JPS629542B2 - - Google Patents
Info
- Publication number
- JPS629542B2 JPS629542B2 JP54099516A JP9951679A JPS629542B2 JP S629542 B2 JPS629542 B2 JP S629542B2 JP 54099516 A JP54099516 A JP 54099516A JP 9951679 A JP9951679 A JP 9951679A JP S629542 B2 JPS629542 B2 JP S629542B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- bag
- metal compound
- oxidizing agent
- tube
- 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.)
- Expired
Links
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
- C03B17/02—Forming molten glass coated with coloured layers; Forming molten glass of different compositions or layers; Forming molten glass comprising reinforcements or inserts
- C03B17/025—Tubes or rods
-
- 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
- C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
-
- 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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/245—Oxides by deposition from the vapour phase
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/229—Non-specific enumeration
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/15—Deposition methods from the vapour phase
- C03C2218/152—Deposition methods from the vapour phase by cvd
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Surface Treatment Of Glass (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Description
【発明の詳細な説明】
本発明は、例えば螢光ランプの製造において使
用されるガラス管の内面に金属酸化物皮膜を付着
する技術と関係する。このような皮膜の例は、米
国特許第4058639号、第4020385号、第3987331
号、第3676729号、第3379917号及び第3205394号
に示されており、上記例はアルミニウム、錫、ジ
ルコニウム、インジウム、チタン及び珪素の酸化
物をそれぞれ開示している。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to techniques for depositing metal oxide coatings on the interior surfaces of glass tubes used, for example, in the manufacture of fluorescent lamps. Examples of such coatings are U.S. Pat.
No. 3,676,729, No. 3,379,917 and No. 3,205,394, the examples disclose oxides of aluminum, tin, zirconium, indium, titanium and silicon, respectively.
今まで、このような皮膜は、ガラスが管として
延伸されそして螢光ランプ長さに切断された後ガ
ラス管面に形成された。本発明において、金属酸
化物皮膜はガラスが管状に延伸されつつある間に
付着される。揮化された金属化合物が酸化剤の存
在下で延伸中形成される軟いガラス袋状体（バツ
グ）内に注入される。金属化合物は酸化剤と反応
してガラス上に金属酸化物皮膜を形成する。 Heretofore, such coatings have been formed on the glass tube surface after the glass has been drawn as a tube and cut to fluorescent lamp length. In the present invention, the metal oxide coating is applied while the glass is being drawn into a tube. The volatilized metal compound is injected into a soft glass bag formed during stretching in the presence of an oxidizing agent. The metal compound reacts with the oxidizing agent to form a metal oxide film on the glass.
図面は本発明を実施するのに使用されうる設備
の概略図である。図面において、タンク１は溶融
ガラス２を収納している。溶融ガラスはマンドレ
ル３の周囲から下方に引出されて軟いガラスの袋
〓〓〓〓
状体（バツグ）４を形成し、その後牽引機５によ
つて延伸されて管６を形成する。袋状体形成ステ
ージは所望の管形態へと軟いガラスを賦形する。
この工程は公知であり、米国特許第2009793号に
示されている。容器７は金属化合物を収蔵し、そ
の蒸気が管路８を経て管９に移送される。導管９
はマンドレル３内に配置されておりそして導管９
の下端は袋４内に突入している。 The drawings are schematic illustrations of equipment that may be used to implement the invention. In the drawing, a tank 1 contains molten glass 2. The molten glass is drawn downward from around the mandrel 3 to form a soft glass bag.
A bag 4 is formed and then stretched by a pulling machine 5 to form a tube 6. The bladder forming stage shapes the soft glass into the desired tube configuration.
This process is known and shown in US Patent No. 2009793. Container 7 contains a metal compound, the vapor of which is transferred via line 8 to line 9. conduit 9
is located within mandrel 3 and conduit 9
The lower end of is inserted into the bag 4.
