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EP0041680A1 - Apparatus for introducing highly reactive substances to a molten-metal bath - Google Patents

Apparatus for introducing highly reactive substances to a molten-metal bath Download PDF

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Publication number
EP0041680A1
EP0041680A1 EP81104193A EP81104193A EP0041680A1 EP 0041680 A1 EP0041680 A1 EP 0041680A1 EP 81104193 A EP81104193 A EP 81104193A EP 81104193 A EP81104193 A EP 81104193A EP 0041680 A1 EP0041680 A1 EP 0041680A1
Authority
EP
European Patent Office
Prior art keywords
filling tube
refractory material
bulb
molten metal
reaction chamber
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
EP81104193A
Other languages
German (de)
French (fr)
Other versions
EP0041680B1 (en
Inventor
Günther Beele
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to AT81104193T priority Critical patent/ATE6433T1/en
Publication of EP0041680A1 publication Critical patent/EP0041680A1/en
Application granted granted Critical
Publication of EP0041680B1 publication Critical patent/EP0041680B1/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires

Definitions

  • a basket-like metal reinforcement inserted into the refractory material has expansion joints to the refractory material, so that the walls of the immersion bulb are not destroyed by the high temperature and the extreme reactions.
  • the fiber reinforcement of the refractory material is to be produced from austenitic stainless steel sections which are uniformly mixed into the mass.
  • a flange 9, which is embedded in the refractory mass 6, at the end of the filling tube 5 on the diving bulb side serves to fasten the diving bulb 1 to the filling tube 5.
  • 6 expansion joints 13 are provided between the metal reinforcement 12 md of the refractory mass.
  • the refractory mass 6 is given increased stability in that a fiber reinforcement 14, which consists of austenitic stainless steel sections, is uniformly mixed into the mass 6.
  • the filling tube 5 is sealed by a sealing plug 15 to seal the reaction chamber 7 during the treatment.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The lowermost end of a filling tube which extends through a protective top into a vessel containing a melt includes a support flange which mounts a dip container inside the vessel. The dip container is shaped to define an internal reaction chamber below the lowermost end of the filling tube and to provide communication between the internal reaction chamber and the melt. It includes a basket-shaped metal container which is attached to the support flange and an outer sheath formed of a reinforcing material-containing refractory, the outer sheath covering both the metal container and the filling tube up to a point near the protective top so as to leave an expansion joint between it and each of the metal containers, the filling tube and the protective top.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Einführen stark reagierender Zusätze in eine Metallschmelze, insbesondere zum Einführen von Magnesium in eine Eisenschmelze zur Herstellung von Gußeisen mit Kugelgraphit, bestehend aus einem die Metallschmelze aufnehmenden Behandlungsgefäß, in das eine über ein Füllrohr an einem Schutzdeckel hängend befestigte Tauchbirne einführbar ist, die in ihrem Inneren eine Reaktionskammer aufweist, welche über das Füllrohr mit Zusätzen beschickbar ist und über Kontaktöffnungen mit der Metallschmelze in Verbindung steht, wobei die Tauchbirne aus einem feuerfesten Material besteht, welches das Füllrohr in seinem in das Behandlungsgefäß hineinragenden Abschnitt umgibt.The invention relates to a device for introducing strongly reacting additives into a molten metal, in particular for introducing magnesium into an molten iron for the production of spheroidal graphite cast iron, consisting of a treatment vessel receiving the molten metal, into which a suspension is attached to a protective cover via a filling tube Immersion bulb can be inserted, which has a reaction chamber in its interior, which can be charged with additives via the filling tube and is connected to the molten metal via contact openings, the immersion bulb consisting of a refractory material which surrounds the filling tube in its section protruding into the treatment vessel .

