JPS5650139A - Manufacture of anhydrous quartz glass tube - Google Patents

Manufacture of anhydrous quartz glass tube

Info

Publication number
JPS5650139A
JPS5650139A JP12442679A JP12442679A JPS5650139A JP S5650139 A JPS5650139 A JP S5650139A JP 12442679 A JP12442679 A JP 12442679A JP 12442679 A JP12442679 A JP 12442679A JP S5650139 A JPS5650139 A JP S5650139A
Authority
JP
Japan
Prior art keywords
preform
layer
quartz glass
heated
gas
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
JP12442679A
Other languages
Japanese (ja)
Other versions
JPS5737540B2 (en
Inventor
Takao Edahiro
Takao Shioda
Shinji Araki
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.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura Ltd
Nippon Telegraph and Telephone 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 Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP12442679A priority Critical patent/JPS5650139A/en
Publication of JPS5650139A publication Critical patent/JPS5650139A/en
Publication of JPS5737540B2 publication Critical patent/JPS5737540B2/ja
Granted 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
    • C03B37/014—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]
    • C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • C03B37/0146—Furnaces therefor, e.g. muffle tubes, furnace linings

Landscapes

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

Abstract

PURPOSE:To directly manufacture an anhydrous quartz glass tube of high purity without forming a glass bulk by heat volatilizing a high temp. volatile substance in the inner layer of a two-layer porous preform, dehydrating the outer layer, and converting the preform into transparent glass. CONSTITUTION:Inner preform 14 is deposited on the bottom of rotating and rising substrate 13 with burner 10, and outer preform 16 on preform 14 with burner 12 to form a two-layer porous preform. Preform 16 is made of quartz glass fine powder 143 contg. carbon soot 141. The two-layer preform is then heated with heater 18, Cl2 or other gas for anhydrous treatment and O2 gas etc. are introduced into the system from inlets 20, 22, respectively to dehydrate outer preform 16. At this time, inner preform 14 is also heated to a high temp., and soot 141 combines with O2 and disappears. Outer preform 16 is converted into transparent glass by heating with heater 24, and after treating the inside with hydrofluoric acid the preform is heated and drawn to a predetermined diameter in O2 gas.
JP12442679A 1979-09-27 1979-09-27 Manufacture of anhydrous quartz glass tube Granted JPS5650139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12442679A JPS5650139A (en) 1979-09-27 1979-09-27 Manufacture of anhydrous quartz glass tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12442679A JPS5650139A (en) 1979-09-27 1979-09-27 Manufacture of anhydrous quartz glass tube

Publications (2)

Publication Number Publication Date
JPS5650139A true JPS5650139A (en) 1981-05-07
JPS5737540B2 JPS5737540B2 (en) 1982-08-10

Family

ID=14885185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12442679A Granted JPS5650139A (en) 1979-09-27 1979-09-27 Manufacture of anhydrous quartz glass tube

Country Status (1)

Country Link
JP (1) JPS5650139A (en)

Also Published As

Publication number Publication date
JPS5737540B2 (en) 1982-08-10

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