金属化合物は容器７内にその沸点において或い
はそれ以上に維持されているので、金属化合物は
管路８及び導管９を通して袋状体４内に気体状態
で移送される。例えば、もし所望される金属酸化
物皮膜が酸化錫であるなら、金属化合物は四塩化
錫とされえ、従つて容器７は四塩化錫の沸点であ
る114℃において或いはそれ以上に維持されよ
う。酸化チタン皮膜が所望される場合には、約
136℃の沸点を有する四塩化チタンが使用されう
る。 Since the metal compound is maintained in the container 7 at or above its boiling point, it is transferred in gaseous form into the bag 4 through the conduit 8 and the conduit 9. For example, if the desired metal oxide coating is tin oxide, the metal compound could be tin tetrachloride and the vessel 7 would therefore be maintained at or above the boiling point of tin tetrachloride, 114°C. If a titanium oxide coating is desired, approximately
Titanium tetrachloride, which has a boiling point of 136°C, can be used.
ガラス面に所望の金属酸化物を形成する為には
金属化合物と反応せしめられる酸化剤が袋状体４
内に導入されることが必要である。通常の場合、
酸化剤は空気であり、これは導入口１０を通して
引込まれそしてマンドレル３内で導管９の周囲に
沿つて送られそして袋状体４内に排出される。 In order to form a desired metal oxide on the glass surface, an oxidizing agent that is reacted with a metal compound is placed in a bag-like body 4.
It is necessary that the system be introduced within the country. In normal cases,
The oxidizing agent is air, which is drawn in through the inlet 10 and passed around the circumference of the conduit 9 in the mandrel 3 and discharged into the bag 4.
別様には、例えば塩化インジウムの場合、金属
化合物は液体形態で（その沸点以下で）容器７内
に維持されえそして例えば空気のようなキヤリヤ
ガスを液体を通してそして管路８内にバブリング
することにより袋状体４内に移送されるようにす
ることもできる。この場合、空気は袋状体４内で
の酸化剤としての役目も果す。 Alternatively, for example in the case of indium chloride, the metal compound may be maintained in liquid form (below its boiling point) in container 7 and by bubbling a carrier gas such as air through the liquid and into line 8. It can also be configured to be transferred into the bag-like body 4. In this case, the air also serves as an oxidizing agent within the bag 4.
管路８及び導管９は、例えば内部での金属化合
物蒸気の凝縮を防止する為に周囲に加熱用テープ
を巻回することによる等して充分高温に維持され
るべきである。 Conduit 8 and conduit 9 should be maintained at a sufficiently high temperature, such as by wrapping heating tape around them to prevent condensation of metal compound vapor therein.
容器７を通してバブリングされるキヤリヤガス
が酸化剤の役目をも兼用する場合、管路８及び導
管９内の温度は金属化合物と酸化剤との間反応が
起る温度以下とすべきである。適正な操作の為に
は、この反応はガラスの温度が約800〜980℃の範
囲にある袋状体４内で起るようにすべきである。 If the carrier gas bubbled through vessel 7 also serves as an oxidizing agent, the temperature in conduits 8 and 9 should be below the temperature at which reaction between the metal compound and the oxidizing agent occurs. For proper operation, this reaction should occur within the bag 4, where the temperature of the glass is in the range of approximately 800-980°C.
