JPS62223028A - Smelting of phosphate glass - Google Patents
Smelting of phosphate glassInfo
- Publication number
- JPS62223028A JPS62223028A JP6492486A JP6492486A JPS62223028A JP S62223028 A JPS62223028 A JP S62223028A JP 6492486 A JP6492486 A JP 6492486A JP 6492486 A JP6492486 A JP 6492486A JP S62223028 A JPS62223028 A JP S62223028A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- gas
- bubbling
- stirring
- melting
- 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.)
- Pending
Links
- 239000005365 phosphate glass Substances 0.000 title claims abstract description 6
- 238000003723 Smelting Methods 0.000 title 1
- 239000011521 glass Substances 0.000 claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 230000008018 melting Effects 0.000 claims abstract description 13
- 238000002844 melting Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000005587 bubbling Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 21
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052697 platinum Inorganic materials 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000009137 Quercus alba Nutrition 0.000 description 1
- 241001531312 Quercus pubescens Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/193—Stirring devices; Homogenisation using gas, e.g. bubblers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明に９７＋ｄＪＮガラスの溶融法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for melting 97+dJN glass.
（便来の技術）
に宋、リン酸Ｊ嵐ガラスを溶融するにはりン１梗瓜が浴
ｉ状悪では活性に窟むため、白金るつぼでの溶融が行な
わ（している。(Traditional technology) During the Song Dynasty, in order to melt phosphoric acid J-arashi glass, phosphoric acid was melted in a platinum crucible, since phosphoric acid 1 kettle becomes active in a bad bath.
この際リンｃＲ塩の揮発にＬる７阻成の不均一をさける
ため、−？Ｖｉ９白金の撹拌棒での撹拌が行なわれてい
る。At this time, in order to avoid nonuniform inhibition of L7 inhibition due to the volatilization of the phosphorus cR salt, -? Stirring is performed using a Vi9 platinum stirring bar.
（発明の屏決し二つとする問題点）
しかしながら、この工うな溶融法によると＋ｉｔ、ｑ半
棒の白金がガラス中に浴解し、析出することにＬり生じ
る白金コロイドの発生にエリガラスの光の透過率が低下
し、時にはガラスが灰色から黒色に層色する場合があり
、元の透過率の高い７Ｖ＠色透明なガラスをｏｆ１央Ｖ
Ｃ峙る事は困噛でめった。(Problems determined by the invention) However, according to this melting method, half a bar of platinum is dissolved in the glass and precipitated, resulting in the generation of platinum colloid. The transmittance of the glass may decrease, and sometimes the glass may change color from gray to black.
It was difficult to face C.
（問題点を解決するための手段）
本発明は前述の問題点を解決すべくなさ几たもので、白
櫨製の撹拌棒に代え、気体のバブリングにＬ ６ ＋を
拝を行なりことを特徴とするリン酸塩ガラスの溶融法を
提供するものである。(Means for Solving the Problems) The present invention is designed to solve the above-mentioned problems, and instead of using a stirring rod made of white oak, L 6 + is used for gas bubbling. The present invention provides a characteristic method for melting phosphate glass.
本発明に用いられる気体としては、ガラスの溶融温度で
不活性乃至は弱酸化性の気体が用いられ、例えばＮ２．
０２、Ａｒ％ＨｅガスおＬびそれらのα８物を用いるの
が好ましい。The gas used in the present invention is an inert or weakly oxidizing gas at the melting temperature of the glass, such as N2.
It is preferable to use 02, Ar%He gas and α8 products thereof.
