DE3003046C2 - Refractory ceramic mass - Google Patents

Refractory ceramic mass

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Publication number
DE3003046C2
DE3003046C2 DE3003046A DE3003046A DE3003046C2 DE 3003046 C2 DE3003046 C2 DE 3003046C2 DE 3003046 A DE3003046 A DE 3003046A DE 3003046 A DE3003046 A DE 3003046A DE 3003046 C2 DE3003046 C2 DE 3003046C2
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DE
Germany
Prior art keywords
refractory
steel
mass
ceramic mass
liquid steel
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.)
Expired
Application number
DE3003046A
Other languages
German (de)
Other versions
DE3003046A1 (en
Inventor
Gerd Dipl.-Ing. 5465 Erpel Diederich
Hans Ing.(grad.) 4100 Duisburg Gruner
Bernd Ing.(grad.) 5463 Unkel Meyer
Fritz-Peter Dr.-Ing. 4600 Dortmund Pleschiutschnigg
Frithjof Dipl.-Mineral. Dr. 5451 Leutesdorf Schäuffele
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Priority to DE3003046A priority Critical patent/DE3003046C2/en
Priority to FR8100044A priority patent/FR2474481A1/en
Priority to GB8100458A priority patent/GB2067985B/en
Priority to JP890881A priority patent/JPS56109868A/en
Publication of DE3003046A1 publication Critical patent/DE3003046A1/en
Application granted granted Critical
Publication of DE3003046C2 publication Critical patent/DE3003046C2/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/52—Manufacturing or repairing thereof
    • B22D41/54—Manufacturing or repairing thereof characterised by the materials used therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/482—Refractories from grain sized mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0087—Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
    • C04B2111/00887—Ferrous metallurgy
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/386—Boron nitrides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium

Description

Die Erfindung betrifft eine feuerfeste keramische Masse gemäß dem Oberbegriff des Patentanspruchs.The invention relates to a refractory ceramic mass according to the preamble of the patent claim.

Bei der Herstellung von Al-beruhigten Stählen tritt nach der Desoxidation und Legierung des Rohstahls Tonerde als feste, oxidische Phase im flüssigen Stahl auf. Beim Stranggießen von Stahl befindet sich zwischen Verteiler und Kokille ein Tauchausguß aus feuerfestem Material. Beim Durchströmen des Tauchausgusses scheidet sich ein Teil der im flüssigen Stahl befindlichen Tonerde an dem Tauchausguß ab; es bilden sich große Tonerdeagglomerate, die von Zeit zu Zeit vom fließenden Stahl mitgerissen werden und bei der Erstarrung des Stahls eingeschlossen werden.In the production of Al-killed steels, deoxidation and alloying of the crude steel occurs Alumina as a solid, oxidic phase in liquid steel. In the continuous casting of steel there is between Distributor and mold an immersion nozzle made of refractory material. When flowing through the immersion nozzle a part of the alumina in the liquid steel is deposited on the immersion nozzle; large ones are formed Alumina agglomerates, which from time to time are carried away by the flowing steel and in the Solidification of the steel are included.

Bisher bekannte Tauchausgüsse setzen sich aus feuerfesten Massen zusammen, die aus einem oder mehreren feuerfesten Oxiden (AI2O3, S1O2, ZrO? u. a.), Kohlenstoff (Graphit, Koks, Ruß) und Bindemittel bestehen. Bekannt ist auch eine feuerfeste Masse, die Quarz und Ferrosilizium oder Kalziumsilizium enthält (DE-PS 8 17 271). Diese Zusammensetzungen sind nicht geeignet, die Ablagerung von Tonerdeteüchen aus dem Stahl zu verhindern.So far known immersion nozzles are composed of refractory masses that consist of one or several refractory oxides (AI2O3, S1O2, ZrO? etc.), Carbon (graphite, coke, soot) and binders are made. Also known is a refractory mass that Contains quartz and ferrous silicon or calcium silicon (DE-PS 8 17 271). These compositions are not suitable to prevent the deposition of clay particles from the steel.

Der Erfindung liegt die Aufgabe zugrunde, eine feuerfeste keramische Masse für die Herstellung von Tauchausgüssen oder anderen mit flüssigem Stahl in Berührung stehenden Formkörpern zu schaffen, welche es ermöglicht, eine Ablagerung der zur Agglomeration neigenden, im flüssigen Stahl vorhandenen oxidischen Suspensionen, insbesondere Tonerde, an der inneren Tauchausgußwand oder an anderen mit dem flüssigen Stahl in Berührung stehenden Formkörpern zu verhindern. The invention is based on the object of a refractory ceramic mass for the production of To create immersion nozzles or other molded bodies in contact with liquid steel, which it enables a deposition of the oxidic substances which tend to agglomeration and are present in the liquid steel Suspensions, especially clay, on the inner wall of the immersion nozzle or on others with the liquid Prevent molded bodies in contact with steel.

Zur Lösung dieser Aufgabe wird erfindungsgemäß ein Aufbau der Feuerfestmasse vorgeschlagen, wie er in dem Patentanspruch beschrieben ist. Der Vorteil der erfindungsgemäßen Feuerfestmasse ist, daß die im Stahl vorhandenen festen oxidischen Suspensionen (z. B. Tonerde) im Phasenübergang flüssiger Stahl-Feuerfestkörper bei Kontakt mit der Feuerfestw.ind bzw. Teilen dieser Feuerfestwand eine Schmelzpunkterniedrigung erfahren.To achieve this object, a structure of the refractory material is proposed according to the invention, as shown in FIG the claim is described. The advantage of the refractory composition according to the invention is that in the steel existing solid oxidic suspensions (e.g. alumina) in the phase transition of liquid steel-refractory bodies If there is contact with the refractory wall or parts of this refractory wall, a lowering of the melting point occurs Experienced.

Diese Schmelzpunkterniedrigung führt dazu, daß das primär feste Tonerdeteilchen (ca. 1 bis 30 mm im Durchmesser) nach Kontakt mit der Feuerfestwand flüssig wird und so nicht haften bleibt.This lowering of the melting point leads to the fact that the primarily solid alumina particle (approx. 1 to 30 mm in Diameter) becomes liquid after contact with the refractory wall and thus does not stick.

Die im Feuerfestkörper auf die Suspension wirkende Substanz bildet mit dieser eine oxidische Schmelze, d. h., der Schmelzpunkt dieser Schlacke liegt unterhalb der Betriebstemperatur des Stahls. In den beigefügten Beispielen sind mögliche Ausführungsformen von erfindungsgemäßen Feuerfestmassen aufgeführt Beispiel 1 besteht aus Korund, Graphit Kalziumsilizium und Binder. Das in der Masse befindliche Kalziumsilizium ist metallisch stabil. Dieser stabile Zustand wird einmal durch die im Vergleich zur Stahltemperatur relativ niedrige Temperatur der Feuerfestmasse und durch die Gegenwart des Kohlenstoffes geschaffenen reduzierenden Bedingungen erreicht
Diese reduzierenden Bedingungen werden an den Phasengrenzen (Feuerfestmasse — Luft; Feuerfestmasse — flüssiger Stahl) zu oxidierenden umgewandelt Einmal wird an der Phasengrer.ze Luft — Feuerfest nach allmählichem Kohlenstoffabbrand der metallische Bestandteil oxidiert und bildet eine oxidische Mischpha-The substance acting on the suspension in the refractory body forms an oxidic melt with it, ie the melting point of this slag is below the operating temperature of the steel. In the attached examples, possible embodiments of refractory compositions according to the invention are listed. Example 1 consists of corundum, graphite, calcium silicon and binder. The calcium silicon found in the mass is metallically stable. This stable state is achieved on the one hand by the relatively low temperature of the refractory mass compared to the steel temperature and by the presence of the carbon created reducing conditions
These reducing conditions are converted to oxidizing at the phase boundaries (refractory mass - air; refractory mass - liquid steel).

is se mit der Grundmasse. Diese Mischphase unterliegt zwar einer Schmelzpunkterniedrigung, jedoch keiner erodierenden Kraft, womit ein Abtragen und damit ein Verschleiß nicht eintritt.is se with the basic mass. This mixed phase is subject to a lowering of the melting point, but no erosive force, which means erosion and thus a Wear does not occur.

