JPS5678433A - Production of glass pipe - Google Patents

Production of glass pipe

Info

Publication number
JPS5678433A
JPS5678433A JP15240079A JP15240079A JPS5678433A JP S5678433 A JPS5678433 A JP S5678433A JP 15240079 A JP15240079 A JP 15240079A JP 15240079 A JP15240079 A JP 15240079A JP S5678433 A JPS5678433 A JP S5678433A
Authority
JP
Japan
Prior art keywords
glass
heaters
temperature
melted glass
melted
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
JP15240079A
Other languages
Japanese (ja)
Other versions
JPS5838364B2 (en
Inventor
Masakiyo Tachibana
Masakatsu Shimizu
Shiro Hirai
Yoichi Furuse
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.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co Ltd
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 Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP54152400A priority Critical patent/JPS5838364B2/en
Publication of JPS5678433A publication Critical patent/JPS5678433A/en
Publication of JPS5838364B2 publication Critical patent/JPS5838364B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:The temperatures of melted glass in the main part and in the nozzle part of a crucible are controlled separately with different heaters, thus producing, with industrial simplicity, glass pipes with uniform wall thickness with high accuracy even when a small amount of pipes are produced. CONSTITUTION:Nozzle 2 is sealed at the bottom part under cooling with water cooler 13 and glass is fed until the level of the melted glass comes to a set height. Then, heaters 6, 7 are used to keep the temperature of the melted glass to 1050 deg.C at which the viscosity of melted glass shows about 10<1.5> poise for logner than 6hr to effect deaeration and uniform distribution of temperature. Then, heaters 6, 7, and 8 are set to 720, 735 and 685 deg.C respectively, at which the viscosity becomes about 10<5.2>, 10<4.5> and 10<6.2> poises respectively, and kept for 1.5hr to make each part the set tempeature. The water cooler 13 is demounted and a glass pipe is made under controlling heater 8 according to the temperature sensed by thermocouple 11, for example, a glass pipe of 25mm. outside diameter and 1mm. wall thickness 15 is made at a speed of 0.5m/min.
JP54152400A 1979-11-27 1979-11-27 Glass pipe manufacturing method Expired JPS5838364B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54152400A JPS5838364B2 (en) 1979-11-27 1979-11-27 Glass pipe manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54152400A JPS5838364B2 (en) 1979-11-27 1979-11-27 Glass pipe manufacturing method

Publications (2)

Publication Number Publication Date
JPS5678433A true JPS5678433A (en) 1981-06-27
JPS5838364B2 JPS5838364B2 (en) 1983-08-23

Family

ID=15539677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54152400A Expired JPS5838364B2 (en) 1979-11-27 1979-11-27 Glass pipe manufacturing method

Country Status (1)

Country Link
JP (1) JPS5838364B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62109848U (en) * 1985-12-27 1987-07-13

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS455651Y1 (en) * 1967-01-25 1970-03-18
JPS5138917U (en) * 1974-09-14 1976-03-23
JPS5313613A (en) * 1976-07-23 1978-02-07 Toshiba Ceramics Co Apparatus for continuous production of rod or tube of opaque vitreous material
JPS5331166A (en) * 1976-09-03 1978-03-24 Citizen Watch Co Ltd Lighting devi e of electronic watch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS455651Y1 (en) * 1967-01-25 1970-03-18
JPS5138917U (en) * 1974-09-14 1976-03-23
JPS5313613A (en) * 1976-07-23 1978-02-07 Toshiba Ceramics Co Apparatus for continuous production of rod or tube of opaque vitreous material
JPS5331166A (en) * 1976-09-03 1978-03-24 Citizen Watch Co Ltd Lighting devi e of electronic watch

Also Published As

Publication number Publication date
JPS5838364B2 (en) 1983-08-23

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