JPS5617933A - Manufacture of quartz glass pipe having high axial symmetry - Google Patents

Manufacture of quartz glass pipe having high axial symmetry

Info

Publication number
JPS5617933A
JPS5617933A JP9235679A JP9235679A JPS5617933A JP S5617933 A JPS5617933 A JP S5617933A JP 9235679 A JP9235679 A JP 9235679A JP 9235679 A JP9235679 A JP 9235679A JP S5617933 A JPS5617933 A JP S5617933A
Authority
JP
Japan
Prior art keywords
pipe
quartz glass
rod
base alloy
manufacture
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
Application number
JP9235679A
Other languages
Japanese (ja)
Other versions
JPS603014B2 (en
Inventor
Ryuji Kobayashi
Teruzo Ito
Toshiro Kimura
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP9235679A priority Critical patent/JPS603014B2/en
Publication of JPS5617933A publication Critical patent/JPS5617933A/en
Publication of JPS603014B2 publication Critical patent/JPS603014B2/en
Expired 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
    • C03B37/01205—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
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/045—Tools or apparatus specially adapted for re-forming tubes or rods in general, e.g. glass lathes, chucks
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/047—Re-forming tubes or rods by drawing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE:To manufacture a titled quartz glass pipe while avoiding the thermal dissociation of SiO2 by putting a rod consisting of a specified metal and its alloy having a m.p. higher than that of quartz glass and axial symmetry higher than that of quartz glass in an initial quartz glass pipe, hermetically sealing the pipe in vacuum, and pulling out the rod under specified conditions to form the titled pipe. CONSTITUTION:Rod 2 consisting of Mo and an Mo-base alloy, Ta and a Ta-base alloy or W and a W-base alloy and having a predetermined size is put in initial quartz glass pipe 1, and pipe 1 is evacuated and hermetically sealed to maintain the degree of the vacuum at <=1Torr. The atmospheric pressure of pipe 1 is then returned to ordinary pressure and pipe 1 is passed through a circular furnace of 1200-1500 deg.C at 4mm./min rate to stick pipe 1 to the outside of rod 2 by softening. After removing both ends with a cutter, pipe 1 is attached to a glass lathe and turned around rod 2 as an axis to cut the outside periferal surface of pipe 1, resulting in a uniform thickness. Finally, rod 2 is pulled out to obtain a product.
JP9235679A 1979-07-20 1979-07-20 Manufacturing method of quartz glass tube with high axial symmetry Expired JPS603014B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9235679A JPS603014B2 (en) 1979-07-20 1979-07-20 Manufacturing method of quartz glass tube with high axial symmetry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9235679A JPS603014B2 (en) 1979-07-20 1979-07-20 Manufacturing method of quartz glass tube with high axial symmetry

Publications (2)

Publication Number Publication Date
JPS5617933A true JPS5617933A (en) 1981-02-20
JPS603014B2 JPS603014B2 (en) 1985-01-25

Family

ID=14052111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9235679A Expired JPS603014B2 (en) 1979-07-20 1979-07-20 Manufacturing method of quartz glass tube with high axial symmetry

Country Status (1)

Country Link
JP (1) JPS603014B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03174335A (en) * 1990-08-03 1991-07-29 Mitsubishi Cable Ind Ltd Manufacture of pipe made of pure silica having uniform inner diameter
US5785729A (en) * 1992-11-19 1998-07-28 Heraeus Quarzglas Gmbh Method for manufacturing large-sized quartz glass tube
EP3156377A1 (en) * 2015-10-13 2017-04-19 Schott AG Wolfram-containing forming mandrel for glass forming
IT201900014889A1 (en) * 2019-08-22 2021-02-22 Levi Dancona Pier Lorenzo CENTRAL AND ARMRESTS OF GLASS CHANDELIERS WITH FLOWER SPOTLIGHTS AND LEAVES BELOW

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03174335A (en) * 1990-08-03 1991-07-29 Mitsubishi Cable Ind Ltd Manufacture of pipe made of pure silica having uniform inner diameter
JPH0530773B2 (en) * 1990-08-03 1993-05-10 Mitsubishi Cable Ind Ltd
US5785729A (en) * 1992-11-19 1998-07-28 Heraeus Quarzglas Gmbh Method for manufacturing large-sized quartz glass tube
EP3156377A1 (en) * 2015-10-13 2017-04-19 Schott AG Wolfram-containing forming mandrel for glass forming
IT201900014889A1 (en) * 2019-08-22 2021-02-22 Levi Dancona Pier Lorenzo CENTRAL AND ARMRESTS OF GLASS CHANDELIERS WITH FLOWER SPOTLIGHTS AND LEAVES BELOW

Also Published As

Publication number Publication date
JPS603014B2 (en) 1985-01-25

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