Bei der Phasengrenze Feuerfest — flüssiger Stahl beginnt nach der Kohlenstoffverbrennung eine Oxidation des metallischen Bestandteils mit Al-beruhigtem Stahl.At the phase boundary between refractory and liquid steel, oxidation begins after carbon has been burned of the metallic component with Al-killed steel.

Diese Oxidation kann stattfinden, da Kalzium bei A'-beruhigtem Stahl noch eine desoxidierende Wirkung besitztThis oxidation can take place because calcium still has a deoxidizing effect on A'-killed steel owns

Das sich bildende Kalziumsilizium-Mischoxid wirkt auf Tonerde bei Phasenübergang Schmelzgut erniedrigend und führt zu einem an der Phasengrenze flüssigen Mischoxid (Schlackenfilm).The calcium silicon mixed oxide that forms has a lowering effect on alumina during the phase transition of the molten material and leads to a mixed oxide (slag film) that is liquid at the phase boundary.

Dieser Schlackenfilm wird nun über die erodierende Wirkung des fließenden Stahls in das Bad der Kokille getragen. Hier liegt die Schlacke in Kugelform vor und kommt dann zur Abscheidung.This slag film is now over the eroding effect of the flowing steel in the bath of the mold carried. Here the slag is in the form of a sphere and is then deposited.

Dieser erfindungsgemäße Vorgang führt zu einem gewollten inneren Verschleiß der Feuerfestwand und vermeidet eine Ablagerung von Tonerde an dieser Wand. Die Wanddicke sowie die Zusammensetzung der Feuerfestmasse müssen in Relation zur beabsichtigten Gießzeit stehen.This inventive process leads to a desired internal wear of the refractory wall and avoids a build-up of clay on this wall. The wall thickness as well as the composition of the Refractories must be in relation to the intended casting time.

Ein weiteres Anwendungsgebiet (siehe Beispiel 2) kann BN sein, das unter oxidierenden Bedingungen nicht stabil ist und B2O3 bildet und für Tonerde (als Suspension im Stahl vorliegend) ein Verflüssiger ist und ähnliche Wirkung — wie im Beispiel 1 angeführt — zeigt.Another field of application (see example 2) can be BN, which is used under oxidizing conditions is not stable and forms B2O3 and is a liquefier for alumina (present as a suspension in steel) and similar effect - as listed in Example 1 - shows.

Weiterhin kann der Erosion im Schlackenbereich durch eine bereits bekannte Massenzusammensetzung mit Zirkonoxid entgegengewirkt werden (Beispiel 3).
Auch ist es möglich, daß Tonerde durch Quarzglas ersetzt wird (Beispiel 4 und 5).Furthermore, the erosion in the slag area can be counteracted by an already known mass composition with zirconium oxide (Example 3).
It is also possible to replace alumina with quartz glass (Examples 4 and 5).

Beispiel 1: 60% KorundExample 1: 60% corundum

10% Kalziumsilizium
25% Graphit
5% Binder10% calcium silicon
25% graphite
5% binder

Beispiel 2: 60% KorundExample 2: 60% corundum

10% Bornitrid10% boron nitride

25% Graphit25% graphite

5% Binder5% binder

Beispiel 3:Example 3:

60% Zirkonoxid
25% Graphit
10% Ferrosilizium
50/0 Binder60% zirconium oxide
25% graphite
10% ferrosilicon
50/0 binder

Beispiel 4: 60% QuarzglasExample 4: 60% quartz glass

10% Kalziumsilizium10% calcium silicon

25% Graphit 5% Binder25% graphite 5% binder

Beispiel 5: 60% QuarzglasExample 5: 60% quartz glass

10% Bornitrid10% boron nitride

25% Graphit25% graphite

5% Binder5% binder

Claims (1)

