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WO2000012769A1 - Procede de production en continu d'alliages metalliques - Google Patents

Procede de production en continu d'alliages metalliques Download PDF

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Publication number
WO2000012769A1
WO2000012769A1 PCT/DE1999/002712 DE9902712W WO0012769A1 WO 2000012769 A1 WO2000012769 A1 WO 2000012769A1 DE 9902712 W DE9902712 W DE 9902712W WO 0012769 A1 WO0012769 A1 WO 0012769A1
Authority
WO
WIPO (PCT)
Prior art keywords
alloy
furnace
base metal
metal
arc
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
PCT/DE1999/002712
Other languages
German (de)
English (en)
Inventor
Hans Bebber
Juan FÄHNRICH
Günter PHILLIPPS
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.)
Induga Industrieofen und Giesserei-Anlagen & Co KG GmbH
Original Assignee
Induga Industrieofen und Giesserei-Anlagen & Co KG 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 Induga Industrieofen und Giesserei-Anlagen & Co KG GmbH filed Critical Induga Industrieofen und Giesserei-Anlagen & Co KG GmbH
Priority to KR1020017002106A priority Critical patent/KR20010072774A/ko
Priority to JP2000567751A priority patent/JP2002523632A/ja
Publication of WO2000012769A1 publication Critical patent/WO2000012769A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/08—Apparatus
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/06—Alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/003—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals by induction
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a process for the continuous production of metal alloys, in which the desired metallic alloy surcharges of at least one other metal or of a master alloy are added to a liquid base metal, mixed to form a homogeneous melt, if necessary reduced and finally cast.
  • the invention further relates to a device for the continuous production of metal alloys, with a melting furnace for the base metal, an alloy furnace with a feed of the metallic alloy surcharges, a homogenization furnace and a casting device.
  • the base metal is first melted in a first furnace in production plants known according to the prior art, after which the metallic ones are melted in an alloy furnace into which the base metal melt is transferred Additions in solid form, melted and homogenized together with the base metal.
  • This homogenization is optionally followed by a deoxidation treatment and a complete or at least partial removal of unwanted accompanying substances (phosphorus, sulfur) by means of corresponding degassing processes until the metal alloy melt is poured with a correspondingly improved degree of purity.
  • the integration of an alloy furnace in the described production line ensures a considerable improvement in the quality of the metal alloy, since the dosage the metallic alloy surcharges as well as the temperature control and finally the mixing and buffering function of an alloy furnace allows good homogenization.
  • a hollow body-shaped wire is often used in practice, in the interior of which the additives, such as metals in powdered form, are pressed in.
  • This wire is unwound directly into the bath of the alloy furnace by means of a winding machine, where the wire melts and releases the alloy elements.
  • the filler material of this wire can also contain deoxidizing agents in powder form.
  • the wire winding process still has the disadvantage that considerable times are required to melt the alloy surcharges. This is also the reason why so-called master alloys are used, which are added in solid form to the base melt.
  • a master alloy is understood to mean alloys made of a base metal and a considerably higher percentage of the alloy metal.
  • a zinc-aluminum alloy it has already been proposed to liquefy the alloy metal separately from the base metal in a separate furnace and then to add it to the base metal in liquid form.
  • the metallic alloy surcharges are melted in an arc and added to the base metal in liquid form.
  • a self-consuming arc electrode is preferably used, which itself consists at least partially of the metallic alloy additives.
  • the arc power is set so that the dripping alloy metal is fed to the base metal continuously flowing through the furnace at the required rate corresponding to the desired alloy setting.
  • the measure described according to the invention saves a separate melting furnace for the metallic alloy surcharges. The energy required for melting the metallic aggregates does not have to be applied through the melting bath, so that shorter solution times are achieved.
  • the metallic alloy surcharges are preferably melted under a protective gas atmosphere, in particular from nitrogen or argon, which prevents reactions with gaseous elements in the furnace atmosphere.
  • the common liquid mixture of the base metal and the metallic aggregates is preferably fed to channel channels of an induction furnace.
  • This forced passage of the not yet homogenized mixture of the liquid alloy components through the channel channels of a induction furnace results in a significant inten sive ⁇ mixture, whereby the preparation time is still reduced significantly for the alloy setting.
  • the homogenized mixture is subjected to a reduction treatment and / or degassing before the melt, which is optimized in its composition in this way, continuously via a casting chamber, e.g. is transferred into a mold of a continuous caster.
  • the object is achieved with a device according to claim 6, which is characterized in that the alloy furnace is an arc furnace in which the metallic alloy surcharges are melted above the bath melt and can be fed continuously to the bath melt in liquid form.
  • the alloy furnace is integrated in the production line, which the melt continuously runs through.
  • the closed space formed by the protective wall can be flushed with protective gas and accordingly has corresponding supply lines with pressure and metering valves.
  • the homogenization furnace that follows the alloy furnace as part of a continuous production line is preferably an induction furnace with channel channels, through which the joint mixture of the base metal and the alloy additives can be positively guided and is followed by the continuously operating casting device, which is preferably a continuous casting device.
  • the device described is designed as a uniform furnace system, in which the liquid base metal supplied from a melting furnace flows continuously, absorbs the metallic alloy surcharges in liquid form and the initially inhomogeneous mixture that arises necessarily flows into channel channels of an induction furnace, in which intensive mixing takes place. If, depending on the degree of purity of the base alloy and the metallic additives, further measures such as homogenization of temperature and composition, decarburization, desulfurization, dephosphorization, removal of trace elements, degassing or deoxidation or other alloy optimizations are required, these will become necessary carried out in a further homogenization chamber in a manner known from the prior art, before the optimized melt flows into the mold of the continuous casting plant.
  • the device according to the invention thus works continuously in the passage in considerably shorter periods of time or with a significantly increased throughput.
  • the ignited arc 7 is directed onto the bath surface 3 and serves both to heat the bath and to control the addition of the metallic additives in liquid form, which drop off from the self-consuming electrode.
  • the electrode 5 is pushed in the direction of the arrow 8 by means of suitable tracking devices, so that the arc burns at a constant height.
  • the protective tube 4 creates a closed space which can be flushed with protective gas, for example argon, via a feed line 9.
  • protective gas for example argon
  • the still inhomogeneous mixture of the base metal and the liquid metallic additives flows through inductor channels 10 before the mixture reaches a homogenization chamber 11 in which final treatments such as deoxidations, degassing etc. can be carried out.
  • the finished alloy mixture passes from the homogenization chamber 11 into the casting chamber 12, from where it is continuously discharged via the outlet 13 into a continuous casting plant.
  • the channel channels 10 are always below the bath surface 3.
  • the homogenization chamber 11 and the casting chamber 12 are separated from one another by a wall 14 which ends below the bath surface 3.
  • the device shown represents a compact system that can be operated in a continuous cycle with short cycle times and with which an optimal alloy setting is possible.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Continuous Casting (AREA)
  • Furnace Details (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

Procédé et dispositif de fabrication en continu d'alliages métalliques, qui consiste à faire fondre le métal de base dans un four de fusion et à ajouter à ce métal de base, dans un four à alliage, des éléments métalliques d'alliage qui sont mélangés et éventuellement réduits et coulés. Selon la présente invention, les éléments métalliques d'alliage sont fondus à l'aide d'un arc électrique et introduits sous forme liquide dans le métal de base.
PCT/DE1999/002712 1998-09-01 1999-08-24 Procede de production en continu d'alliages metalliques Ceased WO2000012769A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020017002106A KR20010072774A (ko) 1998-09-01 1999-08-24 금속합금의 연속제조법
JP2000567751A JP2002523632A (ja) 1998-09-01 1999-08-24 金属合金を連続的に製造する方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19839670A DE19839670A1 (de) 1998-09-01 1998-09-01 Verfahren zur kontinuierlichen Herstellung von Metall-Legierungen
DE19839670.8 1998-09-01

Publications (1)

Publication Number Publication Date
WO2000012769A1 true WO2000012769A1 (fr) 2000-03-09

Family

ID=7879342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/002712 Ceased WO2000012769A1 (fr) 1998-09-01 1999-08-24 Procede de production en continu d'alliages metalliques

Country Status (4)

Country Link
JP (1) JP2002523632A (fr)
KR (1) KR20010072774A (fr)
DE (1) DE19839670A1 (fr)
WO (1) WO2000012769A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2295582C1 (ru) * 2005-06-30 2007-03-20 Общество с ограниченной ответственностью Фирма "ДАТА-ЦЕНТР" (ООО Фирма "ДАТА-ЦЕНТР") Способ переработки шлаков, содержащих оксид титана
CN102146526A (zh) * 2011-02-22 2011-08-10 宁夏惠冶镁业集团有限公司 镁合金的熔炼设备及一种新型镁合金节能生产新工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101398355B1 (ko) * 2012-04-12 2014-05-23 주식회사 포스코 트리퍼카 위치 검출 시스템

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915693A (en) * 1972-06-21 1975-10-28 Robert T C Rasmussen Process, structure and composition relating to master alloys in wire or rod form
US3947265A (en) * 1973-10-23 1976-03-30 Swiss Aluminium Limited Process of adding alloy ingredients to molten metal
US4080200A (en) * 1977-02-23 1978-03-21 A. Johnson & Co. Inc. Process for alloying metals
EP0120684A1 (fr) * 1983-03-28 1984-10-03 Alcan International Limited Fusion de déchets métalliques et introduction de solides dans le métal fondu
EP0178502A1 (fr) * 1984-09-27 1986-04-23 Aluminum Company Of America Procédé pour la fabrication d'alliages
EP0296700A2 (fr) * 1987-06-22 1988-12-28 KAISER ALUMINUM & CHEMICAL CORPORATION Addition commandée de lithium à de l'aluminium fondu
US5076548A (en) * 1990-05-21 1991-12-31 Aluminum Company Of America Commutation means for on-line alloying
FR2672620A1 (fr) * 1991-02-11 1992-08-14 Thermco Procede et installation de recuperation par fusion de metaux non ferreux sous forme divisee.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8610717D0 (en) * 1986-05-01 1986-06-04 Alform Alloys Ltd Production of alloys
US5057150A (en) * 1989-05-03 1991-10-15 Alcan International Limited Production of aluminum master alloy rod
US5078964A (en) * 1990-11-19 1992-01-07 Aluminum Company Of America Method of alloying feed material into molten metal

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915693A (en) * 1972-06-21 1975-10-28 Robert T C Rasmussen Process, structure and composition relating to master alloys in wire or rod form
US3947265A (en) * 1973-10-23 1976-03-30 Swiss Aluminium Limited Process of adding alloy ingredients to molten metal
US4080200A (en) * 1977-02-23 1978-03-21 A. Johnson & Co. Inc. Process for alloying metals
EP0120684A1 (fr) * 1983-03-28 1984-10-03 Alcan International Limited Fusion de déchets métalliques et introduction de solides dans le métal fondu
EP0178502A1 (fr) * 1984-09-27 1986-04-23 Aluminum Company Of America Procédé pour la fabrication d'alliages
EP0296700A2 (fr) * 1987-06-22 1988-12-28 KAISER ALUMINUM & CHEMICAL CORPORATION Addition commandée de lithium à de l'aluminium fondu
US5076548A (en) * 1990-05-21 1991-12-31 Aluminum Company Of America Commutation means for on-line alloying
FR2672620A1 (fr) * 1991-02-11 1992-08-14 Thermco Procede et installation de recuperation par fusion de metaux non ferreux sous forme divisee.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2295582C1 (ru) * 2005-06-30 2007-03-20 Общество с ограниченной ответственностью Фирма "ДАТА-ЦЕНТР" (ООО Фирма "ДАТА-ЦЕНТР") Способ переработки шлаков, содержащих оксид титана
CN102146526A (zh) * 2011-02-22 2011-08-10 宁夏惠冶镁业集团有限公司 镁合金的熔炼设备及一种新型镁合金节能生产新工艺

Also Published As

Publication number Publication date
JP2002523632A (ja) 2002-07-30
DE19839670A1 (de) 2000-03-02
KR20010072774A (ko) 2001-07-31

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