FR2410635A1 - Appareil pour reduire au minimum les variations de diametre de filaments etires - Google Patents
Appareil pour reduire au minimum les variations de diametre de filaments etiresInfo
- Publication number
- FR2410635A1 FR2410635A1 FR7834090A FR7834090A FR2410635A1 FR 2410635 A1 FR2410635 A1 FR 2410635A1 FR 7834090 A FR7834090 A FR 7834090A FR 7834090 A FR7834090 A FR 7834090A FR 2410635 A1 FR2410635 A1 FR 2410635A1
- Authority
- FR
- France
- Prior art keywords
- diameter
- gas
- mittle
- filament
- rough
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
- C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/029—Furnaces therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/80—Means for sealing the preform entry or upper end of the furnace
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/90—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Integrated Circuits (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
APPAREIL POUR ETIRER UNE EBAUCHE CYLINDRIQUE DE MATIERE THERMOPLASTIQUE EN UN FILAMENT, A L'AIDE D'UN MOUFLE CYLINDRIQUE ALLONGE DANS LEQUEL EST SUPPORTEE L'EBAUCHE SOUS UNE ORIENTATION TELLE QUE LE FILAMENT SOIT ETIRE DEPUIS UNE PREMIERE EXTREMITE DU MOUFLE QUI EST CHAUFFE AU VOISINAGE DE L'EBAUCHE POUR PORTER CELLE-CI A LA TEMPERATURE D'ETIRAGE DE SA MATIERE, UN GAZ INTRODUIT PAR LA DEUXIEME EXTREMITE DU MOUFLE RENDUE ETANCHE TRAVERSANT CELUI-CI ET S'ECHAPPANT PAR LA PREMIERE EXTREMITE. DANS LE MOUFLE SONT DISPOSES, AU VOISINAGE IMMEDIAT DE L'EBAUCHE, DU COTE TOURNE VERS LA DEUXIEME EXTREMITE DU MOUFLE, DES MOYENS POUR CONFINER L'ECOULEMENT DU GAZ A UN CANAL CYLINDRIQUE ETROIT A PROXIMITE DE LA PAROI DU MOUFLE DE MANIERE A CHAUFFER UNIFORMEMENT LE GAZ AVANT QU'IL NE DEPASSE L'EBAUCHE. APPLICATION A LA FABRICATION DE GUIDES D'ONDES OPTIQUES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/857,418 US4126436A (en) | 1977-12-05 | 1977-12-05 | Apparatus for minimizing drawn filament diameter variation |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2410635A1 true FR2410635A1 (fr) | 1979-06-29 |
FR2410635B1 FR2410635B1 (fr) | 1983-11-25 |
Family
ID=25325956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7834090A Granted FR2410635A1 (fr) | 1977-12-05 | 1978-12-04 | Appareil pour reduire au minimum les variations de diametre de filaments etires |
Country Status (10)
Country | Link |
---|---|
US (1) | US4126436A (fr) |
JP (1) | JPS5488325A (fr) |
AT (1) | AT377748B (fr) |
CA (1) | CA1104312A (fr) |
DE (1) | DE2850969A1 (fr) |
FR (1) | FR2410635A1 (fr) |
GB (1) | GB2009142B (fr) |
IT (1) | IT1101525B (fr) |
NL (1) | NL185837C (fr) |
SE (1) | SE437980B (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4249925A (en) * | 1978-05-12 | 1981-02-10 | Fujitsu Limited | Method of manufacturing an optical fiber |
US4362545A (en) * | 1980-07-03 | 1982-12-07 | Corning Glass Works | Support member for an optical waveguide preform |
US4289522A (en) * | 1980-07-03 | 1981-09-15 | Corning Glass Works | Support member for an optical waveguide preform |
US4289517A (en) * | 1980-07-03 | 1981-09-15 | Corning Glass Works | Method of forming an optical waveguide preform |
US4514205A (en) * | 1981-11-05 | 1985-04-30 | Corning Glass Works | Fiber cooling apparatus |
US4437870A (en) | 1981-11-05 | 1984-03-20 | Corning Glass Works | Optical waveguide fiber cooler |
US4440556A (en) * | 1982-06-23 | 1984-04-03 | International Telephone And Telegraph Corporation | Optical fiber drawing using plasma torch |
US4547644A (en) * | 1984-02-24 | 1985-10-15 | At&T Technologies, Inc. | Apparatus for heating a preform from which lightguide fiber is drawn |
NL8403380A (nl) * | 1984-11-07 | 1986-06-02 | Philips Nv | Werkwijze en inrichting voor het verdichten van een voorgevormd poreus lichaam uit materiaal, waarvan het hoofdbestanddeel uit sio2 bestaat. |
US4950319A (en) * | 1986-01-30 | 1990-08-21 | Corning Incorporated | Heating oven for preparing optical waveguide fibers |
JPH0686304B2 (ja) * | 1986-08-07 | 1994-11-02 | 住友電気工業株式会社 | ガラス棒延伸用加熱装置 |
DE3707970A1 (de) * | 1987-03-12 | 1988-09-22 | Rheydt Kabelwerk Ag | Verfahren zum transport einer optischen faser |
JPH03131544A (ja) * | 1989-06-29 | 1991-06-05 | Sumitomo Electric Ind Ltd | 光ファイバ用ガラス母材の加熱炉および製法 |
ES2183927T3 (es) | 1996-06-21 | 2003-04-01 | Pirelli Cavi E Sistemi Spa | Composicion aislante resistente a un arbol de agua. |
DE19649935C2 (de) * | 1996-12-02 | 1999-09-16 | Heraeus Quarzglas | Verfahren zur Herstellung von Quarzglaskörpern |
DE69800554T2 (de) * | 1997-03-27 | 2001-10-25 | Alcatel Sa | Thermische Isolierung eines Ofens zum Ziehen von optischen Fasern |
US5928574A (en) * | 1998-04-24 | 1999-07-27 | Lucent Technologies Inc. | Method of making optical fiber |
EP1114799A1 (fr) * | 2000-01-05 | 2001-07-11 | Lucent Technologies Inc. | Procédé de traitement thermique d'un corps moulé avec des réactifs gazeux |
US20020134530A1 (en) * | 2001-03-20 | 2002-09-26 | American Air Liquide, Inc. | Heat transfer fluids and methods of making and using same |
US20020129622A1 (en) * | 2001-03-15 | 2002-09-19 | American Air Liquide, Inc. | Heat transfer fluids and methods of making and using same |
US6668582B2 (en) | 2001-04-20 | 2003-12-30 | American Air Liquide | Apparatus and methods for low pressure cryogenic cooling |
US6651358B2 (en) | 2001-04-30 | 2003-11-25 | American Air Liquide, Inc. | Heat transfer fluids and methods of making and using same comprising hydrogen, helium and combinations thereof |
US6574972B2 (en) | 2001-04-30 | 2003-06-10 | L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Low temperature heat transfer methods |
US20030044743A1 (en) * | 2001-08-28 | 2003-03-06 | Bookbinder Dana C. | Furnace assembly for heating an optical waveguide preform |
US20060130529A1 (en) * | 2004-12-20 | 2006-06-22 | Bookbinder Dana C | Methods and apparatus for processing soot articles |
CN109562976A (zh) * | 2016-07-29 | 2019-04-02 | 康宁股份有限公司 | 在炉中定位光学预制件的系统和方法 |
US20220315473A1 (en) * | 2021-04-06 | 2022-10-06 | Corning Incorporated | Optical fiber draw furnace system and method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2958899A (en) * | 1953-10-09 | 1960-11-08 | Int Resistance Co | Apparatus for deposition of solids from vapors |
US4030901A (en) * | 1976-07-19 | 1977-06-21 | Bell Telephone Laboratories, Incorporated | Method for drawing fibers |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737292A (en) * | 1972-01-03 | 1973-06-05 | Corning Glass Works | Method of forming optical waveguide fibers |
US3890127A (en) * | 1973-05-29 | 1975-06-17 | American Optical Corp | Optical fiber drawing apparatus |
US4101300A (en) * | 1975-11-27 | 1978-07-18 | Hitachi, Ltd. | Method and apparatus for drawing optical fiber |
JPS5265458A (en) * | 1975-11-27 | 1977-05-30 | Hitachi Ltd | Line drawing device used light fiber |
JPS52119949A (en) * | 1976-04-02 | 1977-10-07 | Hitachi Ltd | Method of reducing variations in wire diameter of optical fibers |
-
1977
- 1977-12-05 US US05/857,418 patent/US4126436A/en not_active Expired - Lifetime
-
1978
- 1978-10-31 CA CA315,278A patent/CA1104312A/fr not_active Expired
- 1978-11-24 DE DE19782850969 patent/DE2850969A1/de active Granted
- 1978-11-28 AT AT0849978A patent/AT377748B/de not_active IP Right Cessation
- 1978-11-28 GB GB7846333A patent/GB2009142B/en not_active Expired
- 1978-12-01 SE SE7812408A patent/SE437980B/sv unknown
- 1978-12-01 JP JP14958278A patent/JPS5488325A/ja active Granted
- 1978-12-04 NL NLAANVRAGE7811849,A patent/NL185837C/xx not_active IP Right Cessation
- 1978-12-04 FR FR7834090A patent/FR2410635A1/fr active Granted
