EP1607156A1 - Casting method and installation for casting aluminium or aluminium alloys - Google Patents

Casting method and installation for casting aluminium or aluminium alloys Download PDF

Info

Publication number
EP1607156A1
EP1607156A1 EP04405366A EP04405366A EP1607156A1 EP 1607156 A1 EP1607156 A1 EP 1607156A1 EP 04405366 A EP04405366 A EP 04405366A EP 04405366 A EP04405366 A EP 04405366A EP 1607156 A1 EP1607156 A1 EP 1607156A1
Authority
EP
European Patent Office
Prior art keywords
casting
pans
melt
station
aluminum
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.)
Granted
Application number
EP04405366A
Other languages
German (de)
French (fr)
Other versions
EP1607156B1 (en
Inventor
Dirk Kotze
Dawid Dewet-Smith
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.)
Stopinc AG
Original Assignee
Stopinc AG
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
Priority to EP04405366A priority Critical patent/EP1607156B1/en
Application filed by Stopinc AG filed Critical Stopinc AG
Priority to AT04405366T priority patent/ATE421398T1/en
Priority to DE502004008913T priority patent/DE502004008913D1/en
Priority to AU2005254220A priority patent/AU2005254220A1/en
Priority to RU2007101384/02A priority patent/RU2007101384A/en
Priority to MXPA06014600A priority patent/MXPA06014600A/en
Priority to CNA2005800198473A priority patent/CN1976773A/en
Priority to CA002570361A priority patent/CA2570361A1/en
Priority to JP2007515884A priority patent/JP2008502483A/en
Priority to US11/629,712 priority patent/US20080164000A1/en
Priority to PCT/EP2005/006486 priority patent/WO2005123304A2/en
Publication of EP1607156A1 publication Critical patent/EP1607156A1/en
Priority to ZA200609947A priority patent/ZA200609947B/en
Application granted granted Critical
Publication of EP1607156B1 publication Critical patent/EP1607156B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants

Definitions

  • the invention relates to a casting method for aluminum or aluminum alloys according to the preamble of claim 1 and a Casting plant for carrying out the process.
  • the individual treatment stations must be perfectly coordinated. If one of the stages of this in-line system does not work, the entire casting plant must be shut down.
  • the long channel that flows through the melt means a loss of temperature, so that the material in the heat holding furnace must be overheated, so that at the casting station a sufficient temperature can be achieved when starting. Extensive casting times mean that the melting and holding furnace must be available for the entire casting time before the next melting rate is used. The energy consumption of the stove is correspondingly large.
  • flue furnaces reverberatory furnaces
  • hydrocarbon hydrocarbon are used as fuel, which causes the disadvantage of rapid absorption of hydrogen from the burner flame.
  • greenhouse gases and other pollutants polluting the atmosphere are produced.
  • the long, open channel for the flow through the melt also means that the metal absorbs the hydrogen from the atmosphere and causes the formation of slag.
  • the present invention is based on the object, a more economical and more flexible casting process for aluminum or aluminum alloys to propose and a casting plant for performing the To create a procedure that ensures an optimal timing for the treatment and allow the casting of the molten aluminum and with which an improved quality of the semi-products to be produced can be achieved can.
  • pans for the treatment and feeding alumina melt in controllable sequences to preferably several Giessstationen this process phase of the actual Casting time decoupled.
  • the individual treatments are not More fix and timed, but you can as needed be adjusted until the desired quality of the to be spilled Melt in the respective pan is achieved.
  • the inventive method is much more efficient than the in-line method, since the need for large heat holding furnace is eliminated. If anything, the furnace will melt and heat up used, but not for keeping warm over long periods of time. These can be used as an energetically efficient and ecologically beneficial induction furnace be educated.
  • FIG. 1 shows a prior art casting installation 1 for Aluminum or aluminum alloys.
  • the starting material is liquid or solid aluminum is introduced into a first stage or station 2, a melting furnace 3 and connected to this heat holding furnace 4 includes.
  • the aluminum from a filling space by means of a transport pan 5 or delivered as a scrap load become.
  • Furnaces 3, 4 are usually large flame ovens with hydrocarbon as fuel.
  • the generated in the furnace 3 Melt is in the heat holding furnace 4 to the necessary temperature heated and partially homogenized by stirring.
  • the aluminum melt After the aluminum melt reaches the required temperature has, it is from the heat holding furnace 4 via a long channel 6 (channel) directed to a casting station 7, where they have different treatment stations 11, 12 flows through, which together with one of the casting station 7 upstream Filter 13 a second stage 10 of the casting plant 1 in general form known as gutter treatment.
  • a second stage 10 of the casting plant 1 in general form known as gutter treatment.
  • the treatment station 11 In the treatment station 11 are the Alauschmelze added various alloying additions.
  • the treatment station 12 takes place a gas cleaning.
  • the casting station 7, in which the molten aluminum poured into semi-finished products can, in a known and therefore unspecified described Be operated continuously or semi-continuously.
  • the treatment times in trough level 10 are at those in the casting station 7 to be performed casting process bound and thus predetermined and limited.
  • the individual treatment stations 11, 12, 13 must be in their function perfectly matched in time. Works one of the stages of this in-line system does not, so the whole casting machine needs 1 out of service.
  • the long channel or channel 6, through the The melt flows, means a loss of temperature, leaving the material in the heat holding furnace 4 must be overheated (for example, to 730 ° C), so that at the casting station 7 a sufficient temperature when starting (e.g., 700 ° C) can be achieved.
  • Extensive casting times mean that the melting and heat holding furnace 4 for the entire casting time available must stand before next melting rate is used. Of the Energy consumption of the furnace 3, 4 is correspondingly large.
  • the flame furnace with hydrocarbon as fuel produces the Disadvantage of a rapid absorption of hydrogen from the burner flame.
  • greenhouse gases and other pollutants are created Impurities.
  • the long, open channel 6 (channel) for the flow But the Alauschmelze also means that the metal is the hydrogen from the atmosphere and causes the formation of slag.
  • Fig. 2 is an inventive casting plant 1 for aluminum or Aluminum alloys shown schematically.
  • the first stage of the inventive Casting takes place in a filling station 21, in which hot aluminum melt is filled into a number of pans 25.
  • the pans For example, they can have a capacity of 15 t. It can be either liquid, hot (temperature about 900 ° C) aluminum a filling space filled by means of transport pans directly into the pans 25 be, or it is at least one, preferably a plurality of furnace 22, 23, 24 associated with the filling station 21 and for the delivery of the aluminum melt responsible, in addition to liquid aluminum and aluminum scrap or intended for remelting blocks serve as a starting material can.
  • the melt can e.g.
  • furnace 22 can preferably be used electric induction furnace which are much more energy efficient than flame ovens. It may be, for example, induction furnace with a capacity of 20 tons, from each of which the 15 tons aluminum melt filled in one of the pans 25 and the remaining 5t at Melting of another charge are helpful.
  • the inventive casting plant 1 has a cleaning and Preparation station 30, from which cleaned and pre-heated pans 25a are transported to the filling station 21 for filling (located on a Pans 25 are in Fig. 2 generally with the letter T).
  • a cleaning and Preparation station 30 from which cleaned and pre-heated pans 25a are transported to the filling station 21 for filling (located on a Pans 25 are in Fig. 2 generally with the letter T).
  • preheating the pans 25a on For example, 900 ° C can from the with a temperature of approx. 800 ° C operated furnace 22, 23, 24 filled Alauschmelze longer in the Pans 25 remain until they reach the typical pouring temperature of 700 ° C drops, as it would be without preheating the case.
  • the pans 25 filled in the filling station 21 become a treatment station 32, in which the second stage of the casting process runs.
  • alloying additives are added to the aluminum melt (see pans indicated at 25b in Fig. 2).
  • Pans 25a are introduced before filling the melt.
  • the aluminum melt is homogenized and cleaned (see pans 25c).
  • the pans below one in the respective Pan 25c submersible impeller for blowing one Inert gas, e.g. Argon or nitrogen, placed one combined Hydrogen removal, homogenization and / or thermal regulation of Aluminum melt can be done.
  • the blowing in of argon the absorption becomes of hydrogen from the moisture present in the atmosphere eliminates and reduces slagging.
  • To eliminate Alkaline trace impurities may also contain small amounts of Chlorine be added to the cleaning gas.
  • the pans can be placed in 25 provided storage stations (in Fig. 2 are generally such storage stations with the letter S) are held until a Casting station 33 or 34 is available.
  • the casting plant 20 preferably has over several such casting stations (two shown in FIG. 2), to which the pans 25 are transported from the treatment or storage station can be, and in which the melt to semi-products is shed.
  • Pans 25 are covered with a lid.
  • the temperature in the Pan 25 by blowing argon through a porous stopper in the Lowered through the bottom of the pan or by means of a in the pan lid built-in, small burner maintained or increased.
  • the emptying of the pans 25d at the respective casting station 33, 34 takes place through the bottom of the pan under the controllable opening of a sliding closure, wherein the effluent Alauschmelze in a collecting channel is preferably conducted under sheath by an inert gas. Also during this phase may be due to the porous plug in the pan bottom Are blown argon, whereby the melt is stirred and purified becomes.
  • By covering the pan 25d can inert in its upper region Atmosphere to be created, which reduces the oxidation and absorption of Lowers hydrogen.
  • the casting stations 33, 34 are each in a manner known per se equipped with a filter system and are continuous or semi-continuous operated.
  • pans 25d After emptying the pans 25d they become the already mentioned Cleaning and preparation station 30 transported and in this cleaned (see pan 25e) and prepared for reuse, in particular preheated (see pan 25a). The empty pans can also until reuse in designated storage stations S be kept.
  • the Pans 25 are transported on rails or by means of overhead cranes can.
  • the casting plant according to the invention is equipped with a control system, with which the individual oven 22, 23, 24 in the individual pans 25th to be filled batches, the alloying additions, heating, cooling, gas supply and treatment times are controlled so that the aluminum melt in desired quality, with desired temperature and fully homogenized to the casting stations 33, 34 passes.
  • pans 25 for the treatment and feeding of Alauschmelze in controllable sequences to preferably several Giessstationen 33, 34, this process phase is decoupled from the actual casting process in time.
  • the individual treatments are no longer fix fixed and limited in time, but they can be adjusted as needed until the desired quality of the molten aluminum to be poured in the pan is achieved. If, for example, a low hydrogen content is required, the gas purification time ( degassing ) can be extended. This possibility did not exist in the traditional in-line method of FIG.
  • the production capacity of the casting plant depends on the actual casting process at the casting stations alone, which can be continued until the feeding of the treated aluminum melt to the casting stations is interrupted in the desired manner.
  • the inventive method is much more efficient than the in-line method, since the need for large heat holding furnace is eliminated. If anything, the furnace will melt and heat up used, but not for keeping warm over long periods of time. These can be used as an energetically efficient and ecologically beneficial induction furnace be educated. By preheating the pans can in the Ovens attainable melt temperature to a lower value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

Al and Al alloy casting process in which the Al melt is added to at least one casting station (33, 34) where the melt is cast to a semifinished product. In adding the Al melt to the casting station a number of ladles (25) are used, into which the melt is filled, transported and treated in a further step (32) and finally fed to casting stations 33 or 34 with removal of the ladles. An independent claim is included for a casting unit as described above.

Description

Die Erfindung betrifft ein Giessverfahren für Aluminium bzw. Aluminiumlegierungen gemäss dem Oberbegriff des Anspruches 1 sowie eine Giessanlage zum Durchführen des Verfahrens.The invention relates to a casting method for aluminum or aluminum alloys according to the preamble of claim 1 and a Casting plant for carrying out the process.

Es sind Giessverfahren sowie Giessanlagen für Aluminium bzw. Aluminiumlegierungen bekannt, bei denen festes oder flüssiges Aluminium in einem Schmelzofen geschmolzen und anschliessend in einem Wärmehalteofen gehalten wird, aus welchem die Schmelze über eine lange Rinne zu einer Giesstation fliesst und dabei unterschiedlicher Behandlung ausgesetzt wird. So werden der die Rinne durchfliessenden Schmelze Legierungszusätze zugegeben und ein inertes Reinigungsgas (Argon) eingeblasen, bevor die Schmelze über einen Filter zu der Giesstation gelangt, in der sie zu Halbprodukten vergossen wird (vgl. Fig. 1, in der eine herkömmliche Giessanlage für Aluminium schematisch dargestellt ist). Eine Homogenisierung der Schmelze ist nur begrenzt möglich. Die Behandlungszeiten sind an den Giessprozess gebunden und somit vorbestimmt und zeitlich begrenzt.There are casting processes and casting plants for aluminum or aluminum alloys known in which solid or liquid aluminum in one Melting furnace melted and then in a heat holding furnace held, from which the melt over a long groove to a pouring station flows and thereby exposed to different treatment becomes. Thus, the melt flowing through the channel become alloying additives added and an inert cleaning gas (argon) injected, before the melt passes through a filter to the pouring station, in it is shed into semi-finished products (see Fig. 1, in which a conventional Casting system for aluminum is shown schematically). A Homogenization of the melt is limited. The treatment times are bound to the casting process and thus predetermined and limited in time.

Die einzelnen Behandlungsstationen müssen perfekt aufeinander abgestimmt sein. Funktioniert eine der Stufen dieser In-line-Anlage nicht, so muss die ganze Giessanlage ausser Betrieb gesetzt werden. Die lange Rinne, die die Schmelze durchfliesst, bedeutet einen Temperaturverlust, so dass das Material in dem Wärmehalteofen überhitzt werden muss, damit an der Giessstation eine genügende Temperatur beim Anfahren erreicht werden kann. Extensive Giesszeiten bedeuten, dass der Schmelz- und Wärmehalteofen für die ganze Giesszeit zur Verfügung stehen muss, bevor nächste Schmelzrate zum Einsatz kommt. Der Energieverbrauch der Ofen ist entsprechend gross. Es werden in der Regel Flammenofen (reverberatory furnaces) mit Kohlenwasserstoff als Brennstoff verwendet, wodurch der Nachteil einer rapiden Absorption von Wasserstoff aus der Brennerflamme entsteht. Zudem entstehen Treibhausgase und andere die Atmosphäre belastende Verunreinigungen. Die lange, offene Rinne für den Durchfluss der Schmelze bedeutet aber auch, dass das Metall den Wasserstoff von der Atmosphäre aufnimmt und die Bildung von Schlacke verursacht.The individual treatment stations must be perfectly coordinated. If one of the stages of this in-line system does not work, the entire casting plant must be shut down. The long channel that flows through the melt means a loss of temperature, so that the material in the heat holding furnace must be overheated, so that at the casting station a sufficient temperature can be achieved when starting. Extensive casting times mean that the melting and holding furnace must be available for the entire casting time before the next melting rate is used. The energy consumption of the stove is correspondingly large. As a rule, flue furnaces ( reverberatory furnaces ) with hydrocarbon are used as fuel, which causes the disadvantage of rapid absorption of hydrogen from the burner flame. In addition, greenhouse gases and other pollutants polluting the atmosphere are produced. However, the long, open channel for the flow through the melt also means that the metal absorbs the hydrogen from the atmosphere and causes the formation of slag.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein wirtschaftlicheres und flexibleres Giessverfahren für Aluminium bzw. Aluminiumlegierungen vorzuschlagen sowie eine Giessanlage zum Durchführen des Verfahrens zu schaffen, die einen optimalen Zeitablauf für das Behandeln und das Vergiessen der Aluminiumschmelze ermöglichen und mit denen eine verbesserte Qualität der zu erzeugenden Halbprodukte erreicht werden kann.The present invention is based on the object, a more economical and more flexible casting process for aluminum or aluminum alloys to propose and a casting plant for performing the To create a procedure that ensures an optimal timing for the treatment and allow the casting of the molten aluminum and with which an improved quality of the semi-products to be produced can be achieved can.

Diese Aufgabe wird erfindungsgemäss durch ein Giessverfahren mit den Merkmalen des Anspruches 1 sowie durch eine Giessanlage mit den Merkmalen des Anspruches 13 gelöst.This object is achieved according to the invention by a casting process with the Characteristics of claim 1 and by a casting plant with the Characteristics of claim 13 solved.

Bevorzugte Weitergestaltungen des erfindungsgemässen Giessverfahrens sowie der erfindungsgemässen Giessanlage bilden den Gegenstand der abhängigen Ansprüche.Preferred refinements of the casting method according to the invention as well as the casting plant according to the invention form the subject of the dependent Claims.

Durch die erfindungsgemässe Verwendung von Pfannen für das Behandeln und Zuführen von Aluschmelze in steuerbaren Sequenzen zu vorzugsweise mehreren Giessstationen wird diese Verfahrensphase von dem eigentlichen Giessvorgang zeitlich abgekoppelt. Die einzelnen Behandlungen sind nicht mehr fix festgelegt und zeitlich begrenzt, sondern sie können nach Bedarf angepasst werden, bis die gewünschte Qualität der zu vergiessenden Schmelze in der jeweiligen Pfanne erreicht wird.By the inventive use of pans for the treatment and feeding alumina melt in controllable sequences to preferably several Giessstationen this process phase of the actual Casting time decoupled. The individual treatments are not More fix and timed, but you can as needed be adjusted until the desired quality of the to be spilled Melt in the respective pan is achieved.

Das erfindungsgemässe Verfahren ist wesentlich effizienter als das In-line-Verfahren, da die Notwendigkeit von grossen Wärmehalteofen entfällt. Wenn überhaupt, werden die Ofen zum Schmelzen und Aufheizen gebraucht, jedoch nicht zum Wärmehalten über längere Zeitabschnitte. Diese können als energetisch effiziente und ökologisch vorteilhafte Induktionsofen ausgebildet sein. The inventive method is much more efficient than the in-line method, since the need for large heat holding furnace is eliminated. If anything, the furnace will melt and heat up used, but not for keeping warm over long periods of time. These can be used as an energetically efficient and ecologically beneficial induction furnace be educated.

Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
schematisch ein Ausführungsbeispiel einer dem Stand der Technik entsprechenden Giessanlage für Aluminium; und
Fig. 2
schematisch ein Ausführungsbeispiel einer erfindungsgemässen Giessanlage für Aluminium.
The invention will be explained in more detail with reference to the drawing. Show it:
Fig. 1
schematically an embodiment of a prior art casting plant for aluminum; and
Fig. 2
schematically an embodiment of an inventive casting plant for aluminum.

Fig.1 zeigt eine dem Stand der Technik entsprechende Giessanlage 1 für Aluminium bzw. Aluminiumlegierungen. Als Ausgangsmaterial wird flüssiges oder festes Aluminium in eine erste Stufe bzw. Station 2 eingebracht, die einen Schmelzofen 3 sowie einen an diesen angeschlossenen Wärmehalteofen 4 umfasst. Beispielsweise kann das Aluminium aus einem Füllraum mittels einer Transportpfanne 5 oder als eine Schrottladung geliefert werden. Bei den Ofen 3, 4 handelt es sich in der Regel um grosse Flammenofen mit Kohlenwasserstoff als Brennstoff. Die im Schmelzofen 3 erzeugte Schmelze wird im Wärmehalteofen 4 auf die notwendige Temperatur erhitzt und teilweise durch Rühren homogenisiert.1 shows a prior art casting installation 1 for Aluminum or aluminum alloys. The starting material is liquid or solid aluminum is introduced into a first stage or station 2, a melting furnace 3 and connected to this heat holding furnace 4 includes. For example, the aluminum from a filling space by means of a transport pan 5 or delivered as a scrap load become. Furnaces 3, 4 are usually large flame ovens with hydrocarbon as fuel. The generated in the furnace 3 Melt is in the heat holding furnace 4 to the necessary temperature heated and partially homogenized by stirring.

Nachdem die Aluminiumschmelze die erforderliche Temperatur erreicht hat, wird sie aus dem Wärmehalteofen 4 über eine lange Rinne 6 (Kanal) zu einer Giessstation 7 geleitet, wobei sie verschiedene Behandlungsstationen 11, 12 durchfliesst, die zusammen mit einem der Giessstation 7 vorgeschalteten Filter 13 eine zweite Stufe 10 der Giessanlage 1 allgemein bekannt als Rinnenbehandlung bilden. In der Behandlungsstation 11 werden der Aluschmelze diverse Legierungszusätze zugefügt. In der Behandlungsstation 12 findet eine Gasreinigung statt. After the aluminum melt reaches the required temperature has, it is from the heat holding furnace 4 via a long channel 6 (channel) directed to a casting station 7, where they have different treatment stations 11, 12 flows through, which together with one of the casting station 7 upstream Filter 13 a second stage 10 of the casting plant 1 in general form known as gutter treatment. In the treatment station 11 are the Alauschmelze added various alloying additions. In the treatment station 12 takes place a gas cleaning.

Die Giessstation 7, in der die Aluminiumschmelze zu Halbprodukten vergossen wird, kann in einer an sich bekannten und daher nicht näher beschriebenen Weise kontinuierlich oder halbkontinuierlich betrieben werden.The casting station 7, in which the molten aluminum poured into semi-finished products can, in a known and therefore unspecified described Be operated continuously or semi-continuously.

Die Behandlungszeiten in der Rinnen-Stufe 10 sind an den in der Giessstation 7 durchzuführenden Giessprozess gebunden und somit vorbestimmt und begrenzt. Die einzelnen Behandlungsstationen 11, 12, 13 müssen in ihrer Funktion zeitlich perfekt aufeinander abgestimmt sein. Funktioniert eine der Stufen dieser In-line-Anlage nicht, so muss die ganze Giessanlage 1 ausser Betrieb gesetzt werden. Der lange Kanal bzw. Rinne 6, durch die die Schmelze fliesst, bedeutet einen Temperaturverlust, so dass das Material in dem Wärmehalteofen 4 überhitzt werden muss (z.B. auf 730°C), damit an der Giessstation 7 eine genügende Temperatur beim Anfahren (z.B. 700°C) erreicht werden kann. Extensive Giesszeiten bedeuten, dass der Schmelz- und Wärmehalteofen 4 für die ganze Giesszeit zur Verfügung stehen muss, bevor nächste Schmelzrate zum Einsatz kommt. Der Energieverbrauch der Ofen 3, 4 ist entsprechend gross.The treatment times in trough level 10 are at those in the casting station 7 to be performed casting process bound and thus predetermined and limited. The individual treatment stations 11, 12, 13 must be in their function perfectly matched in time. Works one of the stages of this in-line system does not, so the whole casting machine needs 1 out of service. The long channel or channel 6, through the The melt flows, means a loss of temperature, leaving the material in the heat holding furnace 4 must be overheated (for example, to 730 ° C), so that at the casting station 7 a sufficient temperature when starting (e.g., 700 ° C) can be achieved. Extensive casting times mean that the melting and heat holding furnace 4 for the entire casting time available must stand before next melting rate is used. Of the Energy consumption of the furnace 3, 4 is correspondingly large.

Bei den Flammenofen mit Kohlenwasserstoff als Brennstoff entsteht der Nachteil einer rapiden Absorption von Wasserstoff aus der Brennerflamme. Zudem entstehen Treibhausgase und andere die Atmosphäre belastende Verunreinigungen. Die lange, offene Rinne 6 (Kanal) für den Durchfluss der Aluschmelze bedeutet aber auch, dass das Metall den Wasserstoff von der Atmosphäre aufnimmt und die Bildung von Schlacke verursacht.The flame furnace with hydrocarbon as fuel produces the Disadvantage of a rapid absorption of hydrogen from the burner flame. In addition, greenhouse gases and other pollutants are created Impurities. The long, open channel 6 (channel) for the flow But the Alauschmelze also means that the metal is the hydrogen from the atmosphere and causes the formation of slag.

In Fig. 2 ist eine erfindungsgemässe Giessanlage 1 für Aluminium bzw. Aluminiumlegierungen schematisch dargestellt. Die erste Stufe des erfindungsgemässen Giessverfahrens erfolgt in einer Füllstation 21, in welcher heisse Aluschmelze in eine Anzahl von Pfannen 25 gefüllt wird. Die Pfannen können beispielsweise ein Fassungsvermögen von 15 t aufweisen. Es kann entweder flüssiges, heisses (Temperatur ca. 900°C) Aluminium aus einem Füllraum mittels Transportpfannen direkt in die Pfannen 25 eingefüllt werden, oder es ist mindestens ein, vorzugsweise mehrere Ofen 22, 23, 24 der Füllstation 21 zugeordnet und für die Lieferung der Aluschmelze zuständig, wobei neben flüssigem Aluminium auch Aluminiumschrott oder zum Umschmelzen vorgesehene Blöcke als Ausgangsmaterial dienen können. Die Schmelze kann z.B. in halbstündigen Intervallen jeweils in eine der Pfannen 25 eingefüllt werden. Mit Vorteil kann aus den einzelnen Öfen Aluschmelze unterschiedlicher Qualität (mit unterschiedlichem Aluminium-Reinheitsgrad) in die Pfannen 25 eingefüllt werden, wobei das Füllen der Pfannen 25 mit Aluschmelze allenfalls auch mit gemischtem Material aus verschiedenen Ofen 22, 23, 24 computergesteuert verlaufen kann.In Fig. 2 is an inventive casting plant 1 for aluminum or Aluminum alloys shown schematically. The first stage of the inventive Casting takes place in a filling station 21, in which hot aluminum melt is filled into a number of pans 25. The pans For example, they can have a capacity of 15 t. It can be either liquid, hot (temperature about 900 ° C) aluminum a filling space filled by means of transport pans directly into the pans 25 be, or it is at least one, preferably a plurality of furnace 22, 23, 24 associated with the filling station 21 and for the delivery of the aluminum melt responsible, in addition to liquid aluminum and aluminum scrap or intended for remelting blocks serve as a starting material can. The melt can e.g. at half-hourly intervals in each case in one of the pans 25 are filled. With advantage can from the individual Furnaces Aluminum melt of different quality (with different aluminum purity) be filled in the pans 25, the Filling the pans 25 with aluminum melt possibly also with mixed Material from various oven 22, 23, 24 computer-controlled run can.

Als Ofen 22, 23, 24 können vorzugsweise elektrische Induktionsofen eingesetzt werden, die energetisch wesentlich effizienter sind als Flammenofen. Es kann sich dabei beispielsweise um Induktionsofen mit einem Fassungsvermögen von 20 t handeln, aus denen jeweils die 15 t Aluminiumschmelze in eine der Pfannen 25 gefüllt und die restlichen 5t beim Schmelzen einer weiteren Ladung behilflich sind.As furnace 22, 23, 24 can preferably be used electric induction furnace which are much more energy efficient than flame ovens. It may be, for example, induction furnace with a capacity of 20 tons, from each of which the 15 tons aluminum melt filled in one of the pans 25 and the remaining 5t at Melting of another charge are helpful.

Die erfindungsgemässe Giessanlage 1 verfügt über eine Reinigungs- und Vorbereitungsstation 30, aus welcher gereinigte und vorerhitzte Pfannen 25a zum Einfüllen zu der Füllstation 21 transportiert werden (sich auf einer Transportstrecke befindenden Pfannen 25 sind in Fig. 2 generell mit dem Buchstaben T bezeichnet). Durch die Vorheizung der Pfannen 25a auf beispielsweise 900°C kann die aus den mit einer Temperatur von ca. 800°C betriebenen Ofen 22, 23, 24 eingefüllte Aluschmelze länger in den Pfannen 25 verbleiben, bis sie auf die typische Giesstemperatur von 700°C absinkt, als es ohne Vorheizung der Fall wäre.The inventive casting plant 1 has a cleaning and Preparation station 30, from which cleaned and pre-heated pans 25a are transported to the filling station 21 for filling (located on a Pans 25 are in Fig. 2 generally with the letter T). By preheating the pans 25a on For example, 900 ° C can from the with a temperature of approx. 800 ° C operated furnace 22, 23, 24 filled Alauschmelze longer in the Pans 25 remain until they reach the typical pouring temperature of 700 ° C drops, as it would be without preheating the case.

Nach dem Einfüllen der jeweilige Pfanne 25 wird von der Schmelzbadoberfläche die Schlacke abgeschöpft, indem die Pfanne 25 in eine Schrägstellung gebracht wird.After filling the respective pan 25 is from the melt surface the slag is skimmed off by placing the pan 25 in an inclined position is brought.

Die in der Füllstation 21 gefüllten Pfannen 25 werden zu einer Behandlungsstation 32 transportiert, in welcher die zweite Stufe des Giessverfahrens verläuft. Dabei werden zuerst Legierungszusätze in die Aluschmelze eingebracht (vgl. die mit 25b bezeichnete Pfannen in Fig. 2). (Allerdings kann auch zumindest ein Teil der Legierungszusätze bereits in die gereinigten Pfannen 25a vor dem Einfüllen der Schmelze eingebracht werden.) Danach wird die Aluschmelze homogenisiert und gereinigt (vgl. Pfannen 25c). Zu diesem Zweck werden die Pfannen unterhalb eines in die jeweilige Pfanne 25c eintauchbaren Gebläserades zum Einblasen von einem Inertgas, z.B. Argon oder Stickstoff, platziert , wobei eine kombinierte Wasserstoffentfernung, Homogenisierung und/oder Wärmeregulierung der Aluschmelze erfolgen kann. Mit dem Einblasen von Argon wird die Absorption von Wasserstoff von der in der Atmosphäre vorhandenen Feuchtigkeit eliminiert und die Schlackenbildung reduziert. Zur Beseitigung von alkalischen Spurverunreinigungen können zusätzlich kleine Mengen von Chlorin dem Reinigungsgas beigemischt werden.The pans 25 filled in the filling station 21 become a treatment station 32, in which the second stage of the casting process runs. First, alloying additives are added to the aluminum melt (see pans indicated at 25b in Fig. 2). (Indeed At least some of the alloying additives can already be purified Pans 25a are introduced before filling the melt.) Thereafter, the aluminum melt is homogenized and cleaned (see pans 25c). For this purpose, the pans below one in the respective Pan 25c submersible impeller for blowing one Inert gas, e.g. Argon or nitrogen, placed one combined Hydrogen removal, homogenization and / or thermal regulation of Aluminum melt can be done. With the blowing in of argon the absorption becomes of hydrogen from the moisture present in the atmosphere eliminates and reduces slagging. To eliminate Alkaline trace impurities may also contain small amounts of Chlorine be added to the cleaning gas.

Nach der Behandlung der Aluminiumschmelze können die Pfannen 25 in dafür vorgesehenen Lagerstationen (in Fig. 2 sind generell solche Lagerstationen mit dem Buchstaben S bezeichnet) gehalten werden, bis eine Giessstation 33 bzw. 34 verfügbar ist. Die Giessanlage 20 verfügt vorzugsweise über mehrere solche Giessstationen (in Fig. 2 zwei dargestellt), zu welchen die Pfannen 25 von der Behandlungs- oder Lagerstation transportiert werden können, und in welchen die Schmelze zu Halbprodukten vergossen wird.After treating the molten aluminum, the pans can be placed in 25 provided storage stations (in Fig. 2 are generally such storage stations with the letter S) are held until a Casting station 33 or 34 is available. The casting plant 20 preferably has over several such casting stations (two shown in FIG. 2), to which the pans 25 are transported from the treatment or storage station can be, and in which the melt to semi-products is shed.

Zum Aufrechterhalten der Aluschmelze-Temperatur können mit Vorteil die Pfannen 25 mit einem Deckel abgedeckt werden.To maintain the Alauschmelze temperature can with advantage the Pans 25 are covered with a lid.

Während des Verweilens in der Lagerstation S kann die Temperatur in der Pfanne 25 durch Einblasen von Argon durch einen porösen Stöpsel im Pfannenboden hindurch herabgesetzt oder mittels eines in den Pfannendeckel eingebauten, kleinen Brenners aufrechterhalten oder erhöht werden.During the stay in the storage station S, the temperature in the Pan 25 by blowing argon through a porous stopper in the Lowered through the bottom of the pan or by means of a in the pan lid built-in, small burner maintained or increased.

Die Entleerung der Pfannen 25d an der jeweiligen Giessstation 33, 34 erfolgt durch den Pfannenboden unter steuerbarer Öffnung eines Schiebeverschlusses, wobei die ausfliessende Aluschmelze in einen Sammelkanal vorzugsweise unter Ummantelung durch ein Inertgas geleitet wird. Auch während dieser Phase kann durch den porösen Stöpsel im Pfannenboden Argon eingeblasen werden, wodurch die Schmelze gerührt und gereinigt wird. Durch Abdecken der Pfanne 25d kann in ihrem oberen Bereich inerte Atmosphäre geschaffen werden, die die Oxidation und Absorption von Wasserstoff herabsetzt.The emptying of the pans 25d at the respective casting station 33, 34 takes place through the bottom of the pan under the controllable opening of a sliding closure, wherein the effluent Alauschmelze in a collecting channel is preferably conducted under sheath by an inert gas. Also during this phase may be due to the porous plug in the pan bottom Are blown argon, whereby the melt is stirred and purified becomes. By covering the pan 25d can inert in its upper region Atmosphere to be created, which reduces the oxidation and absorption of Lowers hydrogen.

Die Giessstationen 33, 34 sind jeweils in einer an sich bekannten Weise mit einem Filtersystem ausgerüstet und werden kontinuierlich oder halbkontinuierlich betrieben.The casting stations 33, 34 are each in a manner known per se equipped with a filter system and are continuous or semi-continuous operated.

Nach dem Entleeren der Pfannen 25d werden diese zu der bereits erwähnten Reinigungs- und Vorbereitungsstation 30 transportiert und in dieser gereinigt (vgl. Pfanne 25e) und für die Wiederverwendung vorbereitet, insbesondere vorerhitzt (vgl. Pfanne 25a). Die entleerten Pfannen können auch bis zum Wiedergebrauch in dafür vorgesehenen Lagerstationen S aufbewahrt werden.After emptying the pans 25d they become the already mentioned Cleaning and preparation station 30 transported and in this cleaned (see pan 25e) and prepared for reuse, in particular preheated (see pan 25a). The empty pans can also until reuse in designated storage stations S be kept.

Für den Transport der Pfannen 25 von einer Station zu der nächsten oder zu den Lagerstationen S sind mehrfache Wege vorgesehen, wobei die Pfannen 25 auf Schienen oder mittels obliegender Kräne transportiert werden können.For transporting the pans 25 from one station to the next or to the storage stations S are provided multiple ways, the Pans 25 are transported on rails or by means of overhead cranes can.

Die erfindungsgemässe Giessanlage ist mit einem Steuersystem ausgestattet, mit dem die aus einzelnen Ofen 22, 23, 24 in die einzelnen Pfannen 25 einzufüllenden Chargen, die Legierungszusätze, Heizung, Kühlung, Gaszufuhr und Behandlungszeiten gesteuert werden, damit die Aluschmelze in gewünschter Qualität, mit gewünschter Temperatur und voll homogenisiert zu den Giessstationen 33, 34 gelangt.The casting plant according to the invention is equipped with a control system, with which the individual oven 22, 23, 24 in the individual pans 25th to be filled batches, the alloying additions, heating, cooling, gas supply and treatment times are controlled so that the aluminum melt in desired quality, with desired temperature and fully homogenized to the casting stations 33, 34 passes.

Durch die erfindungsgemässe Verwendung von Pfannen 25 für das Behandeln und Zuführen von Aluschmelze in steuerbaren Sequenzen zu vorzugsweise mehreren Giessstationen 33, 34 wird diese Verfahrensphase von dem eigentlichen Giessvorgang zeitlich abgekoppelt. Die einzelnen Behandlungen sind nicht mehr fix festgelegt und zeitlich begrenzt, sondern sie können nach Bedarf angepasst werden, bis die gewünschte Qualität der zu vergiessenden Aluschmelze in der jeweiligen Pfanne erreicht wird. Wird z.B. ein niedriger Wasserstoffgehalt verlangt, kann die Gasreinigungszeit (degassing) verlängert werden. Diese Möglichkeit bestand bei dem traditionellen In-line-Verfahren nach Fig. 1 nicht. Die Produktionsleistung der Giessanlage hängt vom eigentlichen Giessprozess an den Giesstationen alleine ab, der fortgesetzt werden kann, bis die Zuführung der behandelten Aluschmelze zu den Giessstationen in gewollter Weise unterbrochen wird.By the inventive use of pans 25 for the treatment and feeding of Alauschmelze in controllable sequences to preferably several Giessstationen 33, 34, this process phase is decoupled from the actual casting process in time. The individual treatments are no longer fix fixed and limited in time, but they can be adjusted as needed until the desired quality of the molten aluminum to be poured in the pan is achieved. If, for example, a low hydrogen content is required, the gas purification time ( degassing ) can be extended. This possibility did not exist in the traditional in-line method of FIG. The production capacity of the casting plant depends on the actual casting process at the casting stations alone, which can be continued until the feeding of the treated aluminum melt to the casting stations is interrupted in the desired manner.

Das erfindungsgemässe Verfahren ist wesentlich effizienter als das In-line-Verfahren, da die Notwendigkeit von grossen Wärmehalteofen entfällt. Wenn überhaupt, werden die Ofen zum Schmelzen und Aufheizen gebraucht, jedoch nicht zum Wärmehalten über längere Zeitabschnitte. Diese können als energetisch effiziente und ökologisch vorteilhafte Induktionsofen ausgebildet sein. Durch Vorheizen der Pfannen kann die in den Öfen erreichbare Temperatur der Schmelze eine tieferen Wert betragen.The inventive method is much more efficient than the in-line method, since the need for large heat holding furnace is eliminated. If anything, the furnace will melt and heat up used, but not for keeping warm over long periods of time. These can be used as an energetically efficient and ecologically beneficial induction furnace be educated. By preheating the pans can in the Ovens attainable melt temperature to a lower value.

Claims (19)

