WO2004016568A1 - Revetement refractaire pour cuilleres dans l'industrie de l'acier inoxydable - Google Patents

Revetement refractaire pour cuilleres dans l'industrie de l'acier inoxydable Download PDF

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Publication number
WO2004016568A1
WO2004016568A1 PCT/ES2002/000397 ES0200397W WO2004016568A1 WO 2004016568 A1 WO2004016568 A1 WO 2004016568A1 ES 0200397 W ES0200397 W ES 0200397W WO 2004016568 A1 WO2004016568 A1 WO 2004016568A1
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WO
WIPO (PCT)
Prior art keywords
stainless steel
percentage
weight
steel industry
thermal shock
Prior art date
Application number
PCT/ES2002/000397
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English (en)
Spanish (es)
Inventor
Pedro FAJARDO SOLÁ
Original Assignee
Fajardo Sola Pedro
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 Fajardo Sola Pedro filed Critical Fajardo Sola Pedro
Priority to AU2002367502A priority Critical patent/AU2002367502A1/en
Priority to PCT/ES2002/000397 priority patent/WO2004016568A1/fr
Publication of WO2004016568A1 publication Critical patent/WO2004016568A1/fr

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    • 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
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • 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
    • 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
    • C04B35/013—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 containing 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
    • 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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/0435—Refractories from grain sized mixtures containing refractory metal compounds other than chromium oxide or chrome ore
    • 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
    • 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
    • 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
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • 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
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/402—Aluminium
    • 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
    • C04B2235/425—Graphite
    • 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
    • C04B2235/428—Silicon
    • 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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442—Carbonates
    • 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
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

Definitions

  • the invention that is protected in this Patent consists of a refractory coating for spoons of the stainless steel industry.
  • refractory materials are widely known in the stainless steel industry for the interior lining of the spoons that serve for the reception and transfer in the elaboration of said product in order to withstand the working temperatures, generally of the order of 1,650 degrees Celsius , and its consequent impacts on its reception and its physical-chemical reactions.
  • the various compositions of the refractory materials lead to varying degrees of hardness and resistance to cope with abrasion wear, chemical aggressions, operating time, thermal shock and working temperatures.
  • a refractory material of greater hardness and resistance to those already known about three times higher than conventional materials is achieved.
  • various refractory materials are known and used; but all of them have both operational and functional problems.
  • a combination of chemical elements is carried out due to their physical properties - magnesite (MgCO3), alumina (AI2O3), graphite, and improving additives and binding resins; whose structure has a low porosity and high refractory capacity.
  • This combination of crystalline solid compounds consisting mainly of magnesite-alumina-graphite is made with exact character in percentages by weight for each substance, in order to look for a high refractory capacity and an increase in the useful life of the interior lining refractory material of the transfer and pouring spoons of the stainless steel industry.
  • the coating material can be made and arranged as follows:
  • Magnesite (MgCO3) between 64-70%, preferably of a seawater magnesite, a weight percentage of alumina (AI2O3) between 12-18%, and 7-11% Graphite.
  • the graphite purity is preferably 94% crystalline and in flakes.
  • additives improving thermal shock and thermal resistance and oxidation (in a joint composition of aluminum powder, silicon metal, silicon carbide and clay) of between 7 - 9%.
  • phenolic resins between 3-4% by weight percentage.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

La présente invention industrielle concerne un revêtement réfractaire pour cuillères de l'industrie de l'acier inoxydable conférant une résistance au choc thermique et aux réactions physico-chimiques au moyen d'une composition chimique comprenant la combinaison d'un pourcentage en poids supérieur ou égal à un pourcentage en poids de magnésite (MgCO3) compris entre 64 et 70 %, un pourcentage en poids d'alumine (Al2O3) compris entre 12 et 18 %, et entre 7 et 11 % de graphite. L'invention concerne également un pourcentage en poids d'additifs d'amélioration du choc thermique et de la résistance thermique et de l'oxydation (dans une composition conjointe d'aluminium en poudre, silicium métallique, carbure de silicium et argile) compris entre 7 et 9 %. L'invention constitue un liant utilisé sur ces pourcentages totaux de résine phénoliques dont le pourcentage en poids est compris entre 3 et 4 %.
PCT/ES2002/000397 2002-08-08 2002-08-08 Revetement refractaire pour cuilleres dans l'industrie de l'acier inoxydable WO2004016568A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002367502A AU2002367502A1 (en) 2002-08-08 2002-08-08 Refractory coating for ladles used in the stainless steel industry
PCT/ES2002/000397 WO2004016568A1 (fr) 2002-08-08 2002-08-08 Revetement refractaire pour cuilleres dans l'industrie de l'acier inoxydable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2002/000397 WO2004016568A1 (fr) 2002-08-08 2002-08-08 Revetement refractaire pour cuilleres dans l'industrie de l'acier inoxydable

Publications (1)

Publication Number Publication Date
WO2004016568A1 true WO2004016568A1 (fr) 2004-02-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2002/000397 WO2004016568A1 (fr) 2002-08-08 2002-08-08 Revetement refractaire pour cuilleres dans l'industrie de l'acier inoxydable

Country Status (2)

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AU (1) AU2002367502A1 (fr)
WO (1) WO2004016568A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007077267A2 (fr) 2005-12-30 2007-07-12 Fajardo Sola Pedro Revetement refractaire perfectionne pour poches dans l'industrie de l'acier inoxydable
EP1984133A1 (fr) * 2005-11-03 2008-10-29 North Cape Minerals AS Procede pour la production d'un revetement d'usure a partir d'une matiere refractaire particulaire pour des poches de coulee et des bassins de coulee et revetement d'usure fabrique de cette maniere
WO2010094410A1 (fr) * 2009-02-20 2010-08-26 Hexion Specialty Chemicals Gmbh Produit céramique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES272636U (es) * 1981-05-08 1984-03-16 Quigley Company, Inc. Recipiente metalurgico perfeccionado.
JPS5957968A (ja) * 1982-09-28 1984-04-03 新日本製鐵株式会社 高炉出銑孔の閉塞材料
ES8802123A1 (es) * 1985-04-20 1988-04-01 Foseco Trading Ag Procedimiento para la produccion de tubos de colada
ES2089526T3 (es) * 1991-03-27 1996-10-01 Minteq International Inc Composicion refractaria aglomerada con resina que fluidifica por vibracion.
EP1052233A1 (fr) * 1998-01-28 2000-11-15 Krosaki Corporation Matiere refractaire de type alumine-magnesie-graphite

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES272636U (es) * 1981-05-08 1984-03-16 Quigley Company, Inc. Recipiente metalurgico perfeccionado.
JPS5957968A (ja) * 1982-09-28 1984-04-03 新日本製鐵株式会社 高炉出銑孔の閉塞材料
ES8802123A1 (es) * 1985-04-20 1988-04-01 Foseco Trading Ag Procedimiento para la produccion de tubos de colada
ES2089526T3 (es) * 1991-03-27 1996-10-01 Minteq International Inc Composicion refractaria aglomerada con resina que fluidifica por vibracion.
EP1052233A1 (fr) * 1998-01-28 2000-11-15 Krosaki Corporation Matiere refractaire de type alumine-magnesie-graphite

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1984133A1 (fr) * 2005-11-03 2008-10-29 North Cape Minerals AS Procede pour la production d'un revetement d'usure a partir d'une matiere refractaire particulaire pour des poches de coulee et des bassins de coulee et revetement d'usure fabrique de cette maniere
EP1984133A4 (fr) * 2005-11-03 2009-11-25 North Cape Minerals As Procede pour la production d'un revetement d'usure a partir d'une matiere refractaire particulaire pour des poches de coulee et des bassins de coulee et revetement d'usure fabrique de cette maniere
WO2007077267A2 (fr) 2005-12-30 2007-07-12 Fajardo Sola Pedro Revetement refractaire perfectionne pour poches dans l'industrie de l'acier inoxydable
WO2007077267A3 (fr) * 2005-12-30 2008-06-19 Sola Pedro Fajardo Revetement refractaire perfectionne pour poches dans l'industrie de l'acier inoxydable
WO2010094410A1 (fr) * 2009-02-20 2010-08-26 Hexion Specialty Chemicals Gmbh Produit céramique
EP2230225A1 (fr) * 2009-02-20 2010-09-22 Hexion Specialty Chemicals GmbH Produit céramique
CN102333740A (zh) * 2009-02-20 2012-01-25 迈图特种化工有限公司 陶瓷产品

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Publication number Publication date
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