JPH02221129A - Production of glass - Google Patents
Production of glassInfo
- Publication number
- JPH02221129A JPH02221129A JP3942789A JP3942789A JPH02221129A JP H02221129 A JPH02221129 A JP H02221129A JP 3942789 A JP3942789 A JP 3942789A JP 3942789 A JP3942789 A JP 3942789A JP H02221129 A JPH02221129 A JP H02221129A
- Authority
- JP
- Japan
- Prior art keywords
- molten glass
- tank
- glass
- evacuated
- platinum
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000006060 molten glass Substances 0.000 claims abstract description 24
- 229910000629 Rh alloy Inorganic materials 0.000 claims abstract description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 9
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000001174 ascending effect Effects 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000006837 decompression Effects 0.000 description 6
- 229910052703 rhodium Inorganic materials 0.000 description 6
- 239000010948 rhodium Substances 0.000 description 6
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910016006 MoSi Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- -1 aluminum compound Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
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
- 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
- C03B5/20—Bridges, shoes, throats, or other devices for withholding dirt, foam, or batch
- C03B5/205—Mechanical means for skimming or scraping the melt surface
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はガラスの製造法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for manufacturing glass.
［従来の技術］
従来、耐火物、グラファイト、アルミ化合物でガラス接
触面を構成することは特開昭６２−２３５２２号公報、
米国特許筒３，５１９，４１２号により提案されている
。気孔率をもつ耐火物及びセラミックスは減圧下におい
て泡の発生源となり新たな泡がガラス素地中に侵入して
くるという課題がある。[Prior Art] Conventionally, forming a glass contact surface with a refractory, graphite, or an aluminum compound is disclosed in Japanese Patent Application Laid-Open No. 62-23522,
It is proposed by US Pat. No. 3,519,412. Refractories and ceramics that have porosity become a source of bubbles under reduced pressure, causing new bubbles to enter the glass matrix.
また、減圧下において溶融ガラスへの熱供給する方法と
してモリブデン電極を使用した提案が米国特許筒３，５
１９，４１２号、同第３．４２９，６８４号になされて
いるが、モリブデンは酸素の存在下で酸化物を形成し昇
華する。その為、雰囲気から酸素を遮断する方法がとら
れており、維持管理が大変であるという課題がある。In addition, a proposal using a molybdenum electrode as a method of supplying heat to molten glass under reduced pressure was proposed in U.S. Patent Nos. 3 and 5.
No. 19,412 and No. 3,429,684, molybdenum forms an oxide and sublimes in the presence of oxygen. For this reason, methods are used to block oxygen from the atmosphere, which poses the problem of difficult maintenance.
［発明が解決しようとする課題］
本発明は従来技術が有していた上記課題を解消し、溶融
ガラス中に新たな泡が侵入したり、酸素を遮断する必要
がなく維持管理の容易なガラスの製造法の提供を目的と
する。[Problems to be Solved by the Invention] The present invention solves the above-mentioned problems that the prior art had, and provides a glass that is easy to maintain and manage without introducing new bubbles into the molten glass or blocking oxygen. The purpose is to provide a manufacturing method for.
［課題を解決するための手段］
本発明は減圧下で溶融ガラスの清澄を行ない、清澄した
溶融ガラスを所定形状に成形するガラスの製造法におい
て、溶融ガラスを白金又は白金ロジューム合金で構成し
た部材に接触させつつ清澄することを特徴とするガラス
の製造法を提供するものである。[Means for Solving the Problems] The present invention provides a glass manufacturing method in which molten glass is refined under reduced pressure and the clarified molten glass is formed into a predetermined shape, and a member in which the molten glass is made of platinum or a platinum rhodium alloy. The present invention provides a method for producing glass, which is characterized by fining the glass while bringing it into contact with the glass.
本発明において使用されるガラスの組成としてはＮａｔ
Ｏ−ＣａＯ−ＳｉＯｍ系ガラス、Ｂｔｕｓ−３ｉｆｔ系
ガラスを初め広範囲のものが使用される。中でもＴＶの
パネルガラス等清澄が行い難くかつ高度に清澄された品
質の要求されるものが特に適している。The composition of the glass used in the present invention is Nat.
A wide range of materials can be used, including O-CaO-SiOm glass and Btus-3ift glass. Among these, glass that is difficult to clear and requires highly refined quality, such as TV panel glass, is particularly suitable.
本発明においてはガラスとの接触面の構成部材として白
金又は白金−ロジウム合金を使用するものであり、部材
からくる泡を完全に抑制するものである。中でも白金−
ロジウム合金が好ましく、ロジウム５〜２０％含有する
白金−ロジウム合金が特に望ましい、その理由はロジウ
ムを含有することにより、部材の機械的強度を向上する
ことができるためである。ロジウム５〜２０％含有する
白金−ロジウム合金が好ましいのはロジウム含有量が５
％未満では強度の向上が充分ではなく、２０％を越える
とガラスへの着色を生ずる恐れがあるためである。以下
本発明の実施例を図面に従って説明する。In the present invention, platinum or a platinum-rhodium alloy is used as a constituent member of the contact surface with glass, and bubbles coming from the member are completely suppressed. Among them, platinum
Rhodium alloys are preferred, and platinum-rhodium alloys containing 5 to 20% rhodium are particularly desirable, because containing rhodium can improve the mechanical strength of the member. A platinum-rhodium alloy containing 5 to 20% rhodium is preferable because the rhodium content is 5%.
This is because if it is less than 20%, the strength will not be improved sufficiently, and if it exceeds 20%, the glass may be colored. Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の方法を実施例するための装置の断面図
である。図において２は減圧室、４は上昇管、５は減圧
槽、１０は下降管である。FIG. 1 is a sectional view of an apparatus for implementing the method of the invention. In the figure, 2 is a decompression chamber, 4 is an ascending pipe, 5 is a depressurizing tank, and 10 is a descending pipe.
図のように溶融ガラス１は左方より減圧室２の下方の大
気圧の槽３に流入する。槽３は上昇管４により減圧室２
内の減圧槽５に連通しており、槽３内の溶融ガラスは上
昇管を介して減圧槽に流入する。減圧槽の内面には金属
槽６が設けてあり、この金属槽及び上昇管はロジウム５
〜２０％含有する白金−ロジウム合金で構成されており
、減圧室内においては溶融ガラスはかかる合金とのみ接
触する。７はヒータでありＳｔ（： 、 ＭｏＳｉなど
で構成され減圧槽内の溶融ガラスを目標とする温度に調
整する。その外周面及び上昇管の外周面には部材８が設
けてあり、更にその外周面はケース９で覆われている。As shown in the figure, molten glass 1 flows from the left into a tank 3 at atmospheric pressure below a decompression chamber 2. The tank 3 is connected to the decompression chamber 2 by the riser pipe 4.
The molten glass in the tank 3 flows into the reduced pressure tank via the riser pipe. A metal tank 6 is provided on the inner surface of the decompression tank, and this metal tank and riser pipe are made of rhodium 5.
It is composed of a platinum-rhodium alloy containing ~20%, and the molten glass contacts only such alloy in the vacuum chamber. 7 is a heater, which is made of St(:, MoSi, etc.) and adjusts the temperature of the molten glass in the decompression tank to a target temperature.A member 8 is provided on the outer circumferential surface of the heater and on the outer circumferential surface of the riser pipe; The surface is covered with case 9.
減圧槽内の圧力はｌ／２０〜ｌ／３気圧に保持するのが
効率的脱泡を行なうために好ましい。また、減圧槽内に
おける溶融ガラスの粘度は１０”〜１０”ボイスその滞
留時間は１５〜９０分間が好ましい。For efficient defoaming, it is preferable to maintain the pressure in the vacuum tank at 1/20 to 1/3 atm. The viscosity of the molten glass in the vacuum tank is preferably 10'' to 10'', and the residence time thereof is preferably 15 to 90 minutes.
ｌＯは下降管であり脱泡された溶融ガラスは該下降管を
介して大気圧下に保持された槽１１に流入し、次いで図
面には省略されたが成形温度に調整した後、成形される
。1O is a downcomer, and the defoamed molten glass flows through the downcomer into a tank 11 maintained at atmospheric pressure, and then, although not shown in the drawing, is molded after being adjusted to the molding temperature. .
この下降管も上昇管と同様ロジウム５〜２０％含有する
白金−ロジウム合金で構成されている。Like the riser, this downcomer is made of a platinum-rhodium alloy containing 5 to 20% rhodium.
