GB1126037A - Improvements in or relating to a method and apparatus for melting materials of high melting-point - Google Patents

Improvements in or relating to a method and apparatus for melting materials of high melting-point

Info

Publication number
GB1126037A
GB1126037A GB53805/65A GB5380565A GB1126037A GB 1126037 A GB1126037 A GB 1126037A GB 53805/65 A GB53805/65 A GB 53805/65A GB 5380565 A GB5380565 A GB 5380565A GB 1126037 A GB1126037 A GB 1126037A
Authority
GB
United Kingdom
Prior art keywords
sheath
tube
discharge
coil
dec
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
GB53805/65A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1126037A publication Critical patent/GB1126037A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/30—Plasma torches using applied electromagnetic fields, e.g. high frequency or microwave energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/005—Fusing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/22—Remelting metals with heating by wave energy or particle radiation
    • C22B9/226—Remelting metals with heating by wave energy or particle radiation by electric discharge, e.g. plasma
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/04—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt
    • C30B11/08—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt every component of the crystal composition being added during the crystallisation
    • C30B11/10—Solid or liquid components, e.g. Verneuil method
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
    • 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
    • H05B11/00—Heating by combined application of processes covered by two or more of groups H05B3/00 - H05B7/00
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Plasma & Fusion (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Furnace Details (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1,126,037. Heating by arc discharge. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 Dec., 1965 [23 Dec., 1964], No. 53805/65. Heading H5H. [Also in Division C7] An electric gas discharge burner comprises a high-frequency A.C. coil 16 surrounding a sheath 1 of high m.p. material movable with respect to the coil and rotatable about its axis and means 33 for feeding pulverulent material to the sheath. The sheath 1 of quartz glass which may be cooled rotates in bearings 2, 3 mounted in plates 4, 5 rigidly connected by rods 6, 7, the assembly being movable on supports 17, 18. A water-cooled crucible 21 is mounted in the sheath below a transverse plate 19 containing an aperture 20. The discharge is started with the coil 16 near the top of the sheath by introducing gases through tubes 9, 10 to a head 8 above tube 1 and applying a potential across electrodes 14, 15. The discharge is moved towards wall 19 and controlled by the gas supply and rotational speed of the sheath. Material is introduced through tube 33 and accumulates at 34 above the plate 19. The gas supply is gradually stopped and the inner layer of the accumulation 34 melts and passes into the crucible the remainder near the sheath becoming sintered. When material which is electrically conducting at high temperatures is treated, an uninterrupted coating of material is avoided by providing thickened portions of the sheath. The lower part of the tube can be evacuated via aperture 25 to assist degassing. Wire, thin rod, tube and granular material of constant size of metals, alloys, oxides and carbides can be produced.
GB53805/65A 1964-12-23 1965-12-20 Improvements in or relating to a method and apparatus for melting materials of high melting-point Expired GB1126037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6414964A NL6414964A (en) 1964-12-23 1964-12-23

Publications (1)

Publication Number Publication Date
GB1126037A true GB1126037A (en) 1968-09-05

Family

ID=19791707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53805/65A Expired GB1126037A (en) 1964-12-23 1965-12-20 Improvements in or relating to a method and apparatus for melting materials of high melting-point

Country Status (9)

Country Link
US (1) US3436465A (en)
AT (1) AT272681B (en)
BE (1) BE674143A (en)
CH (1) CH444988A (en)
DE (1) DE1540994A1 (en)
FR (1) FR1461851A (en)
GB (1) GB1126037A (en)
NL (1) NL6414964A (en)
SE (1) SE313883B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390351A (en) * 1971-02-16 1975-04-09 Tetronics Research Dev Co Ltd High temperature treatment of materials
USRE28570E (en) * 1971-02-16 1975-10-14 High temperature treatment of materials
US3932171A (en) * 1972-09-24 1976-01-13 Tetronics Research And Development Company Process for high temperature treatment of materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124633A (en) * 1960-09-15 1964-03-10 Certificate of correction
US3250842A (en) * 1963-01-15 1966-05-10 Atomic Energy Commission Electron beam zone refining

Also Published As

Publication number Publication date
DE1540994A1 (en) 1970-01-15
FR1461851A (en) 1966-12-09
CH444988A (en) 1967-10-15
NL6414964A (en) 1966-06-24
US3436465A (en) 1969-04-01
AT272681B (en) 1969-07-10
BE674143A (en) 1966-06-21
SE313883B (en) 1969-08-25

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