Bei einer bekannten Vorrichtung (DE-OS 2 208 960) ist die Tauchbirne aus feuerfestem Material hergestellt, wobei das Füllrohr direkt von einer feuerfesten Masse umgeben ist. Der Tauchbirne wird dabei im Bereich der Reaktionskammer eine gewisse Stabilität durch eine korbartige Metallarmierung, die ebenfalls von der feuerfesten Masse umgeben ist, verliehen. Zur Fixierung der Tauchbirne am Füllrohr ist dieses an seinem Ende konisch erweitert.In a known device (DE-OS 2 208 960) the immersion bulb is made of refractory material, the filling tube being directly surrounded by a refractory mass. The immersion bulb is given a certain stability in the area of the reaction chamber by a basket-like metal reinforcement, which is also surrounded by the refractory mass. To fix the immersion bulb on the filling tube, it is flared at its end.

Die starke Erwärmung des Füllrohresjund die verpuffungsartigen Reaktionen in der Tauchbirne während des Eintauch- vorganges führen zur Rißbildung und häufig zur Zerstörung des feuerfesten Materials der Tauchbirne oder des Füllrohres im Bereich ihrer Verbindung, so daß sich der Inhalt der Reaktionskammer während des Tauchvorganges schlagartig und unkontrolliert in die Metallschmelze ergießen kann. Diese schlagartige Verbindung großer Mengen der Zusätze mit der Metallschmelze führt zu Überreaktionen, die eine Zerstörung des Behandlungsgefäßes bzw. des Schutzdeckels und somit ein Aus- bzw. Überlaufen der Metallschmelze zur Folge haben kann. Dadurch besteht für das anwesende Bedienungspersonal erhöhte Unfallgefahr. Eine Rißbildung und Zerstörung während des Tauchvorgangs tritt bei der bekannten Tauchbirne in erster Linie im Bereich des ummantelten Füllrohres und zwar an der Befestigung des Füllrohres an der Tauchbirne, weiterhin aber auch an der die Reaktionskammer umgebenden Wandung auf.The strong heating of the Füllrohresjund verpuffungsartigen reactions in the submersible bulb during the operation E intauch- lead to cracking, and often the destruction of the refractory material of the immersion bulb or of the filling tube in the area of their connection, so that the contents of the reaction chamber can suddenly pour out into the molten metal in an uncontrolled manner during the immersion process. This sudden connection of large amounts of the additives with the molten metal leads to overreactions which can result in the destruction of the treatment vessel or the protective cover and thus an outflow or overflow of the molten metal. This increases the risk of accidents for the operating personnel present. Cracking and destruction during the immersion process occurs in the known immersion bulb primarily in the area of the coated filling tube, specifically on the fastening of the filling tube to the immersion bulb, but also also on the wall surrounding the reaction chamber.

Die der Erfindung zugrundeliegende Aufgabe besteht somit darin, die vorstehend beschriebenen Schwierigkeiten zu vermeiden und eine Vorrichtung zu schaffen, die sowohl den thermischen Belastungen als auch den hohen, bei der Reaktion auftretenden Dampfdrücken standhält.The object on which the invention is based is therefore to avoid the difficulties described above and to provide a device which can withstand both the thermal loads and the high vapor pressures occurring during the reaction.

Diese Aufgabe wird an einer Vorrichtung der in Rede stehenden Gattung durch die im Kennzeichen des Anspruchs 1 aufgeführten Merkmale gelöst. Durch die Verwendung eines feuerfesten Materials aus einer Massenit einer Faserverstärkung wird die Stabilität sowohl der Tauchbirne als auch des das Füllrohr ummantelnden Materials erheblich erhöht. Dabei ist die Tauchbirne an einem Flansch des Füllrohres befestigt, so daß sie im Übergangsbereich frei von radialen Belastungen ist, welche andernfalls ein Zerspringen des feuerfesten Materials zur Folge hätten. Weiterhin ist durch die Anordnung eines Dehnungsspalts zwischen dem Füllrohr, dem Flansch und dem Schutzdeckel einerseits sowie dem feuerfesten Material andererseits gewährleistet, daß die aufgrund der hohen Temperatur auftretenden unterschiedlichen Dehnungen nicht zu Rissen im feuerfesten Material und somit zur Zerstörung der Vorrichtung führen.This object is achieved on a device of the type in question by the features listed in the characterizing part of claim 1. By using a refractory material made from a mass with a fiber reinforcement, the stability of both the immersion bulb and the material encasing the filling tube is considerably increased. The immersion bulb is attached to a flange of the filling tube so that it is free of radial loads in the transition area, which would otherwise result in the refractory material shattering. Furthermore, the arrangement of an expansion gap between the filling tube, the flange and the protective cover on the one hand and the refractory material on the other hand ensures that the different expansions occurring due to the high temperature do not lead to cracks in the refractory material and thus to the destruction of the device.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß eine in das feuerfeste Material eingesetzte korbartige Metallarmierung zu dem feuerfesten Material hin Dehnfugen aufweist, so daß die Wandungen der Tauchbirne nicht durch die hohe Temperatur und die extremen Reaktionen zerstört werden. Außerdem soll die Faserverstärkung des feuerfesten Materials aus gleichmäßig in die Masse eingemischten austenitischen Edelstahlabschnitten hergestellt werden.In a further embodiment of the invention it is provided that a basket-like metal reinforcement inserted into the refractory material has expansion joints to the refractory material, so that the walls of the immersion bulb are not destroyed by the high temperature and the extreme reactions. In addition, the fiber reinforcement of the refractory material is to be produced from austenitic stainless steel sections which are uniformly mixed into the mass.

