EP0200671A2 - Furnace, particularly a metal-smelting or heat-retaining furnace - Google Patents

Furnace, particularly a metal-smelting or heat-retaining furnace Download PDF

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Publication number
EP0200671A2
EP0200671A2 EP86730054A EP86730054A EP0200671A2 EP 0200671 A2 EP0200671 A2 EP 0200671A2 EP 86730054 A EP86730054 A EP 86730054A EP 86730054 A EP86730054 A EP 86730054A EP 0200671 A2 EP0200671 A2 EP 0200671A2
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EP
European Patent Office
Prior art keywords
furnace
liquid metal
immersion
metal bath
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.)
Withdrawn
Application number
EP86730054A
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German (de)
French (fr)
Other versions
EP0200671A3 (en
Inventor
Günther Schmidt
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.)
Strikfeld W and Koch GmbH
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Strikfeld W and Koch GmbH
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 Strikfeld W and Koch GmbH filed Critical Strikfeld W and Koch GmbH
Publication of EP0200671A2 publication Critical patent/EP0200671A2/en
Publication of EP0200671A3 publication Critical patent/EP0200671A3/en
Withdrawn legal-status Critical Current

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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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • 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
    • F27B14/08—Details specially adapted for crucible or pot furnaces
    • F27B14/14—Arrangements of heating devices
    • 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
    • F27B3/20—Arrangements of heating devices
    • 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
    • F27B2014/002—Smelting process, e.g. sequences to melt a specific material
    • 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
    • F27B14/08—Details specially adapted for crucible or pot furnaces
    • F27B2014/0875—Two zones or chambers, e.g. one used 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0008—Resistor heating
    • F27D2099/0011—The resistor heats a radiant tube or surface
    • F27D2099/0013—The resistor heats a radiant tube or surface immersed in the charge

Definitions

  • the invention relates to a furnace, in particular a melting or holding furnace for metal. the preamble of the main claim.
  • Such furnaces are used in foundries and serve as storage furnaces or as heat-holding ladle furnaces for metal alloys at the casting station. They are loaded with the desired liquid metal alloy from a central premelting station or with the melting material via a loading device. These furnaces are kept at a certain temperature by resistance heating or also by oil or gas burners. It is also known to heat the furnace and thus the metal bath from the ceiling by heating the walls of the furnace vessel or by means of radiant heaters. For direct heating there are also immersion heaters that are inserted through the furnace wall into the interior of the furnace in the liquid metal area. In furnaces with such a heating there is the disadvantage that the immersion heaters are injured by the melting material or by the liquid material introduced. In addition, the side feed-through points have to be sealed against the liquid metal, and if they are arranged horizontally, the heating elements will wear out due to their own weight at high temperatures.
  • the invention is therefore based on the object of creating a furnace, in particular a melting or holding furnace with immersion heaters, in which the wear of the immersion heaters is reduced and the service life of the entire heating arrangement is thus increased.
  • the immersion heaters Due to the fact that the immersion heaters are inserted into the metal bath from above, the lead-through points lie above the liquid level, so that isolation and sealing of the lead-through points does not cause any problems.
  • the vertical position of the immersion heater reduces the wear caused by its own weight at high temperatures.
  • the heat transfer is improved by the exchange of the liquid material.
  • Additional protection for the immersion heater against damage caused by the melting material can be provided by providing protective tubes, e.g. made of ceramic, graphite, clay or coated steel or cast iron pipes.
  • the furnace 1 shown in Fig. 1 is designed as a holding furnace in which metal, e.g. Aluminum that has been melted elsewhere is introduced and the like for the purpose of further use, metering. is kept warm at a certain temperature or possibly further heated.
  • the furnace 1 has a furnace vessel 2 which is largely insulated from the outside, which is lined with ceramic and is covered with a lid 3.
  • the liquid metal bath 4 is filled with the molten metal via a filling opening 5, and the liquid metal is removed at a given time via the removal opening 6.
  • Immersion heaters 7 are guided through the cover 3 and preferably dip vertically into the metal bath 4.
  • the immersion heaters 7 are designed as resistance heaters, but they can also be designed as gas or oil heaters.
  • immersion walls 8 are let into the metal bath 4 from above, which largely cover the immersion heaters 7.
  • the baffles 8 can be attached to the lid 3.
  • the immersion depth of the baffles 7 is dimensioned such that a sufficiently large opening for the flow of the liquid metal remains between its lower edge and the bottom of the furnace vessel 2.
  • FIG. 2 shows an exemplary embodiment of a melting furnace 10, in which the furnace vessel 12 is filled with the melting material 19 via a loading device 11.
  • the immersion heater 17 is in turn passed through the cover 13 and projects vertically into the liquid metal bath 14.
  • the partition wall 18 divides the metal bath 14 into a heating chamber 15 and a melting chamber 16 and covers the immersion heater against the coarse-grained melting material 19 that has been filled in.
  • the liquid metal is removed via a tap valve 20.
  • the metal can also be taken in by scooping or by a pump.
  • the baffles 8, 18 end at a sufficient distance from the bottom of the vessel 2, 12 in order to ensure a sufficient exchange of the liquid metal.
  • This exchange and thus also the heat transfer can also take place via openings in the baffle 8, 18, these openings being arranged locally, for example in the vicinity of the bottom of the container 2, 12, but they can also be located on the entire surface of the partition 8 , 18 may be distributed, these openings then being adapted to the size of the melting material 19, so that the melting material 19 cannot slip through the holes.
  • the immersion heaters 7, 17, can be coated with appropriately designed protective tubes, for example made of ceramic, graphite, clay or similar substances, whereby coated steel or cast iron tubes can also be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

Es wird ein Ofen, insbesondere ein Schmelz- oder Warmhalteofen für Metall vorgeschlagen, der ein das flüssige Metallbad (4) aufnehmendes, wärmeisoliertes Ofengefäß (1) und mindestens einen in das flüssige Metallbad (4) hineinragenden Tauchheizkörper (7) aufweist. In das flüssige Metallbad (4) ist mindestens eine Tauchwand (8) eingeführt, die den den Tauchheizkörper (7) aufnehmenden Bereich von dem übrigen Bereich des Schmelzbades abtrennt. Die Abmessungen der Tauchwand (8) ist derart gewählt, daß ein Austausch des flüssigen Metalls zwischen den Bereichen möglich ist.The invention relates to a furnace, in particular a melting or holding furnace for metal, which has a heat-insulated furnace vessel (1) that receives the liquid metal bath (4) and at least one immersion heater (7) that projects into the liquid metal bath (4). At least one immersion wall (8) is inserted into the liquid metal bath (4) and separates the area receiving the immersion heater (7) from the remaining area of the weld pool. The dimensions of the baffle (8) are chosen so that an exchange of the liquid metal between the areas is possible.

Description

Die Erfindung betrifft einen Ofen, insbesondere einen Schmelz-oder Warmhalteofen für Metall nach . dem Oberbegriff des Hauptanspruchs.The invention relates to a furnace, in particular a melting or holding furnace for metal. the preamble of the main claim.

Derartige Öfen finden in Gießereibetrieben Anwendung und dienen als Speicheröfen oder als Warmhalte-Schöpföfen für Metallegierungen am Gießplatz. Sie werden aus einer zentralen Vorschmelzstation mit der jeweils gewünschten flüssigen Metallegierung oder über ein Beschickungsgerät mit dem Schmelzgut beschickt. Diese Öfen werden durch eine Widerstandsheizung oder auch durch ÖI-oder Gasbrenner auf einer bestimmten Temperatur gehalten. Es ist auch bekannt, den Ofen und damit das Metallbad durch Beheizung der Wände des Ofengefäßes oder mittels Strahlungsheizkörpern von der Decke aus zu beheizen. Für die direkte Beheizung gibt es auch bereits Tauchheizkörper, die im Flüssigmetallbereich durch die Ofenwand in das Ofeninnere eingeführt sind. Bei Öfen mit einer derartigen Beheizung besteht der Nachteil, daß die Tauchheizkörper durch das Schmelzgut oder durch eingebrachtes Flüssigkeitsmaterial verletzt werden. Außerdem müssen die seitlichen Durchführungsstellen gegen das flüssige Metall abgedichtet werden,und bei waagerechter Anordnung tritt ein besonderer Verschleiß der Heizelemente durch ihr eigenes Gewicht bei hohen Temeperaturen auf.Such furnaces are used in foundries and serve as storage furnaces or as heat-holding ladle furnaces for metal alloys at the casting station. They are loaded with the desired liquid metal alloy from a central premelting station or with the melting material via a loading device. These furnaces are kept at a certain temperature by resistance heating or also by oil or gas burners. It is also known to heat the furnace and thus the metal bath from the ceiling by heating the walls of the furnace vessel or by means of radiant heaters. For direct heating there are also immersion heaters that are inserted through the furnace wall into the interior of the furnace in the liquid metal area. In furnaces with such a heating there is the disadvantage that the immersion heaters are injured by the melting material or by the liquid material introduced. In addition, the side feed-through points have to be sealed against the liquid metal, and if they are arranged horizontally, the heating elements will wear out due to their own weight at high temperatures.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Ofen, insbesondere einen Schmelz-oder Warmhalteofen mit Tauchheizkörpern zu - schaffen, bei dem der Verschleiß der Tauchheizkörper verringert wird und somit die Lebensdauer der gesamten Heizanordnung erhöht wird.The invention is therefore based on the object of creating a furnace, in particular a melting or holding furnace with immersion heaters, in which the wear of the immersion heaters is reduced and the service life of the entire heating arrangement is thus increased.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Hauptanspruchs in Verbindung mit den Merkmalen des Oberbegriffs gelöst. Durch Vorsehen von einer oder mehreren Tauchwänden, die den Heizbereich von dem übrigen Bereich des flüssigen Metallbades abtrennen, werden die Heizelemente bzw. Tauchheizkörper gegen Beschädigungen durch das ungeschmolzene oder auch durch das flüssige Material gut geschützt.This object is achieved according to the invention by the characterizing features of the main claim in conjunction with the features of the preamble. By providing one or more baffles which separate the heating area from the rest of the liquid metal bath, the heating elements or immersion heaters are well protected against damage from the unmelted or also from the liquid material.

Durch die in den Unteransprüchen angegebenen Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen möglich. Dadurch, daß die Tauchheizkörper von oben her in das Metallbad eingeführt werden, liegen die Durchführungsstellen oberhalb des Flüssigkeitsspiegels, so daß eine Isolierung und Abdichtung der Durchführungsstellen keine Probleme mit sich bringt. Die senkrechte Stellung der Tauchheizkörper verringert den durch das Eigengewicht bei den hohen Temperaturen hervorgerufenen Verschleiß. Durch Vorsehen von Öffnungen in der Tauchwand wird die Wärmeübertragung durch den Austausch des flüssigen Materials verbessert. Ein zusätzlicher Schutz für die Tauchheizkörper gegen Beschädigungen durch das Schmelzgut kann durch Vorsehen von Schutzrohren, z.B. aus Keramik, Graphit, Ton oder von beschichteten Stahl-oder Gußrohren erreicht werden.Advantageous further developments and improvements are possible through the measures specified in the subclaims. Due to the fact that the immersion heaters are inserted into the metal bath from above, the lead-through points lie above the liquid level, so that isolation and sealing of the lead-through points does not cause any problems. The vertical position of the immersion heater reduces the wear caused by its own weight at high temperatures. By providing openings in the baffle, the heat transfer is improved by the exchange of the liquid material. Additional protection for the immersion heater against damage caused by the melting material can be provided by providing protective tubes, e.g. made of ceramic, graphite, clay or coated steel or cast iron pipes.

Die Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert. Es zeigen:

  • Fig. 1 einen Schnitt durch ein erstes Ausführungsbeispiel des erfindungsgemäßen Ofens in Form eines Warmhalteofens und
  • Fig. 2 einen Schnitt durch ein zweites Ausführungsbeispiel des erfindungsgemäßen Ofens in Form eines Schmelzofens.
The invention is illustrated in the drawing and is explained in more detail in the description below. Show it:
  • Fig. 1 shows a section through a first embodiment of the furnace according to the invention in the form of a holding furnace and
  • Fig. 2 shows a section through a second embodiment of the furnace according to the invention in the form of a melting furnace.

Der in Fig. 1 dargestellte Ofen 1 ist als Warmhalteofen ausgebildet, in den Metall, z.B. Aluminium, das an anderer Stelle geschmolzen worden ist, eingebracht wird und zum Zwecke der Weiterverwendung, Dosierung od.dgl. auf einer bestimmten Temperatur warmgehalten oder gegebenenfalls noch weiter aufgeheizt wird. Der Ofen 1 weist ein nach außen weitgehend wärmeisoliertes Ofengefäß 2 auf, das keramisch ausgekleidet ist und mit einem Deckel 3 abgedeckt ist. Das flüssige Metallbad 4 wird über eine Einfüllöffnung 5 mit dem geschmolzenen Metall aufgefüllt, und über die Entnahmeöffnung 6 wird das flüssige Metall zu gegebener Zeit entnommen. Durch den Deckel 3 hindurchgeführt sind Tauchheizkörper 7, die vorzugsweise senkrecht in das Metallbad 4 hineintauchen. Die Tauchheizkörper 7 sind als Widerstandsheizkörper ausgebildet, sie können aber auch als Gas-oder Ölheizkörper ausgebildet sein. Um die Tauchheizkörper 7 gegen Beschädigungen zu - schützen, insbesondere an den Einfüll-und Entnahmeöffnungen 5 und 6, sind von oben her Tauchwände 8 in das Metallbad 4 eingelassen, die die Tauchheizkörper 7 weitgehend abdecken. Die Tauchwände 8 können an den Deckel 3 befestigt sein. Die Eintauchtiefe der Tauchwände 7 ist so bemessen, daß zwischen ihrer Unterkante und dem Boden des Ofengefäßes 2 eine ausreichend große Öffnung für den Durchfluß des flüssigen Metalls bestehen bleibt.The furnace 1 shown in Fig. 1 is designed as a holding furnace in which metal, e.g. Aluminum that has been melted elsewhere is introduced and the like for the purpose of further use, metering. is kept warm at a certain temperature or possibly further heated. The furnace 1 has a furnace vessel 2 which is largely insulated from the outside, which is lined with ceramic and is covered with a lid 3. The liquid metal bath 4 is filled with the molten metal via a filling opening 5, and the liquid metal is removed at a given time via the removal opening 6. Immersion heaters 7 are guided through the cover 3 and preferably dip vertically into the metal bath 4. The immersion heaters 7 are designed as resistance heaters, but they can also be designed as gas or oil heaters. In order to protect the immersion heaters 7 against damage, in particular at the filling and removal openings 5 and 6, immersion walls 8 are let into the metal bath 4 from above, which largely cover the immersion heaters 7. The baffles 8 can be attached to the lid 3. The immersion depth of the baffles 7 is dimensioned such that a sufficiently large opening for the flow of the liquid metal remains between its lower edge and the bottom of the furnace vessel 2.

In Fig. 2 ist ein Ausführungsbeispiel für einen Schmelzofen 10 dargestellt, bei dem das Ofengefäß 12 über ein Beschickungsgerät 11 mit dem Schmelzgut 19 gefüllt wird. Der Tauchheizkörper 17 ist wiederum durch den Deckel 13 hindurchgeführt und ragt senkrecht in das flüssige Metallbad 14 hinein. Die Trennwand 18 unterteilt das Metallbad 14 in einen Heizraum 15 und einen Schmelzraum 16 und deckt den Tauchheizkörper gegen das eingefüllte grobkörnige Schmelzgut 19 ab. Über ein Abstichventil 20 wird das flüssige Metall entnommen. Das Metall kann auch durch Schöpfen oder durch eine Pumpe augenommen werden. In den dargestellten Ausführungsbeispielen enden die Tauchwände 8, 18 mit genügendem Abstand zum Boden des Gefäßes 2, 12, um einen ausreichenden Austausch des flüssigen Metalls zu gewährleisten. Dieser Austausch und damit auch die Wärmeübertragung kann aber auch über Öffnungen in der Tauchwand 8, 18 erfolgen, wobei diese Öffnungen lokal, beispielsweise in der Nähe des Bodens des Grfäßes 2, 12 angeordnet sein, sie können aber auch auf der gesamten Oberfläche der Trennwand 8, 18 verteilt sein, wobei diese Öffnungen dann an die Größe des Schmelzgutes 19 angepaßt sein sollten, damit das Schmelzgut 19 nicht durch die Löcher hindurchrutschen kann.2 shows an exemplary embodiment of a melting furnace 10, in which the furnace vessel 12 is filled with the melting material 19 via a loading device 11. The immersion heater 17 is in turn passed through the cover 13 and projects vertically into the liquid metal bath 14. The partition wall 18 divides the metal bath 14 into a heating chamber 15 and a melting chamber 16 and covers the immersion heater against the coarse-grained melting material 19 that has been filled in. The liquid metal is removed via a tap valve 20. The metal can also be taken in by scooping or by a pump. In the exemplary embodiments shown, the baffles 8, 18 end at a sufficient distance from the bottom of the vessel 2, 12 in order to ensure a sufficient exchange of the liquid metal. This exchange and thus also the heat transfer can also take place via openings in the baffle 8, 18, these openings being arranged locally, for example in the vicinity of the bottom of the container 2, 12, but they can also be located on the entire surface of the partition 8 , 18 may be distributed, these openings then being adapted to the size of the melting material 19, so that the melting material 19 cannot slip through the holes.

Um die Tauchheizkörper 7, 17 weiterhin zu - schützen, können die Tauchheizkörper mit entsprechend ausgebildeten Schutzrohren, beispielsweise aus Keramik, Graphit, Ton oder ähnlichen Stoffen überzogen werden, wobei auch beschichtete Stahl oder Gußrohre verwendet werden können.In order to further protect the immersion heaters 7, 17, the immersion heaters can be coated with appropriately designed protective tubes, for example made of ceramic, graphite, clay or similar substances, whereby coated steel or cast iron tubes can also be used.

Claims (4)

1. Ofen, insbesondere Schmelz-oder Warmhalteofen für Metall mit einem das flüssige Metallbad aufnehmenden wärmeisolierten Ofengefäß und mindestens einem in das flüssige Metallbad hineinragenden Tauchheizkörper, dadurch gekennzeichnet,daß in das flüssige Metallbad (4,14) mindestens ein Tauchwand (8,18) eingeführt ist, die den Tauchheizkörper (7,17) aufnehmenden Bereich (15) von dem übrigen Bereich (16) des Metallbades (14) abtrennt, wobei die Abmessungen der Tauchwand (8,18) derart gewählt sind, daß ein Austausch des flüssigen Metalls zwischen den Bereichen möglich ist.1. Furnace, in particular melting or holding furnace for metal with a heat-insulated furnace vessel receiving the liquid metal bath and at least one immersion heater protruding into the liquid metal bath, characterized in that at least one immersion wall (8,18) in the liquid metal bath (4,14) is introduced, which separates the immersion heater (7, 17) receiving area (15) from the remaining area (16) of the metal bath (14), the dimensions of the immersion wall (8, 18) being selected such that an exchange of the liquid metal between the areas is possible. 2. Ofen nach Anspruch 1, dadurch gekennzeichnet, daß der Tauchheizkörper (7,17) und die Tauchwand (8,18) von oben her senkrecht in das flüssige Metallbad (4,14) eingeführt sind.2. Oven according to claim 1, characterized in that the immersion heater (7, 17) and the immersion wall (8, 18) are inserted vertically into the liquid metal bath (4, 14) from above. 3. Ofen nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß die Tauchwand(8,18) Öffnungen für den Austausch des flüssigen Metalls aufweist.3. Oven according to claim 1 or claim 2, characterized in that the baffle (8.18) has openings for the exchange of the liquid metal. 4. Ofen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Tauchheizkörper (7,17) mit einem Schutzrohr versehen ist.4. Oven according to one of claims 1 to 3, characterized in that the immersion heater (7, 17) is provided with a protective tube.
EP86730054A 1985-04-04 1986-03-25 Furnace, particularly a metal-smelting or heat-retaining furnace Withdrawn EP0200671A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853512868 DE3512868A1 (en) 1985-04-04 1985-04-04 OVEN, ESPECIALLY MELTING OR WARMING OVEN FOR METAL
DE3512868 1985-04-04

Publications (2)

Publication Number Publication Date
EP0200671A2 true EP0200671A2 (en) 1986-11-05
EP0200671A3 EP0200671A3 (en) 1987-06-10

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EP86730054A Withdrawn EP0200671A3 (en) 1985-04-04 1986-03-25 Furnace, particularly a metal-smelting or heat-retaining furnace

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DE (1) DE3512868A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647886A1 (en) * 1989-06-06 1990-12-07 Jafs Export Oy Holimesy Ab FOUNDRY OVEN
GB2232751A (en) * 1989-06-06 1990-12-19 Christopher J English Apparatus and method for treating molten material
WO1995013402A1 (en) * 1993-11-12 1995-05-18 Pechiney Rhenalu Compact molten metal processing ladle
DE4039801C2 (en) * 1990-01-25 2000-03-16 Abb Kk Influencing the exhaust gas flow in a melting furnace
CN105466215A (en) * 2015-12-25 2016-04-06 重庆唐森机械制造有限公司 Heating furnace for production of energy-saving pan

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650380A1 (en) * 1989-07-28 1991-02-01 Air Liquide METHOD FOR HEATING A METAL BATH
US5948352A (en) * 1996-12-05 1999-09-07 General Motors Corporation Two-chamber furnace for countergravity casting

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE645671C (en) * 1934-04-17 1937-06-01 Siegfried Junghans Electric furnace for melting metals
FR870310A (en) * 1940-03-01 1942-03-09 Licentia Gmbh Electric furnace with fusible salt bath, with electrodes
US3996412A (en) * 1975-01-17 1976-12-07 Frank W. Schaefer, Inc. Aluminum melting furnace
GB1561786A (en) * 1976-12-09 1980-03-05 Ass Eng Ltd Heating vessles for molten metal
FR2480419A1 (en) * 1980-04-09 1981-10-16 Mgr Sa Fours INSTALLATION AND METHOD FOR MELTING OR MAINTAINING A METAL MATERIAL BY IMMERSION RESISTANT ELEMENT IN METAL

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647886A1 (en) * 1989-06-06 1990-12-07 Jafs Export Oy Holimesy Ab FOUNDRY OVEN
GB2232752A (en) * 1989-06-06 1990-12-19 Jafs Export Oy Holimesy Ab Metalmelting furnace
GB2232751A (en) * 1989-06-06 1990-12-19 Christopher J English Apparatus and method for treating molten material
US5164146A (en) * 1989-06-06 1992-11-17 Ab Jafs Export Oy Holimesy Foundry furnace having outlet flow passage
GB2232752B (en) * 1989-06-06 1993-05-12 Jafs Export Oy Holimesy Ab Foundry furnace
DE4039801C2 (en) * 1990-01-25 2000-03-16 Abb Kk Influencing the exhaust gas flow in a melting furnace
WO1995013402A1 (en) * 1993-11-12 1995-05-18 Pechiney Rhenalu Compact molten metal processing ladle
FR2712217A1 (en) * 1993-11-12 1995-05-19 Pechiney Rhenalu Pocket for processing liquid metal with a small footprint and improved performance.
US5494265A (en) * 1993-11-12 1996-02-27 Pechiney Rhenalu Ladle for processing molten metal with minimal space requirements and improved performance
CN105466215A (en) * 2015-12-25 2016-04-06 重庆唐森机械制造有限公司 Heating furnace for production of energy-saving pan
CN105466215B (en) * 2015-12-25 2017-08-11 重庆唐森机械制造有限公司 A kind of energy saving pot production heating furnace

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Publication number Publication date
DE3512868A1 (en) 1986-10-09
EP0200671A3 (en) 1987-06-10

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