虐元性の気体、例えばＣ０１ＮＨ３、Ｎ２ 弄を少被で
もざむ気体を用いるガラスの入間や黒化が娘−著となり
、Ｃ○一度が高い場合白金るつぼの消耗がｉＩＡ者とな
シ好ましくない。また彊ホ化性の気体、例えばＮｏ、を
用いるとガラスの灰８１ｒｉ防止できるが、やはり白金
るつぼの消耗が顕著となり杼ましくない。The use of gases that are abrasive, such as CO1, NH3, and N2, will cause the glass to darken and darken, and if the CO level is high, the consumption of the platinum crucible will be undesirable. Further, if a gas having a phosphorizing property, such as No. 81, is used, glass ash can be prevented, but the consumption of the platinum crucible becomes significant and it is not possible to shed the crucible.
撹拌に用いらｎる気体の流ｔはガラス溶融温度において
、ガラス１００ｇ当り１ｏ ｍｚ／分以上であれば、１
を拌効果があるが好ましくは１００ ｍｌ／／分以上で
あれば、撹拌効果も十分でガラスの入間を十分防止する
ことが出来る。If the gas flow t used for stirring is 10 mz/min or more per 100 g of glass at the glass melting temperature, then 1
The stirring effect is preferably 100 ml/min or more, so that the stirring effect is sufficient and the formation of glass can be sufficiently prevented.
（作 用）
本発明にＬる気体の撹拌は、ガラス原料バッチ中に含゛
まれる有情物、炭酸根等エリ発生するｃｏ２ガスやＣＯ
ガスをガラス溶融雰囲気中エリ速ｆかに取り除くことに
＝９、ガラス溶融時にガラスの入間の原因となる還元性
の雰囲気ｌこしないような効果があるものと思われる０
（実施例）
夷シＩＩＩ ソｌ ｌ
ＣａＯ２４憲鷺チ、Ｐ２Ｏ５７６電量チとなる工うにＣ
ａＣＯ３とａ３ｐｏ、を用いて、、１４廿し九ガラスノ
くツチ３００ｇを４００°０で３時間仮焼した後、白金
るつぼ中に仕込んで１２５０°０の′電気炉中に置いた
。(Function) The stirring of the gas according to the present invention is carried out by stirring the gas contained in the raw material batch for glass, CO2 gas and CO2 gas generated by carbonic acid radicals, etc.
Removing the gas in the glass melting atmosphere at a rapid speed = 9 is thought to have the effect of preventing the reducing atmosphere l which causes cracks in the glass during glass melting (Example) 0 III Sol l CaO24 Kensagi Chi, P2O576 Electricity Chi
Using aCO3 and a3po, 300g of 14-year-old glass was calcined at 400°0 for 3 hours, then placed in a platinum crucible and placed in an electric furnace at 1250°0.
ガラスが溶融状態にｌると速やかに同値８編のアルミナ
ｑを溶融ガラス中に入れ、Ｎ２ガスを１２５０°０で１
２５０ Ｎ６／分の流速で３０分間流した衾、−液を妖
板上Ｋｆｉし出し賊冷を行なった。得られたガラスは肉
眼では濁りは分からず、１ｗ１１１厚に光学所産したガ
ラスの光の透過＊（５５０μ）は９８％でめった。Once the glass is in a molten state, immediately put 8 pieces of alumina q of the same value into the molten glass, and add N2 gas to the molten glass at 1250°0.
After flowing for 30 minutes at a flow rate of 250 N6/min, the solution was poured onto a plate and cooled. The obtained glass did not show any turbidity to the naked eye, and the optically produced glass with a thickness of 1w111 had a light transmission* (550μ) of 98%.
実施例２
ガスとしてムｒガスを１２５０ ’Ｇで２５０ ｍｉ／
分の流速で流した以外は実施例１と同様にしてガラスを
溶融したところ、ガラスの光の通過率ｆ′１９８チであ
り、ガラスの濁りは見られなかった。Example 2 Mur gas is used as gas at 1250'G and 250 mi/
When glass was melted in the same manner as in Example 1, except that the flow rate was 100.degree., the light transmission rate of the glass was f'198, and no clouding of the glass was observed.
