JP2018508935A - 溶融ガラスに熱エネルギーを加える方法および装置 - Google Patents
溶融ガラスに熱エネルギーを加える方法および装置 Download PDFInfo
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- JP2018508935A JP2018508935A JP2017535879A JP2017535879A JP2018508935A JP 2018508935 A JP2018508935 A JP 2018508935A JP 2017535879 A JP2017535879 A JP 2017535879A JP 2017535879 A JP2017535879 A JP 2017535879A JP 2018508935 A JP2018508935 A JP 2018508935A
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- glass
- plasma
- molten glass
- thermal plasma
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- 239000006060 molten glass Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 55
- 239000011521 glass Substances 0.000 claims abstract description 75
- 238000005352 clarification Methods 0.000 claims description 62
- 239000007789 gas Substances 0.000 claims description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 229910052718 tin Inorganic materials 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052788 barium Inorganic materials 0.000 claims description 5
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 230000005684 electric field Effects 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
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- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052712 strontium Inorganic materials 0.000 claims description 5
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 5
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- 229910052734 helium Inorganic materials 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052743 krypton Inorganic materials 0.000 claims description 3
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052754 neon Inorganic materials 0.000 claims description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 210000002381 plasma Anatomy 0.000 description 105
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- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 7
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- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
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- 230000000694 effects Effects 0.000 description 5
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- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 5
- 229910001948 sodium oxide Inorganic materials 0.000 description 5
- 239000006025 fining agent Substances 0.000 description 4
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- 239000000126 substance Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
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- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052810 boron oxide Inorganic materials 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 2
- 238000011143 downstream manufacturing Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
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- 238000009833 condensation Methods 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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- 239000012467 final product Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 238000003286 fusion draw glass process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
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- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 238000004806 packaging method and process Methods 0.000 description 1