Zur weiteren Erläuterung der Erfindung wird auf die Zeichung verwiesen, in der ein Ausführungsbeispiel vereinfacht dargestellt ist.To further explain the invention, reference is made to the drawing, in which an exemplary embodiment is shown in simplified form.

In der Fig. ist mit 1 eine Tauchbirne bezeichnet, die zum Einbringen stark reagierender Zusätze in eine Metallschmelze 2 dient. Die Metallschmelze 2 wird dabei von einem Behandlungs-gefäß 3 aufgenommen, welches durch einen Schutzdeckel 4 verschlossen ist. Durch den Schutzdeckel 4 hindurch ist ein Füllrohr 5 geführt, das an seinem einen Ende die hängende Tauchbirne 1 aufnimmt, wobei die Tauchbirne 1 aus einem feuerfesten Material hergestellt ist, welches zugleich das Füllrohr 5 an seinem in das Behandlungsgefäß 3 hineinragenden Abschnitt ummantelt. Die Tauchbirne 1 weist in ihrem Inneren eine Reaktionskammer 7 auf, welche über Kontaktöffnungen 8 mit der Metallschmelze 2 in Verbindung steht. Zur Befestigung der Tauchbirne 1 am Füllrohr 5 dient ein Flansch 9 am tauchbirnenseitigen Ende des Füllrohres 5, der in die feuerfeste Masse 6 eingebettet ist. Sowohl zwischen dem Füllrohr 5 und der feuerfesten Masse 6 als auch zwischen dem Flansch 9 sowie dem Befestigungsflansch 10 am Schutzdeckel 4 und der feuerfesten Masse 6 ist.ein Dehnungsspalt 11 angeodnet. Mit dem Flansch 9 steht eine korbartige Metallarmierung 12 in Verbindung, die in die feuerfeste Masse 6 eingesetzt die Reaktionskammer 7 umgibt. Dabei sind zwischen der Metallarmierung 12 md der feuerfesten Masse 6 Dehnfugen 13 vorgesehen. Außerdem wird der feuerfesten Masse 6 eine erhöhte Stabilität dadurch verliehen, daß in die Masse 6 eine Faserverstärkung 14,.die aus austenitischen Edelstahlabschnitten besteht, gleichmäßig eingemischt ist. Das Füllrohr 5 wird zur Abdichtung der Reaktionskammer 7 während der Behandlung durch einen Verschlußstopfen 15 abgedichtet.In the figure, 1 denotes an immersion bulb, which is used for introducing strongly reacting additives into a molten metal 2. The molten metal 2 is thereby received by a Behandlun g s-tube 3, which is closed by a protective cover. 4 A filler tube 5 is guided through the protective cover 4 and receives the hanging immersion bulb 1 at one end, the immersion bulb 1 being made of a refractory material which at the same time encases the filler tube 5 at its section protruding into the treatment vessel 3. The immersion bulb 1 has a reaction chamber 7 in its interior, which is connected to the molten metal 2 via contact openings 8. A flange 9, which is embedded in the refractory mass 6, at the end of the filling tube 5 on the diving bulb side serves to fasten the diving bulb 1 to the filling tube 5. Both between the filling pipe 5 and the refractory mass 6 and between the flange 9 and the fastening flange 10 on the protective cover 4 and the refractory mass 6. With the flange 9 there is a basket-like metal reinforcement 12 which, inserted into the refractory mass 6, surrounds the reaction chamber 7. 6 expansion joints 13 are provided between the metal reinforcement 12 md of the refractory mass. In addition, the refractory mass 6 is given increased stability in that a fiber reinforcement 14, which consists of austenitic stainless steel sections, is uniformly mixed into the mass 6. The filling tube 5 is sealed by a sealing plug 15 to seal the reaction chamber 7 during the treatment.

