DE3008251B1 - Refractory material for molten steel - Google Patents

Refractory material for molten steel

Info

Publication number
DE3008251B1
DE3008251B1 DE19803008251 DE3008251A DE3008251B1 DE 3008251 B1 DE3008251 B1 DE 3008251B1 DE 19803008251 DE19803008251 DE 19803008251 DE 3008251 A DE3008251 A DE 3008251A DE 3008251 B1 DE3008251 B1 DE 3008251B1
Authority
DE
Germany
Prior art keywords
content
refractory material
steel
mgo
cao
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
DE19803008251
Other languages
German (de)
Other versions
DE3008251C2 (en
Inventor
Gerd Dipl.-Ing. 5456 Erpel Diederich
Ing.(grad.) Hans 4100 Duisburg Gruner
Ing.(grad.) Eberhard 5462 Bad Hönningen Heimann
Fritz-Peter Dr.-Ing. 4600 Dortmund Pleschiutschnigg
Dr.rer.nat. Frithjof 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 DE19803008251 priority Critical patent/DE3008251C2/en
Priority to AT594180A priority patent/AT376960B/en
Priority to FR8103002A priority patent/FR2477136A1/en
Priority to BE0/203858A priority patent/BE887607A/en
Priority to JP56027565A priority patent/JPS5914423B2/en
Priority to CA000371886A priority patent/CA1150323A/en
Priority to GB8106532A priority patent/GB2070582B/en
Publication of DE3008251B1 publication Critical patent/DE3008251B1/en
Application granted granted Critical
Publication of DE3008251C2 publication Critical patent/DE3008251C2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
    • B22D35/045—Runner base plates for bottom casting ingots
    • 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
    • C04B35/16—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 silicates other than clay
    • C04B35/18—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 silicates other than clay rich in aluminium oxide
    • C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Mold Materials And Core Materials (AREA)
  • Ceramic Products (AREA)

Description

Die Erfindung betrifft ein Feuerfestmaterial für das Vergießen von Stahl, wie z.H. Kanalsteine. Hierfür wurden bisher hochwertige, abriebfeste Sdianioiiestei nc benutzt, um den Gehalt an nichtmetallischen, endogenen Einschlüssen im Stahl möglichst gering zn halten. Die recht groben, aus dem ff-Mateiial stammenden Einschlüsse sind häufig die Ursache von Fehlern im Stahl, die dazu führen, daß große Teile einer Schmelze verworfen oder qualitätsmäßig abgewertet werden müssen. Insbesondere beim Vergießen aliiminiuniberu higter Stahlqualitäten treten als weitere Fehlet Ursachen Einschlüsse von 'Ionerdeteilchen als Restpiodukte der Desoxydationsbehandlung auf. Diese Einschlüsse sind besonders unangenehm, da sie meist in größeren Nestern im Stahl enthalten sind. Dies ist darauf zurückzuführen, daß die feinen AI..Oj-1'arlikel sich im Kanalsystem zunächst aus dem Stahl abscheiden dort koagulieren und dann zu einem Zeitpunkt während ties Gießens vom durchfließenden Stahl mitgerissen werden und keine Gelegenheit mehr haben, sich aus dem Block abzuscheiden.The invention relates to a refractory material for casting steel, such as z.H. Canal stones. Therefor were previously high-quality, abrasion-resistant sdianioiiestei nc used to keep the content of non-metallic, endogenous inclusions in steel as low as possible keep. The coarse ones, derived from the ff material Inclusions are often the cause of defects in steel, which lead to large parts of a melt must be discarded or devalued in terms of quality. Especially when potting aliiminiuniberu Higher steel qualities occur as further causes inclusions of ion earth particles as residual products of the absence Deoxidation treatment on. These inclusions are particularly uncomfortable as they are mostly in larger ones Nests are contained in the steel. This is due to the fact that the fine AI..Oj-1'arlikel are in the Canal system first from the steel deposit there and then coagulate at a time during ties Casting will be carried away by the steel flowing through and no longer have the opportunity to get out of the block to be deposited.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu beseitigen, d. h. ein Gußprodukt mit erhöhtem Reinheitsgrad zu erzeugen.The invention has for its object to overcome these disadvantages, i. H. a cast product with to produce an increased degree of purity.

Die Aufgabe wird erfindungsgemäß durch ein in den Ansprüchen angegebenes Feuerfestinaterial gelöst.The object is achieved according to the invention by a refractory material specified in the claims.