Patentanspruch:Claim: Feuerfeste, eine Ablagerung fester im flüssigen Stahl enthaltener oxidischer Suspensionen verhindernde keramische Masse auf der Basis Aluminiumoxid oder Zirkonoxid oder Siliziumoxid, Kohlenstoff und Bindemitteln zur Herstellung von Tauchausgüssen oder anderen mit flüssigem Stahl in Berührung stehenden Formkörpern, dadurch gekennzeichnet, daß die Masse 5 bis 15 Gewichtsprozent Kalziumsilizium (met) und/oder Ferrosilizium (met) und/oder Bornitrid enthältRefractory, preventing the build-up of solid oxidic suspensions contained in liquid steel ceramic mass based on aluminum oxide or zirconium oxide or silicon oxide, carbon and binders for making immersion nozzles or others in contact with liquid steel standing moldings, characterized in that the mass is 5 to 15 percent by weight Contains calcium silicon (met) and / or ferrosilicon (met) and / or boron nitride
DE3003046A 1980-01-25 1980-01-25 Refractory ceramic mass Expired DE3003046C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE3003046A DE3003046C2 (en) 1980-01-25 1980-01-25 Refractory ceramic mass
FR8100044A FR2474481A1 (en) 1980-01-25 1981-01-05 REFRACTORY CERAMIC MIXTURE
GB8100458A GB2067985B (en) 1980-01-25 1981-01-08 Refractory materials
JP890881A JPS56109868A (en) 1980-01-25 1981-01-23 Refractory ceramic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3003046A DE3003046C2 (en) 1980-01-25 1980-01-25 Refractory ceramic mass

Publications (2)

Publication Number Publication Date
DE3003046A1 DE3003046A1 (en) 1981-07-30
DE3003046C2 true DE3003046C2 (en) 1982-01-28

Family

ID=6093148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3003046A Expired DE3003046C2 (en) 1980-01-25 1980-01-25 Refractory ceramic mass

Country Status (4)

Country Link
JP (1) JPS56109868A (en)
DE (1) DE3003046C2 (en)
FR (1) FR2474481A1 (en)
GB (1) GB2067985B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245672A1 (en) * 1981-12-10 1983-07-07 Shinagawa Refractories Co., Ltd., Tokyo SUBMERSIBLE NOZZLE FOR CONTINUOUS CASTING
DE3700895A1 (en) * 1987-01-14 1988-07-28 Intracon Handel Closure for bottom tapping holes, and closing material suitable for this purpose

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895642A (en) * 1981-11-28 1983-06-07 黒崎窯業株式会社 Calcium alloy-containing casting nozzle
DE3439954A1 (en) * 1984-11-02 1986-05-07 Didier-Werke Ag, 6200 Wiesbaden FIREPROOF WEARING PART FOR POURING LIQUID MELTING
JPS6246951A (en) * 1985-08-22 1987-02-28 黒崎窯業株式会社 Manufacture of plate refractories for sliding nozzle
DE3627337A1 (en) * 1986-08-12 1988-02-25 Didier Werke Ag SUBMERSIBLE SPOUT AND METHOD FOR THE PRODUCTION THEREOF
US4909484A (en) * 1988-08-02 1990-03-20 Dresser Industries, Inc. Prevention of slag buildup in steel ladles
DE3827424A1 (en) * 1988-08-12 1990-02-15 Didier Werke Ag SUBMERSIBLE SPOUTS FOR METAL MELTING
US5171495A (en) * 1988-08-12 1992-12-15 Didier-Werke Ag Immersion nozzles for metal melts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE817271C (en) * 1950-08-20 1951-10-15 Friedrich Dr-Ing Badenheuer Process for the manufacture of ovens and oven components
GB1058461A (en) * 1962-10-02 1967-02-08 Int Minerals & Chem Corp Refractory and cupola operation
DE2441494C3 (en) * 1974-08-29 1978-04-20 Mannesmann Ag, 4000 Duesseldorf Refractory ceramic mass
JPS5227405A (en) * 1975-08-12 1977-03-01 Shinagawa Refractories Co Lining refractories for ingot iron transfer furnace or desulfurization treatment furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245672A1 (en) * 1981-12-10 1983-07-07 Shinagawa Refractories Co., Ltd., Tokyo SUBMERSIBLE NOZZLE FOR CONTINUOUS CASTING
DE3700895A1 (en) * 1987-01-14 1988-07-28 Intracon Handel Closure for bottom tapping holes, and closing material suitable for this purpose

Also Published As

Publication number Publication date
JPS56109868A (en) 1981-08-31
GB2067985A (en) 1981-08-05
GB2067985B (en) 1983-08-24
DE3003046A1 (en) 1981-07-30
FR2474481A1 (en) 1981-07-31

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