Wie aus der Zeichnung hervorgeht, kann der Tauchbirnen-Füllrohreinheit 1, 5 erfindungsgemäß eine hohe Stabilität verliehen werden, so daß Zerstörungen der Vorrichtung infolge einer hohen Temperaturentwicklung und hoher Gasdrücke während der Reaktion grundsätzlich vermieden werden.As can be seen from the drawing, the dip tube filling tube unit 1, 5 can be given high stability according to the invention, so that damage to the device due to high temperature development and high gas pressures during the reaction can be avoided in principle.

Ein Bruch im Bereich der Befestigung zwischen der Tauchbirne 1 und dem Füllrohr 5 kann daher ausgeschlossen werden, weil der Flansch 9 als sicheres Befestigungsmittel dient und die Rißbildung, die bisher aufgrund der unterschiedlichen Dehnung von Füllrohr 5 und feuerfester Masse 6 auftrat, durch die Dehnungsspalte 11 völlig eliminiert wird. Gleiches gilt für die Metallarmierung 12, bei der aufgrund der vorhandenen Dehnfugen 13 auch eine temperaturbedingte Dehnung ermöglicht wird. Die Stabilität und Elastizität der feuerfesten Masse 6 sowohl im Bereich der Tauchbirne 1 als auch im Bereich der Ummantelung des Füllrohres 5 kann mit Hilfe der Faserverstärkung 14 erheblich verbessert werden.A break in the area of the attachment between the immersion bulb 1 and the filling tube 5 can therefore be ruled out because the flange 9 serves as a secure fastening means and the cracking that previously occurred due to the different expansion of the filling tube 5 and the refractory mass 6 due to the expansion gaps 11 is completely eliminated. The same applies to the metal reinforcement 12, in which, due to the existing expansion joints 13, a temperature-related expansion is also made possible. The stability and elasticity of the refractory mass 6 both in the area of the immersion bulb 1 and in the area of the casing of the filler tube 5 can be considerably improved with the aid of the fiber reinforcement 14.

Claims (3)