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- 239000012495 reaction gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
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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
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/025—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by arc discharge or plasma heating
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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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/183—Stirring devices; Homogenisation using thermal means, e.g. for creating convection currents
- C03B5/185—Electric means
-
- 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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/193—Stirring devices; Homogenisation using gas, e.g. bubblers
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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
- C03B5/225—Refining
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
- C03C3/125—Silica-free oxide glass compositions containing aluminium as glass former
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
- C03C3/14—Silica-free oxide glass compositions containing boron
- C03C3/145—Silica-free oxide glass compositions containing boron containing aluminium or beryllium
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
- H05B7/08—Electrodes non-consumable
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/12—Arrangements for cooling, sealing or protecting electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/18—Heating by arc discharge
- H05B7/22—Indirect heating by arc discharge
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
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Abstract
Description
本明細書において、熱プラズマを発生する装置であって、電極と、接地電極と、電極と接地電極との間に延びる誘電性プラズマ閉じ込め器と、誘電性プラズマ閉じ込め器の周囲に延びる磁場発生器と、誘電性プラズマ閉じ込め器内にガスを送出するための注入口と、ガスを熱プラズマに変換するための、電極および接地電極に結合されたRF電流源と、熱プラズマを送出するための出口とを含む装置が開示される。
本明細書において、溶融ガラスの清澄化方法であって、本明細書に記載される装置を用いて熱プラズマを発生する工程と、溶融ガラスを清澄管に導入する工程と、溶融ガラスを熱プラズマと接触させる工程とを含む方法が開示される。本明細書において開示される様々な実施形態によれば、溶融ガラスバッチ材料は、プラズマプルームと接触させられ、それによって加熱される。本明細書において用いられる「接触」および「接触させられる」という用語、並びにそれらの変形は、溶融ガラスとプラズマとの物理的および/または熱的相互作用を意味することが意図される。例えば、ガラスは、プラズマによって物理的に接触されてもよく、および/または、ガラスはプラズマと熱的に(例えば、熱プラズマによって生じる熱と)接触してもよい。溶融ガラスは、プラズマによって直接加熱されてもよく、または、プラズマによって加熱された材料または表面との接触によって間接的に加熱されてもよい。
本明細書において用いられる「ガラスバッチ材料」という用語およびその変形は、溶融した際に反応および/または結合してガラスを生じるガラスプレカーサ粒子の混合物を意味するものである。ガラスバッチ材料は、ガラスプレカーサ粒子を組み合わせるための任意の公知の方法で調製および/または混合されてよい。例えば、特定の限定しない実施形態では、ガラスバッチ材料は、例えば、いかなる溶媒または液体も含まない、乾燥したまたは略乾燥したガラスプレカーサ粒子の混合物を含み得る。他の実施形態では、ガラスバッチ材料はスラリー(例えば、液体または溶媒が存在するガラスプレカーサ粒子の混合物)の形態であってもよい。
熱プラズマを発生する装置であって、
電極と、
接地電極と、
前記電極と前記接地電極との間に延びる誘電性プラズマ閉じ込め器と、
誘電性プラズマ閉じ込め器の周囲に延びる磁場発生器と、
前記誘電性プラズマ閉じ込め器内にガスを送出するための注入口と、
前記ガスを熱プラズマに変換するための、前記電極および前記接地電極に結合されたRF電流源と、
前記熱プラズマを送出するための出口と
を含むことを特徴とする装置。
前記電極および前記接地電極が金属のリングを含む、実施形態1記載の装置。
前記注入口が、中心ジェットと、複数のジェットを含む周辺環とを含む、実施形態1記載の装置。
前記RF電流が、前記誘電性プラズマ閉じ込め管内におけるガス流の方向に対して平行な電場線と、前記ガス流の方向に対して直交する磁場線とを発生する、実施形態1記載の装置。
磁場発生器が、前記誘電性プラズマ閉じ込め管内におけるガス流の方向に対して平行な磁場線を発生する、実施形態1記載の装置。
前記熱プラズマが、約9000K〜約11000Kの範囲内の第1の温度を有するコア領域と、約300K〜約1000Kの範囲内の第2の温度を有する周辺領域とを含む、実施形態1記載の装置。
