GB973870A - All electrically heated shaft furnace for melting quartz - Google Patents

All electrically heated shaft furnace for melting quartz

Info

Publication number
GB973870A
GB973870A GB43692/61A GB4369261A GB973870A GB 973870 A GB973870 A GB 973870A GB 43692/61 A GB43692/61 A GB 43692/61A GB 4369261 A GB4369261 A GB 4369261A GB 973870 A GB973870 A GB 973870A
Authority
GB
United Kingdom
Prior art keywords
melt
mandrel
tube
zirconium oxide
heating wires
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.)
Expired
Application number
GB43692/61A
Other languages
English (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 GB973870A publication Critical patent/GB973870A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • C03B5/033—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by using resistance heaters above or in the glass bath, i.e. by indirect resistance heating
    • C03B5/0336—Shaft furnaces
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B3/00—Charging the melting furnaces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/225—Refining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S65/00—Glass manufacturing
    • Y10S65/04—Electric heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S65/00—Glass manufacturing
    • Y10S65/08—Quartz

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
GB43692/61A 1960-12-16 1961-12-06 All electrically heated shaft furnace for melting quartz Expired GB973870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP26237A DE1162974B (de) 1960-12-16 1960-12-16 Elektrisch beheizter Schachtofen zum Schmelzen von Quarz und Verfahren zum Herstellen von blasenfreiem Quarzglasrohr

Publications (1)

Publication Number Publication Date
GB973870A true GB973870A (en) 1964-10-28

Family

ID=7370375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43692/61A Expired GB973870A (en) 1960-12-16 1961-12-06 All electrically heated shaft furnace for melting quartz

Country Status (6)

Country Link
US (1) US3212871A (enExample)
BE (1) BE611579A (enExample)
CH (1) CH419468A (enExample)
DE (1) DE1162974B (enExample)
GB (1) GB973870A (enExample)
NL (1) NL272514A (enExample)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293399B (de) * 1966-03-25 1969-04-24 Walz Schmelzeinrichtung mit direkter elektrischer Widerstandsheizung zur Herstellung von Faeden und Fasern aus vorzugsweise hochschmelzbaren Stoffen
US3387961A (en) * 1965-01-25 1968-06-11 Corning Glass Works Method of reducing reboil in molten glass
US3607166A (en) * 1968-05-06 1971-09-21 Sylvania Electric Prod Manufacture of striation-free quartz tubing
US4030901A (en) * 1976-07-19 1977-06-21 Bell Telephone Laboratories, Incorporated Method for drawing fibers
US4600425A (en) * 1985-03-29 1986-07-15 Ppg Industries, Inc. Bubbler with protective sleeve or fluid coolant jacket
US6632086B1 (en) 2000-05-22 2003-10-14 Stanley M. Antczak Quartz fusion crucible
US6422861B1 (en) 2000-11-20 2002-07-23 General Electric Company Quartz fusion furnace and method for forming quartz articles
DE10348098B4 (de) * 2003-10-11 2006-04-20 Schott Ag Vorrichtung und Verfahren zum Herstellen von Rohren oder Stäben sowie Verwendung
DE102004001804B3 (de) * 2004-01-06 2005-10-27 Schott Ag Optische Komponente, Verfahren zu ihrer Herstellung, ihre Verwendung sowie Glasfaser oder Glasfaserpreform
EP2364956A1 (en) 2010-02-25 2011-09-14 Corning Incorporated Method for stabilizing a column of molten material
JP6940235B2 (ja) 2015-12-18 2021-09-22 ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー 高融点金属の溶融坩堝内での石英ガラス体の調製
CN108698883A (zh) 2015-12-18 2018-10-23 贺利氏石英玻璃有限两合公司 石英玻璃制备中的二氧化硅的喷雾造粒
KR20180095619A (ko) 2015-12-18 2018-08-27 헤래우스 크바르츠글라스 게엠베하 ＆ 컴파니 케이지 실리카 유리 제조 동안 규소 함량의 증가
WO2017103153A1 (de) 2015-12-18 2017-06-22 Heraeus Quarzglas Gmbh & Co. Kg Glasfasern und vorformen aus quarzglas mit geringem oh-, cl- und al-gehalt
EP3390303B1 (de) 2015-12-18 2024-02-07 Heraeus Quarzglas GmbH & Co. KG Herstellung von quarzglaskörpern mit taupunktkontrolle im schmelzofen
CN109153593A (zh) 2015-12-18 2019-01-04 贺利氏石英玻璃有限两合公司 合成石英玻璃粉粒的制备
TWI733723B (zh) 2015-12-18 2021-07-21 德商何瑞斯廓格拉斯公司 不透明石英玻璃體的製備
WO2017103131A1 (de) 2015-12-18 2017-06-22 Heraeus Quarzglas Gmbh & Co. Kg Verringern des erdalkalimetallgehalts von siliziumdioxidgranulat durch behandlung von kohlenstoffdotiertem siliziumdioxidgranulat bei hoher temperatur
KR20180094087A (ko) 2015-12-18 2018-08-22 헤래우스 크바르츠글라스 게엠베하 ＆ 컴파니 케이지 실리카 과립으로부터 실리카 유리 제품의 제조
CN108698894A (zh) 2015-12-18 2018-10-23 贺利氏石英玻璃有限两合公司 在多腔式烘箱中制备石英玻璃体
EP3628646A1 (de) * 2018-09-28 2020-04-01 Heraeus Quarzglas GmbH & Co. KG Mehrteiliger schmelztiegel zum ziehen eines glasstrangs, verfahren zur herstellung des schmelztiegels sowie vertikal-tiegelziehverfahren
EP3656744A1 (en) * 2018-11-23 2020-05-27 Heraeus Conamic UK Limited On-line annealing of large fused quartz ingots
EP3656746B1 (en) * 2018-11-23 2024-06-05 Heraeus Conamic UK Limited Method and apparatus for cutting a hollow quartz glass ingot
CN110156301B (zh) * 2019-06-21 2023-10-20 连云港福东正佑照明电器有限公司 一种石英管生产用连熔装置及生产方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL47449C (enExample) * 1937-03-12
US2410616A (en) * 1943-09-04 1946-11-05 Eastman Kodak Co Apparatus for molding lenses
US3025191A (en) * 1953-07-13 1962-03-13 Raytheon Co Crystal-growing apparatus and methods
US2686212A (en) * 1953-08-03 1954-08-10 Gen Electric Electric heating apparatus
US2892739A (en) * 1954-10-01 1959-06-30 Honeywell Regulator Co Crystal growing procedure
US2882648A (en) * 1954-11-01 1959-04-21 Bell Telephone Labor Inc Switch manufacture
US3013362A (en) * 1960-03-07 1961-12-19 Corning Glass Works Manufacture of semicrystalline ceramic bodies

Also Published As

Publication number Publication date
CH419468A (de) 1966-08-31
BE611579A (fr) 1962-03-30
NL272514A (enExample)
DE1162974B (de) 1964-02-13
US3212871A (en) 1965-10-19

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