FR2130174A1 - Glass tube forming tool - of fused cast ceramic segments fastened together with a metal shaft - Google Patents

Glass tube forming tool - of fused cast ceramic segments fastened together with a metal shaft

Info

Publication number
FR2130174A1
FR2130174A1 FR7208646A FR7208646A FR2130174A1 FR 2130174 A1 FR2130174 A1 FR 2130174A1 FR 7208646 A FR7208646 A FR 7208646A FR 7208646 A FR7208646 A FR 7208646A FR 2130174 A1 FR2130174 A1 FR 2130174A1
Authority
FR
France
Prior art keywords
ceramic
tool
glass tube
forming tool
fastened together
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
FR7208646A
Other languages
French (fr)
Other versions
FR2130174B1 (en
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of FR2130174A1 publication Critical patent/FR2130174A1/en
Application granted granted Critical
Publication of FR2130174B1 publication Critical patent/FR2130174B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/484—Refractories by fusion casting
    • 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)
  • Ceramic Engineering (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Ceramic Products (AREA)
  • Glass Compositions (AREA)
  • Resistance Heating (AREA)

Abstract

Spreading tool, for the production of tubes of glass or similar material by a process in which the molten material runs onto the tool while it is rotating in a horizontal vertical or a downwards sloping position, such that the material runs around the tool uniformly due to its rotation and from the end of which the tube is drawn, comprises several rings of fused ceramic. Specifically the ceramic is a mixture of Al2O3 and ZrO2. The rings are assembled into a hollow tube and clamped together with a central shaft between ceramic end pieces. The shaft is fastened to an annulus between which and the first ceramic end piece a spring is located to take up differences in thermal expansion between the ceramic and the metal. The design allows for easy replacement of worn ceramic sections.
FR7208646A 1971-03-16 1972-03-13 Glass tube forming tool - of fused cast ceramic segments fastened together with a metal shaft Granted FR2130174A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712112692 DE2112692C3 (en) 1971-03-16 1971-03-16 Run-up bodies for a process for the production of glass tubes or rods

Publications (2)

Publication Number Publication Date
FR2130174A1 true FR2130174A1 (en) 1972-11-03
FR2130174B1 FR2130174B1 (en) 1975-10-24

Family

ID=5801748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7208646A Granted FR2130174A1 (en) 1971-03-16 1972-03-13 Glass tube forming tool - of fused cast ceramic segments fastened together with a metal shaft

Country Status (4)

Country Link
BE (1) BE780600A (en)
DE (1) DE2112692C3 (en)
FR (1) FR2130174A1 (en)
IT (1) IT949008B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049512A1 (en) * 2003-10-30 2005-06-02 Umicore Ag & Co. Kg Danner pipe
CN112429945A (en) * 2020-10-12 2021-03-02 中国建材国际工程集团有限公司 Centrifugal continuous forming equipment and method for producing glass tube

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19944270B4 (en) * 1999-09-15 2005-09-15 Schott Ag Method of shielding surfaces of glassmaking and glass processing tools and tools
DE10048815C1 (en) 2000-09-29 2002-01-03 Schott Glas Apparatus for producing a glass tube comprises a Danner blowpipe, and a nozzle for applying a glass stream on the casing surface of the blowpipe
EP3915950B1 (en) * 2020-05-29 2022-04-27 Schott Ag System for a glass drawing process and method for adjusting a system for a glass drawing process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR774192A (en) * 1933-08-29 1934-12-03 Jerome Et Bonnefoy & Cie Axis and its support perfected for the manufacture of glass tubes and rods
US2329164A (en) * 1941-04-25 1943-09-07 Sylvania Electric Prod Mandrel drive apparatus
FR1304603A (en) * 1961-10-27 1962-09-21 Gen Electric Co Ltd Glass tube and rod drawing apparatus
US3298808A (en) * 1965-05-11 1967-01-17 Macks Elmer Fred Concentric foraminous shaping means for tubes or bars
US3360363A (en) * 1965-02-01 1967-12-26 Union Carbide Corp Beryllium strengthened iron base alloy

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR774192A (en) * 1933-08-29 1934-12-03 Jerome Et Bonnefoy & Cie Axis and its support perfected for the manufacture of glass tubes and rods
US2329164A (en) * 1941-04-25 1943-09-07 Sylvania Electric Prod Mandrel drive apparatus
FR1304603A (en) * 1961-10-27 1962-09-21 Gen Electric Co Ltd Glass tube and rod drawing apparatus
US3360363A (en) * 1965-02-01 1967-12-26 Union Carbide Corp Beryllium strengthened iron base alloy
US3298808A (en) * 1965-05-11 1967-01-17 Macks Elmer Fred Concentric foraminous shaping means for tubes or bars

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049512A1 (en) * 2003-10-30 2005-06-02 Umicore Ag & Co. Kg Danner pipe
JP2007509834A (en) * 2003-10-30 2007-04-19 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト Danner pipe
US8336336B2 (en) 2003-10-30 2012-12-25 Umicore Ag & Co. Kg Danner pipe
CN112429945A (en) * 2020-10-12 2021-03-02 中国建材国际工程集团有限公司 Centrifugal continuous forming equipment and method for producing glass tube
CN112429945B (en) * 2020-10-12 2022-06-10 中国建材国际工程集团有限公司 Centrifugal continuous forming equipment and method for producing glass tube

Also Published As

Publication number Publication date
DE2112692B2 (en) 1979-02-22
IT949008B (en) 1973-06-11
DE2112692C3 (en) 1979-10-04
DE2112692A1 (en) 1972-09-28
BE780600A (en) 1972-07-03
FR2130174B1 (en) 1975-10-24

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Legal Events

Date Code Title Description
ST Notification of lapse