Giessverfahren für Aluminium bzw. Aluminiumlegierungen, bei dem ein Behandeln und Zuführen von Aluminiumschmelze zu mindestens einer Giessstation (33, 34) erfolgt, in welcher die Schmelze zu Halbprodukten oder dergleichen vergossen wird, dadurch gekennzeichnet, dass für das Behandeln und Zuführen der Aluminiumschmelze zu der jeweiligen Giessstation (33, 34) eine Anzahl von Pfannen (25) verwendet wird, in welche die Schmelze eingefüllt, zu mindestens einer weiteren Stufe (32) transportiert und dort behandelt wird, und anschliessend zu der Giessstation (33, 34) geliefert wird, in welcher die Pfannen (25) entleert werden.Casting process for aluminum or aluminum alloys, in which a treatment and feeding of molten aluminum to at least one casting station (33, 34) takes place, in which the melt is cast into semi-finished products or the like, characterized in that for the treatment and feeding of the molten aluminum to the respective casting station (33, 34) a number of pans (25) is used, in which the melt is filled, transported to at least one further stage (32) and treated there, and then to the casting station (33, 34) is supplied, in which the pans (25) are emptied. Giessverfahren nach Anspruch 1, dadurch gekennzeichnet, dass in einer weiteren Stufe (30) die entleerten Pfannen (25) gereinigt und für die Wiederverwendung vorbereitet, insbesondere vorerhitzt werden. Casting method according to claim 1, characterized in that in a further stage (30) the emptied pans (25) are cleaned and prepared for reuse, in particular preheated. Giessverfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in der ersten Stufe (21) die Schmelze aus einem oder wahlweise aus mehreren Öfen (22, 23, 24) in die Pfannen (25) eingefüllt wird, wobei beim Vorhandensein von mehreren Öfen (22, 23, 24) Aluminiumschmelze unterschiedlicher Qualität aus den einzelnen Öfen (22, 23, 24) in die Pfannen (25) eingefüllt werden kann.Casting method according to claim 1 or 2, characterized in that in the first stage (21) the melt from one or optionally of several furnaces (22, 23, 24) is filled into the pans (25), wherein in the presence of several furnaces ( 22, 23, 24) aluminum melt of different quality from the individual ovens (22, 23, 24) in the pans (25) can be filled. Giessverfahren nach Anspruch 3, dadurch gekennzeichnet, dass in der ersten Stufe (21) Induktionsofen verwendet werden.Casting method according to claim 3, characterized in that induction furnaces are used in the first stage (21). Giessverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass nach dem Einfüllen der jeweiligen Pfanne (25) die Schlacke von der Schmelzbadoberfläche abgeschöpft wird, wozu die Pfanne in eine Schrägstellung gebracht wird.Casting method according to one of claims 1 to 4, characterized in that after the filling of the respective pan (25), the slag is skimmed off the surface of the molten bath, for which purpose the pan is brought into an inclined position. Giessverfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass in der zweiten Stufe (32) die Zugabe von Legierungszusätzen in die Schmelze, deren Reinigung und Homogenisierung sowie allenfalls jeweils eine Temperaturregulierung durchgeführt wird.Casting method according to one of claims 1 to 5, characterized in that in the second stage (32) the addition of alloying additives in the melt, their cleaning and homogenization and, if necessary, in each case a temperature regulation is performed. Giessverfahren nach Anspruch 6, dadurch gekennzeichnet, dass in der zweiten Behandlungsstufe (32) die Pfannen (25) unterhalb eines in die jeweilige Pfanne (25) eintauchbaren Gebläserades zum Einblasen von Argon oder Stickstoff platzierbar sind zur kombinierten Wasserstoffentfernung, Homogenisierung und allenfalls Wärmeregulierung, wobei zur Beseitigung von alkalischen Spurverunreinigungen zusätzlich kleine Mengen von Chlorin dem Reinigungsgas beigemischt werden können. Casting method according to claim 6, characterized in that in the second treatment stage (32) the pans (25) below a in the respective pan (25) submersible impeller for blowing argon or nitrogen are placeable for combined hydrogen removal, homogenization and, if necessary, heat regulation, said For the removal of alkaline trace impurities additionally small amounts of chlorine in the cleaning gas can be added. Giessverfahren nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass zumindest ein Teil der Legierungszusätze bereits in die entleerten und gereinigten Pfannen (25) vor dem Einfüllen der Aluminiumschmelze eingebracht wird.Casting method according to one of claims 2 to 7, characterized in that at least a part of the alloying additives is already introduced into the emptied and cleaned pans (25) prior to filling the aluminum melt. Giessverfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Pfannen (25) auf Schienen oder mittels obliegender Kräne die einzelnen Stationen bzw. Stufen durchlaufen, wobei mehrfache Wege zu vorzugsweise mehreren Giessstationen (33, 34) und zu zusätzlichen Lagerstationen (S) zum Abstellen von mit Aluminiumschmelze gefüllten und/oder leeren Pfannen (25) bis zum Gebrauch führen.Casting method according to one of claims 1 to 8, characterized in that the pans (25) run through the individual stations or stages on rails or by means of overhead cranes, wherein multiple paths to preferably several Giessstationen (33, 34) and to additional storage stations (S ) to stop pans (25) filled with aluminum melt and / or empty until use. Giessverfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Entleerung der Pfannen (25) an der jeweiligen Giessstation (33, 34) durch den Boden der Pfannen unter steuerbarer Öffnung eines Schiebeverschlusses erfolgt, wobei die ausfliessende Aluminiumschmelze in einen Sammelkanal vorzugsweise unter Ummantelung durch ein Inertgas geleitet wird.Casting method according to one of claims 1 to 9, characterized in that the emptying of the pans (25) takes place at the respective casting station (33, 34) through the bottom of the pans under controllable opening of a sliding closure, wherein the outflowing molten aluminum in a collecting channel preferably below Sheath is passed through an inert gas. Giessverfahren nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, dass das Füllen der Pfannen (25) mit Aluminiumschmelze allenfalls mit gemischtem Material aus verschiedenen Ofen (22, 23, 24), die Zugabe der Legierungszusätze, die Homogenisierung, die Wärmeregulierung und der zeitliche Ablauf der Behandlung und Zuführung der Schmelze zu der gewählten Giessstation (33, 34) computergesteuert verläuft. Casting method according to one of claims 6 to 10, characterized in that the filling of the pans (25) with aluminum melt at best with mixed material from different furnace (22, 23, 24), the addition of the alloying additions, the homogenization, the thermal regulation and the temporal Course of treatment and feeding the melt to the selected casting station (33, 34) computer controlled runs. Giessverfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die jeweilige Giessstation (33, 34) kontinuierlich oder halbkontinuierlich betrieben wird und mit einem Filtersystem ausgerüstet ist.Casting method according to one of claims 1 to 11, characterized in that the respective casting station (33, 34) is operated continuously or semi-continuously and is equipped with a filter system. Giessanlage zum Durchführen des Verfahrens nach Anspruch 1, mit mindestens einer Giessstation (33, 34) und mit Mitteln zum Behandeln und Zuführen von Aluminiumschmelze zu der Giessstation (33, 34), dadurch gekennzeichnet, dass die Mittel zum Behandeln und Zuführen von Aluschmelze eine Anzahl von in einer ersten Füllstation (21) mit der Schmelze füllbaren Pfannen (25) umfassen, die zu einer zweiten Behandlungsstation (32) und von dort zu der jeweiligen Giessstation (33, 34) transportierbar sind, wobei für den Transport mehrfache Wege vorgesehen sind, und die Pfannen (25) jeweils mit einem Schiebeverschluss oder dergleichen ausgestattet sind, durch dessen Öffnen sie entleerbar sind.Casting installation for carrying out the method according to claim 1, comprising at least one casting station (33, 34) and means for treating and feeding molten aluminum to the casting station (33, 34), characterized in that the means for treating and feeding aluminum melt comprise a number comprising pans (25) which can be filled with the melt in a first filling station (21) and which can be transported to a second treatment station (32) and from there to the respective casting station (33, 34), multiple paths being provided for the transport, and the pans (25) are each equipped with a sliding closure or the like, by the opening of which they can be emptied. Giessanlage nach Anspruch 13, dadurch gekennzeichnet, dass eine weitere Reinigungs- und Vorbereitungsstation (30) für die entleerten Pfannen (25) vorgesehen ist, von der die Pfannen (25) zu der Füllstation (21) transportierbar sind.Casting installation according to claim 13, characterized in that a further cleaning and preparation station (30) for the emptied pans (25) is provided, from which the pans (25) can be transported to the filling station (21). Giessanlage nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass zusätzliche Lagerstationen (S) zum Abstellen von mit Aluminiumschmelze gefüllten und/oder entleerten Pfannen (25) bis zum Gebrauch vorhanden sind. Casting installation according to claim 13 or 14, characterized in that additional storage stations (S) for depositing aluminum melt-filled and / or emptied pans (25) are present until use. Giessanlage nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass die Füllstation (21) eine Anzahl von mit Ausgangsmaterial belieferbaren Ofen (22, 23, 24), vorzugsweise Induktionsofen, versehen ist, wobei die einzelnen Ofen (22, 23, 24) allenfalls mit Alumaterial unterschiedlicher Qualität belieferbar sind.Casting installation according to one of claims 13 to 15, characterized in that the filling station (21) is provided with a number of furnaces (22, 23, 24), preferably an induction furnace, which can be supplied with starting material, the individual furnaces (22, 23, 24) being if necessary, can be supplied with alumaterial of different quality. Giessanlage nach einem der Ansprüche 13 bis 16, dadurch gekennzeichnet, dass die Pfannen (25) mit einem Deckel abdeckbar sind, in welchen ein Brenner einbaubar ist zum Aufrechterhalten oder Erhöhen der Schmelzetemperatur.Casting installation according to one of claims 13 to 16, characterized in that the pans (25) can be covered with a lid, in which a burner can be installed to maintain or increase the melt temperature. Giessanlage nach einem der Ansprüche 13 bis 17, dadurch gekennzeichnet, dass die Pfannen mit einem porösen Stöpsel zum Einblasen von einem Inertgas ausgestattet sind.Casting installation according to one of claims 13 to 17, characterized in that the pans are equipped with a porous stopper for blowing in an inert gas. Giessanlage nach einem der Ansprüche 13 bis 18, dadurch gekennzeichnet, dass für den Transport der Pfannen (25) von einer Station zu der nächsten und zu den Lagerstationen (S) Schienen oder Kräne vorhanden sind.Casting installation according to one of Claims 13 to 18, characterized in that rails or cranes are provided for transporting the pans (25) from one station to the next and to the storage stations (S).
EP04405366A 2004-06-16 2004-06-16 Casting method and installation for casting aluminium or aluminium alloys Expired - Lifetime EP1607156B1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
AT04405366T ATE421398T1 (en) 2004-06-16 2004-06-16 CASTING PROCESS AND CASTING SYSTEM FOR ALUMINUM OR ALUMINUM ALLOYS
DE502004008913T DE502004008913D1 (en) 2004-06-16 2004-06-16 Casting and casting plant for aluminum or aluminum alloys
EP04405366A EP1607156B1 (en) 2004-06-16 2004-06-16 Casting method and installation for casting aluminium or aluminium alloys
CA002570361A CA2570361A1 (en) 2004-06-16 2005-06-16 Casting method and casting installation for aluminium or aluminium alloys
MXPA06014600A MXPA06014600A (en) 2004-06-16 2005-06-16 Casting method and casting installation for aluminium or aluminium alloys.
CNA2005800198473A CN1976773A (en) 2004-06-16 2005-06-16 Casting method and installation for casting aluminium or aluminium alloys
AU2005254220A AU2005254220A1 (en) 2004-06-16 2005-06-16 Casting method and casting installation for aluminium or aluminium alloys
JP2007515884A JP2008502483A (en) 2004-06-16 2005-06-16 Aluminum and / or aluminum alloy casting method and facility
US11/629,712 US20080164000A1 (en) 2004-06-16 2005-06-16 Casting Method and Casting Installation for Aluminium or Aluminium Alloys
PCT/EP2005/006486 WO2005123304A2 (en) 2004-06-16 2005-06-16 Casting method and casting installation for aluminium or aluminium alloys
RU2007101384/02A RU2007101384A (en) 2004-06-16 2005-06-16 METHOD FOR CASTING AND INSTALLATION FOR CASTING OF ALUMINUM OR ALUMINUM ALLOYS
ZA200609947A ZA200609947B (en) 2004-06-16 2006-11-28 Casting method and casting installation for aluminium or aluminium alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04405366A EP1607156B1 (en) 2004-06-16 2004-06-16 Casting method and installation for casting aluminium or aluminium alloys

