WO2016170634A1 - Procédé pour la fabrication de verre flotté - Google Patents

Procédé pour la fabrication de verre flotté Download PDF

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Publication number
WO2016170634A1
WO2016170634A1 PCT/JP2015/062312 JP2015062312W WO2016170634A1 WO 2016170634 A1 WO2016170634 A1 WO 2016170634A1 JP 2015062312 W JP2015062312 W JP 2015062312W WO 2016170634 A1 WO2016170634 A1 WO 2016170634A1
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WO
WIPO (PCT)
Prior art keywords
glass
float
bath
molten metal
glass ribbon
Prior art date
Application number
PCT/JP2015/062312
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English (en)
Japanese (ja)
Inventor
史朗 谷井
誠二 東
鈴木　祐一
Original Assignee
旭硝子株式会社
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 旭硝子株式会社 filed Critical 旭硝子株式会社
Priority to CN201580078995.6A priority Critical patent/CN107531541B/zh
Priority to KR1020177030154A priority patent/KR20170138441A/ko
Priority to PCT/JP2015/062312 priority patent/WO2016170634A1/fr
Publication of WO2016170634A1 publication Critical patent/WO2016170634A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B18/00—Shaping glass in contact with the surface of a liquid
    • C03B18/02—Forming sheets
    • C03B18/20—Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B18/00—Shaping glass in contact with the surface of a liquid
    • C03B18/02—Forming sheets
    • C03B18/18—Controlling or regulating the temperature of the float bath; Composition or purification of the float bath
    • 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 method for producing float glass.
  • molten glass is continuously supplied to a horizontal bath surface of molten tin to form a belt-like glass (usually referred to as a glass ribbon). Pull up from the outlet side of the molten metal bath and pull out of the molten metal bath. Next, this glass ribbon is transported by a transport roll (lift-out roll), carried into a slow cooling furnace, slowly cooled while moving in the slow cooling furnace, and cut into a required length by a cutting device in the next process, thereby forming a plate shape The float glass is manufactured.
  • a transport roll lift-out roll
  • one surface of the glass is formed by a molten metal bath surface, and the other surface of the glass is formed by spreading the molten glass on the molten metal. It is known as a production method suitable for mass production. For this reason, the float process is widely applied to the production of flat glass such as automotive glass and display glass.
  • FIG. 3 shows an example of a conventional float glass manufacturing apparatus applied to this type of float process.
  • the manufacturing apparatus of this example includes a float bath 101 including a molten metal bath 100 of tin, a dross box 102 installed on the downstream side of the float bath 101, and a slow cooling furnace 103.
  • a plurality of lift-out rolls 105 are installed horizontally inside the dross box 102, and a plurality of layer rolls 106 are installed horizontally inside the slow cooling furnace 103 (see Patent Document 1).
  • the molten glass is supplied to the bath surface of the molten metal bath 100, stretched to a necessary thickness and width, and then the glass ribbon 108 is pulled out by the pulling force of the lift-out roll 105, Can be transported.
  • the formation of tin oxide on the liquid surface of the molten metal bath 100 of tin causes the adhesion of tin droplets when the glass ribbon 108 is pulled up.
  • the formation of tin oxide is caused by oxygen (O 2 ) may be caused by leakage.
  • O 2 oxygen
  • the present inventors have clarified that the conventional reductive decomposition of tin oxide by supplying hydrogen gas has an insufficient effect of suppressing the adhesion of tin droplets to the glass ribbon 108 in the take-off portion. For example, even if the use of float glass is a building application or the like, a level of tin droplet adhesion that is not regarded as a problem is not permitted in recent electronic applications and the like.
  • the present invention has been made in view of the above points, and an object of the present invention is to provide a method for producing a float glass in which a float glass in which the adhesion of tin droplets is sufficiently suppressed can be obtained.
  • the inventors of the present invention have made oxidation in the surface of the tin bath by making the inside of the float bath a specific atmosphere supplied with acetylene (C 2 H 2 ).
  • the present inventors have found that the decomposition rate of tin can be improved and the effect of decomposing oxygen that causes tin oxide to be produced can be obtained.
  • the present invention provides the following (1) to (4).
  • a molten metal bath which is a tin bath provided in a float bath, and formed into a glass ribbon, and the glass ribbon is pulled up from the liquid surface of the molten metal bath and is removed from the float bath.
  • FIG. 1 is a configuration diagram illustrating a float glass manufacturing apparatus 1 according to the present embodiment.
  • FIG. 2 is an enlarged configuration diagram illustrating the float bath 2 of the float glass manufacturing apparatus 1.
  • FIG. 3 is a configuration diagram illustrating an example of a conventional float glass manufacturing apparatus.
  • FIG. 1 is a configuration diagram illustrating a float glass manufacturing apparatus 1 according to the present embodiment.
  • illustration of a part of the structure of the float glass manufacturing apparatus 1 (hereinafter, also simply referred to as “manufacturing apparatus 1”) is omitted.
  • the manufacturing apparatus 1 causes the molten glass G supplied to the float bath 2 to flow along the surface of the molten metal bath 3 held in the float bath 2 to form a strip-shaped glass ribbon 5.
  • the glass ribbon 5 is drawn out by a lift-out roll 7 provided in the dross box section 6.
  • the glass ribbon 5 is taken out from the outlet portion of the dross box portion 6, drawn into the slow cooling furnace 10 by the layer roll 9, cooled, washed, and then cut into a predetermined dimension. The Thus, a float glass having a desired size is obtained.
  • the molten glass G sent from the melting furnace (not shown) through the supply passage 11 is supplied to the inlet portion 2 a of the float bath 2 through a lip 12 provided at the end portion of the supply passage 11. .
  • a tool 13 for adjusting the flow of the molten glass G is installed so as to be movable up and down.
  • the supply passage 11 and the float bath 2 are each configured by assembling a plurality of heat-resistant materials such as refractory bricks, but are simplified in FIG.
  • the float bath 2 includes a molten metal bath 2 ⁇ / b> A filled with a molten metal bath 3, and an upper structure 2 ⁇ / b> B installed on the upper portion of the molten metal bath 2 ⁇ / b> A. However, it is configured to be shielded from the external atmosphere as much as possible.
  • the float bath 2 is provided with a heater (not shown) so that the temperature in the float bath 2 can be adjusted for each region.
  • the float bath 2 can be filled with a molten metal bath 3 of tin (Sn).
  • the tin bath constituting the molten metal bath 3 contains, for example, about 0.3 mass% of lead (Pb), zinc (Zn), iron (Fe), nickel (Ni), etc. as inevitable impurities. May be.
  • a front lintel 15 which is a front wall is formed, and the upper part of the front lintel 15 is connected to the ceiling wall 16.
  • a rear end wall 17 is provided on the downstream end side of the float bath 2 so as to be connected to the ceiling wall 16, and an outlet portion 18 of the glass ribbon 5 is formed at a position near the liquid surface of the molten metal bath 3 on the rear end wall 17.
  • the upper structure 2 ⁇ / b> B is configured by the front lintel 15, the ceiling wall 16, and the rear end wall 17.
  • the upper structure 2B is provided with a pipe (not shown), and a reducing mixed gas composed of hydrogen and nitrogen is supplied from this pipe, so that the internal space of the float bath 2 is always maintained in a reducing atmosphere at atmospheric pressure or higher.
  • the reducing atmosphere gas inside the float bath 2 slightly flows out to the dross box 6 side from the outlet 18 from which the glass ribbon 5 is drawn.
  • the dross box portion 6 provided on the downstream side of the float bath 2 includes a lower casing 6A and an upper casing 6B.
  • three lift-out rolls 7 are horizontally provided at equal intervals on the lower casing 6A.
  • the lift-out roll 7 is generally composed of a roll body portion made of, for example, quartz and a shaft that supports the roll body portion.
  • the number of liftout rolls 7 is not limited to three as in this embodiment, and any number of liftout rolls 7 may be provided as long as the glass ribbon 5 can be conveyed to the slow cooling furnace 10 side.
  • the lower casing 6A has a side wall 6a on the float bath 2 side and a side wall 6b on the slow cooling furnace 10 side on the bottom wall 6c, and other side walls (not shown) standing on both sides in the width direction of the side wall 6a and the side wall 6b. It is comprised in the box shape which the upper surface side of each side wall opened.
  • a graphite seal block 21 and a wall-shaped pedestal 22 are disposed in order to block the air flow between the molten metal bathtub 2A and the slow cooling furnace 10.
  • the seal block 21 is installed on the pedestal 22 so that the upper surface thereof is in contact with the roll surface of the lift-out roll 7, and the seal block 21 is partitioned so as to be somewhat airtight with the peripheral surface of the lift-out roll 7. Yes.
  • the pedestal 22 is formed in a wall shape from a thick metal piece such as ductile cast iron, and is provided so as to partition the inside of the lower casing 6A.
  • an inert gas such as nitrogen
  • a reducing gas such as hydrogen
  • a mixed gas thereof a non-oxidizing gas
  • a non-oxidizing gas such as a supply pipe 23
  • the non-oxidizing gas ejected from the supply pipe 23 is preferably ejected after preheating to 400 to 600 ° C. This is to prevent the glass ribbon 5 from being locally cooled by the ejection of the non-oxidizing gas.
  • the dross box section 6 is provided with a heater (not shown) so that the temperature of the glass ribbon 5 can be adjusted.
  • the upper casing 6B of the dross box section 6 is configured as a steel sealing gate, and has a ceiling wall 24 installed between the float bath 2 and the slow cooling furnace 10, and a stainless steel drape 25 suspended from the ceiling wall 24. And is installed on the upper side of the lower casing 6A.
  • the plurality of drapes 25 depending on the ceiling wall 24 are arranged along the upper side of the contact position between the three lift-out rolls 7 and the glass ribbon 5 moving above. That is, these drapes 25 are arranged above the central axis of the lift-out roll 7 so as to extend over the entire length of the lift-out roll 7, and partition the internal space of the upper casing 6B into a plurality.
  • a plurality of layer rolls 9 are installed horizontally in the slow cooling furnace 10, and the glass ribbon 5 that has moved through the dross box 6 can be conveyed through the slow cooling furnace 10 by the plurality of layer rolls 9.
  • FIG. 2 is an enlarged configuration diagram illustrating the float bath 2 of the float glass manufacturing apparatus 1.
  • the float bath 2 has a region (take-off portion) TO in which the glass ribbon 5 is pulled up from the liquid surface of the molten metal bath 3 and separated. That is, the take-off portion TO indicates a position where the glass ribbon 5 is separated from the liquid surface when the glass ribbon 5 is continuously pulled up from the liquid surface of the molten metal bath 3.
  • the float bath 2 is provided with a heater (not shown), and is adjusted so that the temperature in the float bath 2 gradually decreases from the upstream side toward the take-off portion TO on the downstream side. Has been. This is because a certain degree of hardness is required to pull up the glass ribbon 5 at the take-off portion TO.
  • the temperature in the float bath 2 is over 600 ° C. throughout the region, and the temperature of the take-off portion TO is preferably over 600 ° C.
  • the temperature in the float bath 2 (including the temperature of the take-off portion TO) is a temperature including not only glass (molten glass G and glass ribbon 5) but also the surrounding atmosphere. Can be measured.
  • the bathtub rear end wall 2Aa is provided on the downstream end side of the molten metal bathtub 2A constituting the float bath 2 so as to form the outlet portion 18 of the glass ribbon 5 between the rear end wall 17 and the molten metal bathtub 2A. It can be said that the bathtub rear end wall 2Aa is a part of the molten metal bathtub 2A.
  • a hollow gas supply pipe 2Ab is embedded in the bathtub rear end wall 2Aa.
  • the gas supply pipe 2Ab has one end connected to the outside of the float bath 2 and the other end connected to a space SP between the liquid surface of the molten metal bath 3 and the glass ribbon 5 in the take-off portion TO.
  • the number of gas supply pipes 2Ab is not limited to one, and a plurality of gas supply pipes 2Ab are provided at predetermined intervals in the width direction of the float bath 2 (the back side or the front side in FIG. 2). May be provided. Further, the gas supply pipe 2Ab may not be embedded in the bathtub rear end wall 2Aa.
  • gas supply pipe 2Ac similar to gas supply pipe 2Ab is arrange
  • the end face of the gas supply pipe 2Ac is disposed on one side in the width direction of the float bath 2 (the back side in FIG. 2) at a position facing the space SP.
  • an end face of the gas supply pipe 2Ac (not shown) is similarly disposed on the other side in the width direction of the float bath 2 (front side in FIG. 2).
  • the gas sent from one end of the gas supply pipe 2Ab and the gas supply pipe 2Ac can be discharged from the other end and supplied to the space SP.
  • a gas containing acetylene (C 2 H 2 ) is supplied into the float bath 2 using the gas supply pipe 2Ab and the gas supply pipe 2Ac, and preferably the float bath 2 A gas containing acetylene (C 2 H 2 ) is supplied to the space SP in the take-off portion TO.
  • soda-lime glass and an alkali free glass are mentioned, An alkali free glass is preferable.
  • the alkali-free glass include SiO 2 : 50 to 73%, Al 2 O 3 : 10.5 to 24%, B 2 O 3 : 0 to 12%, MgO in terms of mass percentage based on oxide. : 0-8%, CaO: 0-14.5%, SrO: 0-24%, BaO: 0-13.5%, MgO + CaO + SrO + BaO: 8-29.5%, and ZrO 2 : 0-5% An alkali-free glass to be contained is mentioned.
  • the oxide-based mass percentage display is SiO 2 : 58 to 66%, Al 2 O 3 : 15 to 22%, B 2 O 3 : 5 to An alkali-free glass containing 12%, MgO: 0 to 8%, CaO: 0 to 9%, SrO: 3 to 12.5%, BaO: 0 to 2%, and MgO + CaO + SrO + BaO: 9 to 18% is preferable.
  • the oxide-based mass percentage display is SiO 2 : 54 to 73, Al 2 O 3 : 10.5 to 22.5%, B 2 O 3 : 0 to 5 Preferred is an alkali-free glass containing 5%, MgO: 0 to 8%, CaO: 0 to 9%, SrO: 0 to 16%, BaO: 0 to 2.5%, and MgO + CaO + SrO + BaO: 8 to 26%. .
  • molten glass G is supplied from the melting furnace to the supply passage 11, and the molten metal bath 3 at the inlet 2 a of the float bath 2 is adjusted by adjusting the flow rate of the molten glass G flowing on the lip 12 by the amount of damming of the twill 13.
  • Molten glass G is supplied on top.
  • the molten glass G flowed on the molten metal bath 3 is formed into a strip-like glass ribbon 5 having a predetermined width and a predetermined thickness.
  • the glass ribbon 5 is pulled up from the liquid level of the molten metal bath 3 by the lift-out roll 7 and moved to the dross box 6 side, and then the glass ribbon 5 is cooled while being conveyed through the slow cooling furnace 10 by the layer roll 9. .
  • the glass ribbon 5 having a desired width and length can be manufactured by cutting the glass ribbon 5 into a length and a width necessary for the cutting step.
  • the glass ribbon 5 When supplying the molten glass G to the molten metal bath 3 and forming it into the glass ribbon 5, nitrogen gas and hydrogen gas are sent into the float bath 2 from a pipe (not shown) provided in the upper structure 2B, and a reducing atmosphere.
  • the glass ribbon 5 is formed by gradually lowering the temperature so that the downstream side becomes a low temperature by controlling a heater (not shown).
  • the temperature of the take-off portion TO exceeds 600 ° C.
  • acetylene (C 2 H 2 ) is provided via the gas supply pipe 2Ab and the gas supply pipe 2Ac. It is preferable to supply a gas containing acetylene (C 2 H 2 ) to the space SP of the take-off portion TO.
  • the decomposition rate of tin oxide generated on the liquid surface of the molten metal bath 3 is improved rather than simply making the atmosphere of the hydrogen (H 2 ) gas inside the float bath 2.
  • oxygen that leaks into the float bath 2 and produces tin oxide also reacts with acetylene (C 2 H 2 ) before reacting with tin to become CO 2 or H 2 O to react with tin. No longer.
  • the reduction of tin oxide first proceeds as SnO 2 ⁇ SnO.
  • SnO can be converted to Sn even if acetylene (C 2 H 2 ) is used.
  • the reduction does not progress further.
  • SnO is reductively decomposed into Sn by setting the temperature above 600 ° C.
  • Acetylene (C 2 H 2 ) is considered to undergo reductive decomposition by acting on tin oxide after first becoming 2C + H 2 .
  • the reaction of oxygen (O 2 ) first becomes carbon monoxide (CO), and finally becomes carbon dioxide (CO 2 ).
  • the tin oxide on the liquid surface of the molten metal bath 3 is decomposed and the production of tin oxide is also suppressed, so that the transfer of tin oxide when the glass ribbon 5 is pulled up at the take-off portion TO is suppressed, As a result, the tin in the molten metal bath 3 is carried along with the tin oxide, and tin droplets are prevented from adhering to the glass ribbon 5. Then, by slowly cooling and cutting the glass ribbon 5, a float glass in which the adhesion of tin droplets is suppressed can be obtained.
  • the temperature in the float bath 2 is not particularly limited as long as it exceeds 600 ° C, and the temperature of the take-off portion TO is preferably more than 600 ° C.
  • the temperature in the float bath in particular, the temperature of the take-off portion TO is more preferably 620 ° C. or higher, more preferably 650 ° C. or higher, more preferably 700 ° C. or higher, because it is superior in the effect of decomposing tin oxide and oxygen. 750 degreeC or more is especially preferable.
  • the upper limit temperature is not particularly limited, for example, 850 ° C. or less is preferable when considering changes in surrounding metal members. Therefore, the preferred take-off portion TO can be rephrased as a region in the float bath 2 having a temperature of more than 600 ° C. and 850 ° C. or less.
  • Acetylene (C 2 H 2 ) is supplied from, for example, the gas supply pipe 2Ab and the gas supply pipe 2Ac as a mixed gas with nitrogen (N 2 ).
  • the concentration of acetylene in the mixed gas is preferably 0.5 mol% or more, more preferably 1 mol% or more, and further preferably 2 mol% or more.
  • the upper limit is not particularly limited, from the viewpoint of acetylene carbon produced during the decomposition of (C 2 H 2) (C ) are prevented from becoming aggregates, preferably 50 mol% or less.
  • Acetylene may be supplied to the entire float bath 2 from a pipe (not shown) provided in the upper structure 2B including the space SP of the take-off portion TO, but carbon adheres to the float bath 2. From the viewpoint of avoiding this, it is preferable to supply only to the space SP.
  • molten glass G is supplied to the liquid surface of a molten metal bath 3 which is a tin bath, formed into a glass ribbon 5, slowly cooled and cut, and float glass (non-alkali glass) ) Was manufactured.
  • the composition of the molten glass G is expressed in terms of mass percentage on the basis of oxides: SiO 2 : 59.70%, Al 2 O 3 : 16.90%, B 2 O 3 : 7.90%, MgO: 3. They were 27%, CaO: 4.00%, SrO: 7.69%, BaO: 0.10%, MgO + CaO + SrO + BaO: 15.06%, and contained substantially no SO 3 .
  • Examples 1-2 and Comparative Example 1 mixing of acetylene (C 2 H 2 ) and nitrogen (N 2 ) from the gas supply pipe 2Ab and the gas supply pipe 2Ac into the space SP of the take-off portion TO.
  • Gas (C 2 H 2 concentration: 2 mol%) (simply indicated as “C 2 H 2 ” in Table 1 below) was supplied.
  • a mixed gas (H 2 concentration: 2 mol%) of hydrogen (H 2 ) and nitrogen (N 2 ) is supplied from a pipe (not shown) provided in the upper structure 2B. did.
  • a heater (not shown) in the float bath 2 was controlled to vary the temperature of the take-off portion TO as shown in Table 1 below.
  • the gas species supplied to the space SP from the gas supply pipe 2Ab and the gas supply pipe 2Ac is a mixed gas of hydrogen (H 2 ) and nitrogen (N 2 ) (H 2 concentration: 2 mol%) (in Table 1 below, Float glass was produced in the same manner as in Example 1 except that it was changed to “H 2 ”.
  • the technology of the present invention can be widely applied to glass manufacturing technology in general by the float method.
  • Seal block 22 ... Base 23 ... Supply pipe 24 ... Ceiling wall 25 ... Drape 100 ... Molten metal bath 101 ... Float bath 102 ... Dross box 103 ... Slow cooling furnace 105 ... Lift out roll 106 ... Layer low 108 ... glass ribbon

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

La présente invention concerne un procédé pour la fabrication de verre flotté, grâce auquel un verre flotté peut être obtenu, pour lequel l'adhérence de gouttes d'étain est suffisamment supprimée. La présente invention concerne un procédé pour la fabrication de verre flotté par l'apport de verre fondu sur la surface d'un bain de métal en fusion, qui est un bain de flottage contenant de l'étain, pour mettre en forme le verre fondu en un ruban de verre, tirer le ruban de verre depuis la surface du bain de métal en fusion et extraire le ruban de verre du bain de flottage, puis recuire et couper le ruban de verre pour obtenir du verre flotté. Dans le procédé de l'invention pour la fabrication de verre flotté, la température à l'intérieur du bain de flottage est supérieure à 600 °C et de l'acétylène est introduit dans le bain de flottage.
PCT/JP2015/062312 2015-04-22 2015-04-22 Procédé pour la fabrication de verre flotté WO2016170634A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580078995.6A CN107531541B (zh) 2015-04-22 2015-04-22 浮法玻璃的制造方法
KR1020177030154A KR20170138441A (ko) 2015-04-22 2015-04-22 플로트 유리의 제조 방법
PCT/JP2015/062312 WO2016170634A1 (fr) 2015-04-22 2015-04-22 Procédé pour la fabrication de verre flotté

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PCT/JP2015/062312 WO2016170634A1 (fr) 2015-04-22 2015-04-22 Procédé pour la fabrication de verre flotté

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WO2020129529A1 (fr) * 2018-12-21 2020-06-25 日本電気硝子株式会社 Procédé de mesure de la température d'un article en verre, et procédé de fabrication d'article en verre

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WO2009014028A1 (fr) * 2007-07-23 2009-01-29 Asahi Glass Co., Ltd. Procédé de fabrication de verre flotté et équipement de fabrication de verre flotté
WO2014069372A1 (fr) * 2012-10-31 2014-05-08 旭硝子株式会社 Procédé de fabrication et dispositif de fabrication de verre flotté
WO2015025569A1 (fr) * 2013-08-22 2015-02-26 旭硝子株式会社 Dispositif de production de verre flotté et procédé de production de verre flotté l'utilisant
JP2015093794A (ja) * 2013-11-11 2015-05-18 旭硝子株式会社 フロートガラスの製造方法

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KR101383603B1 (ko) * 2010-06-03 2014-04-11 주식회사 엘지화학 플로트 유리 제조 장치 및 방법
CN103221352B (zh) * 2010-11-18 2015-07-29 旭硝子株式会社 玻璃板的制造装置及玻璃板的制造方法
JP5024487B1 (ja) * 2011-02-01 2012-09-12 旭硝子株式会社 磁気ディスク用ガラス基板の製造方法
CN203429048U (zh) * 2013-09-16 2014-02-12 四川旭虹光电科技有限公司 适用于浮法生产线中出口唇板的冷却结构

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Publication number Priority date Publication date Assignee Title
WO2009014028A1 (fr) * 2007-07-23 2009-01-29 Asahi Glass Co., Ltd. Procédé de fabrication de verre flotté et équipement de fabrication de verre flotté
WO2014069372A1 (fr) * 2012-10-31 2014-05-08 旭硝子株式会社 Procédé de fabrication et dispositif de fabrication de verre flotté
WO2015025569A1 (fr) * 2013-08-22 2015-02-26 旭硝子株式会社 Dispositif de production de verre flotté et procédé de production de verre flotté l'utilisant
JP2015093794A (ja) * 2013-11-11 2015-05-18 旭硝子株式会社 フロートガラスの製造方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020129529A1 (fr) * 2018-12-21 2020-06-25 日本電気硝子株式会社 Procédé de mesure de la température d'un article en verre, et procédé de fabrication d'article en verre
JP2020101436A (ja) * 2018-12-21 2020-07-02 日本電気硝子株式会社 ガラス物品の温度測定方法及び製造方法
JP7324416B2 (ja) 2018-12-21 2023-08-10 日本電気硝子株式会社 ガラス物品の温度測定方法及び製造方法

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KR20170138441A (ko) 2017-12-15
CN107531541A (zh) 2018-01-02

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