1. Vorrichtung zum Einführen stark reagierender Zusätze in eine Metallschmelze, insbesondere zum Einführen von Magnesium in eine Eisenschmelze zur Herstellung von Gußeisen mit Kugelgraphit, bestehend aus einem die Metallschmelze aufnehmenden Behandlungsgefäß, in das eine über ein Füllrohr an einem Schutzdeckel hängend befestigte Tauchbirne einführbar ist, die in ihrem Inneren eine Reaktionskammer aufweist, welche über das Füllrohr mit Zusätzen beschickbar ist und über Kontaktöffnungen mit der Metallschmelze in Verbindung steht, wobei die Tauchbirne aus einem feuerfesten Material besteht, welches das Füllrohr in seinem in das Behandlungsgefäß hineinragenden Abschnitt umgibt, dadurch gekennzeichnet, daß das feuerfeste Material aus einer Masse (6) mit einer Faserverstärkung (14) besteht, daß an dem in den Reaktionsraum (7) der Tauchbirne (1) hineinragendem Ende des Füllrohres (5) ein Flansch (9) vorgesehen ist und daß zwischen dem feuerfesten Material einerseits und dem Füllrohr (5), dem Flansch (9) und dem Schutzdeckel (4) andererseits jeweils ein Dehnungsspalt (11) vorgesehen ist.1. Apparatus for introducing strongly reacting additives into a molten metal, in particular for introducing magnesium into an molten iron for producing cast iron with spheroidal graphite, consisting of a treatment vessel which receives the molten metal, into which a dip bulb suspended from a protective cover via a filling tube can be inserted, which has in its interior a reaction chamber which can be charged with additives via the filler tube and is connected to the molten metal via contact openings, the immersion bulb consisting of a refractory material which surrounds the filler tube in its section protruding into the treatment vessel, characterized in that that the refractory material consists of a mass (6) with a fiber reinforcement (14) that a flange (9) is provided on the end of the filling tube (5) projecting into the reaction chamber (7) of the immersion bulb (1) and that between the refractory material on the one hand and the filling tube (5), the Flange (9) and the protective cover (4) on the other hand, an expansion gap (11) is provided. 2. Vorrichtung zum Einführen stark reagierender Zusätze in eine Metallschmelze nach Anspruch 1, bei dem in das feuerfeste Material der Tauchbirne eine korbartige Metallarmierung eingesetzt.ist, dadurch gekennzeichnet, daß zwischen der Metallarmierung (12) und dem feuerfesten Material Dehnfugen (13) vorgesehen sind.2. Device for introducing strongly reacting additives into a molten metal according to claim 1, in which a basket-like metal reinforcement is inserted into the refractory material of the immersion bulb, characterized in that expansion joints (13) are provided between the metal reinforcement (12) and the refractory material . 3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das feuerfeste Material eine Faserverstärkung (14) aus gleichmäßig in die Masse (6) eingemischten austenitischen Edelstahlabschnitten aufweist.3. Device according to one of claims 1 or 2 , characterized in that the refractory material has a fiber reinforcement (14) from austenitic stainless steel sections mixed evenly into the mass (6).
EP81104193A 1980-06-10 1981-06-02 Apparatus for introducing highly reactive substances to a molten-metal bath Expired EP0041680B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104193T ATE6433T1 (en) 1980-06-10 1981-06-02 DEVICE FOR INTRODUCING STRONGLY REACTIVE ADDITIVES INTO A METAL METAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803021707 DE3021707A1 (en) 1980-06-10 1980-06-10 DEVICE FOR IMPORTING HIGHLY REACTIVE ADDITIVES INTO A METAL MELT
DE3021707 1980-06-10

Publications (2)

Publication Number Publication Date
EP0041680A1 true EP0041680A1 (en) 1981-12-16
EP0041680B1 EP0041680B1 (en) 1984-02-29

Family

ID=6104239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104193A Expired EP0041680B1 (en) 1980-06-10 1981-06-02 Apparatus for introducing highly reactive substances to a molten-metal bath

Country Status (7)

Country Link
US (1) US4447046A (en)
EP (1) EP0041680B1 (en)
JP (1) JPS5713112A (en)
AT (1) ATE6433T1 (en)
CH (1) CH646196A5 (en)
DE (2) DE3021707A1 (en)
SU (1) SU1056910A3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309781A1 (en) * 1987-09-24 1989-04-05 Zavody Tezkeho Strojirenstvi Kombinat Kombinatni Podnik Process for adding fusibles and evaporable additives to molten iron alloys, and installation for its realization
FR2654961A1 (en) * 1989-11-28 1991-05-31 Fischer Ag Georg MAGNESIUM PROCESSING METHOD AND DEVICE FOR IMPLEMENTING SAID METHOD.
EP0446152A1 (en) * 1990-03-07 1991-09-11 Aluminium Pechiney Package for introducing light metal into a molten aluminium alloy
RU2127320C1 (en) * 1989-11-28 1999-03-10 Георг Фишер АГ Method of melt treatment with magnesium

