WO2001098219A3 - Method for producing an sio2 blank and blank so produced - Google Patents

Method for producing an sio2 blank and blank so produced Download PDF

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Publication number
WO2001098219A3
WO2001098219A3 PCT/EP2001/006576 EP0106576W WO0198219A3 WO 2001098219 A3 WO2001098219 A3 WO 2001098219A3 EP 0106576 W EP0106576 W EP 0106576W WO 0198219 A3 WO0198219 A3 WO 0198219A3
Authority
WO
WIPO (PCT)
Prior art keywords
blank
sio2
layer
core glass
porous
Prior art date
Application number
PCT/EP2001/006576
Other languages
German (de)
French (fr)
Other versions
WO2001098219A2 (en
Inventor
Wolfgang Krock
Klaus Ruppert
Peter Kleinsorge
Original Assignee
Heraeus Tenevo Ag
Wolfgang Krock
Klaus Ruppert
Peter Kleinsorge
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 Heraeus Tenevo Ag, Wolfgang Krock, Klaus Ruppert, Peter Kleinsorge filed Critical Heraeus Tenevo Ag
Publication of WO2001098219A2 publication Critical patent/WO2001098219A2/en
Publication of WO2001098219A3 publication Critical patent/WO2001098219A3/en

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
    • C03B37/014—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]
    • C03B37/01413—Reactant delivery systems
    • 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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • 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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C03B2207/22—Inert gas details
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/36—Fuel or oxidant details, e.g. flow rate, flow rate ratio, fuel additives
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C03B2207/62—Distance
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C03B2207/66—Relative motion
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/70—Control measures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Melting And Manufacturing (AREA)

Abstract

According to known methods for producing SiO2 blanks, successive layers of SiO2 particles are deposited, by means of at least one deposition burner, on the peripheral surface of a support that rotates about its longitudinal axis, thereby forming the porous blank. The support is then removed. The aim of the invention is to facilitate removal of the support and to thereby allow the production of an SiO2 blank (1) whose inner walls are as flawless as possible. To this end, a hard layer sequence (5) which comprises the first layer is deposited, said hard layer sequence (5) having a higher density than the successive layers (6). The inventive porous SiO2 blank is characterized by a core glass zone (2) of porous quartz glass that consists of a plurality of success layers and that is coaxially surrounded by at least one peripheral glass zone (3) of porous quartz glass. Said core glass zone (2) has an inner core glass layer (5) that comprises the innermost layer and an outer core glass layer (6), the inner core glass layer (5) having a higher density than the outer core glass layer (6).
PCT/EP2001/006576 2000-06-19 2001-06-11 Method for producing an sio2 blank and blank so produced WO2001098219A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10029151.1 2000-06-19
DE2000129151 DE10029151C1 (en) 2000-06-19 2000-06-19 Process for the production of a SiO¶2¶ blank and SiO¶2¶ blank

Publications (2)

Publication Number Publication Date
WO2001098219A2 WO2001098219A2 (en) 2001-12-27
WO2001098219A3 true WO2001098219A3 (en) 2002-06-20

Family

ID=7645603

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/006576 WO2001098219A2 (en) 2000-06-19 2001-06-11 Method for producing an sio2 blank and blank so produced

Country Status (2)

Country Link
DE (1) DE10029151C1 (en)
WO (1) WO2001098219A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10157306C1 (en) * 2001-11-23 2003-06-05 Heraeus Tenevo Ag Production of a component made from doped quartz glass used in the manufacture of optical fibers comprises forming a sealing zone having a specified soot density in the region of a contact surface