前記RF電流が約3MHz〜約100MHzの範囲内の周波数を有する、実施形態1記載の装置。
実施形態1記載の少なくとも1つの装置を含むことを特徴とする溶融ガラスの清澄化システム。
前記溶融ガラスを収容する清澄管を更に含む、実施形態8記載のシステム。
前記少なくとも1つの装置が前記清澄管内のガラス−空気界面に向けられる、実施形態9記載のシステム。
前記少なくとも1つの装置が前記清澄管の外面に向けられる、実施形態9記載のシステム。
溶融ガラスの清澄化方法において、
熱プラズマを発生する装置であって、電極と、接地電極と、前記電極と前記接地電極との間に延びる誘電性プラズマ閉じ込め器と、該誘電性プラズマ閉じ込め器の周囲に延びる磁場発生器と、前記誘電性プラズマ閉じ込め器内にガスを送出するための注入口と、前記ガスを熱プラズマに変換するためのRF電流源と、前記熱プラズマを送出するための出口とを含む装置内に、ガスを導入する工程と、
溶融ガラスを清澄管に導入する工程と、
前記溶融ガラスを前記熱プラズマと接触させる工程と
を含むことを特徴とする方法。
前記ガスが、アルゴン、ヘリウム、ネオン、クリプトン、およびキセノンから選択される希ガスである、実施形態12記載の方法。
前記溶融ガラスを前記熱プラズマと接触させる工程が、前記熱プラズマを前記清澄管内のガラス−空気界面に向けることを含む、実施形態12記載の方法。
前記溶融ガラスを前記熱プラズマと接触させる工程が、前記熱プラズマを前記清澄管の外面に向けることを含む、実施形態12記載の方法。
前記熱プラズマが前記溶融ガラスを約1700℃以上の温度まで加熱する、実施形態12記載の方法。
前記熱プラズマが、前記溶融ガラスが流れる前記清澄管内の少なくとも1つの所定の領域を局所的に加熱する、実施形態12記載の方法。
約1650℃より高いTgと、1ポンド(約453.59グラム)当たり0.001個未満の気泡密度とを有することを特徴するガラス構造体。
合わせて約45〜約95重量%のアルミナおよび/またはシリカと、合わせて約5〜約55重量%のバリウム、ホウ素、マグネシム、カルシウム、ナトリウム、ストロンチウム、スズ、および/またはチタンのうちの少なくとも1つの酸化物とを含む、実施形態18記載のガラス構造体。
前記ガラス構造体がガラスシートである、実施形態18記載のガラス構造体。
112 清澄管
101 電極
102 接地電極
104 注入口
108 誘電性プラズマ閉じ込め器
114 中心ジェット
113 ジェットの外環
115 プラズマプルーム
118 ガス
300 プラズマトーチ
320 清澄管
380 表面
Claims (20)
- 熱プラズマを発生する装置であって、
電極と、
接地電極と、
前記電極と前記接地電極との間に延びる誘電性プラズマ閉じ込め器と、
誘電性プラズマ閉じ込め器の周囲に延びる磁場発生器と、
前記誘電性プラズマ閉じ込め器内にガスを送出するための注入口と、
前記ガスを熱プラズマに変換するための、前記電極および前記接地電極に結合されたRF電流源と、
前記熱プラズマを送出するための出口と
を含むことを特徴とする装置。 - 前記電極および前記接地電極が金属のリングを含む、請求項1記載の装置。
- 前記注入口が、中心ジェットと、複数のジェットを含む周辺環とを含む、請求項1記載の装置。
- 前記RF電流が、前記誘電性プラズマ閉じ込め管内におけるガス流の方向に対して平行な電場線と、前記ガス流の方向に対して直交する磁場線とを発生する、請求項1記載の装置。
- 磁場発生器が、前記誘電性プラズマ閉じ込め管内におけるガス流の方向に対して平行な磁場線を発生する、請求項1記載の装置。
- 前記熱プラズマが、約9000K〜約11000Kの範囲内の第1の温度を有するコア領域と、約300K〜約1000Kの範囲内の第2の温度を有する周辺領域とを含む、請求項1記載の装置。
- 前記RF電流が約3MHz〜約100MHzの範囲内の周波数を有する、請求項1記載の装置。
- 請求項1〜7記載の少なくとも1つの装置を含むことを特徴とする溶融ガラスの清澄化システム。
- 前記溶融ガラスを収容する清澄管を更に含む、請求項8記載のシステム。
- 前記少なくとも1つの装置が前記清澄管内のガラス−空気界面に向けられる、請求項9記載のシステム。
- 前記少なくとも1つの装置が前記清澄管の外面に向けられる、請求項9記載のシステム。
- 溶融ガラスの清澄化方法において、
熱プラズマを発生する装置であって、電極と、接地電極と、前記電極と前記接地電極との間に延びる誘電性プラズマ閉じ込め器と、該誘電性プラズマ閉じ込め器の周囲に延びる磁場発生器と、前記誘電性プラズマ閉じ込め器内にガスを送出するための注入口と、前記ガスを熱プラズマに変換するためのRF電流源と、前記熱プラズマを送出するための出口とを含む装置内に、ガスを導入する工程と、
溶融ガラスを清澄管に導入する工程と、
前記溶融ガラスを前記熱プラズマと接触させる工程と
を含むことを特徴とする方法。 - 前記ガスが、アルゴン、ヘリウム、ネオン、クリプトン、およびキセノンから選択される希ガスである、請求項12記載の方法。
- 前記溶融ガラスを前記熱プラズマと接触させる工程が、前記熱プラズマを前記清澄管内のガラス−空気界面に向けることを含む、請求項12記載の方法。
- 前記溶融ガラスを前記熱プラズマと接触させる工程が、前記熱プラズマを前記清澄管の外面に向けることを含む、請求項12記載の方法。
- 前記熱プラズマが前記溶融ガラスを約1700℃以上の温度まで加熱する、請求項12記載の方法。
- 前記熱プラズマが、前記溶融ガラスが流れる前記清澄管内の少なくとも1つの所定の領域を局所的に加熱する、請求項12記載の方法。
- 約1650℃より高いTgと、1ポンド(約453.59グラム)当たり0.001個未満の気泡密度とを有することを特徴するガラス構造体。
- 合わせて約45〜約95重量%のアルミナおよび/またはシリカと、合わせて約5〜約55重量%のバリウム、ホウ素、マグネシム、カルシウム、ナトリウム、ストロンチウム、スズ、および/またはチタンのうちの少なくとも1つの酸化物とを含む、請求項18記載のガラス構造体。
- 前記ガラス構造体がガラスシートである、請求項18記載のガラス構造体。
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WO2021075200A1 (ja) * | 2019-10-18 | 2021-04-22 | 日本電気硝子株式会社 | ガラス物品の製造装置および製造方法 |
JP2021066615A (ja) * | 2019-10-18 | 2021-04-30 | 日本電気硝子株式会社 | ガラス物品の製造装置および製造方法 |
JP7505174B2 (ja) | 2019-10-18 | 2024-06-25 | 日本電気硝子株式会社 | ガラス物品の製造装置および製造方法 |
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US20160200618A1 (en) | 2016-07-14 |
US20170217811A1 (en) | 2017-08-03 |
CN107207307A (zh) | 2017-09-26 |
US10167220B2 (en) | 2019-01-01 |
EP3242860A1 (en) | 2017-11-15 |
CN107207307B (zh) | 2020-11-27 |
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