Durch die Zusammensetzung des erfindungsgemäßen Feuerfestmaterials wird nun bewußt darauf hingearbeitet und erreicht, daß unter dem Temperatureinfluß der Stahlschmelze und den im Stahl mitgeführten Verunrei nigungen eine verstärkte Auflösung des Feuerfestmate rials erfolgt, überraschenderweise ist festgestellt worden, daß die gelösten Bestandteile des Feuerfestina terials zusammen mit ilen im Stahl enthaltenen Desoxydationsprodukten über ilen gesamten Gießpio zeß eine derart flüssige .Schlackenphase an der Grenzfläche Feiierfestmaterial — Stahl bildet, dir geeignet ist. die Desoxydaüonsprodukte zu lösen und in eine leicht aus dem Stahl ausscheidungsl'ilhige Form und Konsistenz zu überführen und damit den Reinheitsgrad des Stahles zu verbessern.The composition of the refractory material according to the invention is now consciously working towards and achieved that under the influence of temperature Molten steel and the impurities carried along in the steel result in an increased dissolution of the refractory material rials takes place, surprisingly it has been found that the dissolved constituents of the refractory terials together with the deoxidation products contained in the steel over the entire casting area Such a liquid slag phase forms at the interface between solid material and steel suitable is. to dissolve the deoxidation products and in a shape easily precipitable from the steel and To transfer consistency and thus to improve the purity of the steel.

Nachstehend werden zwei Beispiele für die Zusaiii mensetziing eines erfindungsgeinäßen Feuerfestmate fiais angegeben.Below are two examples of the composition of a refractory material according to the invention fiais stated.

BeBe Si(),Si (), SiO,SiO, i s ρ i e I Ii s ρ i e I I ΛΙ,Ο,ΛΙ, Ο, AU) ιAU) ι b7,0"/.ib7.0 "/. i CaOCaO CaOCaO 22,0»/.)22.0 »/.) MgOMgO MgOMgO 0.4»/.)0.4 »/.) Rest: BegleitoxideRemainder: accompanying oxides Rest: iicgleitoxideRemainder: iic slip oxides 3,0%3.0% ErweichungspunktSoftening point ErweichungspunktSoftening point SchmelzpunktMelting point SchmelzpunktMelting point 1420 C1420 C DruckerweichungPressure softening DruckerweichungPressure softening 1480 C1480 C Γ05 1185 CΓ05 1185 C BeBe 15 1275 C15 1275 C i s ρ i e I 2i s ρ i e I 2 bl,0%bl, 0% 2b,0%2b, 0% b, 3%b, 3% 0,1%0.1% 1 380 C1,380 C 14/0 C14/0 C 105 Il 30 (105 Il 30 ( 15 1225 C15 1225 C

ORIGINAL INSPECTEDORIGINAL INSPECTED

Claims (3)

Patentansprüche:Patent claims: 1. Feuerfesimaterial für im Unterguli /u vergießende Stahlschmcl/en, insbesondere Kanal und Trichterrohrsteine, mit einem AbOj-Gehalt von 20 bis 32%, einem SiOj-Gehalt von 60 bis 70% und einem Gehalt an Begleitoxiden, wie'fiO_>, f-"e..C)j und Na/) von <" 10% sowie CaC) und MgO, d a d ii rc h gekennzeichnet, daß der Gehalt an CaO und MgO 1,5 bis 10% beträgt.1. Refractory material for shedding in the Unterguli / u Steel jewelry, especially channel and Funnel pipe stones, with an AbOj content of 20 to 32%, an SiOj content of 60 to 70% and a content of accompanying oxides, such as'fiO_>, f- "e..C) j and Na /) of <"10% as well as CaC) and MgO, d a d ii rc h characterized in that the content of CaO and MgO is 1.5 to 10%. 2. Feiierfestmaterial nach Anspruch I, dadurch gekennzeichnet,-da« der Gehalt an CaO und/oder MgO durch feinkörnige, basische Hochofenschlacke und/oder durch Beimischung von Mineralien, wie Olivin, Magnesit, Diopsid, Hornblenden oder WoIIastonit gebildet ist.2. Celebration material according to claim I, characterized in that the CaO and / or MgO content is formed by fine-grained, basic blast furnace slag and / or by the addition of minerals such as olivine, magnesite, diopside, horn blends or woIIastonite. 3. Feuerfestinaterial nach Anspruch 1, dadurch gekennzeichnet, daß die Korngröße tier Beimischung < 100 μηι beträgt.3. Refractory material according to claim 1, characterized in that the grain size animal admixture <100 μm.
DE19803008251 1980-02-29 1980-02-29 Refractory material for molten steel Expired DE3008251C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19803008251 DE3008251C2 (en) 1980-02-29 1980-02-29 Refractory material for molten steel
AT594180A AT376960B (en) 1980-02-29 1980-12-04 FIRE RESISTANT FOR THE PRODUCTION OF STONES OR THE LIKE.
FR8103002A FR2477136A1 (en) 1980-02-29 1981-02-16 REFRACTORY MATERIAL FOR MOLTEN STEEL MASS
BE0/203858A BE887607A (en) 1980-02-29 1981-02-20 REFRACTORY MATERIAL FOR MOLTEN STEEL MASS
JP56027565A JPS5914423B2 (en) 1980-02-29 1981-02-26 Refractory material used for molten steel
CA000371886A CA1150323A (en) 1980-02-29 1981-02-27 Fireproof material for steel-casting foundry equipment
GB8106532A GB2070582B (en) 1980-02-29 1981-03-02 Refractory material for steel melts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803008251 DE3008251C2 (en) 1980-02-29 1980-02-29 Refractory material for molten steel