実施例３
ガスとしてＮ２８０チ、０２２０％ の混合ガスを１２
５０°０で５００ ｍ／／分の流速で流した以外は実施
例１と同様にしてガラスを溶融したところ、ガラスの光
の透過率は９８％であり、ガラスの濁りは見６ｎなかっ
た。Example 3 A mixed gas of 280% N2 and 0220% was used as the gas.
When glass was melted in the same manner as in Example 1 except that the flow rate was 500 m/min at 50°0, the light transmittance of the glass was 98%, and no clouding of the glass was observed.
比紋例
ガスを流さず、白金の＋＃、拝禅で撹拌した以外は実施
例１と同様にしてガラスを溶融したところ、得られたガ
ラスはやや灰色に濁って２す、光の透過率は８８％でめ
った。When glass was melted in the same manner as in Example 1 except that the gas was not flowed and the platinum +# was stirred, the resulting glass was slightly gray and cloudy, and the light transmittance was 2. was rare at 88%.
Claims (1)
より撹拌する事を特徴とするリン酸塩ガラスの溶融法。 ２、バブリングに用いる気体は、Ｎａ、Ｏ＿２、Ａｒ、
Ｈｅおよびそれらの混合物である請求の範囲（１）の溶
融法。 ３、撹拌に用いられる気体の流量は、ガラス溶融温度に
おいてガラス１００ｇ当り１０ｍｌ／分以上である請求
の範囲（１）の溶融法。[Claims] 1. A method for melting phosphate glass, characterized in that stirring is performed by bubbling gas during melting of phosphate glass. 2. Gases used for bubbling include Na, O_2, Ar,
The melting method according to claim (1), which is He and mixtures thereof. 3. The melting method according to claim (1), wherein the flow rate of the gas used for stirring is 10 ml/min or more per 100 g of glass at the glass melting temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6492486A JPS62223028A (en) | 1986-03-25 | 1986-03-25 | Smelting of phosphate glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6492486A JPS62223028A (en) | 1986-03-25 | 1986-03-25 | Smelting of phosphate glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62223028A true JPS62223028A (en) | 1987-10-01 |
Family
ID=13272075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6492486A Pending JPS62223028A (en) | 1986-03-25 | 1986-03-25 | Smelting of phosphate glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62223028A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0555390A1 (en) * | 1990-11-01 | 1993-08-18 | Zimmer, Inc. | Process for making a durable, bioabsorbable fiber |
| WO2003066539A1 (en) * | 2002-02-05 | 2003-08-14 | Nippon Electric Glass Co., Ltd. | Glass composition |
| WO2004050568A1 (en) * | 2002-11-29 | 2004-06-17 | Nippon Electric Glass Co., Ltd. | Glass melting furnace and method for producing glass |
| JP2004269347A (en) * | 2003-02-18 | 2004-09-30 | Nippon Electric Glass Co Ltd | Glass composition |
| WO2005037721A1 (en) * | 2003-10-20 | 2005-04-28 | Nippon Electric Glass Co., Ltd. | Glass composition and method for producing glass article |
| US7010940B2 (en) * | 2000-08-17 | 2006-03-14 | Hoya Corporation | Process for producing glass and glass-melting apparatus thereof |
| EP1648834A2 (en) * | 2003-04-15 | 2006-04-26 | Praxair Technology, Inc. | Fining glassmelts using helium bubbles |
| WO2007052489A1 (en) * | 2005-10-31 | 2007-05-10 | Ohara Inc. | Optical glass, apparatus for producing optical glass, and process for producing the same |
| JP2007126298A (en) * | 2005-10-31 | 2007-05-24 | Ohara Inc | Optical glass |
| JP2007126297A (en) * | 2005-10-31 | 2007-05-24 | Ohara Inc | Method of and device for producing optical glass |
| JP2007186421A (en) * | 2000-08-17 | 2007-07-26 | Hoya Corp | Process for producing glass and glass-melting apparatus for use therein |
-
1986
- 1986-03-25 JP JP6492486A patent/JPS62223028A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0555390A4 (en) * | 1990-11-01 | 1994-08-24 | Zimmer Inc | Process for making a durable, bioabsorbable fiber |
| EP0555390A1 (en) * | 1990-11-01 | 1993-08-18 | Zimmer, Inc. | Process for making a durable, bioabsorbable fiber |
| US7191619B2 (en) | 2000-08-17 | 2007-03-20 | Hoya Corporation | Process for producing glass and glass-melting apparatus thereof |
| DE10140032C5 (en) * | 2000-08-17 | 2013-06-20 | Hoya Corp. | Method for producing glass and glass melting apparatus therefor |
| JP4721290B2 (en) * | 2000-08-17 | 2011-07-13 | Ｈｏｙａ株式会社 | Glass manufacturing method and glass melting apparatus used therefor |
| US7730744B2 (en) | 2000-08-17 | 2010-06-08 | Hoya Corporation | Process for producing glass and glass-melting apparatus thereof |
| US7010940B2 (en) * | 2000-08-17 | 2006-03-14 | Hoya Corporation | Process for producing glass and glass-melting apparatus thereof |
| JP2007186421A (en) * | 2000-08-17 | 2007-07-26 | Hoya Corp | Process for producing glass and glass-melting apparatus for use therein |
| WO2003066539A1 (en) * | 2002-02-05 | 2003-08-14 | Nippon Electric Glass Co., Ltd. | Glass composition |
| EP1577270A1 (en) * | 2002-11-29 | 2005-09-21 | Nippon Electric Glass Co., Ltd. | Glass melting furnace and method for producing glass |
| US7497094B2 (en) | 2002-11-29 | 2009-03-03 | Nippon Electric Glass Co., Ltd. | Glass melting furnace and method for producing glass |
| WO2004050568A1 (en) * | 2002-11-29 | 2004-06-17 | Nippon Electric Glass Co., Ltd. | Glass melting furnace and method for producing glass |
| EP1577270A4 (en) * | 2002-11-29 | 2007-03-28 | Nippon Electric Glass Co | Glass melting furnace and method for producing glass |
| KR101011418B1 (en) * | 2002-11-29 | 2011-01-28 | 니폰 덴키 가라스 가부시키가이샤 | Glass melting furnace |
| JP2004269347A (en) * | 2003-02-18 | 2004-09-30 | Nippon Electric Glass Co Ltd | Glass composition |
| EP1648834A4 (en) * | 2003-04-15 | 2011-08-10 | Praxair Technology Inc | Fining glassmelts using helium bubbles |
| EP1648834A2 (en) * | 2003-04-15 | 2006-04-26 | Praxair Technology, Inc. | Fining glassmelts using helium bubbles |
| US7823416B2 (en) | 2003-10-20 | 2010-11-02 | Nippon Electric Gas Co., Ltd. | Glass composition and method for producing glass article |
| WO2005037721A1 (en) * | 2003-10-20 | 2005-04-28 | Nippon Electric Glass Co., Ltd. | Glass composition and method for producing glass article |
| EP1679288A4 (en) * | 2003-10-20 | 2007-03-07 | Nippon Electric Glass Co | Glass composition and method for producing glass article |
| EP1679288A1 (en) * | 2003-10-20 | 2006-07-12 | Nippon Electric Glass Co., Ltd | Glass composition and method for producing glass article |
| JP2007126297A (en) * | 2005-10-31 | 2007-05-24 | Ohara Inc | Method of and device for producing optical glass |
| JP2007126298A (en) * | 2005-10-31 | 2007-05-24 | Ohara Inc | Optical glass |
| WO2007052489A1 (en) * | 2005-10-31 | 2007-05-10 | Ohara Inc. | Optical glass, apparatus for producing optical glass, and process for producing the same |
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