なお、図面には省略したが上昇管及び下降管も外部電源
に接続され、それ自体、電気抵抗ヒーターと作用しそこ
を通過する溶融ガラスを加熱できるようになっている。Although not shown in the drawings, the rising pipe and the descending pipe are also connected to an external power source, and act as electric resistance heaters to heat the molten glass passing through them.
また、ケーシング９と上昇管４及びケーシング９と下降
管ｌＯとのシール位置は両管の座屈を防ぐためできるだ
け下方が好ましい。Further, the sealing positions between the casing 9 and the rising pipe 4 and between the casing 9 and the downcomer pipe 1O are preferably as low as possible to prevent buckling of both pipes.
［発明の効果］
本発明によれば減圧脱泡した瀉融ガラスへ接触により新
に生成した気泡が侵入する恐れがなく、また、モリブデ
ンの如く昇華する恐れがないので、設備工程管理が大巾
に簡略される。[Effects of the Invention] According to the present invention, there is no risk of newly generated air bubbles entering the molten glass that has been degassed under reduced pressure, and there is no risk of sublimation unlike molybdenum, so equipment process management is greatly improved. It is simplified to
第１図は本発明を実施するための装置の断面図である。 １・・・溶融ガラス ２・・・減圧室 ４・・・上昇管 ５・・・減圧槽 ｌＯ・・・下降管 FIG. 1 is a cross-sectional view of an apparatus for carrying out the invention. 1...molten glass 2...Decompression chamber 4...Rising pipe 5...Reducing pressure tank lO...downcomer pipe
Claims (1)
ガラスを所定形状に成形するガラスの製造法において、
溶融ガラスを白金又は白金ロジウム合金で構成した部材
に接触させつつ清澄することを特徴とするガラスの製造 法。[Scope of Claims] 1. A method for producing glass in which molten glass is clarified under reduced pressure and the clarified molten glass is formed into a predetermined shape,
A method for producing glass, which comprises refining molten glass while bringing it into contact with a member made of platinum or a platinum-rhodium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1039427A JP2817168B2 (en) | 1989-02-21 | 1989-02-21 | Glass fining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1039427A JP2817168B2 (en) | 1989-02-21 | 1989-02-21 | Glass fining equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02221129A true JPH02221129A (en) | 1990-09-04 |
| JP2817168B2 JP2817168B2 (en) | 1998-10-27 |
Family
ID=12552698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1039427A Expired - Lifetime JP2817168B2 (en) | 1989-02-21 | 1989-02-21 | Glass fining equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2817168B2 (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0759524A1 (en) | 1995-08-21 | 1997-02-26 | Asahi Glass Company Ltd. | Pipe with external insulation for feeding a molten substance at high temperature |
| EP0775671A1 (en) | 1995-11-21 | 1997-05-28 | Asahi Glass Company Ltd. | Method and apparatus for refining molten glass under reduced pressure |
| WO1998018731A2 (en) * | 1996-10-28 | 1998-05-07 | Corning Incorporated | Method of forming glasses |
| EP0908417A3 (en) * | 1997-10-06 | 1999-06-02 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass |
| EP0939058A1 (en) * | 1998-02-27 | 1999-09-01 | Asahi Glass Company Ltd. | Method and apparatus for heating up a device for refining molten glass under reduced pressure |
| EP0967179A1 (en) | 1998-06-24 | 1999-12-29 | Asahi Glass Company Ltd. | Apparatus for refining molten glass under reduced pressure and method of its construction |
| US6308534B1 (en) | 1998-06-19 | 2001-10-30 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass |
| US6318126B1 (en) | 1998-06-26 | 2001-11-20 | Asahi Glass Company Ltd. | Vacuum degassing method for molten glass |
| US6321572B1 (en) | 1998-06-10 | 2001-11-27 | Asahi Glass Company, Ltd. | Vacuum degassing apparatus for molten glass |
| WO2002036509A1 (en) * | 2000-11-06 | 2002-05-10 | Schott Glas | Method and device for refining a glass melt using negative pressure |
| US6405564B1 (en) * | 1997-10-06 | 2002-06-18 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass |
| DE10327201A1 (en) * | 2003-06-17 | 2005-01-20 | Schott Ag | Process for refining a glass melt in a low pressure refining chamber comprises heating the refining bank in the chamber above the glass melt by a gas burner, and removing the waste gases from the chamber |
