JP7025720B2 - ガラス物品の製造方法及びガラス溶融炉 - Google Patents
ガラス物品の製造方法及びガラス溶融炉 Download PDFInfo
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- JP7025720B2 JP7025720B2 JP2017246497A JP2017246497A JP7025720B2 JP 7025720 B2 JP7025720 B2 JP 7025720B2 JP 2017246497 A JP2017246497 A JP 2017246497A JP 2017246497 A JP2017246497 A JP 2017246497A JP 7025720 B2 JP7025720 B2 JP 7025720B2
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- Prior art keywords
- glass
- melting furnace
- glass melting
- atmosphere
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- 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.)
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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
-
- 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
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
-
- 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
- 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
- C03B5/173—Apparatus for changing the composition of the molten glass in glass furnaces, e.g. for colouring the molten glass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Furnace Details (AREA)
- Glass Melting And Manufacturing (AREA)
- Glass Compositions (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
β-OH=(1/X)log10(T1/T2)
X:板ガラスの厚み(mm)
T1:参照波長3846cm-1における透過率(%)
T2:水酸基吸収波長3600cm-1付近における最小透過率(%)
2 清澄室
3 均質化室
4 ポット
5 成形装置
6~9 移送管
10 底壁部
11 電極
12 スクリューフィーダ
13 煙道
14 ガス供給口
Gm 溶融ガラス
Gr ガラス原料
Claims (6)
- ガラス溶融炉内でガラス原料を電気加熱のみで連続的に溶融して溶融ガラスを形成するガラス溶融工程と、前記溶融ガラスからガラス物品を成形する成形工程とを備えたガラス物品の製造方法であって、
前記ガラス溶融工程では、前記ガラス溶融炉内の雰囲気の水蒸気量を調整すると共に、前記ガラス溶融炉外に対して前記ガラス溶融炉内を減圧し、前記ガラス溶融炉内の雰囲気の圧力をP1と、前記ガラス溶融炉外の雰囲気の圧力をP2とした場合に、圧力差(P1-P2)を-10mmH 2 O以上に調整することを特徴とするガラス物品の製造方法。 - 前記ガラス溶融工程では、前記ガラス溶融炉内の雰囲気の水蒸気量が15g/Nm3以下であることを特徴とする請求項1に記載のガラス物品の製造方法。
- 前記ガラス溶融工程では、乾燥ガスを前記ガラス溶融炉内に供給して前記ガラス溶融炉内の雰囲気の水蒸気量を調整することを特徴とする請求項1又は2に記載のガラス物品の製造方法。
- 前記ガラス溶融工程では、前記溶融ガラスは、前記ガラス原料に覆われずに液面が露出した露出部を有し、
前記乾燥ガスは、前記露出部に対応する位置で前記ガラス溶融炉内に供給されることを特徴とする請求項3に記載のガラス物品の製造方法。 - 前記成形工程では、ダウンドロー法により前記溶融ガラスから板ガラスを成形することを特徴とする請求項1~4のいずれか1項に記載のガラス物品の製造方法。
- 前記溶融ガラスが、無アルカリガラスであることを特徴とする請求項1~5のいずれか1項に記載のガラス物品の製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017246497A JP7025720B2 (ja) | 2017-12-22 | 2017-12-22 | ガラス物品の製造方法及びガラス溶融炉 |
CN201880081613.9A CN111566055A (zh) | 2017-12-22 | 2018-11-28 | 玻璃物品的制造方法以及玻璃熔融炉 |
US16/955,229 US20200331789A1 (en) | 2017-12-22 | 2018-11-28 | Method for producing glass article and glass-melting furnace |
PCT/JP2018/043733 WO2019124006A1 (ja) | 2017-12-22 | 2018-11-28 | ガラス物品の製造方法及びガラス溶融炉 |
KR1020207012903A KR102527565B1 (ko) | 2017-12-22 | 2018-11-28 | 유리 물품의 제조 방법 및 유리 용융로 |
TW107143795A TWI787409B (zh) | 2017-12-22 | 2018-12-06 | 玻璃物品的製造方法 |
Applications Claiming Priority (1)
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JP2017246497A JP7025720B2 (ja) | 2017-12-22 | 2017-12-22 | ガラス物品の製造方法及びガラス溶融炉 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019112253A JP2019112253A (ja) | 2019-07-11 |
