CH89732A - Melting and casting processes for metals. - Google Patents

Melting and casting processes for metals.

Info

Publication number
CH89732A
CH89732A CH89732DA CH89732A CH 89732 A CH89732 A CH 89732A CH 89732D A CH89732D A CH 89732DA CH 89732 A CH89732 A CH 89732A
Authority
CH
Switzerland
Prior art keywords
chamber
melting
metals
crucible
metal
Prior art date
Application number
Other languages
German (de)
Inventor
Louis De Bats Jean Herbert
Original Assignee
Louis De Bats Jean Herbert
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 Louis De Bats Jean Herbert filed Critical Louis De Bats Jean Herbert
Publication of CH89732A publication Critical patent/CH89732A/en

Links

Classifications

    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0075—Charging or discharging vertically, e.g. through a bottom opening
    • 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
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • F27D2007/066—Vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

  

  Schmelz- und Giessverfahren für Metalle.    Die Erfindung     betrifft    ein Verfahren zum  Schmelzen und (liessen von Metall.  



  Die Zeichnung veranschaulicht eine bei  spielsweise     Ausführungsforrii    des Erfindungs  gegenstandes.  



       Fig.    1 ist ein Schnitt durch die Vorrich  tung mit dem mit geschmolzenem Metall ge  füllten Tiegel;       Fig.    2 ist ein senkrechter Schnitt nach  der Linie     II-II    der     Fig.    1 mit dem Tiegel  in der obern Stellung, in welcher der Inhalt  dem Heizmittel ausgesetzt wird;       Fig.    3 ist ein     wagrerhter    Schnitt nach  der Linie     Irr-III    der     Fig.    2 mit dein Tie  gel in der untern Stellung;       Fig.    4 ist ein senkrechter Schnitt nach  der Linie     IV-        IV    der     Fig.2.     



  In der Schmelzkammer 5 wird mittelst  eines elektrischen Stromes die erforderliche  Hitze erzeugt. An Stelle eines solchen elek  trischen     Lichtbogenofens    kann ein Strahl  bogenofen oder irgend ein anderer Ofen Ver  wendung finden. Ohne Rücksicht auf die Art  des zu verwendenden Ofens sollte der in der  Heizkammer erzeugte Gasdruck im Stande    sein, das Eindringen von Aussenluft in die  Kammer zu verhindern.  



  In dem     obern        Kammerraum    5, durch welche  von oben die Heizelektroden 8, 9 treten, ist  ein Tiegel 10 vorgesehen. Der Boden 11 die  ses Raumes 5 ist vermittelst eines     h5        drau-          lischen    Zylinders 12 senkrecht einstellbar.  Der Tiegel ist auf dem     Kammerboden    an  geordnet, welcher     finit    der Wandung der Kam  mer durch einen     Sandverschluss    13 in Ver  bindung steht. Wenn der     Schmelzvorgang     beendet ist, wird der Boden 11 nach abwärts  in den untern     Kammerraum    14 bewegt.

   Die  ser Teil 14 ist mit einer Giesskammer 15  verbunden, welche eine Tür<B>16</B> aufweist und  zur Aufnahme einer Giessform 17 dient. Durch  die     Seitenwandung    des Raumes 14 tritt ein       Rohr    18, an dessen     üinern    Ende Greifer 19  befestigt sind, welche vermittelst einer Schrau  be 20 verstellbar sind. Diese Greifer     erfassen     den Tiegel 10, wenn dieser in die untere  Stellung in dein Raum 14 bewegt wird. An  dem anderen Ende der Leitung 18 ist eine  in einem Kurvenschlitz eines Sektors geführte  Stange 21 vorgesehen, welche in irgend einer  bestimmten Stellung festgestellt werden kann.

        Eine an dein obern Ende der     Giesskammer    15  angeschlossene Rohrleitung     22    verbindet die       Kammer    mit einer Vakuumpumpe 23. Der       Kanrmerraunr    14 weist eine Tür 24 auf.  



  Das     Verfahren    wird auf folgende Weise  durchgeführt  Das zu schmelzende     Material    wird in den  Tiegel 10     eingebracht.    Der Tiegel wird auf  den     bewegli < #lrerr        Boden    11 der     Kammer    5       auf--esetzt,        wenn    sich der Boden in der untern       Stt-llung    3 der Kammer 14 befindet.

   Nun  wird der     Bodcn    durch den hydraulischen Zy  linder 12 in die Stellung B bewegt und dem       Huizmittel    ausgesetzt, bis das Metall flüssig       wir;l.    In der Kammer 5 befindet sich zu     die-          ser-    Zeit nur eine geringe Luftmenge oder  nicht     oxydicrt-rides    Gas.

   Nach erfolgter     Be-          endIgun;;    du,     Schmelzvorganges    wird der       BoOlen    11 in die Stellung A     zurückgeführt,     in ;welcher     dur    Tiegel 10 von     dun    (freifern 19       erfala't    wird. In     der    Zwischenzeit entleert die  Luftpumpe      _die    Luft aus dem     Kammer-          raum    14 und der     Giefjkarnmer    15 und treibt       div    Luft aus der     Kammer    5 aus.