| JP2007022862A (en) * | 2005-07-19 | 2007-02-01 | Asahi Glass Co Ltd | Method for energization heating of vacuum degassing tank in vacuum degassing device, method for energization heating of vacuum degassing device, and vacuum degassing device |
| WO2008026606A1 (en) | 2006-08-29 | 2008-03-06 | Asahi Glass Company, Limited | Molten glass conduit structure and vacuum deaerator utilizing the same |
| US7377132B2 (en) | 2002-12-27 | 2008-05-27 | Asahi Glass Company, Limited | Conduit for molten glass, molten glass degassing method and molten glass degassing apparatus |
| US7454925B2 (en) | 2005-12-29 | 2008-11-25 | Corning Incorporated | Method of forming a glass melt |
| WO2009125750A1 (en) | 2008-04-07 | 2009-10-15 | 旭硝子株式会社 | Molten glass production apparatus and molten glass production method using same |
| CZ301550B6 (en) * | 1999-04-13 | 2010-04-14 | Asahi Glass Company, Limited | Vacuum degassing method for molten glass flow |
| WO2010104036A1 (en) | 2009-03-09 | 2010-09-16 | 日東紡績株式会社 | Glass-melting device for producing glass fiber and method for producing glass fiber using same |
| WO2012017963A1 (en) | 2010-08-04 | 2012-02-09 | 旭硝子株式会社 | Molten glass duct structure, vacuum defoaming device provided therewith, vacuum defoaming method of molten glass, and glass product manufacturing method |
| US8689586B2 (en) | 2009-03-09 | 2014-04-08 | Nitto Boseki Co., Ltd. | Glass-melting device for producing glass fiber and method for producing glass fiber |
| CN106865956A (en) * | 2017-03-21 | 2017-06-20 | 东旭科技集团有限公司 | For the clarifier and glass furnace of glass melts |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4872909B2 (en) * | 2005-03-08 | 2012-02-08 | 旭硝子株式会社 | Hermetic joining method of reinforced platinum hollow tube and platinum flange |
-
1989
- 1989-02-21 JP JP1039427A patent/JP2817168B2/en not_active Expired - Lifetime
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5851258A (en) * | 1995-08-21 | 1998-12-22 | Asahi Glass Company Ltd. | Backup structure for a pipe for feeding a molten substance of high temperature |
| EP0759524A1 (en) | 1995-08-21 | 1997-02-26 | Asahi Glass Company Ltd. | Pipe with external insulation for feeding a molten substance at high temperature |
| EP0775671A1 (en) | 1995-11-21 | 1997-05-28 | Asahi Glass Company Ltd. | Method and apparatus for refining molten glass under reduced pressure |
| US5849058A (en) * | 1995-11-21 | 1998-12-15 | Asahi Glass Company Ltd. | Refining method for molten glass and an apparatus for refining molten glass |
| WO1998018731A2 (en) * | 1996-10-28 | 1998-05-07 | Corning Incorporated | Method of forming glasses |
| US5785726A (en) * | 1996-10-28 | 1998-07-28 | Corning Incorporated | Method of reducing bubbles at the vessel/glass interface in a glass manufacturing system |
| WO1998018731A3 (en) * | 1996-10-28 | 1998-07-30 | Corning Inc | Method of forming glasses |
| EP1439148A3 (en) * | 1997-10-06 | 2004-10-06 | Asahi Glass Company, Limited | Apparatus for degassing molten glass under reduced pressure |
| EP0908417A3 (en) * | 1997-10-06 | 1999-06-02 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass |
| US6405564B1 (en) * | 1997-10-06 | 2002-06-18 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass |
| US6119484A (en) * | 1997-10-06 | 2000-09-19 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass |
| EP1078891A3 (en) * | 1997-10-06 | 2001-03-14 | Asahi Glass Company Ltd. | Parallel arrangement of a vacuum degassing apparatus for molten glass |
| EP0939058A1 (en) * | 1998-02-27 | 1999-09-01 | Asahi Glass Company Ltd. | Method and apparatus for heating up a device for refining molten glass under reduced pressure |
| US6202445B1 (en) | 1998-02-27 | 2001-03-20 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass and method to rise vacuum degassing apparatus temperature |
| US6321572B1 (en) | 1998-06-10 | 2001-11-27 | Asahi Glass Company, Ltd. | Vacuum degassing apparatus for molten glass |
| US6308534B1 (en) | 1998-06-19 | 2001-10-30 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass |
| EP0967179A1 (en) | 1998-06-24 | 1999-12-29 | Asahi Glass Company Ltd. | Apparatus for refining molten glass under reduced pressure and method of its construction |
| US6334336B1 (en) | 1998-06-24 | 2002-01-01 | Asahi Glass Company Ltd. | Vacuum degassing apparatus for molten glass and method for building it |
| US6318126B1 (en) | 1998-06-26 | 2001-11-20 | Asahi Glass Company Ltd. | Vacuum degassing method for molten glass |
| CZ301550B6 (en) * | 1999-04-13 | 2010-04-14 | Asahi Glass Company, Limited | Vacuum degassing method for molten glass flow |
| US7231788B2 (en) | 2000-11-06 | 2007-06-19 | Schott Ag | Method and device for refining a glass melt using negative pressure |
| WO2002036509A1 (en) * | 2000-11-06 | 2002-05-10 | Schott Glas | Method and device for refining a glass melt using negative pressure |
| US7377132B2 (en) | 2002-12-27 | 2008-05-27 | Asahi Glass Company, Limited | Conduit for molten glass, molten glass degassing method and molten glass degassing apparatus |
| DE10327201A1 (en) * | 2003-06-17 | 2005-01-20 | Schott Ag | Process for refining a glass melt in a low pressure refining chamber comprises heating the refining bank in the chamber above the glass melt by a gas burner, and removing the waste gases from the chamber |
| DE10327201B4 (en) * | 2003-06-17 | 2005-12-08 | Schott Ag | Method and apparatus for refining a glass melt in a vacuum refining chamber |
| JP2007022862A (en) * | 2005-07-19 | 2007-02-01 | Asahi Glass Co Ltd | Method for energization heating of vacuum degassing tank in vacuum degassing device, method for energization heating of vacuum degassing device, and vacuum degassing device |
| US7454925B2 (en) | 2005-12-29 | 2008-11-25 | Corning Incorporated | Method of forming a glass melt |
| US8136373B2 (en) | 2006-08-29 | 2012-03-20 | Asahi Glass Company, Limited | Conduit structure for molten glass and vacuum degassing apparatus using the conduit structure |
| WO2008026606A1 (en) | 2006-08-29 | 2008-03-06 | Asahi Glass Company, Limited | Molten glass conduit structure and vacuum deaerator utilizing the same |
| WO2009125750A1 (en) | 2008-04-07 | 2009-10-15 | 旭硝子株式会社 | Molten glass production apparatus and molten glass production method using same |
| RU2477258C2 (en) * | 2008-04-07 | 2013-03-10 | Асахи Гласс Компани, Лимитед | Device for making glass bath and method of making said bath exploiting said device |
| WO2010104036A1 (en) | 2009-03-09 | 2010-09-16 | 日東紡績株式会社 | Glass-melting device for producing glass fiber and method for producing glass fiber using same |
| US8689588B2 (en) | 2009-03-09 | 2014-04-08 | Nitto Boseki Co., Ltd. | Glass-melting device for producing glass fiber and method for producing glass fiber using same |
| US8689586B2 (en) | 2009-03-09 | 2014-04-08 | Nitto Boseki Co., Ltd. | Glass-melting device for producing glass fiber and method for producing glass fiber |
| WO2012017963A1 (en) | 2010-08-04 | 2012-02-09 | 旭硝子株式会社 | Molten glass duct structure, vacuum defoaming device provided therewith, vacuum defoaming method of molten glass, and glass product manufacturing method |
| US9073772B2 (en) | 2010-08-04 | 2015-07-07 | Asahi Glass Company, Limited | Conduit structure for molten glass, vacuum degassing apparatus, vacuum degassing method for molten glass and process for producing glass products employing said conduit structure |
| CN106865956A (en) * | 2017-03-21 | 2017-06-20 | 东旭科技集团有限公司 | For the clarifier and glass furnace of glass melts |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2817168B2 (en) | 1998-10-27 |
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