EP0214882B2 - Feuerfeste Auskleidung eines metallurgischen Gefässes und Verfahren zu ihrer Herstellung - Google Patents

Feuerfeste Auskleidung eines metallurgischen Gefässes und Verfahren zu ihrer Herstellung Download PDF

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Publication number
EP0214882B2
EP0214882B2 EP86401649A EP86401649A EP0214882B2 EP 0214882 B2 EP0214882 B2 EP 0214882B2 EP 86401649 A EP86401649 A EP 86401649A EP 86401649 A EP86401649 A EP 86401649A EP 0214882 B2 EP0214882 B2 EP 0214882B2
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EP
European Patent Office
Prior art keywords
layer
liquid metal
sintered
sinterable
use according
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Expired - Lifetime
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EP86401649A
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English (en)
French (fr)
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EP0214882B1 (de
EP0214882A1 (de
Inventor
Jean-Charles Daussan
André Daussan
Gérard Daussan
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Daussan SAS
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Daussan SAS
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Priority to AT86401649T priority Critical patent/ATE40804T1/de
Publication of EP0214882A1 publication Critical patent/EP0214882A1/de
Priority to MYPI87002284A priority patent/MY101458A/en
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    • 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
    • B22D41/02—Linings

Definitions

  • the present invention relates to a coating for protecting the interior of a metallurgical container intended to contain a liquid metal such as liquid steel.
  • the invention also relates to a method for producing such a protective coating.
  • the metallurgical container which it is desired to protect by means of a coating in accordance with the invention may be a ladle, a tundish or a slag tank.
  • These metallurgical vessels generally comprise an outer steel casing which is coated internally with a lining of refractory material such as bricks made of magnesia, alumina or silico-aluminous or of refractory cement.
  • French Patent 2,316,027 recommends the protection of all the interior parts of a liquid metal transfer container by the interposition between the permanent refractory lining and the liquid metal of sinterable elements, generally in the form of plates.
  • French patent 2,393,637 describes a similar protection, made with or without the use of prefabricated elements, refractory insulators sinterable in contact with liquid steel and made integral with the permanent refractory lining by application of a composition of substantially identical nature. to that of the aforementioned prefabricated elements.
  • French Patent 2,451,789 relates to the protection of the permanent refractory lining of a metallurgical container, comprising between this refractory lining and the coating coming into contact with liquid steel, a relatively compressible layer based on organic fibers and / or inorganic coated in a binder.
  • French patent 2,393,637 already cited above also describes the possibility of projecting or introducing using a mold leaving between itself and the wall to be coated, a uniform space into which the composition is introduced by tamping. and / or by blowing, by suction or by vibration.
  • the protective coatings formed by the plates or prefabricated elements are relatively expensive and complicated to implement. In addition, these prefabricated plates or elements generally do not resist beyond five to six successive flows.
  • these plates must be preheated to a temperature above 600 ° C to remove moisture and the organic compounds they contain, in order to avoid any pollution of the liquid metal by hydrogen.
  • the prefabricated plates or elements try to curve under the effect of heat, creating between the joints of these plates or elements, spaces in which the liquid metal can infiltrate which can thus reach the permanent refractory lining.
  • this coating can only be used for a few successive castings and must therefore be replaced frequently. This replacement is relatively expensive and causes an interruption of the casting which is also unfavorable from an economic point of view.
  • the object of the present invention is to remedy the drawbacks of the aforementioned known solutions by creating a protective coating which is both inexpensive, easy to implement, which withstands many successive flows, which withstands temperatures without damage. high preheating, which allows to maintain a high power of thermal insulation during many successive castings and which avoids any risk of adhesion between the coating and the wall of the metallurgical container, thus considerably facilitating the cleaning thereof this at the end of casting.
  • the coating for protecting the interior of a metallurgical container intended to contain a liquid metal this coating being based on refractory inorganic particles, coated in a binder, and comprising a layer whose composition and particle size inorganic refractory particles are such that this layer sintered throughout its mass, under the effect of the heat of the liquid metal contained in the metallurgical container and being characterized in that it comprises between the aforementioned layer and the wall of the container, a layer whose composition and particle size of the refractory inorganic particles are such that this layer does not sinter or only sinter partially, so as to remain brittle, even when the first layer is completely sintered.
  • the coating according to the invention thus comprises at least two separate layers.
  • One of these two layers gradually sintered when it is in contact with the liquid metal. After a long period of contact, for example after ten successive flows, this layer is sintered throughout its mass.
  • the other layer does not sinter or sinter only partially, so as to remain brittle, even when the first layer is completely sintered.
  • this layer does not adhere to this lining. Consequently, any risk of adhesion between the coating and this refractory lining is avoided, even when the first layer is completely sintered, so that cleaning at the end of casting of the interior of the metallurgical container is very easy and the refractory lining of this container is not likely to be damaged, neither during pouring, nor during cleaning.
  • the duration of use of a two-layer coating is surprisingly significantly greater than that of a coating formed of a single layer, sinterable throughout its mass, of the same thickness as that of the two layers of the coating according to the invention.
  • Sintering is the physico-chemical phenomenon which makes it possible to create a bond between two inorganic particles. This sintering takes place at a temperature significantly lower than the melting temperature of these particles. This sintering is favored by the high pressure exerted by the liquid metal on the coating according to the invention, by the possible presence, within this coating of very fine particles, of fluxes (inorganic particles having a melting point lower than that other particles that are refractory) and by using the lowest possible binder content, so that the inorganic particles are arranged very close to each other.
  • the method for producing the coating according to the invention consists in successively applying the different layers from a mud comprising the solid ingredients of the layer which it is desired to form, mixed with a liquid, for example ethylene glycol alcohol and / or water at a rate of 3 to 30% by weight of liquid, the density of this sludge varying according to the layer, between 0.8 and 3.5 kg / dm3, after which the different layers are dried.
  • This drying is carried out at a temperature between 100 and 200 ° C to remove the free water.
  • the different layers are preheated to a temperature between 600 and 1450 ° C. to remove the water of constitution and / or of crystallization to avoid any pollution of the liquid metal by hydrogen.
  • the mud is applied, preferably by spraying and / or spraying, but can also be carried out by other mechanical means such as: molding, injection, vibration, by gravity, trowelling or any other means of application. .
  • the process according to the invention is both very economical and is perfectly suited to the application of successive layers having different compositions.
  • the attached single figure shows, by way of nonlimiting example, in cross section, a coating according to the invention, with three superimposed layers, applied inside a tundish.
  • the flow distributor intended to contain liquid steel comprises an outer casing made of steel 1 comprising on its internal faces a permanent refractory lining composed of refractory bricks 2.
  • a protective coating is applied in the form of mud, which, in the example shown, comprises three layers 3, 4, 5.
  • the outer layer 3 intended to come into contact with the liquid metal which is poured into the tundish consists of a mixture of refractory inorganic particles, linked together by means of an organic and / or inorganic binder.
  • the composition of these inorganic particles and their particle size are such that these particles can sinter, that is to say bind to each other to create a coherent mass, in contact with the liquid metal.
  • this sintering is carried out very gradually and reaches the entire thickness of the layer 3, that is to say the entire mass of this layer, after a certain contact time which generally corresponds to several hours and several successive flows.
  • the thickness of this layer 3 is generally between 1 and 10 cm.
  • the intermediate layer 4 is also constituted by a mixture of inorganic particles linked together by means of an organic and / or inorganic binder.
  • the composition and the grain size of these particles are such that these particles only partially sinter, so that this layer 4 remains brittle (or meringuable according to the expression used in steelmakers), even when the outer layer 3 is completely sintered in its mass.
  • the thickness of this layer 4 is generally of the same order of magnitude as that of layer 3.
  • Layer 5 is in direct contact with the lining of refractory bricks 2.
  • This layer 5 is also constituted by a mixture of refractory inorganic particles, linked together by an organic and inorganic binder.
  • the layer 5 is not sinterable, so that after destruction under the effect of heat, of the organic and / or inorganic binder which ensures the initial cohesion of this layer , this layer 5 becomes powdery and no longer has any adhesion with the lining of refractory bricks 2.
  • the more or less sinterable nature of the layers 3 and 4 depends on the nature and composition of the refractory inorganic particles, on the particle size thereof, on the possible presence of fluxes such as iron oxide or carbonate of alkali or alkaline earth metals and binder content.