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806570A (en) * 1972-03-30 1974-04-23 Corning Glass Works Method for producing high quality fused silica
JPS59190236A (en) * 1983-04-11 1984-10-29 Furukawa Electric Co Ltd:The Glass soot deposition by the vad method
JPS6046942A (en) * 1983-08-26 1985-03-14 Sumitomo Electric Ind Ltd Preparation of parent material for optical fiber
US4610709A (en) * 1984-01-24 1986-09-09 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US4731103A (en) * 1984-03-01 1988-03-15 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
JPS649821A (en) * 1987-07-01 1989-01-13 Shinetsu Sekiei Kk Sooty silica material and production thereof
JPH01160839A (en) * 1987-12-18 1989-06-23 Nippon Telegr & Teleph Corp <Ntt> Production of preform for optical fiber
JPH05339011A (en) * 1992-06-08 1993-12-21 Sumitomo Electric Ind Ltd Production of glass particulate deposited body
US5318611A (en) * 1992-03-13 1994-06-07 Ensign-Bickford Optical Technologies, Inc. Methods of making optical waveguides and waveguides made thereby
JPH07215727A (en) * 1994-02-04 1995-08-15 Yazaki Corp Optical fiber preform and its production
US5788730A (en) * 1995-07-27 1998-08-04 Heraeus Quarzglas Gmbh Process and apparatus for the production of a quartz glass blank
US6047564A (en) * 1996-07-18 2000-04-11 Heraeus Quarzglas Gmbh Method of producing quartz glass bodies
JP2000264647A (en) * 1999-03-12 2000-09-26 Shin Etsu Chem Co Ltd Porous glass preform

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233052A (en) * 1979-04-16 1980-11-11 Corning Glass Works Carbon coating for a starting member used in producing optical waveguides
US4298365A (en) * 1980-07-03 1981-11-03 Corning Glass Works Method of making a soot preform compositional profile
US4362545A (en) * 1980-07-03 1982-12-07 Corning Glass Works Support member for an optical waveguide preform

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806570A (en) * 1972-03-30 1974-04-23 Corning Glass Works Method for producing high quality fused silica
JPS59190236A (en) * 1983-04-11 1984-10-29 Furukawa Electric Co Ltd:The Glass soot deposition by the vad method
JPS6046942A (en) * 1983-08-26 1985-03-14 Sumitomo Electric Ind Ltd Preparation of parent material for optical fiber
US4610709A (en) * 1984-01-24 1986-09-09 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US4731103A (en) * 1984-03-01 1988-03-15 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
JPS649821A (en) * 1987-07-01 1989-01-13 Shinetsu Sekiei Kk Sooty silica material and production thereof
JPH01160839A (en) * 1987-12-18 1989-06-23 Nippon Telegr & Teleph Corp <Ntt> Production of preform for optical fiber
US5318611A (en) * 1992-03-13 1994-06-07 Ensign-Bickford Optical Technologies, Inc. Methods of making optical waveguides and waveguides made thereby
JPH05339011A (en) * 1992-06-08 1993-12-21 Sumitomo Electric Ind Ltd Production of glass particulate deposited body
JPH07215727A (en) * 1994-02-04 1995-08-15 Yazaki Corp Optical fiber preform and its production
US5788730A (en) * 1995-07-27 1998-08-04 Heraeus Quarzglas Gmbh Process and apparatus for the production of a quartz glass blank
US6047564A (en) * 1996-07-18 2000-04-11 Heraeus Quarzglas Gmbh Method of producing quartz glass bodies
JP2000264647A (en) * 1999-03-12 2000-09-26 Shin Etsu Chem Co Ltd Porous glass preform

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 182 27 April 1989 (1989-04-27) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 423 20 September 1989 (1989-09-20) *
PATENT ABSTRACTS OF JAPAN vol. 18, no. 176 25 March 1994 (1994-03-25) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 11 26 December 1995 (1995-12-26) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12 3 January 2001 (2001-01-03) *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 175 19 July 1985 (1985-07-19) *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 45 26 February 1985 (1985-02-26) *

Also Published As

Publication number Publication date
WO2001098219A2 (en) 2001-12-27
DE10029151C1 (en) 2001-08-16

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