FR2477136A1 - REFRACTORY MATERIAL FOR MOLTEN STEEL MASS - Google Patents
REFRACTORY MATERIAL FOR MOLTEN STEEL MASS Download PDFInfo
- Publication number
- FR2477136A1 FR2477136A1 FR8103002A FR8103002A FR2477136A1 FR 2477136 A1 FR2477136 A1 FR 2477136A1 FR 8103002 A FR8103002 A FR 8103002A FR 8103002 A FR8103002 A FR 8103002A FR 2477136 A1 FR2477136 A1 FR 2477136A1
- Authority
- FR
- France
- Prior art keywords
- refractory material
- mgo
- steel
- cao
- molten 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.)
- Granted
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)
Abstract
MATIERE REFRACTAIRE POUR LA COULEE DE MASSES D'ACIER EN FUSION, EN PARTICULIER POUR LA REALISATION DE BRIQUES DE CANAL OU D'ENTONNOIR, COMPORTANT DE 20 A 32 D'AL0, DE 60 A 70 DE SI0 ET DES OXYDES ACCESSOIRES, COMME TIO, FE0 ET NA0 DANS UNE PROPORTION INFERIEURE A 10 AINSI QUE DU CA0 ET DE MGO. SELON L'INVENTION, CETTE MATIERE EST CARACTERISEE EN CE QUE LA PROPORTION DE CAO ET DE MGO EST COMPRISE ENTRE 1,5 ET 10. AMELIORATION DE LA PURETE DE L'ACIER.REFRACTORY MATERIAL FOR THE CASTING OF MELTED STEEL MASSES, IN PARTICULAR FOR THE REALIZATION OF CHANNEL OR FUNNEL BRICKS, WITH 20 TO 32 OF AL0, 60 TO 70 OF SI0 AND ACCESSORY OXIDES, SUCH AS TIO, FE0 AND NA0 IN A PROPORTION LESS THAN 10 AS WELL AS CA0 AND MGO. ACCORDING TO THE INVENTION, THIS MATERIAL IS CHARACTERIZED IN THAT THE PROPORTION OF CAD AND MGO IS BETWEEN 1.5 AND 10. IMPROVEMENT OF THE PURITY OF THE STEEL.
Description
La présente invention concerne une matière réfractaireThe present invention relates to a refractory material
pour la coulée de l'acier, par exemple pour la réalisa- for the casting of steel, for example for
tion de briques de canal.channel bricks.
Jusqu'à présent, on utilise des briques de chamotte de grande qualité, résistant à l'abrasion, pour maintenir So far, high-quality, abrasion resistant fireclay bricks have been used to maintain
aussi faible que possible la proportion d'inclusionsen- as low as possible the proportion of inclusions-
dogènesnon-métalliquoedans l'acier. Les inclusions pro- non-metallic dogenes in steel. Inclusions
venant de la matière réfractaire sont souvent la cause de défauts dans l'acier, qui conduisent à rejeter de grandes quantités d'acier ou bien à déclasser ceux-ci from the refractory material are often the cause of defects in the steel, which lead to reject large quantities of steel or to decommission them
vers une qualité inférieure.to a lower quality.
En particulier, lors de la coulée de qualitâ3d'aciers' calmésà l'aluminium, d'autres causes de défauts sont constituées par des inclusions de particules d'alumine constituant un reste de l'opération de désoxydation. Ces inclusions sont particulièrement nuisibles puisque la plupart du temps, elles sont contenues dans l'acier sous la forme de très gros nids. Ceci amène à penser que les fines particules d'A1203 se séparent d'abord de l'acier dans le système de canal, y coagulent et ensuite sont entraînées par la coulée d'acier et il n'est alors plus In particular, during the casting of quality of aluminum-killed steels, other causes of defects are constituted by inclusions of alumina particles constituting a remainder of the deoxidation operation. These inclusions are particularly harmful since most of the time they are contained in steel in the form of very large nests. This suggests that the fine A1203 particles first separate from the steel in the channel system, coagulate and then are entrained by the steel casting and are no longer
possible de les séparer du lingot.possible to separate them from the ingot.
La présente invention a pour objet de remédier à ces inconvénients et de permettre l'obtention d'un produit The object of the present invention is to remedy these drawbacks and to make it possible to obtain a product
de coulée de plus grande pureté.casting of greater purity.
A cette fin, selon l'invention, la matière réfractaire pour la coulée de massesd'acier fondue, en particulier pour la réalisation de briques de canal et d'entonnoir, comportant de 20 à 32 % d'A1203, de 60 à 70 % de SiO2 et moins de 10 % d'oxydes accessoires tels que TiO2, For this purpose, according to the invention, the refractory material for melting molten steel masses, in particular for producing channel and funnel bricks, comprising from 20 to 32% Al 2 O 3, from 60 to 70% of SiO2 and less than 10% of accessory oxides such as TiO2,
Fe 0 et Na O, ainsi que du CaO et du MgO est caractéri- Fe 0 and Na O, as well as CaO and MgO are character-
2 3 22 3 2
* 2_ sée en ce que la proportion entre CaO et MgO est comprise * 2_ in that the proportion between CaO and MgO is included
entre 1,5 et 10%.between 1.5 and 10%.
De préférence, le Cao et/ou le MgO sont constitués par Preferably, the CaO and / or the MgO are constituted by
du laitier de haut-fourneau basique, de faible granulomé- basic blast furnace slag, of small granulometry
trie et/ou par le mélange de matières minérales comme l'olivine, la magnésite, la diopside,la hornblende ou la wollastonite. En ce qui concerne le mélange, la granulométrie de celui-ci and / or by mixing mineral materials such as olivine, magnesite, diopside, hornblende or wollastonite. Regarding the mixture, the granulometry of it
est de préférence inférieure à 100 V m. is preferably less than 100 V m.
Grâce à la composition correspondant à la présente inven- Thanks to the composition corresponding to the present invention
tion, on obtient une meilleure dissolution de la matière réfractaire par action thermique de la masse d'acier et des impuretés entrainées dans l'acier. De façon étonnante, on a trouvé que les particules de matière réfractaire In this way, a better solution of the refractory material is obtained by thermal action of the steel mass and the impurities entrained in the steel. Surprisingly, it has been found that particles of refractory material
dissoute formaient avec les produits de désoxydation con- dissolved together with the deoxidation products
tenus dans l'acier,pendant toute la durée du processus de coulée, une sorte de phase de laitier fluide à la face de séparation matière réfractaire-acier, qui était capable de dissoudre les produits de désoxydation, de leur donner une forme et une consistance leur permettant de se séparer facilement de-l'acier et donc d'améliorer held in the steel, during the whole duration of the casting process, a kind of fluid slag phase at the refractory material-steel separation face, which was able to dissolve the deoxidation products, give them a shape and consistency allowing them to separate easily from -steel and thus improve
la pureté de l'acier.the purity of steel.
On donne ci-après deux exemples de composition d'une ma- Two examples of composition of a machine are given below.
tière réfractaire selon l'invention. refractory material according to the invention.
Exemple 1Example 1
SiO 67,0% Al O 22,0% 23 3 CaO 0,4% MgO 3,0% Reste: Oxydes auxiliaires Point de ramollissement Point de fusion Affaissement sous charge SiO 67.0% Al O 22.0% 23 3 CaO 0.4% MgO 3.0% Remaining: Auxiliary oxides Softening point Melting point Underpressure under load
1420 C1420 C
1480 C1480 C
T05 1185 CT05 1185 C
T5 1275 CT5 1275 C
Exemple 2Example 2
SiO2 A1203 CaO MgO Reste: Oxydes auxiliaires Point de ramollissement Point de fusion Affaissement sous charge 61,0% 26,0% 6,3% 0,1% SiO2 A1203 CaO MgO Remainder: Auxiliary oxides Softening point Melting point Slump under load 61.0% 26.0% 6.3% 0.1%
1380 C1380 C
1470 C1470 C
T05 1130 CT05 1130 C
T5 1225 CT5 1225 C
-4-4
Claims (3)
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 |
|---|---|
| FR2477136A1 true FR2477136A1 (en) | 1981-09-04 |
| FR2477136B1 FR2477136B1 (en) | 1984-04-13 |
Family
ID=6096228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8103002A Granted FR2477136A1 (en) | 1980-02-29 | 1981-02-16 | REFRACTORY MATERIAL FOR MOLTEN STEEL MASS |
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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9107223D0 (en) * | 1991-04-05 | 1991-05-22 | Foseco Holding Int Ltd | 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 |
| DE102007034426B3 (en) * | 2007-07-20 | 2008-12-04 | HAGENBURGER Feuerfeste Produkte für Gießereien und Stahlwerke KG | Component of a casting system through which a molten metal can flow |
| 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 |
Citations (3)
| 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 |
-
1980
- 1980-02-29 DE DE19803008251 patent/DE3008251C2/en not_active Expired
- 1980-12-04 AT AT594180A patent/AT376960B/en not_active IP Right Cessation
-
1981
- 1981-02-16 FR FR8103002A patent/FR2477136A1/en active Granted
- 1981-02-20 BE BE0/203858A patent/BE887607A/en not_active IP Right Cessation
- 1981-02-26 JP JP56027565A patent/JPS5914423B2/en not_active Expired
- 1981-02-27 CA CA000371886A patent/CA1150323A/en not_active Expired
- 1981-03-02 GB GB8106532A patent/GB2070582B/en not_active Expired
Patent Citations (3)
| 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 |
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 |
| DE3008251B1 (en) | 1981-06-11 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |