GB1487446A - Glass manufacture - Google Patents

Glass manufacture

Info

Publication number
GB1487446A
GB1487446A GB2008075A GB2008075A GB1487446A GB 1487446 A GB1487446 A GB 1487446A GB 2008075 A GB2008075 A GB 2008075A GB 2008075 A GB2008075 A GB 2008075A GB 1487446 A GB1487446 A GB 1487446A
Authority
GB
United Kingdom
Prior art keywords
melt
susceptor
reaction
silica
silicon
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
GB2008075A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2008075A priority Critical patent/GB1487446A/en
Priority to NL7604758A priority patent/NL181103C/en
Priority to AU13647/76A priority patent/AU498107B2/en
Priority to FR7613918A priority patent/FR2310975A1/en
Priority to IT2314076A priority patent/IT1060422B/en
Priority to ES447884A priority patent/ES447884A1/en
Publication of GB1487446A publication Critical patent/GB1487446A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B15/00—Drawing glass upwardly from the melt
    • C03B15/14—Drawing tubes, cylinders, or rods from the melt
    • C03B15/16—Drawing tubes, cylinders or rods, coated with coloured layers
    • 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
    • C03B5/021—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by induction heating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/653—Processes involving a melting step
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16547—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies voltage or current in AC supplies
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/367—Coil arrangements for melting furnaces

Abstract

1487446 Making glass STANDARD TELEPHONES & CABLES Ltd 13 May 1975 20080/75 Heading C1M A method of making a glass comprises forming a melt of one or some of the constituents of the glass, or precursors thereof, which melt may include one or more phases, and adding the remaining constituent(s) by at least one chemical vapour deposition reaction. The reaction may be a hydrogen-free reaction between a halide and oxygen, and may be employed to deposit Al 2 O 3 , As 2 O 3 , B 2 O 3 or SiO 2 . More than one oxide may be deposited either successively or simultaneously (e.g. P 2 O 5 , B 2 O 3 or As 2 O 3 may be co-deposited with SiO 2 ). A melt 13 may be formed in a silica crucible 12 which is disposed inside silica jacket 11, through which jacket 11 coolant nitrogen gas passes. The melt 13 is heated by r.f. induction coil 10 (which is water-cooled), the r.f. field coupling with susceptor 15. Crucible 12, susceptor 15 and alumina supports 14, 16 are all mounted so as to be rotated and/or raised or lowered by means of silica support 17. The susceptor 15 may be of graphite (which may be coated with silicon, silica or silicon carbide) or of silicon. Susceptor 15 heats the melt until a temperature of, e.g., 800-1000‹ C. is reached, when the r.f. field may directly heat the melt 13, the susceptor 15 then being removed. The constituent(s) to be added are supplied by passing a reaction mixture (e.g. halide vapour entrained in oxygen) through pipe 19 to just above the melt surface, where the deposition reaction occurs, the reaction being induced thermally or by the action of the r.f. field.
GB2008075A 1975-05-13 1975-05-13 Glass manufacture Expired GB1487446A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB2008075A GB1487446A (en) 1975-05-13 1975-05-13 Glass manufacture
NL7604758A NL181103C (en) 1975-05-13 1976-05-05 METHOD FOR PREPARING PURE GLASS
AU13647/76A AU498107B2 (en) 1975-05-13 1976-05-05 Glass manufacture
FR7613918A FR2310975A1 (en) 1975-05-13 1976-05-10 VERY PURE GLASSES AND THEIR MANUFACTURING PROCESS
IT2314076A IT1060422B (en) 1975-05-13 1976-05-11 GLASS MANUFACTURE
ES447884A ES447884A1 (en) 1975-05-13 1976-05-13 Glass manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2008075A GB1487446A (en) 1975-05-13 1975-05-13 Glass manufacture

Publications (1)

Publication Number Publication Date
GB1487446A true GB1487446A (en) 1977-09-28

Family

ID=10140035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2008075A Expired GB1487446A (en) 1975-05-13 1975-05-13 Glass manufacture

Country Status (6)

Country Link
AU (1) AU498107B2 (en)
ES (1) ES447884A1 (en)
FR (1) FR2310975A1 (en)
GB (1) GB1487446A (en)
IT (1) IT1060422B (en)
NL (1) NL181103C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521245A4 (en) * 2018-08-28 2019-12-15 Ib Eng Gmbh furnace

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648065A1 (en) * 1989-06-12 1990-12-14 Solvay DEVICE FOR RECOVERING BY MELTING THE METAL CONSTITUTING A FUSE CORE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7408905A (en) * 1973-07-05 1975-01-07 Int Standard Electric Corp METHOD AND EQUIPMENT FOR THE PREPARATION OF GLASS.
GB1439261A (en) * 1973-08-30 1976-06-16 Standard Telephones Cables Ltd Production of clad glass rod

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521245A4 (en) * 2018-08-28 2019-12-15 Ib Eng Gmbh furnace
AT521245B1 (en) * 2018-08-28 2019-12-15 Ib Eng Gmbh furnace

Also Published As

Publication number Publication date
AU498107B2 (en) 1979-02-08
FR2310975A1 (en) 1976-12-10
ES447884A1 (en) 1977-07-16
NL181103B (en) 1987-01-16
IT1060422B (en) 1982-08-20
NL181103C (en) 1987-06-16
FR2310975B1 (en) 1980-08-01
NL7604758A (en) 1976-11-16
AU1364776A (en) 1977-11-10

Similar Documents

Publication Publication Date Title
CA1103104A (en) Process for applying a protective layer to shaped carbon bodies
ES8606836A1 (en) Oxidation prohibitive coatings for carbonaceous articles.
GB1213156A (en) Manufacturing filamentary silicon carbide crystals
JPS6241738A (en) Synthesis of gas phase sedimented oxidated product
JPS5688836A (en) Preparation of glass stock for optical fiber
US4741925A (en) Method of forming silicon nitride coating
GB1517445A (en) Panel of anisotropic glass ceramic and method for its manufacture
CA1250131A (en) Melt consolidation of silicon powder
US4717693A (en) Process for producing beta silicon nitride fibers
US4410504A (en) Method of producing high density carbon
DE69721260D1 (en) FIRE-RESISTANT COMPOSITE MATERIALS PROTECTED FROM OXIDATION AT HIGHER TEMPERATURES, PRECURSORS OF THESE MATERIALS AND THEIR PRODUCTION
GB966464A (en) Method of forming single crystal films
GB1521231A (en) Induction furnace
JPS57158370A (en) Formation of metallic thin film
GB1487446A (en) Glass manufacture
US4054708A (en) Film of pyrolytic graphite having bi-directional reinforcing properties
JPS55104999A (en) Production of silicon carbide crystal layer
US4202682A (en) Glass manufacture
WO1983003599A1 (en) Doped optical fiber
JPS6473078A (en) C.v.d. device
JPS61291484A (en) Graphite crucible
JPS59162143A (en) Production of synthetic quartz
JPS63166789A (en) Graphite crucible used in pulling up device for silicon single crystal and production thereof
JPS62138385A (en) Device for pulling semiconductor single crystal
Evans et al. Advanced Materials and Processes

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee