FR2076089A1 - Procede de raffinage par fusion de zone - Google Patents

Procede de raffinage par fusion de zone

Info

Publication number
FR2076089A1
FR2076089A1 FR7100725A FR7100725A FR2076089A1 FR 2076089 A1 FR2076089 A1 FR 2076089A1 FR 7100725 A FR7100725 A FR 7100725A FR 7100725 A FR7100725 A FR 7100725A FR 2076089 A1 FR2076089 A1 FR 2076089A1
Authority
FR
France
Prior art keywords
coils
raffinage
procede
zone
travel along
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.)
Withdrawn
Application number
FR7100725A
Other languages
French (fr)
Inventor
Jean-Marie Jacquerie
George Defosse
Paul Lams
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.)
Elphiac SA
Original Assignee
Elphiac SA
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 Elphiac SA filed Critical Elphiac SA
Publication of FR2076089A1 publication Critical patent/FR2076089A1/en
Withdrawn legal-status Critical Current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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • H05B6/102—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces the metal pieces being rotated while induction heated
    • 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
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/16—Heating of the molten zone
    • C30B13/20—Heating of the molten zone by induction, e.g. hot wire technique
    • 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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • 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
    • 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
    • H05B6/24—Crucible furnaces
    • 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
    • H05B6/30—Arrangements for remelting or zone melting

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • General Induction Heating (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Furnace Details (AREA)

Abstract

One or more induction coils, fed in phase by a medium frequency AC generator, travel along the length of a heat resistant housing which they surround, on a carriage running on guides. The coils are so arranged that the fields between them are in opposition and the effect of moving them is to force molten zones in the material being refined to travel along the crucible. This is mounted on water cooled rails within the housing and this is filled with a protective gas atmosphere. The heat output is regulated by an adjustably positioned short circuiting ring between the coils. May be used for refining e.g. Al.
FR7100725A 1970-01-14 1971-01-12 Procede de raffinage par fusion de zone Withdrawn FR2076089A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE744394A BE744394A (en) 1970-01-14 1970-01-14 Zone refining process
BE753738 1970-07-08

Publications (1)

Publication Number Publication Date
FR2076089A1 true FR2076089A1 (en) 1971-10-15

Family

ID=25656789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7100725A Withdrawn FR2076089A1 (en) 1970-01-14 1971-01-12 Procede de raffinage par fusion de zone

Country Status (7)

Country Link
US (1) US3762912A (en)
BE (1) BE744394A (en)
CA (1) CA928082A (en)
DE (1) DE2101653A1 (en)
FR (1) FR2076089A1 (en)
GB (1) GB1332034A (en)
SE (1) SE380734B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447690A (en) * 1981-12-28 1984-05-08 Selas Corporation Of America Inductive preheating of upset tubing
US5034586A (en) * 1990-05-03 1991-07-23 Ajax Magnethermic Corporation Induction heating assembly including an interposed closed conductive loop for suppression of intercoil coupling
EP1191948A2 (en) * 1999-06-11 2002-04-03 Neorx Corporation High dose radionuclide complexes for bone marrow suppression
JP4545899B2 (en) * 2000-07-31 2010-09-15 キヤノン株式会社 Heating apparatus and image forming apparatus
US7466740B2 (en) * 2005-12-07 2008-12-16 Ajax Tocco Magnethermic Corporation Induction coil having internal and external faradic rings

Also Published As

Publication number Publication date
US3762912A (en) 1973-10-02
SE380734B (en) 1975-11-17
CA928082A (en) 1973-06-12
DE2101653A1 (en) 1971-07-22
BE744394A (en) 1970-07-14
GB1332034A (en) 1973-10-03

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Legal Events

Date Code Title Description
ST Notification of lapse