Publications (2)

Publication Number Publication Date
DE3008251B1 true DE3008251B1 (en) 1981-06-11
DE3008251C2 DE3008251C2 (en) 1982-09-30

Family

ID=6096228

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803008251 Expired DE3008251C2 (en) 1980-02-29 1980-02-29 Refractory material for molten steel

Country Status (7)

Country Link
JP (1) JPS5914423B2 (en)
AT (1) AT376960B (en)
BE (1) BE887607A (en)
CA (1) CA1150323A (en)
DE (1) DE3008251C2 (en)
FR (1) FR2477136A1 (en)
GB (1) GB2070582B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507463A2 (en) * 1991-04-05 1992-10-07 Foseco International Limited Filters for light metals
DE4304724C1 (en) * 1993-02-17 1994-05-05 Metallgesellschaft Ag Additive for strengthening oven refractory walls - comprises residues from titanium di:oxide prodn, coal residues, iron- and iron oxide-contg residues
EP2017022A1 (en) * 2007-07-20 2009-01-21 Hagenburger Component of a casting system which can be permeated by molten metal
CN115448736A (en) * 2022-08-18 2022-12-09 四川贝金达新材料有限公司 Runner brick resistant to corrosion of high-manganese, high-silicon and high-chromium alloy steel and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB601847A (en) * 1944-10-10 1948-05-13 Western Electric Co Improvements in or relating to ceramic materials
US3365318A (en) * 1965-01-25 1968-01-23 Harima Refractories Company Lt Low temperature burned refractory brick and method of making the same
GB1404956A (en) * 1972-12-05 1975-09-03 Le Abrazivny Z Ilich Ceramic bonding material for abrasive tools

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507463A2 (en) * 1991-04-05 1992-10-07 Foseco International Limited Filters for light metals
EP0507463A3 (en) * 1991-04-05 1993-03-17 Foseco International Limited Filters for light metals
DE4304724C1 (en) * 1993-02-17 1994-05-05 Metallgesellschaft Ag Additive for strengthening oven refractory walls - comprises residues from titanium di:oxide prodn, coal residues, iron- and iron oxide-contg residues
EP0611740A1 (en) 1993-02-17 1994-08-24 Metallgesellschaft Aktiengesellschaft Titanium-containing aggregate and use thereof for increasing the durability of refractory funace walls
EP2017022A1 (en) * 2007-07-20 2009-01-21 Hagenburger Component of a casting system which can be permeated by molten metal
CN115448736A (en) * 2022-08-18 2022-12-09 四川贝金达新材料有限公司 Runner brick resistant to corrosion of high-manganese, high-silicon and high-chromium alloy steel and preparation method thereof

Also Published As

Publication number Publication date
JPS5914423B2 (en) 1984-04-04
ATA594180A (en) 1984-06-15
BE887607A (en) 1981-06-15
AT376960B (en) 1985-01-25
DE3008251C2 (en) 1982-09-30
FR2477136B1 (en) 1984-04-13
JPS56134559A (en) 1981-10-21
CA1150323A (en) 1983-07-19
GB2070582A (en) 1981-09-09
GB2070582B (en) 1983-06-02
FR2477136A1 (en) 1981-09-04

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee