US20100152321A1 - Hot casting repair mix - Google Patents

Hot casting repair mix Download PDF

Info

Publication number
US20100152321A1
US20100152321A1 US12/600,726 US60072608A US2010152321A1 US 20100152321 A1 US20100152321 A1 US 20100152321A1 US 60072608 A US60072608 A US 60072608A US 2010152321 A1 US2010152321 A1 US 2010152321A1
Authority
US
United States
Prior art keywords
hot
weight
repair mix
casting repair
hot casting
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.)
Abandoned
Application number
US12/600,726
Other languages
English (en)
Inventor
Makoto Namba
Hisaharu Sasaki
Kiyoyuki Komatsubara
Takaaki Koyama
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.)
Shinagawa Refractories Co Ltd
Original Assignee
Shinagawa Refractories Co Ltd
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 Shinagawa Refractories Co Ltd filed Critical Shinagawa Refractories Co Ltd
Assigned to SHINAGAWA REFRACTORIES, CO., LTD. reassignment SHINAGAWA REFRACTORIES, CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOMATSUBARA, KIYOYUKI, KOYAMA, TAKAAKI, NAMBA, MAKOTO, SASAKI, HISAHARU
Publication of US20100152321A1 publication Critical patent/US20100152321A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/44—Refractory linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • 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
    • 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
    • C04B35/057—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 calcium oxide
    • 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
    • C04B35/06—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 oxide mixtures derived from dolomite
    • 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
    • C04B35/12—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 chromium oxide
    • 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
    • C04B35/481—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 containing silicon, e.g. zircon
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6269—Curing of 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
    • C04B35/632—Organic 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
    • C04B35/622—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
    • C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63472—Condensation polymers of aldehydes or ketones
    • C04B35/63476—Phenol-formaldehyde condensation polymers
    • 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
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/04—Blast furnaces with special refractories
    • C21B7/06—Linings for furnaces
    • 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
    • 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
    • F27D1/1626—Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall
    • 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
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/405—Iron group metals
    • 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
    • C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5463—Particle size distributions
    • C04B2235/5472—Bimodal, multi-modal or multi-fraction
    • 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
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • 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

Definitions

  • the present invention relates to a hot casting repair mix for repairing various refining furnace, vessels, and the like in hot condition.
  • a method of charging a powdery repairing material into the furnace and baking the material is widely used since transportation and storage of the material are easy and additionally installation is simple and convenient such that a prior kneading step, e.g., included in cast repairing is unnecessary and the material is charged into the furnace and baked by remaining heat of the furnace.
  • the powdery hot casting repair mixes are roughly classified into aqueous one and nonaqueous one.
  • aqueous material for example, hot casting repair mixes which use phosphate salts or silicate salts containing water of crystallization are disclosed in Patent Document 1.
  • the nonaqueous hot casting repair mix using tar, pitch or the like is known to have a good durability as compared with the aqueous hot casting repair mix but the former material has a drawback that a long hardening time is required.
  • Patent Document 2 addition of Mg powder is disclosed as a method for reducing the hardening time.
  • the Mg powder not only is expensive and lowers economical efficiency but also has a high risk of dust explosion and thus the greatest care is necessary for handling of raw materials during production.
  • Patent Document 3 discloses addition of an iron powder and an Al powder as a technology for improving a nonaqueous hot casting repair mix.
  • the iron powder precipitates inside the material and has an action of heat absorption from an adhering surface, so that the powder improves adhesiveness of the hot casting repair mix.
  • adhesion strength is impaired and rather exfoliation tends to occur, so that improvement in durability has not been achieved.
  • Patent Document 1 Japanese Patent Application Raid-Open: JP-A-2-26874
  • Patent Document 2 Japanese Patent Application Raid-Open: JP-A-11-240771
  • Patent Document 3 Japanese Patent Application Raid-Open: JP-A-11-278948
  • the invention provides a powdery nonaqueous hot casting repair mix which, while enjoying simple and convenient installation, can substantially reduce the hardening time after installation and is excellent in economical efficiency and durability.
  • it is a hot casting repair mix comprising 5 to 30% by weight of a binder capable of forming a carbon bond in hot condition and 1 to less than 5% by weight of an iron powder and the balance consisting of a refractory aggregate.
  • a fluidization promoter is contained in an amount of 0.1 to 1% by weight relative to 1% by weight of the binder capable of forming a carbon bond in hot condition and the total amount of the binder capable of forming a carbon bond in hot condition and the fluidization promoter is 5 to 30% by weight and an iron powder is contained in an amount of 1 to less than 5% by weight and the balance consisting of a refractory aggregate.
  • a fluidization promoter for the purpose of imparting fluidization, it is preferred to add a fluidization promoter within a range where the sedimentation of the iron powder is not facilitated and the effect is not inhibited.
  • the furnace wall of the molten metal vessel to be repaired is so hot as at least 700° C. or higher.
  • a powdery particulate binder is melted by remaining heat of the furnace and the whole repairing material becomes in a fluidized state, so that it fills into details of places to be repaired and at the same time a refractory material is closely filled. Then, the hot casting repair mix forms a carbon bond after hardened by the action of the binder.
  • the hot casting repair mix of the present invention has an improved thermal conductivity of the material owing to the addition of the iron powder, elevation of the material temperature is rapid and carbonation of the binder is promoted during fluidization and heat reception in hot condition, so that the hardening time is substantially reduced.
  • the iron powder precipitates by gravity separation from the refractory aggregate during the fluidization but it becomes possible to suppress an adverse effect on the adhering surface by limiting the amount thereof to be added.
  • the hot casting repair mix of the present invention can effectively transfer furnace heat to the material during baking, the hardening time can be reduced. Moreover, since the adhesion strength is not impaired during hot working, exfoliation hardly occurs and thus the material is excellent in durability.
  • the hot casting repair mix of the present invention remarkably contributes to improvement in working ratio and life of the furnaces such as molten metal vessels owing to the economical efficiency and an excellent repairing effect.
  • the refractory aggregate for use in the present invention is not particularly limited and suitable one adapted to the mother material used at the place to be repaired can be employed.
  • the refractory aggregate is one or more of acidic oxides such as silica and zircon; neutral oxides such as alumina and chromia; basic oxides such as magnesia, calcia and dolomite; non-oxides such as carbonaceous materials, silicon carbide and silicon nitride; various kinds of brick scraps; and the like. It is preferable for these refractory aggregates to suitably adjust the grain size to coarse grains, medium grains, and fine grains so that the structure of the hot casting repair mix becomes a closely packed structure.
  • the iron powder for use in the present invention includes iron alloys but the purity of Fe is not particularly limited and inexpensive one is preferable from economical viewpoints.
  • the amount of the iron powder to be used is 1 to less than 5% by weight relative to 100% by weight of the hot casting repair mix. When the amount is less than 1% by weight, the effect of the present invention (improvement in thermal conductivity of the material) is not sufficiently obtained and thus the hardening time is not reduced. Moreover, when the amount is 5% by weight or more, the iron powder precipitates on the repairing surface (adhering surface) during fluidization, the film of molten iron formed on the adhering surface at the operation of the furnace after hot casting repairing increases, and exfoliation tends to occur, so that the case is not preferable.
  • the grain size of the iron powder for use in the present invention is preferably fine and coarse grains are not preferable since the iron powder tends to precipitate during fluidization.
  • a maximum grain size of 1.5 mm or less is preferable.
  • a lower limit of the grain size is not particularly defined so far as it is fine within an inexpensively available range.
  • the use of aluminum known as an antioxidant, copper having a high thermal conductivity and the like can also bring about expectation of the effect of improving thermal conductivity of the material but the use is not preferable since they are expensive and thus lower economical efficiency.
  • the binder capable of forming a carbon bond during hot work a powdery particulate pitch or phenol resin used as a usual organic binder can be employed.
  • the amount of the binder capable of forming a carbon bond to be used is 5 to 30% by weight relative to 100% by weight of the hot casting repair mix. When the amount is less than 5% by weight, the carbon bond is not sufficiently formed and an executed body inferior in strength and adhesiveness is obtained and when the amount exceeds 30% by weight, an executed body having a large porosity is obtained and thus anticorrosive properties decrease.
  • the fluidization promoter is used for promoting fluidization by melt softening of the binder and imparting wide repairing area and heat-receiving area to the hot casting repair mix.
  • One or two or more selected from p-alkylphenols, lactams, bisphenol, diphenyl, diphenylamine, paraffin, wax and the like can be used.
  • the total amount of the binder capable of forming a carbon bond in hot condition and the fluidization promoter is 5 to 30% by weight and the fluidization promoter is used in an amount of 0.1 to 1% by weight, preferably 0.1 to 0.6% by weight relative to 1% by weight of the binder capable of forming a carbon bond.
  • the amount is less than 0.1% by weight, the fluidization promoting effect is not obtained and when the amount exceeds 1% by weight, the viscosity of the hot casting repair mix tends to decrease and the iron powder precipitates on the repairing surface (adhering surface), so that the cases are not preferable.
  • inventive products are Examples of the invention, together with comparative products but the invention is not limited by the following inventive products.
  • Table 1 shows Examples and Comparative Examples regarding the hot casting repair mix of the present invention.
  • Examples of the present invention had a short hardening time and also showed a good durability in the actual furnace test. Since adhesive strength was low and apparent porosity of the repaired body was large in Comparative Examples 1 and 2, the actual furnace test was not carried out. In Comparative Examples 3 and 4, the hardening time was short but durability on the actual furnace test was no good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Ceramic Products (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
US12/600,726 2007-05-18 2008-04-10 Hot casting repair mix Abandoned US20100152321A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007133444A JP4865636B2 (ja) 2007-05-18 2007-05-18 焼付け補修材
JP2007-133444 2007-05-18
PCT/JP2008/057083 WO2008142925A1 (ja) 2007-05-18 2008-04-10 焼付け補修材

Publications (1)

Publication Number Publication Date
US20100152321A1 true US20100152321A1 (en) 2010-06-17

Family

ID=40031641

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/600,726 Abandoned US20100152321A1 (en) 2007-05-18 2008-04-10 Hot casting repair mix

Country Status (8)

Country Link
US (1) US20100152321A1 (zh)
EP (1) EP2149541A4 (zh)
JP (1) JP4865636B2 (zh)
KR (1) KR20100016662A (zh)
AU (1) AU2008252219B2 (zh)
RU (1) RU2484061C2 (zh)
TW (1) TWI516463B (zh)
WO (1) WO2008142925A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491663A (zh) * 2011-12-20 2012-06-13 河北科技大学 一种复合型聚苯颗粒表面改性剂
CN108526452A (zh) * 2018-04-19 2018-09-14 东北大学 一种快速烘烤型中间包干式料及其制备方法
CN111606694A (zh) * 2020-06-17 2020-09-01 武汉钢铁有限公司 一种转炉碳质修补料及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5967767B2 (ja) * 2012-09-26 2016-08-10 黒崎播磨株式会社 焼付け補修材

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102694A (en) * 1975-05-28 1978-07-25 Sumitomo Metal Industries, Limited Refractory material for repairing blast furnaces
US6214081B1 (en) * 1997-05-07 2001-04-10 Shinagawa Refractories Co., Ltd. Hot repair mix comprising bisphenol as a fluidizing agent
US6548435B1 (en) * 1998-03-03 2003-04-15 Jerzy Bugajski Basic free-flowing casting material and preforms produced thereform
US20110034317A1 (en) * 2008-04-10 2011-02-10 Shinagawa Refractories Co., Ltd. Hot gunning repair mix

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617977A (en) * 1979-07-24 1981-02-20 Matsushita Electric Works Ltd Binder for refractories
JPS5874579A (ja) * 1981-10-26 1983-05-06 品川白煉瓦株式会社 炭素含有耐火物
JPS6086078A (ja) * 1983-10-14 1985-05-15 播磨耐火煉瓦株式会社 熱間補修用吹付材
JPS63226592A (ja) * 1987-03-16 1988-09-21 東芝セラミックス株式会社 熱間吹付補修材
JPH0226874A (ja) 1988-07-14 1990-01-29 Shinagawa Refract Co Ltd 金属精錬炉熱間補修用粉末状焼付補修材
RU2023018C1 (ru) * 1990-04-25 1994-11-15 Новолипецкий металлургический комбинат Масса для торкретирования тепловых агрегатов
JPH0791119B2 (ja) * 1990-11-28 1995-10-04 品川炉材株式会社 熱間補修材
JP3049201B2 (ja) * 1995-09-21 2000-06-05 キョウエイ製鐵株式会社 直流式電気炉陽極ブロック補修方法
JPH11189462A (ja) * 1997-12-26 1999-07-13 Kawasaki Steel Corp スライディングノズルプレート用不焼成型れんが
JP3699588B2 (ja) * 1998-02-27 2005-09-28 九州耐火煉瓦株式会社 焼き付け補修材
JPH11278948A (ja) * 1998-03-30 1999-10-12 Harima Ceramic Co Ltd 焼付け補修材
JP2000007447A (ja) * 1998-06-26 2000-01-11 Nippon Steel Corp 塩基性不定形耐火物
JP3729495B2 (ja) * 2002-08-27 2005-12-21 品川白煉瓦株式会社 焼付補修材
JP4166760B2 (ja) * 2005-02-24 2008-10-15 電気化学工業株式会社 窒化珪素鉄粉末、その製造方法及び耐火物
JP4476268B2 (ja) * 2006-10-13 2010-06-09 品川リフラクトリーズ株式会社 熱間吹付け補修材
JP4527706B2 (ja) * 2006-11-13 2010-08-18 品川リフラクトリーズ株式会社 熱間吹付け補修材
JP4937787B2 (ja) 2007-02-23 2012-05-23 シャープ株式会社 液晶表示装置及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102694A (en) * 1975-05-28 1978-07-25 Sumitomo Metal Industries, Limited Refractory material for repairing blast furnaces
US6214081B1 (en) * 1997-05-07 2001-04-10 Shinagawa Refractories Co., Ltd. Hot repair mix comprising bisphenol as a fluidizing agent
US6548435B1 (en) * 1998-03-03 2003-04-15 Jerzy Bugajski Basic free-flowing casting material and preforms produced thereform
US20110034317A1 (en) * 2008-04-10 2011-02-10 Shinagawa Refractories Co., Ltd. Hot gunning repair mix

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491663A (zh) * 2011-12-20 2012-06-13 河北科技大学 一种复合型聚苯颗粒表面改性剂
CN108526452A (zh) * 2018-04-19 2018-09-14 东北大学 一种快速烘烤型中间包干式料及其制备方法
CN111606694A (zh) * 2020-06-17 2020-09-01 武汉钢铁有限公司 一种转炉碳质修补料及其制备方法

Also Published As

Publication number Publication date
RU2009147038A (ru) 2011-06-27
TWI516463B (zh) 2016-01-11
EP2149541A4 (en) 2012-01-25
EP2149541A1 (en) 2010-02-03
EP2149541A8 (en) 2010-04-07
JP2008285379A (ja) 2008-11-27
AU2008252219B2 (en) 2013-10-24
WO2008142925A1 (ja) 2008-11-27
RU2484061C2 (ru) 2013-06-10
AU2008252219A1 (en) 2008-11-27
KR20100016662A (ko) 2010-02-12
TW200911726A (en) 2009-03-16
JP4865636B2 (ja) 2012-02-01

Similar Documents

Publication Publication Date Title
CN103420683A (zh) 一种中包用低碳刚玉尖晶石冲击砖及其制备方法
US4280844A (en) Refractory brick for molding molten steel
US20100152321A1 (en) Hot casting repair mix
CN104402468B (zh) 一种钢包倒渣部位用复合材料及其制备工艺
JP6154772B2 (ja) アルミナ−炭化珪素−炭素質れんが
JP6420748B2 (ja) 溶融金属を保持する容器のライニングに用いる不焼成炭化珪素含有ハイアルミナ質れんが
JP2556786B2 (ja) 焼付補修材および焼付補修材を用いた窯炉焼付補修方法
JPS61106465A (ja) 耐火セメント
JP3699588B2 (ja) 焼き付け補修材
JP6358736B2 (ja) ドライコート材
JP2002121081A (ja) 早期焼結性熱間補修用焼付け補修材
JPH11278948A (ja) 焼付け補修材
JP2018052752A (ja) 高炉樋の継ぎ足し施工用不定形耐火物及びその施工方法
JPS60200857A (ja) 溶融金属処理用耐火物
JP3783254B2 (ja) 熱間焼付補修材
JPS6159364B2 (zh)
JP3223039B2 (ja) 高耐用性焼付補修材
JPS5915115B2 (ja) アルミナ−クロム系振動成形材
CN115872729A (zh) 一种鱼雷罐工作层用修补料
JPH07291710A (ja) 黒鉛含有耐火れんが
CN106588058A (zh) 一种铁水熔炼及大型容器工作层用高强复合材料及制法
JPH07300368A (ja) 速硬性高耐用焼付補修材
JPH03150272A (ja) 塩基性質流し込み施工用耐火物の製造方法
JP2000128649A (ja) 熱間焼き付け補修材
JPH06287072A (ja) 樹脂結合炭素含有不定形耐火物

Legal Events

Date Code Title Description
AS Assignment

Owner name: SHINAGAWA REFRACTORIES, CO., LTD.,JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NAMBA, MAKOTO;SASAKI, HISAHARU;KOMATSUBARA, KIYOYUKI;AND OTHERS;REEL/FRAME:023535/0833

Effective date: 20091111

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION