EP1925681A3 - Method for electro slag remelting of metals and mould therefor - Google Patents

Method for electro slag remelting of metals and mould therefor Download PDF

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Publication number
EP1925681A3
EP1925681A3 EP07021759A EP07021759A EP1925681A3 EP 1925681 A3 EP1925681 A3 EP 1925681A3 EP 07021759 A EP07021759 A EP 07021759A EP 07021759 A EP07021759 A EP 07021759A EP 1925681 A3 EP1925681 A3 EP 1925681A3
Authority
EP
European Patent Office
Prior art keywords
cooled
mold
water
slag bath
insulated
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
EP07021759A
Other languages
German (de)
French (fr)
Other versions
EP1925681B1 (en
EP1925681A2 (en
Inventor
Wolfgang Holzgruber
Harald Holzgruber
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.)
Inteco special melting technologies GmbH
Original Assignee
Inteco special melting technologies 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
Priority claimed from AT18842006A external-priority patent/AT504574B1/en
Application filed by Inteco special melting technologies GmbH filed Critical Inteco special melting technologies GmbH
Publication of EP1925681A2 publication Critical patent/EP1925681A2/en
Publication of EP1925681A3 publication Critical patent/EP1925681A3/en
Application granted granted Critical
Publication of EP1925681B1 publication Critical patent/EP1925681B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06—Melting-down metal, e.g. metal particles, in the mould
    • B22D23/10—Electroslag casting
    • 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
    • C22B9/16—Remelting metals
    • C22B9/18—Electroslag remelting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)

Abstract

Durch die Erfindung werden ein Verfahren und eine für dessen Durchführung geeignete Kokille (10), vorgestellt, durch welche die Wärmeverluste eines Schlackenbads (8) reduziert werden können. Dabei erfolgt das Umschmelzen in einer kurzen, zweiteiligen Gleitkokille (10), deren unterer , den Giessquerschnitt formender Teil (12) wassergekühlt und deren oberer Teil (20) gegen Wärmeabfuhr ganz oder teilweise isoliert ist. Während des regulären Blockaufbaus wird der Metallspiegel (5) durch eine entsprechende Steuerung der Relativbewegung zwischen Kokille (10) und Umschmelzblock (6) immer so im unteren, wassergekühlten Teil (12) der Kokille (10) -- also unterhalb der Trennungslinie (18) zwischen wassergekühltem Teil (12) und isoliertem Teil (20) derselben -- gehalten, dass der Abstand zwischen der Oberfläche des Metallspiegels (5) einerseits sowie der durch die Trennungslinie (18) zwischen gekühltem Teil (12) und isoliertem Teil (20) bestimmten Ebenen andererseits mindestens 5 mm beträgt, höchstens jedoch 100 mm. Das auf dem Metallspiegel (5) schwimmende Schlackenbad (8) befindet sich zumindest zu 75 % seiner Höhe (h) im Bereich jenes isolierten oberen Kokillenteils (20). Der gegen Wärmeabfuhr isolierte obere Teil (20), der Gleitkokille (10) ist mehrschichtig aufgebaut.By means of the invention, a method and a mold (10) suitable for its implementation are presented, by means of which the heat losses of a slag bath (8) can be reduced. Here, the remelting takes place in a short, two-part Gleitkokille (10), whose lower, the casting cross-section forming part (12) is water cooled and the upper part (20) is completely or partially isolated against heat dissipation. During the regular block construction, the metal mirror (5) is always in the lower, water-cooled part (12) of the mold (10) by a corresponding control of the relative movement between the mold (10) and remelting block (6) - ie below the dividing line (18). between the water-cooled part (12) and the insulated part (20) of the same - held such that the distance between the surface of the metal mirror (5) on the one hand and by the dividing line (18) between the cooled part (12) and insulated part (20) Levels on the other hand at least 5 mm, but not more than 100 mm. The slag bath (8) floating on the metal mirror (5) is at least 75% of its height (h) in the region of that isolated upper mold part (20). The insulated against heat dissipation upper part (20), the Gleitkokille (10) has a multilayer structure.

Zwischen einer die äußere Schicht darstellenden wassergekühlten Stützkonstruktion (22) und einer inneren, mit dem Schlackenbad (8) in Berührung stehenden und hoch temperaturbeständigen Schicht (26) ist eine wärmeisolierende Zwischenschicht (28) angeordnet.

Figure imgaf001
A heat-insulating intermediate layer (28) is arranged between a water-cooled support structure (22) which forms the outer layer and an inner, high-temperature-resistant layer (26) in contact with the slag bath (8).
Figure imgaf001
EP07021759A 2006-11-15 2007-11-09 Method for electro slag remelting of metals and mould therefor Not-in-force EP1925681B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT18842006A AT504574B1 (en) 2006-11-15 2006-11-15 METHOD OF ELECTRIC SLACKING METHODS OF MELTING METALS
DE200610062460 DE102006062460A1 (en) 2006-11-15 2006-12-28 Mold for electro-slag refining of metals based on iron and nickel alloys comprises an upper insulated part having several layers to prevent heat loss

Publications (3)

Publication Number Publication Date
EP1925681A2 EP1925681A2 (en) 2008-05-28
EP1925681A3 true EP1925681A3 (en) 2009-03-11
EP1925681B1 EP1925681B1 (en) 2011-04-27

Family

ID=39060225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07021759A Not-in-force EP1925681B1 (en) 2006-11-15 2007-11-09 Method for electro slag remelting of metals and mould therefor

Country Status (2)

Country Link
US (1) US7849912B2 (en)
EP (1) EP1925681B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT509736B1 (en) * 2010-05-14 2012-03-15 Inteco Special Melting Technologies Gmbh METHOD AND DEVICE FOR CONTINUOUS RECORDING OF SLAG LEVEL IN ESU PLANTS WITH SHORT SLIDE COILS
JP5669509B2 (en) * 2010-07-16 2015-02-12 高橋 謙三 Molding device for continuous casting with stirring device
AT512471B1 (en) * 2012-02-07 2014-02-15 Inteco Special Melting Technologies Gmbh TRANSPORT SYSTEM FOR SELF-INVERTING ELECTRODES
CN104330411B (en) * 2014-11-10 2017-05-10 东北大学 Device and method for dynamically observing and simulating behaviors of molten drops in electric slag remelting process
CN112792323B (en) * 2020-12-21 2022-06-28 河钢股份有限公司 Electroslag remelting feeding process for nickel-based material
WO2023142422A1 (en) * 2022-01-28 2023-08-03 苏州大学 Electroslag remelting device of single-inlet multi-outlet type water-cooled crystallizer and method for electroslag remelting
CN120619308B (en) * 2025-08-12 2025-10-28 太原科技大学 Device and method for preparing large cast ingot by layer-by-layer solidification

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1817124A1 (en) * 1968-01-09 1969-08-14 Ver Edelstahlwerke Ag Method and device for cooling metal melts formed by electroslag remelting, in particular steel melts
AT406239B (en) * 1996-04-09 2000-03-27 Inteco Int Techn Beratung Water-cooled mould for continuous casting or electroslag remelting
WO2002040726A1 (en) * 2000-11-14 2002-05-23 Inteco Internationale Technische Beratung Ges.M.B.H. Method and device for producing ingots or strands of metal by melting electrodes in an electroconductive slag bath

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT297959B (en) 1968-06-28 1972-04-25 Boehler & Co Ag Geb Process for electroslag remelting of metals and alloys
SU520785A1 (en) * 1974-11-28 1977-10-25 Ордена Ленина И Ордена Трудового Красного Знамени Институт Электросварки Им. Е.О.Патона Electroslag remelting furnace
DE19614182C1 (en) 1996-04-11 1997-07-31 Inteco Int Techn Beratung Water-cooled casting die for production of blocks or strips
AT409233B (en) * 2000-02-07 2002-06-25 Inteco Int Techn Beratung METHOD AND ARRANGEMENT FOR PRODUCING CAST BODIES FROM METALS
AT410412B (en) * 2000-11-10 2003-04-25 Inteco Int Techn Beratung METHOD OF ELECTRIC SLACKING METHODS OF MELTING METALS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1817124A1 (en) * 1968-01-09 1969-08-14 Ver Edelstahlwerke Ag Method and device for cooling metal melts formed by electroslag remelting, in particular steel melts
AT406239B (en) * 1996-04-09 2000-03-27 Inteco Int Techn Beratung Water-cooled mould for continuous casting or electroslag remelting
WO2002040726A1 (en) * 2000-11-14 2002-05-23 Inteco Internationale Technische Beratung Ges.M.B.H. Method and device for producing ingots or strands of metal by melting electrodes in an electroconductive slag bath

Also Published As

Publication number Publication date
US20080115909A1 (en) 2008-05-22
EP1925681B1 (en) 2011-04-27
EP1925681A2 (en) 2008-05-28
US7849912B2 (en) 2010-12-14

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