  • a composition containing a large proportion of refractory inorganic particles will preferably be used.
  • the proportion by weight of these will preferably be between 90 and 99.7%.
  • the particle size of these particles is preferably between 0 and 4 mm, which implies that some of them are very fine, this fineness promoting sintering.
  • the intermediate layer 4 contains a proportion of refractory inorganic particles lower than that of the completely sinterable layer 3. This proportion is preferably between 75 and 95% by weight.
  • the particle size of these particles is advantageously between 0 and 3 mm, preferably between 0.25 and 2.5 mm, so that very fine particles of particle size less than 0.5 mm are absent from this composition, so as to limit sintering.
  • this layer 4 can only partially sinter while remaining brittle, that is to say brittle, even when the layer 3 is completely sintered in its mass.
  • this intermediate layer 4 only partially sintered, this intermediate layer retains its thermal insulation properties, so that it makes it possible to avoid cooling of the liquid metal, even when the outer layer 3 is completely sintered and thus has lost its initial thermal insulation properties.
  • the layer 5 adjacent to the refractory permanent lining 2 preferably contains between 65 and 96% by weight of refractory inorganic particles whose particle size is preferably between 0 and 5 mm.
  • This layer 5 due to its lower content of refractory inorganic particles, and the fact that it is separated from the sinterable layer 3, by an intermediate layer 4, thermally insulating, does not sinter under the effect of heat, so that after destruction of the binder initially ensuring the cohesion of the layer, the latter loses all its cohesion and becomes pulverulent.
  • the coating according to the invention not only effectively protects the lining permanent refractory 2 but it makes it very easy to clean the interior of the distributor at the end of casting.
  • these layers are successively applied to the walls of the tundish, in the form of sludge containing the solid ingredients of these layers, mixed with a liquid for example such as water and / or oils, in a proportion of 3 to 30% by weight of liquid.
  • a liquid for example such as water and / or oils
  • An alcohol may also be suitable (for example: ethylene glycol).
  • the mud applied must be sufficiently pasty, so as to adhere to the walls of the tundish, or to the other layers, without sinking.
  • the density of the applied mud varies according to the layers 5, 4, 3, between 0.8 kg / dm3 and 3.5 kg / dm3, the outer layer 3 being denser than the intermediate layer 4 and the latter being itself even denser than the layer 5 adjacent to the refractory lining 2.
  • the layers 3, 4, 5 thus applied are then dried at a temperature of between 100 and 200 ° C., for example by buckling and / or by blowing hot air or by means of electric heating resistors, placed inside. of the tundish and attached to a cover closing the latter. This drying eliminates the free water from the mud which constitutes the different layers.
  • the layers 3, 4, 5 are preheated to a temperature equal to at least 600 ° C., this temperature possibly reaching 1450 ° C.
  • the inorganic and / or organic binders which decompose the initial cohesion of the layers 3, 4, 5 are decomposed.
  • This heating at high temperature has the effect of partially sintering the outer layer 3.
  • This partial sintering makes it possible to restore the cohesion of the entire coating.
  • This cohesion makes it possible to prevent, when the liquid metal is poured into the tundish, that the inorganic particles detach from the coating to pollute the liquid metal.
  • the layer 5 adjacent to the permanent refractory lining 2 does not sinter and becomes powdery, this layer 5 has no adhesion with respect to this lining, so that at the end of casting, the removal coating is very easy and there is no risk of damaging the refractory lining by trying to remove by means of tools such as jackhammers, the solidified masses adhering to this permanent refractory lining.
  • one of the layers 4 or 5 can be omitted, so as to imitate the number of layers at least 2.
  • the layers 3 and 4 can be inverted, that is to say by placing the sinterable layer 3 between the non-sinterable layer 5 and the partially sinterable layer 4.
  • the process according to the invention makes it possible to apply to the area of the slag 6 floating on the liquid metal, an additional thickness 7 of the sinterable layer 3.
  • This additional thickness 7 may have the same composition as the layer 3 so as to sinter at the same time as this.
  • This additional thickness 7 makes it possible to reinforce the protection provided by the coating according to the invention, in the most vulnerable zone of the flow distributor, namely the zone of slag.
  • This additional thickness 7 may also have a composition different from that of the layer 3 so as to provide increased protection against slag.
  • the composition of the layer forming this additional thickness 7 can thus contain highly refractory particles such as zircon and / or zirconia and / or carbon, and / or silicon carbide.
  • the thickness of the coating can, of course, also be increased in other places in the tundish and in part in the impact zone of the casting jet which is poured from the tundish placed above the tundish. casting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Making Paper Articles (AREA)

Claims (12)

  1. Verwendung einer Auskleidung auf Basis von in einem Bindemittel eingebetteten feuerfesten anorganischen Teilchen, zum Schutz der Innenseite eines Gießverteilers oder einer Gießpfanne, der bzw. die zur Aufnahme eines flüssigen Metalls bestimmt ist, wobei die Auskleidung eine Schicht (3) enthält, bei der die Zusammensetzung und Korngröße der feuerfesten anorganischen Teilchen so sind, daß diese Schicht unter der Wirkung der Wärme des in dem Verteiler oder der Pfanne enthaltenen flüssigen Metalls in ihrer gesamten Masse sintert, und zwischen der vorgenannten Schicht (3) und der Gefäßwand eine Schicht (4 oder 5) umfaßt, bei der die Zusammensetzung und Korngröße der feuerfesten anorganischen Teilchen unterschiedlich zu jenen der vorgenannten Schicht (3) und so sind, daß die Schicht nicht oder nur teilweise sintert, sodaß sie mürbe bleibt, selbst wenn die erste Schicht (3) vollständig gesintert ist.
  2. Verwendung nach Anspruch 1, dadurch gekennzeichnet, daß die genannte Auskleidung an der Innenseite eines metallurgischen Gefäßes angebracht ist, dessen Wand ein dauerhaftes Futter (2) aus feuerfestem Material besitzt.
  3. Verwendung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Auskleidung die drei folgenden Schichten enthält:
    - eine Schicht (3), die dazu bestimmt ist, in direkten Kontakt mit dem flüssigen Metall zu kommen, und beim Kontakt mit diesem flüssigen Metall in ihrer gesamten Masse sintern kann, wobei diese Schicht bedeckt
    - eine Schicht (4), die nur teilweise sintert und mürbe bleibt, selbst wenn die vorhergehende Schicht in ihrer gesamten Masse gesintert ist, und
    - eine nicht sinterbare Schicht (5) in direktem Kontakt mit dem feuerfesten Futter, welche unter Wärmeeinwirkung feinpulvrig wird.
  4. Verwendung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Auskleidung die drei folgenden Schichten enthält:
    - eine Schicht, die dazu bestimmt ist, in direkten Kontakt mit dem flüssigen Metall zu kommen, und beim Kontakt mit diesem flüssigen Metall in ihrer gesamten Masse sintern kann, wobei diese Schicht bedeckt
    - eine nicht sinterbare Schicht, die unter Wärmeeinwirkung feinpulvrig wird, und
    - eine Schicht in direktem Kontakt mit dem feuerfesten Futter, die nur teilweise sintert und mürbe bleibt, selbst wenn die sinterbare Schicht in ihrer gesamten Masse gesintert ist.
  5. Verwendung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die sinterbaren (3) oder teilweise sinterbaren (4) Schichten folgende Gewichtszusammensetzung aufweisen:
    - mineralisches Bindemittel (z.B. Ton und/oder Silikat und/oder tonerdehaltiger und/oder phosphathaltiger und/oder magnesiumhaltiger Zement) und/oder organisches Bindemittel (z.B. synthetischer Klebstoff)   0,3 bis 15%,
    - feuerfeste anorganische Teilchen in Form von Körnern und/oder Fasern (z.B. Magnesia, Chrommagnesia und/oder Magnesiasilikat und/oder Kieselerde und/oder Tonerde und/oder Zirkon und/oder Zirkonerde)   70 bis 99,7%,
    - organische Teilchen und/oder kohlenstoffhaltige Materialien in Form von Fasern und/oder Körnern   0 bis 28,7%,
    - eine oberflächenaktive Verbindung   0 bis 5%.
  6. Verwendung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die sinterbare Schicht (3), die dazu bestimmt ist, mit dem flüssigen Metall in Kontakt zu kommen, 70 bis 99,7 Gew.-% feuerfeste anorganische Teilchen enthält, deren Korngröße vorzugsweise zwischen 0 und 4 mm liegt.
  7. Verwendung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß die teilweise sinterbare, jedoch mürbe bleibende Schicht (4) 75 bis 95 Gew.-% feuerfeste anorganische Teilchen enthält, deren Korngröße vorzugsweise zwischen 0,25 und 2,5 mm liegt.
  8. Verwendung nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, daß die nicht sinterbare und feinpulvrig werdende Schicht (5) 65 bis 96 Gew.-% feuerfeste anorganische Teilchen enthält, deren Korngröße zwischen 0 und 5 mm liegt.
  9. Verwendung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Auskleidung gegenüber der Zone der auf dem flüssigen Metall schwimmenden Schlacke (6) eine Überdicke (7) der beim Kontakt mit dem flüssigen Metall vollständig sinternden Schicht besitzt.
  10. Verwendung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Auskleidung gegenüber der Zone der auf dem flüssigen Metall schwimmenden Schlacke (6) eine Überdicke (7) besitzt, die von einer auf die beim Kontakt mit dem flüssigen Metall vollständig sinternde Schicht (3) aufgebrachten Schicht gebildet ist, welche Überdickenschicht gegen den Angriff von Schlacken widerstandsfähige, anorganische Teilchen enthält.
  11. Verwendung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die verschiedenen Schichten (5, 4, 3) nacheinander in Form von Schlämmen aufgebracht werden, die die festen Bestandteile der zu bildenden Schicht in Mischung mit einer Flüssigkeit, wie Wasser, in einer Menge von 3 bis 30 Gew.-% bezogen auf die Flüssigkeit enthalten, wobei die Dichte dieser Schlämme zwischen 0,8 und 3,5 kg/dm3 variiert, wonach die diversen Schichten (5, 4, 3) bei einer Temperatur zwischen 100 und 200°C getrocknet werden, um das freie Wasser zu eliminieren.
  12. Verwendung nach Anspruch 11, dadurch gekennzeichnet, daß die diversen Schichten (5, 4, 3) auf eine Temperatur zwischen 600 und 1450°C vorerhitzt werden, um das Konstitutionswasser und/oder das Kristallwasser zu eliminieren.
EP86401649A 1985-07-24 1986-07-23 Feuerfeste Auskleidung eines metallurgischen Gefässes und Verfahren zu ihrer Herstellung Expired - Lifetime EP0214882B2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT86401649T ATE40804T1 (de) 1985-07-24 1986-07-23 Feuerfeste auskleidung eines metallurgischen gefaesses und verfahren zu ihrer herstellung.
MYPI87002284A MY101458A (en) 1985-07-24 1987-09-29 A lining for protecting the interior of a metallurgical vessel and a method for forming said lining

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8511327 1985-07-24
FR8511327A FR2585273B1 (fr) 1985-07-24 1985-07-24 Revetement pour proteger l'interieur d'un recipient metallurgique et procede pour realiser ce revetement

Publications (3)

Publication Number Publication Date
EP0214882A1 EP0214882A1 (de) 1987-03-18
EP0214882B1 EP0214882B1 (de) 1989-02-15
EP0214882B2 true EP0214882B2 (de) 1997-09-24

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EP86401649A Expired - Lifetime EP0214882B2 (de) 1985-07-24 1986-07-23 Feuerfeste Auskleidung eines metallurgischen Gefässes und Verfahren zu ihrer Herstellung

Country Status (10)

Country Link
US (1) US4799652A (de)
EP (1) EP0214882B2 (de)
AT (1) ATE40804T1 (de)
AU (1) AU586519B2 (de)
CA (1) CA1266776A (de)
DE (1) DE3662086D1 (de)
ES (1) ES2001336A6 (de)
FR (1) FR2585273B1 (de)
MY (1) MY101458A (de)
ZA (1) ZA865500B (de)

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DE10052352A1 (de) * 2000-10-21 2002-05-02 Veitsch Radex Gmbh Wien Feuerfeste Masse und Verfahren zur Erstellung einer feuerfesten Auskleidung

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FR2625924B1 (fr) * 1988-01-20 1990-05-11 Daussan & Co Dispositif pour projeter un revetement sur la surface interieure d'un recipient de transvasement de metal liquide et procede s'y rapportant
FR2646367B1 (fr) * 1989-04-26 1994-04-01 Daussan Cie Procede et installation pour realiser un revetement sur les parois interieures d'un recipient metallurgique
EP0399786A3 (de) * 1989-05-25 1992-05-27 Alcan International Limited Feuerfeste Auskleidungen, beständig gegen Natrium und Natriumsalze
FR2657549B1 (fr) * 1990-01-26 1992-04-24 Daussan & Co Procede pour appliquer sur les faces interieures d'un recipient metallurgique un revetement de protection comportant au moins deux couches et revetement de protection ainsi obtenu.
LU87757A1 (fr) * 1990-06-27 1992-01-15 Daussan Et Compagnie Societe E Procede pour appliquer sur les faces interieures d'un recipient metallurgique un revetement de protection comportant au moins deux couches
DE4240287C1 (de) * 1992-12-01 1994-02-17 Veitsch Radex Ag Vorrichtung und Verfahren zum Aufbringen einer feuerfesten Isoliermasse auf die Wand eines metallurgischen Gefäßes
DE4319393C1 (de) * 1993-06-11 1994-06-01 Chemikalien Ges Hans Lungmus M Verfahren zum Herstellen von feuerfesten Tiegeln für Stahlbehandlungspfannen
US5507474A (en) * 1994-01-13 1996-04-16 Minerals Technologies, Inc. Lining for molten metal handling vessles
FR2717720A1 (fr) * 1994-03-23 1995-09-29 Daussan & Co Revêtement pour protéger l'intérieur d'un récipient métallurgique, dispositif et procédé d'application de ce revêtement.
FR2732915B1 (fr) * 1995-04-14 1997-06-13 Daussan & Co Procede pour appliquer a l'interieur d'un recipient metallurgique un revetement de protection comportant au moins deux couches
US5885510A (en) * 1997-02-07 1999-03-23 Alcoa Chemie Gmbh Methods of making refractory bodies
US6165926A (en) * 1998-06-24 2000-12-26 Alcoa Chemie Gmbh Castable refractory composition and methods of making refractory bodies
WO2009152330A1 (en) * 2008-06-12 2009-12-17 Latitude 18, Inc Inorganic phosphate resins and method for their manufacture
WO2011072262A2 (en) 2009-12-11 2011-06-16 Latitude 18, Inc. Inorganic phosphate compositions and methods
WO2011071569A1 (en) * 2009-12-11 2011-06-16 Latitude 18, Inc. Inorganic phosphate corrosion resistant coatings
US20130139930A1 (en) 2009-12-18 2013-06-06 Latitude 18, Inc. Inorganic phosphate corrosion resistant coatings
CN102711920A (zh) * 2009-12-30 2012-10-03 3M创新有限公司 在面罩主体中具有拉胀网片的过滤式面具呼吸器
CN102803177A (zh) 2010-02-09 2012-11-28 18纬度有限公司 磷酸盐粘结的复合材料和方法
CN102062540B (zh) * 2010-06-18 2013-07-03 四川龙蟒矿冶有限责任公司 一种复合结构的电炉炉衬
WO2015043452A1 (zh) * 2013-09-29 2015-04-02 武汉钢铁(集团)公司 提高冶炼钢包使用效率的方法及其高寿命低材耗冶炼钢包
TWI841524B (zh) * 2017-04-17 2024-05-11 美商維蘇威美國公司 多孔耐火澆鑄材料、其用途及製造
CN111960812A (zh) * 2020-08-30 2020-11-20 洛阳欧斯特节能科技有限公司 一种高温不定型纳米耐火保温材料及其制备方法

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GB1544637A (en) * 1975-11-10 1979-04-25 Foseco Trading Ag Lining of molten metal containers
JPS53106636A (en) * 1977-03-02 1978-09-16 Nippon Kokan Kk Casting vessel having basic lining and use thereof
FR2393637A1 (fr) * 1977-06-07 1979-01-05 Daussan & Co Composition pour revetement de repartiteur de coulee, procede pour revetir ce dernier et revetement obtenu
FR2451789A1 (fr) * 1979-03-22 1980-10-17 Daussan & Co Revetement thermiquement isolant pour recipients metallurgiques et procede s'y rapportant
DE3152796C2 (de) * 1981-03-31 1987-01-22 Institut problem lit'ja Akademii Nauk Ukrainskoj SSR, Kiev Verfahren zum Auskleiden eines h}ttenm{nnischen Aggregats
JPS57184884A (en) * 1981-05-08 1982-11-13 Fuaizaa Kuiguree Kk Protective layer for metallurgical vessel
FR2516415A1 (fr) * 1981-11-13 1983-05-20 Daussan & Co Dispositif pour eliminer les inclusions contenues dans les metaux liquides
US4422625A (en) * 1982-02-23 1983-12-27 Fmc Corporation Foundry pouring ladle protective liner
CH686374A5 (de) * 1993-10-13 1996-03-15 Alusuisse Lonza Services Ag Emaillierbare Oxidschicht.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10052352A1 (de) * 2000-10-21 2002-05-02 Veitsch Radex Gmbh Wien Feuerfeste Masse und Verfahren zur Erstellung einer feuerfesten Auskleidung
US6803336B1 (en) 2000-10-21 2004-10-12 Refractory Intellectual Property Gmbh & Co. Kg Fire-resistant substance and method for producing a fire-resistant lining
DE10052352B4 (de) * 2000-10-21 2005-04-14 Refractory Intellectual Property Gmbh & Co. Kg Verwendung eines Reduktionsmittels in MgO-Sinter-Massen

Also Published As

Publication number Publication date
CA1266776A (en) 1990-03-20
FR2585273B1 (fr) 1988-05-13
MY101458A (en) 1991-11-18
AU6565286A (en) 1988-05-26
EP0214882B1 (de) 1989-02-15
US4799652A (en) 1989-01-24
AU586519B2 (en) 1989-07-13
EP0214882A1 (de) 1987-03-18
FR2585273A1 (fr) 1987-01-30
ATE40804T1 (de) 1989-03-15
ES2001336A6 (es) 1988-05-16
ZA865500B (en) 1987-03-25
DE3662086D1 (en) 1989-03-23

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