JP2012509246A - 溶融ガラス及びそれから作製される超透明ガラスのレドックス比を低減する方法 - Google Patents
溶融ガラス及びそれから作製される超透明ガラスのレドックス比を低減する方法 Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims abstract description 177
- 239000006060 molten glass Substances 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 405
- 229910052742 iron Inorganic materials 0.000 claims abstract description 162
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 67
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 67
- 239000001301 oxygen Substances 0.000 claims abstract description 67
- 238000002485 combustion reaction Methods 0.000 claims abstract description 61
- 239000002737 fuel gas Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000003595 spectral effect Effects 0.000 claims abstract description 14
- 239000005361 soda-lime glass Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 4
- 239000004571 lime Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 67
- 238000002834 transmittance Methods 0.000 claims description 49
- 239000006066 glass batch Substances 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 19
- 229910001882 dioxygen Inorganic materials 0.000 claims description 19
- 239000000567 combustion gas Substances 0.000 claims description 14
- 235000020796 iron status Nutrition 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 2
- 230000009467 reduction Effects 0.000 abstract description 7
- 239000000523 sample Substances 0.000 description 23
- 238000002474 experimental method Methods 0.000 description 21
- 238000005816 glass manufacturing process Methods 0.000 description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 10
- 238000007670 refining Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 229910052717 sulfur Inorganic materials 0.000 description 10
- 239000011593 sulfur Substances 0.000 description 10
- 230000005587 bubbling Effects 0.000 description 7
- GHLITDDQOMIBFS-UHFFFAOYSA-H cerium(3+);tricarbonate Chemical compound [Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GHLITDDQOMIBFS-UHFFFAOYSA-H 0.000 description 7
- 239000006063 cullet Substances 0.000 description 7
- 239000004615 ingredient Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 229910000420 cerium oxide Inorganic materials 0.000 description 6
- 239000010459 dolomite Substances 0.000 description 6
- 229910000514 dolomite Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000005329 float glass Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910052684 Cerium Inorganic materials 0.000 description 4
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000007496 glass forming Methods 0.000 description 4
- 238000009533 lab test Methods 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- INFDPOAKFNIJBF-UHFFFAOYSA-N paraquat Chemical compound C1=C[N+](C)=CC=C1C1=CC=[N+](C)C=C1 INFDPOAKFNIJBF-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical group [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001311547 Patina Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000006105 batch ingredient Substances 0.000 description 1
- 239000002419 bulk glass Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 238000007540 photo-reduction reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
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
- C03B5/235—Heating the glass
-
- 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
-
- 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
-
- 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
- C03C4/00—Compositions for glass with special properties
- C03C4/0092—Compositions for glass with special properties for glass with improved high visible transmittance, e.g. extra-clear 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
- C03C4/00—Compositions for glass with special properties
- C03C4/10—Compositions for glass with special properties for infrared transmitting glass
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
Description
65〜75重量%のSiO2と、
10〜20重量%のNa2Oと、
5〜15重量%のCaOと、
0〜5重量%のMgOと、
0〜5重量%のAl2O3と、
0〜5重量%のK2Oと、
0〜0.30重量%のSO3と、
0.005〜0.120重量%のFe2O3としての全鉄と
を含み、0.550未満のレドックス比を有するソーダ−ライム−シリカガラスであって、0.0025重量%未満のCeO2を含むソーダ−ライム−シリカガラスに関する。厚さ5.5ミリメートルで測定されたガラスのスペクトル特性は、とりわけ、2°観測器を備えたC.I.E.標準光源「A」を使用することによって380〜770ナノメートルの波長範囲で測定された85%超の可視光透過率と、775〜2125ナノメートルの波長範囲で測定された87%超の太陽光赤外線全透過率と、300〜2500ナノメートルの波長範囲で測定された89%超の太陽エネルギー全透過率とを含み、太陽光赤外線全透過率及び太陽エネルギー全透過率は、それぞれ、Parry Moonの気団2.0の直接太陽放射照度データ及びASTM気団1.5の全天太陽放射照度データを使用することによって計算され、それぞれ、長方形規則及び台形規則を使用することによって積分される。
表1
構成成分 重量%
SiO2 65〜75
Na2O 10〜20
CaO 5〜15
MgO 0〜5
Al2O 0〜5
K2O 0〜5
SO3 0〜0.30
Fe2O3としての全鉄 0超〜0.120
レドックス比 0.350未満
反応1 4FeO+O2←→2Fe2O3
表4
バッチ構成成分 重量部
低鉄砂 1000
ソーダ灰 322〜347.8
アラゴナイト 160〜281
ドロマイト 0〜179
アルミニウム水和物 0〜35.1
芒硝 0〜15
表6
成分 範囲
SiO2 65〜75重量%
Na2O 10〜20重量%
CaO 5〜15重量%
MgO 0超〜5重量%
CeO2 0.0025重量%未満
SO3 0.12〜0.2重量%
Fe2O3(全鉄) 0.01重量%以下
レドックス比 0.400未満又は0.350未満
又は0.200未満又は0.150
未満
表7
成分 範囲
SiO2 65〜75重量%
Na2O 10〜20重量%
CaO 5〜15重量%
MgO 0超〜5重量%
CeO2 0.080重量%未満又は
0.060重量%未満又は
0.030重量%未満又は
0.020重量%未満又は
0.010重量%未満
SO3 0.12〜0.2重量%
Fe2O3(全鉄) 0.01重量%超〜0.12重量%
レドックス比 0.550未満又は0.400未満
又は0.350未満又は0.200
未満又は0.150未満
Claims (22)
- 65〜75重量%のSiO2と、
10〜20重量%のNa2Oと、
5〜15重量%のCaOと、
0〜5重量%のMgOと、
0〜5重量%のAl2O3と、
0〜5重量%のK2Oと、
0〜0.30重量%のSO3と、
0.005〜0.120重量%のFe2O3としての全鉄と
を含み、0.550未満のレドックス比を有するソーダ−ライム−シリカガラスであって、0.0025重量%未満のCeO2を含み、厚さ5.5ミリメートルで測定された前記ガラスのスペクトル特性は、
2°観測器を備えたC.I.E.標準光源「A」を使用することによって380〜770ナノメートルの波長範囲で測定された85%超の可視光透過率と、
775〜2125ナノメートルの波長範囲で測定された87%超の太陽光赤外線全透過率と、
300〜2500ナノメートルの波長範囲で測定された89%超の太陽エネルギー全透過率と
を含み、太陽光赤外線全透過率及び太陽エネルギー全透過率は、それぞれ、Parry Moonの気団2.0の直接太陽放射照度データ及びASTM気団1.5の全天太陽放射照度データを使用することによって計算され、それぞれ、長方形規則及び台形規則を使用することによって積分される上記ソーダ−ライム−シリカガラス。 - スペクトル特性が、
87%超の可視光透過率と、
89%超の太陽光赤外線全透過率と、
90%超の太陽エネルギー全透過率と
を含む、請求項1に記載のガラス。 - スペクトル特性が、
90%超の可視光透過率と、
90%超の太陽光赤外線全透過率と
を含む、請求項1に記載のガラス。 - Fe2O3としての全鉄が、0.005〜0.025重量%であり、レドックス比が、0.350未満である、請求項3に記載のガラス。
- Fe2O3としての全鉄が、0.005〜0.025重量%であり、レドックス比が、0.200未満である、請求項1に記載のガラス。
- 2価鉄状態の鉄(Fe++)及び3価鉄状態の鉄(Fe+++)を含む溶融ソーダ−ライム−シリカガラスのプールを加熱するステップを含み、溶融ガラスのプールは、1つ又は複数のバーナーから出る燃焼ガスと燃料ガスの燃焼混合物で加熱され、燃焼ガスの過剰酸素が2価鉄状態の鉄を3価鉄状態の鉄に酸化することによってレドックス比を低減させるように、燃焼ガスの流量は、燃料ガスを燃焼させるのに必要な燃焼ガス量を超える、ソーダ−ライム−シリカガラスのレドックス比を低減する方法。
- 燃焼混合物の酸素燃焼比が、2.31超であり、酸素燃料比が、以下のように、即ち、(全バーナーへの燃焼ガスの総流量×燃焼ガス中の酸素%)/(全バーナーへの燃料ガスの総流量)で求められる、請求項6に記載の方法。
- 酸素燃焼比が、2.31〜2.71の範囲である、請求項7に記載の方法。
- 酸素燃焼比が、2.63超である、請求項7に記載の方法。
- 酸素燃焼比が、2.71超である、請求項8に記載の方法。
- 溶融ガラスが、0を超え、0.0800重量%未満であるCeO2をさらに含む、請求項6に記載の方法。
- CeO2が、0.0025重量%未満である、請求項6に記載の方法。
- CeO2が、0を超え、0.0025重量%以下の範囲であり、レドックス比が、0.350以下である、請求項6に記載の方法。
- 溶融ガラスのプールの一部分を制御しつつ冷却することによって、0.005〜0.120重量%の範囲のFe2O3としての全鉄、0.550未満のレドックス比を有するガラスを提供するステップをさらに含み、前記ガラスは0.0025重量%未満のCeO2を含み、厚さ5.5ミリメートルで測定された前記ガラスのスペクトル特性は、
2°観測器を備えたC.I.E.標準光源「A」を使用することによって380〜770ナノメートルの波長範囲で測定された85%超の可視光透過率と、
775〜2125ナノメートルの波長範囲で測定された87%超の太陽光赤外線全透過率と、
300〜2500ナノメートルの波長範囲で測定された89%超の太陽エネルギー全透過率と
を含み、太陽光赤外線全透過率及び太陽エネルギー全透過率は、それぞれ、Parry Moonの気団2.0の直接太陽放射照度データ及びASTM気団1.5の全天太陽放射照度データを使用することによって計算され、それぞれ、長方形規則及び台形規則を使用することによって積分される、請求項6に記載の方法。 - スペクトル特性が、
87%超の可視光透過率と、
89%超の太陽光赤外線全透過率と、
90%超の太陽エネルギー全透過率と
を含む、請求項14に記載の方法。 - スペクトル特性が、
90%超の可視光透過率と、
90%超の太陽光赤外線全透過率と
を含む、請求項15に記載の方法。 - Fe2O3としての全鉄が、0.005〜0.025重量%であり、レドックス比が、0.350未満である、請求項16に記載の方法。
- 溶融ガラスのプール内で酸素ガスを移動させるステップをさらに含み、酸素ガスが、溶融ガラスのプールの底部からプールの頂部への方向に流れる、請求項6に記載の方法。
- 加熱チャンバーで溶融ソーダ−ライム−シリカガラスのプールを加熱するステップであって、溶融ガラスのプールが、2価鉄状態の鉄(Fe++)及び3価鉄状態の鉄(Fe+++)を含む上記ステップと、
ガラスバッチ材料を加熱チャンバー中に収容された溶融ガラスのプール上に移動させるステップであって、バッチ材料が2価鉄状態の鉄(Fe++)と3価鉄状態の鉄(Fe+++)とを含む上記ステップと、
ガラスバッチ材料がガラスの溶融プール表面上をフロートする際に、前記ガラスバッチ材料を溶融するステップと、
溶融ガラスのプール内で酸素を移動させて2価鉄を3価鉄に酸化することによってレドックス比を低減するステップと、
溶融ガラスのプールからガラスリボンを形成するステップと
を含む、ソーダ−ライム−シリカガラスのレドックス比を低減する方法。 - 溶融ガラスのプールの一部分を制御しつつ冷却することによって、0.005〜0.120重量%の範囲のFe2O3としての全鉄、0.550未満のレドックス比を有するガラスを提供するステップをさらに含み、前記ガラスが、0.0025重量%未満のCeO2を含み、厚さ5.5ミリメートルで測定された前記ガラスのスペクトル特性が、
2°観測器を備えたC.I.E.標準光源「A」を使用することによって380〜770ナノメートルの波長範囲で測定された85%超の可視光透過率と、
775〜2125ナノメートルの波長範囲で測定された87%超の太陽光赤外線全透過率と、
300〜2500ナノメートルの波長範囲で測定された89%超の太陽エネルギー全透過率と
を含み、太陽光赤外線全透過率及び太陽エネルギー全透過率は、それぞれ、Parry Moonの気団2.0の直接太陽放射照度データ及びASTM気団1.5の全天太陽放射照度データを使用することによって計算され、それぞれ、長方形規則及び台形規則を使用することによって積分される、請求項19に記載の方法。 - スペクトル特性が、
90%超の可視光透過率と、
90%超の太陽光赤外線全透過率と、
90%超の太陽エネルギー全透過率と
を含み、Fe2O3としての全鉄が、0.005〜0.025重量%であり、レドックス比が0.350未満である、請求項20に記載の方法。 - バッチ材料が、溶融ガラスのプール表面上をフロートする際に溶融し、酸素気泡を移動させるステップが、溶融ガラスのプール表面下方の及び溶融バッチ材料から下流の位置から、溶融ガラスのプール表面に向かって溶融ガラスのプール内を上方に、間隔をあけた複数の酸素気泡流を移動させることによって実施され、気泡流が、溶融ガラスの方向又は流れを横断する線上にある、請求項19に記載の方法。
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JP2016501818A (ja) * | 2012-11-30 | 2016-01-21 | コーニング インコーポレイテッド | IRタッチスクリーン用途のための低Feガラス |
JP2016069251A (ja) * | 2014-09-30 | 2016-05-09 | AvanStrate株式会社 | ガラス基板の製造方法、およびガラス基板製造装置 |
WO2016159362A1 (ja) * | 2015-04-03 | 2016-10-06 | 旭硝子株式会社 | ガラス物品 |
WO2016158841A1 (ja) * | 2015-04-03 | 2016-10-06 | 旭硝子株式会社 | ガラス物品 |
US10435327B2 (en) | 2015-04-03 | 2019-10-08 | AGC Inc. | Glass article |
CN107162408A (zh) * | 2017-06-15 | 2017-09-15 | 漳州旗滨玻璃有限公司 | 一种超白薄电子玻璃及其生产方法 |
JP2021075400A (ja) * | 2019-11-05 | 2021-05-20 | 日本電気硝子株式会社 | ガラスの製造方法及び板ガラスの製造方法 |
JP7354776B2 (ja) | 2019-11-05 | 2023-10-03 | 日本電気硝子株式会社 | ガラスの製造方法及び板ガラスの製造方法 |
JP2023512098A (ja) * | 2020-02-03 | 2023-03-23 | ビトロ フラット グラス エルエルシー | 可視光線透過率の高いソーダ石灰シリカガラス |
Also Published As
Publication number | Publication date |
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JP5785092B2 (ja) | 2015-09-24 |
BRPI0921419A2 (pt) | 2018-05-29 |
CA2744380A1 (en) | 2010-05-27 |
MX2011005385A (es) | 2011-07-29 |
US9133049B2 (en) | 2015-09-15 |
RU2011125304A (ru) | 2012-12-27 |
PL2396284T3 (pl) | 2016-11-30 |
WO2010059559A1 (en) | 2010-05-27 |
US20130038940A1 (en) | 2013-02-14 |
MY150854A (en) | 2014-03-14 |
MX343670B (es) | 2016-11-16 |
EP2396284A1 (en) | 2011-12-21 |
US8304358B2 (en) | 2012-11-06 |
ES2577527T3 (es) | 2016-07-15 |
US20100126218A1 (en) | 2010-05-27 |
EP2396284B1 (en) | 2016-05-18 |
RU2536526C2 (ru) | 2014-12-27 |
KR101304664B1 (ko) | 2013-09-06 |
KR20110095903A (ko) | 2011-08-25 |
CN102272062A (zh) | 2011-12-07 |
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