JP7025720B2 true JP7025720B2 (ja) | 2022-02-25 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2017246497A Active JP7025720B2 (ja) | 2017-12-22 | 2017-12-22 | ガラス物品の製造方法及びガラス溶融炉 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20200331789A1 (ja) |
JP (1) | JP7025720B2 (ja) |
KR (1) | KR102527565B1 (ja) |
CN (1) | CN111566055A (ja) |
TW (1) | TWI787409B (ja) |
WO (1) | WO2019124006A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7333159B2 (ja) * | 2016-12-26 | 2023-08-24 | 日本電気硝子株式会社 | 無アルカリガラス基板の製造方法 |
WO2023099616A1 (en) * | 2021-12-03 | 2023-06-08 | Agc Glass Europe | Glass melting process with very low to zero-co2 emission |
WO2023099619A1 (en) * | 2021-12-03 | 2023-06-08 | Agc Glass Europe | Glass melting process with very low to zero-co2 emission |
WO2023099618A1 (en) * | 2021-12-03 | 2023-06-08 | Agc Glass Europe | Glass melting process with very low to zero-co2 emission |
WO2023099617A1 (en) * | 2021-12-03 | 2023-06-08 | Agc Glass Europe | Glass melting process with very low to zero-co2 emission |
Citations (3)
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JP2002128528A (ja) | 2000-08-17 | 2002-05-09 | Hoya Corp | ガラスの製造方法およびそれに用いるガラス溶融装置 |
JP2005060134A (ja) | 2003-08-08 | 2005-03-10 | Hoya Corp | 熔融ガラスの製造方法及びガラス成形体の製造方法 |
WO2016185976A1 (ja) | 2015-05-18 | 2016-11-24 | 日本電気硝子株式会社 | 無アルカリガラス基板 |
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US4919700A (en) * | 1989-01-03 | 1990-04-24 | Ppg Industries, Inc. | Vacuum refining of glassy materials with selected water content |
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TWI276611B (en) * | 2000-08-17 | 2007-03-21 | Hoya Corp | Process for producing glass and glass-melting apparatus thereof |
JP2003183031A (ja) | 2001-12-18 | 2003-07-03 | Nippon Electric Glass Co Ltd | ガラス繊維製造用電気溶融炉及び繊維用ガラスの溶融方法 |
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KR20080113192A (ko) * | 2006-03-27 | 2008-12-29 | 아사히 가라스 가부시키가이샤 | 유리 제조 방법 |
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2017
- 2017-12-22 JP JP2017246497A patent/JP7025720B2/ja active Active
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2018
- 2018-11-28 WO PCT/JP2018/043733 patent/WO2019124006A1/ja active Application Filing
- 2018-11-28 US US16/955,229 patent/US20200331789A1/en not_active Abandoned
- 2018-11-28 CN CN201880081613.9A patent/CN111566055A/zh active Pending
- 2018-11-28 KR KR1020207012903A patent/KR102527565B1/ko active IP Right Grant
- 2018-12-06 TW TW107143795A patent/TWI787409B/zh active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002128528A (ja) | 2000-08-17 | 2002-05-09 | Hoya Corp | ガラスの製造方法およびそれに用いるガラス溶融装置 |
JP2005060134A (ja) | 2003-08-08 | 2005-03-10 | Hoya Corp | 熔融ガラスの製造方法及びガラス成形体の製造方法 |
WO2016185976A1 (ja) | 2015-05-18 | 2016-11-24 | 日本電気硝子株式会社 | 無アルカリガラス基板 |
Also Published As
Publication number | Publication date |
---|---|
TWI787409B (zh) | 2022-12-21 |
JP2019112253A (ja) | 2019-07-11 |
WO2019124006A1 (ja) | 2019-06-27 |
TW201927708A (zh) | 2019-07-16 |
US20200331789A1 (en) | 2020-10-22 |
KR102527565B1 (ko) | 2023-05-02 |
CN111566055A (zh) | 2020-08-21 |
KR20200102417A (ko) | 2020-08-31 |
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