図面は本発明を実施するのに使用されうる設備
の概略を示す。
１…タンク、２…溶融ガラス、３…マンドレ
ル、４…袋状体（バツグ）、６…管、７…金属化
合物収蔵容器、１０…酸化剤導入口。
〓〓〓〓
The drawings schematically depict equipment that can be used to implement the invention. DESCRIPTION OF SYMBOLS 1... Tank, 2... Molten glass, 3... Mandrel, 4... Bag-shaped body (bag), 6... Tube, 7... Metal compound storage container, 10... Oxidizing agent inlet. 〓〓〓〓
Claims (1)
方法であつて、ガラス融体からガラスがその軟化
点以上にある袋状体形成ステージを通して高温ガ
ラスを延伸する段階と、高温の袋状体内に蒸気化
した金属化合物及び該金属化合物と反応して軟い
ガラスの内面に金属酸化物を形成する酸化剤を分
与する段階とを包含する前記方法。 ２ ガラス袋状体の温度が約800〜980℃である特
許請求の範囲第１項記載の方法。 ３ 酸化剤が空気である特許請求の範囲第１項記
載の方法。 ４ 金属化合物の沸点がガラスの軟化点以下であ
る特許請求の範囲第１項記載の方法。 ５ 金属化合物蒸気がガラス融体を通して伸延す
るマンドレル内の管を通して高温袋状体内に分与
される特許請求の範囲第１項記載の方法。[Claims] 1. A method for depositing a metal oxide film on the inner surface of a glass tube, comprising the steps of: drawing hot glass from a glass melt through a bag-forming stage where the glass is at or above its softening point; dispensing into the hot bladder a vaporized metal compound and an oxidizing agent that reacts with the metal compound to form a metal oxide on the interior surface of the soft glass. 2. The method according to claim 1, wherein the temperature of the glass bag-like body is about 800 to 980°C. 3. The method according to claim 1, wherein the oxidizing agent is air. 4. The method according to claim 1, wherein the boiling point of the metal compound is below the softening point of glass. 5. The method of claim 1, wherein the metal compound vapor is dispensed into the hot bag through a tube in a mandrel extending through the glass melt.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US93133178A | 1978-08-07 | 1978-08-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5523099A JPS5523099A (en) | 1980-02-19 |
| JPS629542B2 true JPS629542B2 (en) | 1987-02-28 |
Family
ID=25460616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9951679A Granted JPS5523099A (en) | 1978-08-07 | 1979-08-06 | Method of forming metal oxide film on glass tube |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5523099A (en) |
| BE (1) | BE878089A (en) |
| BR (1) | BR7902379A (en) |
| DE (1) | DE2928980A1 (en) |
| GB (1) | GB2027689A (en) |
| IT (1) | IT1122414B (en) |
| MX (1) | MX152523A (en) |
| NL (1) | NL7906006A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03238747A (en) * | 1990-02-16 | 1991-10-24 | Matsushita Electric Ind Co Ltd | Metal vapor discharge lamp and its manufacturing method |
| NL9100335A (en) * | 1991-02-26 | 1992-09-16 | Philips Nv | METHOD FOR MANUFACTURING TUBE GLASS. |
| DE19707819B4 (en) * | 1997-02-27 | 2004-04-22 | Elan Schaltelemente Gmbh & Co. Kg | Circuit arrangement with safety function |
| EP1084996B1 (en) * | 1999-09-15 | 2004-06-02 | SCHOTT ROHRGLAS GmbH | Process and apparatus for the fabrication of glass tubes with inner coatings |
| DE102014019238B4 (en) * | 2014-12-19 | 2026-01-22 | Hochschule München | Method and apparatus for coating the inner wall of a tubular substrate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS476044U (en) * | 1971-02-12 | 1972-09-20 | ||
| DE2330158C2 (en) * | 1973-06-08 | 1975-02-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen |
-
1979
- 1979-04-19 BR BR7902379A patent/BR7902379A/en unknown
- 1979-07-18 DE DE19792928980 patent/DE2928980A1/en not_active Withdrawn
- 1979-08-03 IT IT24907/79A patent/IT1122414B/en active
- 1979-08-03 MX MX178765A patent/MX152523A/en unknown
- 1979-08-06 GB GB7927288A patent/GB2027689A/en not_active Withdrawn
- 1979-08-06 BE BE2/57996A patent/BE878089A/en not_active IP Right Cessation
- 1979-08-06 JP JP9951679A patent/JPS5523099A/en active Granted
- 1979-08-06 NL NL7906006A patent/NL7906006A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BE878089A (en) | 1979-12-03 |
| JPS5523099A (en) | 1980-02-19 |
| NL7906006A (en) | 1980-02-11 |
| BR7902379A (en) | 1980-10-07 |
| MX152523A (en) | 1985-08-16 |
| IT7924907A0 (en) | 1979-08-03 |
| DE2928980A1 (en) | 1980-02-21 |
| IT1122414B (en) | 1986-04-23 |
| GB2027689A (en) | 1980-02-27 |
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