   Nachdem  die richtige     Luftleere    vorhanden ist, wird der    Tiegel 10     rirngestülpt    und das flüssige     -Metall     in die Form 17 abgeführt.  



  Statt Luft abzusaugen, kann     inertes    Gas  unter     Druck    durch das Rohr     fi    in die     Kam-          rner    5 eingeführt werden, welches in die  Kammern 14, 15 zieht und die darin enthal  tene Luft austreibt.     Wenn    dieser Druck die  erforderliche Stärke erreicht, um ein     Eindrin-          gen    der Aussenluft zu     verhindern,    kann das       Unigiessen    des     Metalles    aus dem Tiegel vor  sich gehen.



  Melting and casting processes for metals. The invention relates to a method for melting and (leaving metal.



  The drawing illustrates an example embodiment of the invention.



       Fig. 1 is a section through the device Vorrich with the molten metal GE filled crucible; Fig. 2 is a vertical section on the line II-II of Fig. 1 with the crucible in the upper position in which the contents are exposed to the heating means; Fig. 3 is a horizontal section along the line Irr-III of Figure 2 with your Tie gel in the lower position; FIG. 4 is a vertical section along the line IV-IV of FIG.



  The required heat is generated in the melting chamber 5 by means of an electric current. Instead of such an electric arc furnace, a beam arc furnace or any other furnace can be used. Regardless of the type of furnace to be used, the gas pressure generated in the heating chamber should be able to prevent outside air from entering the chamber.



  In the upper chamber space 5, through which the heating electrodes 8, 9 pass from above, a crucible 10 is provided. The floor 11 of this space 5 can be adjusted vertically by means of an external cylinder 12. The crucible is arranged on the chamber floor, which is finitely connected to the wall of the chamber through a sand seal 13. When the melting process has ended, the base 11 is moved downward into the lower chamber space 14.

   This part 14 is connected to a casting chamber 15, which has a door 16 and is used to receive a casting mold 17. Through the side wall of the space 14, a tube 18 occurs, at the üinern end of which grippers 19 are attached, which be 20 by means of a screw are adjustable. These grippers grasp the crucible 10 when it is moved into the lower position in your room 14. At the other end of the line 18, a rod 21 guided in a curved slot of a sector is provided, which rod can be fixed in any particular position.

        A pipe 22 connected to the upper end of the casting chamber 15 connects the chamber to a vacuum pump 23. The canister chamber 14 has a door 24.



  The process is carried out in the following manner. The material to be melted is placed in the crucible 10. The crucible is placed on the movable floor 11 of the chamber 5 when the floor is in the lower position 3 of the chamber 14.

   The bottom is now moved by the hydraulic cylinder 12 into position B and exposed to the heating medium until the metal becomes liquid; At this time there is only a small amount of air or non-oxidic gas in the chamber 5.

   After completion ;; During the melting process, the pan 11 is returned to position A, in; which is filled by crucible 10 from free 19. In the meantime, the air pump empties the air from the chamber 14 and the Giefjkarnmer 15 and drives various Air out of chamber 5.

   After the correct air void is present, the crucible 10 is turned inside out and the liquid metal is discharged into the mold 17.



  Instead of sucking off air, inert gas can be introduced under pressure through the pipe fi into the chamber 5, which gas draws into the chambers 14, 15 and expels the air contained therein. When this pressure reaches the required strength to prevent the outside air from penetrating, the metal can be poured out of the crucible.

 

Claims (1)

PATENTANSPRUCH: Schmelz- und Giessverfahren für Metalle, dadurch gekennzeichnet, dass man das Metall in einem Ofen schmilzt, in welchem keine Verbindung mit dem Metall eingehende Gase vorhanden sind, und dann in einer andern Kammer giesst, welche von der Aussenluft abgesperrt ist, derart, dass das erhitzte 3le- tall zwischen beiden Verfahrenvorgängen der Einwirkung der Aussenluft entzogen ist. PATENT CLAIM: Melting and casting process for metals, characterized in that the metal is melted in a furnace in which there are no gases entering into the metal, and then poured in another chamber which is shut off from the outside air in such a way that the heated 3 metal is removed from the action of the outside air between the two processes.
CH89732D 1920-08-26 1920-08-26 Melting and casting processes for metals. CH89732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH89732T 1920-08-26

Publications (1)

Publication Number Publication Date
CH89732A true CH89732A (en) 1921-06-16

Family

ID=4346894

Family Applications (1)

Application Number Title Priority Date Filing Date
CH89732D CH89732A (en) 1920-08-26 1920-08-26 Melting and casting processes for metals.

Country Status (1)

Country Link
CH (1) CH89732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779217A1 (en) * 1998-06-02 1999-12-03 Francois Studer Sa HEAT TREATMENT PLANT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779217A1 (en) * 1998-06-02 1999-12-03 Francois Studer Sa HEAT TREATMENT PLANT
WO1999063289A1 (en) * 1998-06-02 1999-12-09 Studer François S.A. Heat processing installation

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