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1278916B1 (en) * 1995-01-05 1997-11-28 Benet Di Bennati Ettore METHOD AND EQUIPMENT FOR THE TREATMENT OF METAL BATHS WITH LOW OR HIGH GAS DEVELOPMENT REACTION MATERIALS
WO2012113089A1 (en) 2011-02-26 2012-08-30 Visplay International Ag Device for displaying articles
CN111390126A (en) * 2020-05-25 2020-07-10 河北新兴铸管有限公司 a spheroidizing device
CN112404372B (en) * 2020-11-20 2021-12-14 国铭铸管股份有限公司 Speed-controlled rotational flow spheroidizing method for nodular cast iron in ladle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208960A1 (en) * 1972-02-25 1973-08-30 Kloeckner Humboldt Deutz Ag DEVICE FOR IMPLEMENTING HIGHLY REACTIVE ADDITIVES INTO A MELT, IN PARTICULAR FOR IMPLEMENTING MAGNESIUM INTO A MELT
FR2189525A1 (en) * 1972-06-21 1974-01-25 Foseco Int
DE2331783A1 (en) * 1973-06-22 1975-01-23 Kloeckner Humboldt Deutz Ag Magnesium inoculation bulb for cast iron melt - has reaction chamber enclosing magnesium offset against filler opening
DE2558072A1 (en) * 1975-12-22 1977-07-07 Labate Michael D Submergible consumable container - for introducing material into a ladle of molten steel at a constant predetermined rate
EP0003037A1 (en) * 1978-01-06 1979-07-25 Georg Fischer Aktiengesellschaft Method, apparatus and agent for the treatment of molten ferrous metals with a pure alkali or alkaline-earth metal in solid form

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208960A1 (en) * 1972-02-25 1973-08-30 Kloeckner Humboldt Deutz Ag DEVICE FOR IMPLEMENTING HIGHLY REACTIVE ADDITIVES INTO A MELT, IN PARTICULAR FOR IMPLEMENTING MAGNESIUM INTO A MELT
FR2189525A1 (en) * 1972-06-21 1974-01-25 Foseco Int
DE2331783A1 (en) * 1973-06-22 1975-01-23 Kloeckner Humboldt Deutz Ag Magnesium inoculation bulb for cast iron melt - has reaction chamber enclosing magnesium offset against filler opening
DE2558072A1 (en) * 1975-12-22 1977-07-07 Labate Michael D Submergible consumable container - for introducing material into a ladle of molten steel at a constant predetermined rate
EP0003037A1 (en) * 1978-01-06 1979-07-25 Georg Fischer Aktiengesellschaft Method, apparatus and agent for the treatment of molten ferrous metals with a pure alkali or alkaline-earth metal in solid form

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309781A1 (en) * 1987-09-24 1989-04-05 Zavody Tezkeho Strojirenstvi Kombinat Kombinatni Podnik Process for adding fusibles and evaporable additives to molten iron alloys, and installation for its realization
FR2654961A1 (en) * 1989-11-28 1991-05-31 Fischer Ag Georg MAGNESIUM PROCESSING METHOD AND DEVICE FOR IMPLEMENTING SAID METHOD.
GB2239029A (en) * 1989-11-28 1991-06-19 Fischer Ag Georg Treating metallic melt with magnesium
GB2239029B (en) * 1989-11-28 1994-06-15 Fischer Ag Georg Magnesium treatment process and apparatus
RU2127320C1 (en) * 1989-11-28 1999-03-10 Георг Фишер АГ Method of melt treatment with magnesium
EP0446152A1 (en) * 1990-03-07 1991-09-11 Aluminium Pechiney Package for introducing light metal into a molten aluminium alloy
FR2659354A1 (en) * 1990-03-07 1991-09-13 Pechiney Aluminium PACKAGING FOR THE INTRODUCTION OF LIGHT METAL IN AN ALLOY ALLOY WITH A LIQUID CONDITION.

Also Published As

Publication number Publication date
SU1056910A3 (en) 1983-11-23
CH646196A5 (en) 1984-11-15
JPS6362565B2 (en) 1988-12-02
US4447046A (en) 1984-05-08
JPS5713112A (en) 1982-01-23
DE3021707A1 (en) 1981-12-17
DE3162420D1 (en) 1984-04-05
ATE6433T1 (en) 1984-03-15
EP0041680B1 (en) 1984-02-29

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