Publications (2)

Publication Number Publication Date
EP1607156A1 true EP1607156A1 (en) 2005-12-21
EP1607156B1 EP1607156B1 (en) 2009-01-21

Family

ID=34932148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405366A Expired - Lifetime EP1607156B1 (en) 2004-06-16 2004-06-16 Casting method and installation for casting aluminium or aluminium alloys

Country Status (12)

Country Link
US (1) US20080164000A1 (en)
EP (1) EP1607156B1 (en)
JP (1) JP2008502483A (en)
CN (1) CN1976773A (en)
AT (1) ATE421398T1 (en)
AU (1) AU2005254220A1 (en)
CA (1) CA2570361A1 (en)
DE (1) DE502004008913D1 (en)
MX (1) MXPA06014600A (en)
RU (1) RU2007101384A (en)
WO (1) WO2005123304A2 (en)
ZA (1) ZA200609947B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008125319A1 (en) * 2007-04-16 2008-10-23 Stopinc Aktiengesellschaft Casting method and casting system for aluminum or aluminum alloys

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151816B (en) * 2011-03-10 2013-04-24 山东滨州渤海活塞股份有限公司 Automatic aluminum piston casting machine
CN104259396A (en) * 2014-07-10 2015-01-07 陕西国德电气制造有限公司 Manufacturing method for corbel
CN115213393B (en) * 2022-07-09 2023-07-21 江苏政田新材料有限公司 Molten steel filtering device for casting anchor chain wheel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736117A1 (en) 1987-10-26 1989-05-03 Krupp Gmbh PLANT FOR THE PRODUCTION OF STEEL, IN PARTICULAR MINI STEEL PLANT

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8428251D0 (en) * 1984-11-08 1984-12-19 Alcan Int Ltd Treating aluminium
US4959101A (en) * 1987-06-29 1990-09-25 Aga Ab Process for degassing aluminum melts with sulfur hexafluoride
US5272720A (en) * 1990-01-31 1993-12-21 Inductotherm Corp. Induction heating apparatus and method
JPH09182958A (en) * 1995-12-28 1997-07-15 Kusano Sangyo Kk Device for automatically transporting molten metal ladle
JP3680252B2 (en) * 1999-06-29 2005-08-10 Ｊｆｅスチール株式会社 How to use a regenerative burner
JP3621405B2 (en) * 2000-12-27 2005-02-16 株式会社豊栄商会 container
JP3323489B1 (en) * 2000-12-27 2002-09-09 株式会社豊栄商会 Container for supplying molten metal
JP2002205162A (en) * 2001-01-05 2002-07-23 Hoei Shokai:Kk System for supplying metal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736117A1 (en) 1987-10-26 1989-05-03 Krupp Gmbh PLANT FOR THE PRODUCTION OF STEEL, IN PARTICULAR MINI STEEL PLANT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008125319A1 (en) * 2007-04-16 2008-10-23 Stopinc Aktiengesellschaft Casting method and casting system for aluminum or aluminum alloys

Also Published As

Publication number Publication date
AU2005254220A1 (en) 2005-12-29
US20080164000A1 (en) 2008-07-10
WO2005123304A3 (en) 2006-08-10
CA2570361A1 (en) 2005-12-29
CN1976773A (en) 2007-06-06
ATE421398T1 (en) 2009-02-15
DE502004008913D1 (en) 2009-03-12
WO2005123304A2 (en) 2005-12-29
MXPA06014600A (en) 2007-05-16
ZA200609947B (en) 2008-11-26
RU2007101384A (en) 2008-07-27
EP1607156B1 (en) 2009-01-21
JP2008502483A (en) 2008-01-31

Similar Documents

Publication Publication Date Title
DE69922698T2 (en) MELTING / HOT HOLDING OVEN FOR ALUMINUM BLOCK
DE69914777T2 (en) DIRECT MELTING METHOD AND DEVICE
EP0483322B1 (en) Smelting plant with two adjacent smelting furnaces
DE69132590T2 (en) Refining furnace for copper
DE3321687A1 (en) METHOD AND DEVICE FOR CONTINUOUS WIND FRESHING OF NON-IRON LECHES
DE2322516A1 (en) CONTINUOUS PROCESS AND DEVICE FOR THE PREVENTION OF SULFIDE ORES
DE69109061T2 (en) Plant for the continuous melting of copper.
DE1961336A1 (en) Process and device for the continuous processing of sulphidic ores
WO2005123304A2 (en) Casting method and casting installation for aluminium or aluminium alloys
WO2002008476A1 (en) Method and device for reducing the oxygen content of a copper melt
DE1483154B1 (en) Apparatus and process for the continuous melting of copper concentrates in direct current and their conversion into metallic copper
EP0799323A1 (en) Tilting metallurgical unit comprising several vessels
DE2325593C2 (en) Continuous steel production
EP0217094A1 (en) Process and installation for maintaining the temperature of a melt in a ladle
DE3245050A1 (en) METHOD AND DEVICE FOR IMPLEMENTING OVEN TAPS, IN PARTICULAR HIGH-QUALITY OVEN TAPS
DE2724489C2 (en) Metal melting furnace
EP3473733B1 (en) Intermediate container for separation of slag
DE19545831C2 (en) Process for operating a double-vessel arc furnace system and double-vessel arc furnace
DE4212936A1 (en) Process and arrangement for the production of low-gas and non-porous cast aluminum alloys
WO2007073823A1 (en) Casting installation, in particular for aluminium or aluminium alloys, and method for operating the casting installation
EP1851347B1 (en) Method for melting down small-sized scrap aluminium with thermal pre-treatment
DE102005012721B4 (en) Charging system and method for melting metal ingots
DE69809693T2 (en) Process and plant for steel production
DE1911994B2 (en) Scrap melting process for steel production and apparatus for carrying out the process
WO2016012225A1 (en) Melting unit for melting down casting materials and method for producing molten material for casting

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20060615

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ LI

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20071221

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004008913

Country of ref document: DE

Date of ref document: 20090312

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090502

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090421

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090622

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

26N No opposition filed

Effective date: 20091022

BERE Be: lapsed

Owner name: STOPINC A.G.

Effective date: 20090630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090630

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090421

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20090930

Year of fee payment: 6

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090630

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20100706

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20100614

Year of fee payment: 7

Ref country code: IT

Payment date: 20100621

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090422

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20100614

Year of fee payment: 7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090121

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110722

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110616

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110616

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 421398

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110616

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004008913

Country of ref document: DE

Representative=s name: PATENTANWAELTE HENKEL, BREUER & PARTNER, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004008913

Country of ref document: DE

Effective date: 20130101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110616