[go: up one dir, main page]

EP1533390A1 - Procédé et dispositif pour allier des fontes d'Aluminium ou Magnésium - Google Patents

Procédé et dispositif pour allier des fontes d'Aluminium ou Magnésium Download PDF

Info

Publication number
EP1533390A1
EP1533390A1 EP03026401A EP03026401A EP1533390A1 EP 1533390 A1 EP1533390 A1 EP 1533390A1 EP 03026401 A EP03026401 A EP 03026401A EP 03026401 A EP03026401 A EP 03026401A EP 1533390 A1 EP1533390 A1 EP 1533390A1
Authority
EP
European Patent Office
Prior art keywords
chamber
flux
melting
furnace chamber
furnace
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.)
Ceased
Application number
EP03026401A
Other languages
German (de)
English (en)
Inventor
Erich Ing. Rauch
Martin Rauch
Primus Wohlmuth
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.)
Ing Rauch Fertigungstechnik GmbH
Original Assignee
Ing Rauch Fertigungstechnik 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 Ing Rauch Fertigungstechnik GmbH filed Critical Ing Rauch Fertigungstechnik GmbH
Priority to EP03026401A priority Critical patent/EP1533390A1/fr
Publication of EP1533390A1 publication Critical patent/EP1533390A1/fr
Ceased legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/0084—Obtaining aluminium melting and handling molten aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/062—Obtaining aluminium refining using salt or fluxing agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium

Definitions

  • the invention relates to a method for producing a light metal alloy, which contains at least one flux-sensitive component and to a device to carry out this process.
  • the light metal will indeed form the main component in general. Therefore, a cleaning with the aid of flux in the first step highly effective, while the flux sensitive Components stay away from the bathroom for the time being.
  • the flux-sensitive components are added, but preferably Protected by an inert gas blanket (if necessary and not for example with a vacuum above the bath surface manages).
  • a problem with the immediate further processing to ingots, strands or other formed material is that these molding operations in general, at least for a certain amount of time, continuously, for example in one Continuous casting plant, whereas the chambers are filled and emptied only in batches can.
  • it is inventively preferred if of at least two melting chambers alternately one filled and heated, the other is emptied, and that preferably the two chambers at least one periodically continuously operating molding machine is connected downstream. There are So then at least two pairs of melting chamber and second furnace chamber present alternately the at least periodically continuously working molding machine dine and in the meantime at best be cleaned.
  • Particularly advantageous method of the invention is used when the under Shielding gas located light metal bath in the second furnace chamber strontium and / or Beryllium is added, for example, to obtain the alloy AJ 62.
  • the invention relates, as already mentioned, to a device for carrying out of the procedure.
  • a device for carrying out of the procedure is based on such, which a Melting chamber and a second furnace chamber and is characterized in that the melting chamber has a device for discharging flux Assigned gases, and that the second furnace chamber has an inlet for connection to a protective gas source. While the flux is simply over an arbitrary feed opening in the melt chamber is entered, develop by the addition of gases which must be removed from the melt chamber, and this distinguishes the arrangement according to the invention from the prior art.
  • each one a melting chamber comprehensive Melting furnace 2 of a pair consisting of such a melting furnace 2 and a downstream second furnace chamber 3 and one such chamber comprising Furnace 3.
  • Furnaces 2, 3 can be combined to form a single two-chamber furnace, which accordingly then a melting chamber and a removal chamber includes, about similar to the embodiment as shown for example in US-A-5,411,240 or EP-A-1130266 ( Figure 7).
  • the melting chambers 2 are intended to serve relatively impure - and therefore cost - to prepare raw material, which then within the melting chambers 2 is cleaned by means of a flux.
  • a flux is not possible if the starting material is a light metal, such as aluminum, is what with a flux-sensitive alloy component to be alloyed.
  • a typical such alloying ingredient is strontium (which begins to foam in the presence of flux), but also beryllium.
  • Other sensitive alloying constituents are rare earths.
  • each of the two melting chambers 2 a suction hood 4 approximately in shape a parallelepiped, to which a suction tube 5 is connected.
  • the lower end 5 ' This suction tube 5 can then optionally to a filter, a gas scrubber or the like. be guided.
  • the main constituent (s) may be Mg or Al alone or a flux-insensitive alloying ingredient such as Cu.
  • Each melting chamber 2 is a switching board 6 for adjusting the heating power or the Temperature and other data assigned.
  • the top of each melting chamber 2 is each completed by a removable cover 7, of a pump tube. 8 with attached pump motor (similar to US-A-5,411,240 or EP-A-1130266) is enforced.
  • this protrudes (not visible here) Intake tube of each pump 8 within the melting chamber 2 down to a level, which is located above the bottom of the melting chamber but below the bath level is to avoid in this way that neither sediment from the ground yet Floats are sucked in from the bath level.
  • the outlet pipe 9 of this pump is a level, which is located above the bottom of the melting chamber but below the bath level is to avoid in this way that neither sediment from the ground yet Floats are sucked in from the bath level.
  • the further furnace chamber 3 will now, usually, have a temperature which the alloying component added via the respective addition funnel 10 melts.
  • This temperature may be higher than that of the melting chamber 2 (if the flux-sensitive Component has a higher melting temperature), it can - in reverse Fall - but also have a lower temperature, so the melt only continue to keep fluid.
  • the alloying ingredients e.g. the Beryllium, not necessarily melted, but, for example, in powder form, as nuclei can be introduced into the melt, if about this melt is to be further processed in the partially solidified state. In general it will therefore be preferred if the temperature of the second furnace chamber 3 is lower than that of the melting chamber 2.
  • the further furnace chamber 3 with a known mechanical or any be provided with another agitator, for example with a means for stirring by means of a pump, in which both intake and outlet openings within the bath the furnace chamber 3 are arranged, similar to that described in DE-A-102 56 513 is.
  • the furnace chambers 3, as well as a furnace chambers 3 downstream heated Furnace space 12, are preferably mounted on lifting platforms 13, so as to connect easier to solve with the funnel tube 11.
  • the lifts 13 may, if desired switched to a common, synchronized up or down movement be.
  • the heatable space 12 is part of an at least periodically continuously working Molding machine. It may be a continuous casting plant, in particular a Horizontal continuous casting, act, in the present embodiment, however, is the Oven chamber 12 part of a Abmasselvoriques, in which in a conventional manner Masselformen 14 along a transport path 15 at an outlet channel 16 of the heated Room 12 and an associated pump 17 are passed to the filling, i.e. after filling each ingot mold 14, the pump 17 is turned off (quasi-continuous Operation) until a new ingot mold 14 is located in front of the outlet channel 16.
  • the pump 17 will preferably be formed similar to the pumps 8. Of course it is possible (though it is not preferred) to form the ingots 14 by means of a spoon to feed. On the other hand, it is also possible to the outlet channel 16 under inert gas to lead.
  • the heatable space 12 is preferably a level sensor (not shown) provided, the refilling of the space 12 (which works so quasi-continuously, whereas the furnace chambers 3 are filled in batches) alternately Filling a furnace chamber 3 via a pipe 18 (only one is visible) at the bottom the furnace chamber 3 containing the purified melt takes place, whether via a level sensor controlled valve or a pump. So because the furnace chambers 3 alternately emptied or charged by Schmelzenkammem 2, the quasi-continuous Operation of the molding machine 12-15 be maintained. It was above said that the chambers 2 and 3 united in a single two-chamber furnace can be. In itself, it would also be conceivable, the heated space 12 as the third To integrate chamber in such a multi-chamber furnace.
  • both the furnace chambers 3 and the heatable space 12 at their top supply and discharge lines 19 for a protective gas or for connection to a Protective gas source have, so that thus an oxidation of the melt surface effectively prevented.
  • 15 are on the transport route Ports 20 for the supply and removal of inert gas (two are shown, but it can also only one or more) in a covered portion 21 provided to a To prevent oxidation of molten pig material; only after the solidification, i.e. at the end of the covered section 21, the pigs can be transported open.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
EP03026401A 2003-11-19 2003-11-19 Procédé et dispositif pour allier des fontes d'Aluminium ou Magnésium Ceased EP1533390A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03026401A EP1533390A1 (fr) 2003-11-19 2003-11-19 Procédé et dispositif pour allier des fontes d'Aluminium ou Magnésium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03026401A EP1533390A1 (fr) 2003-11-19 2003-11-19 Procédé et dispositif pour allier des fontes d'Aluminium ou Magnésium

Publications (1)

Publication Number Publication Date
EP1533390A1 true EP1533390A1 (fr) 2005-05-25

Family

ID=34429382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03026401A Ceased EP1533390A1 (fr) 2003-11-19 2003-11-19 Procédé et dispositif pour allier des fontes d'Aluminium ou Magnésium

Country Status (1)

Country Link
EP (1) EP1533390A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107385225A (zh) * 2017-09-13 2017-11-24 青海高原有色金属研发有限公司 一种铝熔体净化系统以及铝及铝合金生产系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411240A (en) * 1993-01-26 1995-05-02 Ing. Rauch Fertigungstechnik Gesellschaft M.B.H. Furnace for delivering a melt to a casting machine
WO1996014439A2 (fr) * 1994-11-03 1996-05-17 Schmitz + Apelt Loi Industrieofenanlagen Gmbh Four pour fusion du magnesium et procede de fusion du magnesium
DE19747002A1 (de) * 1997-10-24 1999-04-29 Audi Ag Verfahren zum Betreiben eines Magnesiumschmelzofens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411240A (en) * 1993-01-26 1995-05-02 Ing. Rauch Fertigungstechnik Gesellschaft M.B.H. Furnace for delivering a melt to a casting machine
WO1996014439A2 (fr) * 1994-11-03 1996-05-17 Schmitz + Apelt Loi Industrieofenanlagen Gmbh Four pour fusion du magnesium et procede de fusion du magnesium
DE19747002A1 (de) * 1997-10-24 1999-04-29 Audi Ag Verfahren zum Betreiben eines Magnesiumschmelzofens

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; ARGO, D. ET AL: "Chemical composition and cleanliness during recycling of the AJ52 magnesium strontium alloy", XP008030649, retrieved from STN Database accession no. 139:39411 CA *
MAGNESIUM TECHNOLOGY 2003, PROCEEDINGS OF THE SYMPOSIUM HELD DURING THE 2003 TMS ANNUAL MEETING, SAN DIEGO, CA, UNITED STATES, AR. 2-6, 2003 (2003), 33-37. EDITOR(S): KAPLAN, HOWARD I. PUBLISHER: MINERALS, METALS MATERIALS SOCIETY, WARRENDALE, PA., 2003, XP002280394 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107385225A (zh) * 2017-09-13 2017-11-24 青海高原有色金属研发有限公司 一种铝熔体净化系统以及铝及铝合金生产系统
CN107385225B (zh) * 2017-09-13 2019-12-17 青海高原有色金属研发有限公司 一种铝熔体净化系统以及铝及铝合金生产系统

Similar Documents

Publication Publication Date Title
DE2853442C2 (fr)
DE3906270C2 (de) Verfahren und Vorrichtung zum Schmelzen von Glas
DE69412228T2 (de) Verfahren und Vorrichtung zur Herstellung von Stahl in einem Behälter
DE1960999A1 (de) Verfahren zum Reinigen von Metallen in der Schmelze und hierfuer geeignete Vorrichtung
DE3850464T2 (de) Giessverfahren für eine Stranggiessvorrichtung mit reduzierter Bauhöhe und entsprechender Tauchausguss.
DE3049053A1 (de) Verfahren und vorrichtung zur abtrennung von schlacke und zum ausgiessen einer stahlschmelze aus einem behaelter
DE60115489T2 (de) Vorrichtung und verfahren zum stranggiessen von flüssigem stahl
DE1458133A1 (de) Metall-Stranggussverfahren und Einrichtung zu seiner Durchfuehrung
EP1533390A1 (fr) Procédé et dispositif pour allier des fontes d'Aluminium ou Magnésium
DE3431181A1 (de) Verfahren und einrichtung fuer das behandeln und giessen von metallen und legierungen in einem geschlossenen raum
DE69225063T2 (de) Differentialdruck-Gegenschwerkraftgiessen
DE1608595B1 (de) Verfahren zum Herstellen von alterungsbestaendigem Tiefziehstahl
DE20012066U1 (de) Anlage zur Gewinnung von verkaufsfertigen Barren aus einer Legierung
DE2655865A1 (de) Verfahren zum kontinuierlichen giessen von stahl
EP0137315A2 (fr) Procédé et installation pour la fabrication d'alliages de haute pureté
DE1558412A1 (de) Verfahren und Vorrichtung zum Einschmelzen von Metall
DE3734406A1 (de) Verfahren und vorrichtung zur herstellung von gusskoerpern aus druckbehandelten schmelzen aus stahllegierungen
DE2501603C3 (fr)
AT412149B (de) Giesseinrichtung für leichtmetall
DE1057291B (de) Verfahren und Vorrichtung zum Lichtbogenschmelzen von Metallen in einer Stranggusskokille in Zwillingsausfuehrung
DE1929848C3 (de) Vorrichtung und Verfahren zum Zuführen einer Stahlschmelze zu einer Stranggießkokille
DE19631583C2 (de) Verfahren zur Herstellung eines Erzeugnisses aus einer Legierung
DE3011124A1 (de) Kontinuierliches herstellungsverfahren von kupferlegierungsdraehten
DE2058669A1 (de) Vakuumbehandlung von Metallschmelzen
DE19710887A1 (de) Verfahren und Vorrichtung zum Herstellen von Barren aus Leichtmetall oder einer Leichtmetallegierung, insbesondere aus Magnesium oder einer Magnesiumlegierung

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

17P Request for examination filed

Effective date: 20040830

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 PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

AKX Designation fees paid

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

17Q First examination report despatched

Effective date: 20090119

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20100826