
  • the number of bubbles per kg of plate glass is 0.1 or more and less than 0.3 ... 3 points.
  • the number of bubbles per kg of plate glass is 0.5 or more and less than 1.0 ... 2 points.
  • the number of bubbles per kg of plate glass is 1.0 or more: 1 point.
  • ⁇ Swelling reduction effect > 50 plate glasses (2500 mm ⁇ 2200 mm ⁇ 0.5 mm) were produced, and WCA (filtered centerline swell) described in JIS B0610 was measured for each plate glass using a stylus type surface shape measuring device. This measurement was based on SEMI STD D15-1296, and the cut-off at the time of measurement was 0.008 to 0.8 mm, and the length was 2500 mm in the direction perpendicular to the drawing direction of the plate glass. The maximum value of the swell at this time was determined, and the determination was made as follows based on the maximum value. When the maximum value of swell is 0.02 ⁇ m or less... 4 points.
  • Table 1 shows the results of the swell reduction effect.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Glass Melting And Manufacturing (AREA)

Abstract

La présente invention concerne un dispositif de production d'article en verre (11) comprenant un four de fusion de verre contenant un premier four de fusion (12) et un second four de fusion (13), et un premier chemin d'écoulement (14) pour envoyer le verre fondu (MG) depuis une partie d'écoulement de sortie (12a) du premier four de fusion (12) vers une partie d'écoulement d'entrée (13a) du second four de fusion (13). La partie d'écoulement d'entrée (13a) du second four de fusion (13) est située plus haut que la partie d'écoulement de sortie (12a) du premier four de fusion (12). Lorsque la profondeur (D1) du verre fondu (MG) à l'intérieur du premier four de fusion (12) est de 100 %, la différence de hauteur H1 entre la partie d'écoulement de sortie (12a) du premier four de fusion (12) et la partie d'écoulement d'entrée (13a) du second four de fusion (13) est de 30 % ou plus.
PCT/JP2016/058435 2015-03-30 2016-03-17 Dispositif de production d'article en verre et procédé de production d'article en verre WO2016158435A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680004450.5A CN107108302B (zh) 2015-03-30 2016-03-17 玻璃物品的制造装置及玻璃物品的制造方法
KR1020177019176A KR102359814B1 (ko) 2015-03-30 2016-03-17 글래스 물품의 제조 장치 및 글래스 물품의 제조 방법

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JP2015067906A JP6620411B2 (ja) 2015-03-30 2015-03-30 ガラス物品の製造装置及びガラス物品の製造方法
JP2015-067906 2015-03-30

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WO2016158435A1 true WO2016158435A1 (fr) 2016-10-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210024399A1 (en) * 2019-07-24 2021-01-28 Schott Ag Apparatus and method for producing glass ribbons

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7092021B2 (ja) * 2018-12-21 2022-06-28 日本電気硝子株式会社 ガラス物品の製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000128548A (ja) * 1998-10-28 2000-05-09 Asahi Techno Glass Corp ガラス溶融炉
JP2009522194A (ja) * 2005-12-29 2009-06-11 コーニング インコーポレイテッド ガラス溶融体を形成する方法
JP2010523457A (ja) * 2007-04-03 2010-07-15 コーニング インコーポレイテッド ガラス製造プロセスにおいてガス状含有物を減少させる方法
WO2011136148A1 (fr) * 2010-04-28 2011-11-03 旭硝子株式会社 Dispositif d'alimentation en verre fondu

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000128548A (ja) * 1998-10-28 2000-05-09 Asahi Techno Glass Corp ガラス溶融炉
JP2009522194A (ja) * 2005-12-29 2009-06-11 コーニング インコーポレイテッド ガラス溶融体を形成する方法
JP2010523457A (ja) * 2007-04-03 2010-07-15 コーニング インコーポレイテッド ガラス製造プロセスにおいてガス状含有物を減少させる方法
WO2011136148A1 (fr) * 2010-04-28 2011-11-03 旭硝子株式会社 Dispositif d'alimentation en verre fondu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210024399A1 (en) * 2019-07-24 2021-01-28 Schott Ag Apparatus and method for producing glass ribbons

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JP6620411B2 (ja) 2019-12-18
JP2016188150A (ja) 2016-11-04
KR20170133314A (ko) 2017-12-05
CN107108302B (zh) 2020-01-10
KR102359814B1 (ko) 2022-02-09
CN107108302A (zh) 2017-08-29

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