- 1978-12-05 IT IT30546/78A patent/IT1101525B/it active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2958899A (en) * | 1953-10-09 | 1960-11-08 | Int Resistance Co | Apparatus for deposition of solids from vapors |
US4030901A (en) * | 1976-07-19 | 1977-06-21 | Bell Telephone Laboratories, Incorporated | Method for drawing fibers |
Also Published As
Publication number | Publication date |
---|---|
NL185837B (nl) | 1990-03-01 |
JPS5488325A (en) | 1979-07-13 |
SE7812408L (sv) | 1979-06-06 |
DE2850969C2 (fr) | 1988-04-28 |
NL7811849A (nl) | 1979-06-07 |
SE437980B (sv) | 1985-03-25 |
FR2410635B1 (fr) | 1983-11-25 |
GB2009142B (en) | 1982-05-26 |
JPS6346013B2 (fr) | 1988-09-13 |
CA1104312A (fr) | 1981-07-07 |
NL185837C (nl) | 1990-08-01 |
ATA849978A (de) | 1984-09-15 |
GB2009142A (en) | 1979-06-13 |
US4126436A (en) | 1978-11-21 |
DE2850969A1 (de) | 1979-06-07 |
IT7830546A0 (it) | 1978-12-05 |
AT377748B (de) | 1985-04-25 |
IT1101525B (it) | 1985-10-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2410635A1 (fr) | Appareil pour reduire au minimum les variations de diametre de filaments etires | |
FR2417783A1 (fr) | Procede d'etirage de filaments optiques | |
FR2371345A1 (fr) | Procede pour conditionner des produits sous vide et dispositif pour la mise en oeuvre dudit procede | |
CH654711GA3 (en) | Process and apparatus for metallising fibres | |
FR2401103A1 (fr) | Procede et appareil de production de fibres de transmission optique | |
FR2373234A1 (fr) | Appareil pour enlever l'enveloppe de saucisses | |
FR2366860A1 (fr) | Appareil a fibres creuses pour le fractionnement de fluide, utilisable notamment comme rein artificiel | |
FR2403175A1 (fr) | Appareil pour remplir uniformement un moule creux | |
CH441018A (fr) | Capsule pour le bouchage d'un corps creux, procédé de fabrication de cette capsule et appareillage pour la mise en oeuvre du procédé | |
FR2394337A1 (fr) | Dispositif pour refroidir de l'acier en barres pendant le defilement | |
FR2566802A1 (fr) | Procede pour le rechauffage du gaz de soufflage d'un haut fourneau par un generateur de plasma | |
FR2404161A2 (fr) | Procede de fermeture etanche au vide de chacune des premieres extremites de quelques elements de transport creux debouchant dans une tete collectrice, et son application pour la detection de fuites | |
FR2450884A1 (fr) | Cloche en verre quartzeux pour la technologie des semi-conducteurs | |
CH466439A (fr) | Procédé pour l'obtention d'images à l'aide d'un détecteur à gaz et dispositif pour la mise en oeuvre du procédé | |
FR2361475A1 (fr) | Procede de fabrication continue de barreaux ou de tubes de silicium | |
FR2552658A1 (fr) | Porte-empreinte a injection pour prothese dentaire et maxillo-faciale | |
CH526100A (fr) | Procédé pour le remplissage d'un tronçon de tube capillaire mis sous vide et scellé et appareil pour la mise en oeuvre de ce procédé | |
CH354962A (fr) | Procédé pour contrôler de façon continue l'étanchéité d'un tube et appareil pour la mise en oeuvre de ce procédé | |
SE7810684L (sv) | Anordning for fyllning av en eller flerveggiga forpackningar | |
FR2393224A1 (fr) | Procede et appareil pour remplir une volume d'une matiere isolante sous forme de particules | |
CH463035A (fr) | Procédé de fabrication d'un article en une matière vitreuse et appareil pour la mise en oeuvre du procédé | |
FR1322320A (fr) | Procédé continu d'obtention de gallium très pur et appareillage pour la mise en oeuvre dudit procédé | |
CH683662GA3 (fr) | Procédé de traitement en continu d'un matériau allongé dans une enceinte de traitement, et dispositif pour la mise en oeuvre de ce procédé. | |
OA02642A (fr) | Procédé pour la fabrication de joints d'étanchéité pour capsule destinée au bouchage hermétique des corps creux munis d'un goulot appareillage mettant ce procédé en oeuvre et joints obtenus. | |
SU891517A1 (ru) | Устройство дл термоусадки пленки |