DE581741C - Method for operating induction furnaces with the melting channel surrounding the melting hearth - Google Patents

Method for operating induction furnaces with the melting channel surrounding the melting hearth

Info

Publication number
DE581741C
DE581741C DEH127936D DEH0127936D DE581741C DE 581741 C DE581741 C DE 581741C DE H127936 D DEH127936 D DE H127936D DE H0127936 D DEH0127936 D DE H0127936D DE 581741 C DE581741 C DE 581741C
Authority
DE
Germany
Prior art keywords
melting
induction furnaces
hearth
channel surrounding
metal
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
DEH127936D
Other languages
German (de)
Inventor
Otto Hoffmann
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.)
BERLIN ILSENBURGER METALLWERKE
Original Assignee
BERLIN ILSENBURGER METALLWERKE
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 BERLIN ILSENBURGER METALLWERKE filed Critical BERLIN ILSENBURGER METALLWERKE
Priority to DEH127936D priority Critical patent/DE581741C/en
Application granted granted Critical
Publication of DE581741C publication Critical patent/DE581741C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/08—Apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • 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
    • H05B6/16—Furnaces having endless cores
    • H05B6/20—Furnaces having endless cores having melting channel only
    • 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)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Description

Verfahren zum Betrieb von Induktionsöfen mit den Schmelzherd umgebendem Schmelzkanal Die Induktionsöfen mit einem den Schmelzherd umgebenden, insbesondere senkrechten Schmelzkanal haben den Nachteil, daß sie nach dem Erkalten nicht ohne weiteres wieder in Betrieb gesetzt werden können, weil das in dem Schmelzkanal befindliche Metall beim Erstarren abreißt, so daß dann kein geschlossener Stromweg vorhanden ist. Es hat sich gezeigt, daß dieser Nachteil dadurch vermieden werden kann, daß man beim vorübergehenden Außerbetriebsetzen des Ofens das im Schmelzkanal befindliche Metall durch künstliche Kühlung zuerst abkühlt, wobei das im Herd befindliche Metall zweckmäßig gleichzeitig warm gehalten wird, z. B. durch aufgelegte Holzkohle. Hierbei erstarrt also zuerst das im Schmelzkanal befindliche Metall im ganzen, und das im Herd befindliche Metall sinkt dann beim Erstarren auch, so daß das ganze im Ofen befindliche Metall nach dem Erstarren ein zusammenhängendes Ganzes bildet, mit dessen Hilfe der Ofen ohne weiteres wieder angeheizt werden kann.Method for operating induction furnaces with the melting hearth surrounding it Melting channel The induction furnaces with one surrounding the melting hearth, in particular vertical melt channels have the disadvantage that they are not without after cooling further can be put back into operation because that is located in the melt channel Metal tears off when solidifying, so that there is no closed current path is. It has been shown that this disadvantage can be avoided in that when the furnace is temporarily shut down, the one in the melt channel Metal is first cooled by artificial cooling, whereby the metal in the stove is conveniently kept warm at the same time, z. B. by applied charcoal. Here So first of all the metal in the melt channel solidifies as a whole, and that in the The metal in the stove sinks when it solidifies, so that the whole thing is in the oven located metal forms a coherent whole after solidification, with its The stove can be heated up again without further ado.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zum Betrieb von Induktionsöfen mit einem den Schmelzherd umgebenden Schmelzkanal, dadurch gekennzeichnet, daß bei vorübergehendem Außerbetriebsetzen des Ofens das im Schmelzkanal befindliche Metall durch künstliche Kühlung zuerst abgekühlt wird. PATENT CLAIMS: i. Method for operating induction furnaces with a the melting channel surrounding the melting hearth, characterized in that with temporary Shutting down the furnace, the metal located in the melt channel by artificial Cooling is cooled down first. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß das im Schmelzherd befindliche Metall während der künstlichen Kühlung des im Schmelzkanal befindlichen Metalls warm gehalten wird.2. The method according to claim i, characterized in that that the metal in the furnace during the artificial cooling of the im Melt channel located metal is kept warm.
DEH127936D 1931-07-29 1931-07-29 Method for operating induction furnaces with the melting channel surrounding the melting hearth Expired DE581741C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH127936D DE581741C (en) 1931-07-29 1931-07-29 Method for operating induction furnaces with the melting channel surrounding the melting hearth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH127936D DE581741C (en) 1931-07-29 1931-07-29 Method for operating induction furnaces with the melting channel surrounding the melting hearth

Publications (1)

Publication Number Publication Date
DE581741C true DE581741C (en) 1933-08-02

Family

ID=7175491

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH127936D Expired DE581741C (en) 1931-07-29 1931-07-29 Method for operating induction furnaces with the melting channel surrounding the melting hearth

Country Status (1)

Country Link
DE (1) DE581741C (en)

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