FR2733224B1 - METHOD AND DEVICE FOR MANUFACTURING A BAR IN A MATERIAL HAVING A GRADIENT OF CROSS-SECTIONAL COMPOSITION, IN PARTICULAR A GLASS BAR - Google Patents

METHOD AND DEVICE FOR MANUFACTURING A BAR IN A MATERIAL HAVING A GRADIENT OF CROSS-SECTIONAL COMPOSITION, IN PARTICULAR A GLASS BAR

Info

Publication number
FR2733224B1
FR2733224B1 FR9504646A FR9504646A FR2733224B1 FR 2733224 B1 FR2733224 B1 FR 2733224B1 FR 9504646 A FR9504646 A FR 9504646A FR 9504646 A FR9504646 A FR 9504646A FR 2733224 B1 FR2733224 B1 FR 2733224B1
Authority
FR
France
Prior art keywords
bar
gradient
manufacturing
cross
sectional composition
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 - Fee Related
Application number
FR9504646A
Other languages
French (fr)
Other versions
FR2733224A1 (en
Inventor
Allan Mark Fredholm
Alain Kerdoncuff
Michel Prassas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corning Inc
Original Assignee
Corning Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Corning Inc filed Critical Corning Inc
Priority to FR9504646A priority Critical patent/FR2733224B1/en
Priority to EP96105559A priority patent/EP0738690B1/en
Priority to DE69613270T priority patent/DE69613270T2/en
Priority to ES96105559T priority patent/ES2159656T3/en
Priority to US08/630,652 priority patent/US6062047A/en
Priority to JP8098190A priority patent/JPH09110455A/en
Publication of FR2733224A1 publication Critical patent/FR2733224A1/en
Application granted granted Critical
Publication of FR2733224B1 publication Critical patent/FR2733224B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
    • C03B37/01274—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by extrusion or drawing
    • 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
    • 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
    • C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
    • C03B37/01268—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by casting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Compositions (AREA)
FR9504646A 1995-04-19 1995-04-19 METHOD AND DEVICE FOR MANUFACTURING A BAR IN A MATERIAL HAVING A GRADIENT OF CROSS-SECTIONAL COMPOSITION, IN PARTICULAR A GLASS BAR Expired - Fee Related FR2733224B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9504646A FR2733224B1 (en) 1995-04-19 1995-04-19 METHOD AND DEVICE FOR MANUFACTURING A BAR IN A MATERIAL HAVING A GRADIENT OF CROSS-SECTIONAL COMPOSITION, IN PARTICULAR A GLASS BAR
EP96105559A EP0738690B1 (en) 1995-04-19 1996-04-09 Method and device for manufacturing a rod of a material having a cross-sectional composition gradient
DE69613270T DE69613270T2 (en) 1995-04-19 1996-04-09 Method and device for producing a rod from a material with a variable gradient on average
ES96105559T ES2159656T3 (en) 1995-04-19 1996-04-09 PROCEDURE AND DEVICE FOR MANUFACTURING A BAR OF A MATERIAL THAT HAS A GRADIENT OF COMPOSITION VARIATION IN THE CROSS SECTION.
US08/630,652 US6062047A (en) 1995-04-19 1996-04-10 Device for manufacturing a rod of a material having a cross-sectional composition gradient
JP8098190A JPH09110455A (en) 1995-04-19 1996-04-19 Method and apparatus for producing rod having cross-section having gradient composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9504646A FR2733224B1 (en) 1995-04-19 1995-04-19 METHOD AND DEVICE FOR MANUFACTURING A BAR IN A MATERIAL HAVING A GRADIENT OF CROSS-SECTIONAL COMPOSITION, IN PARTICULAR A GLASS BAR

Publications (2)

Publication Number Publication Date
FR2733224A1 FR2733224A1 (en) 1996-10-25
FR2733224B1 true FR2733224B1 (en) 1997-07-04

Family

ID=9478230

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9504646A Expired - Fee Related FR2733224B1 (en) 1995-04-19 1995-04-19 METHOD AND DEVICE FOR MANUFACTURING A BAR IN A MATERIAL HAVING A GRADIENT OF CROSS-SECTIONAL COMPOSITION, IN PARTICULAR A GLASS BAR

Country Status (1)

Country Link
FR (1) FR2733224B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298808A (en) * 1965-05-11 1967-01-17 Macks Elmer Fred Concentric foraminous shaping means for tubes or bars
US3614197A (en) * 1967-04-27 1971-10-19 Semiconductor Res Found Solid optical wave guide having a radially varying refractive index
US4248614A (en) * 1979-03-19 1981-02-03 Corning Glass Works Method for drawing high-bandwidth optical waveguides
NL8204438A (en) * 1982-11-16 1984-06-18 Philips Nv METHOD AND APPARATUS FOR THE CONTINUOUS MANUFACTURE OF LONG-STRETCHED BODIES FROM AN UNFUSED STARTING MATERIAL.
JPS6246934A (en) * 1985-08-22 1987-02-28 Kokusai Denshin Denwa Co Ltd <Kdd> Method and apparatus for producing base material for fluoride glass fiber
JP2562705B2 (en) * 1990-02-08 1996-12-11 国際電信電話株式会社 Method and apparatus for manufacturing base material for fluoride glass fiber
FR2686597B1 (en) * 1992-01-28 1994-03-18 Alcatel Nv PROCESS FOR MANUFACTURING A GLASS TUBE, ESPECIALLY FLUORINATED GLASS.

Also Published As

Publication number Publication date
FR2733224A1 (en) 1996-10-25

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Legal Events

Date Code Title Description
ST Notification of lapse