FR2421946A1 - IMPROVEMENTS FOR HIGH RANGE PIPES - Google Patents

IMPROVEMENTS FOR HIGH RANGE PIPES

Info

Publication number
FR2421946A1
FR2421946A1 FR7813971A FR7813971A FR2421946A1 FR 2421946 A1 FR2421946 A1 FR 2421946A1 FR 7813971 A FR7813971 A FR 7813971A FR 7813971 A FR7813971 A FR 7813971A FR 2421946 A1 FR2421946 A1 FR 2421946A1
Authority
FR
France
Prior art keywords
weight
coating
cermet
sprayed onto
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7813971A
Other languages
French (fr)
Other versions
FR2421946B1 (en
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of FR2421946A1 publication Critical patent/FR2421946A1/en
Application granted granted Critical
Publication of FR2421946B1 publication Critical patent/FR2421946B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material

Abstract

Tuyère de haut fourneau constituée d'un substrat de tuyère composé de cuivre ou d'un alliage de cuivre, d'une couche métallisée d'alliage auto-fondant pulvérisé sur la surface du substrat, un revêtement de cermet pulvérisé sur la surface de la couche métallisée et un revêtement céramique pulvérisé sur la surface du revêtement de cermet, cette tuyère étant caractérisée en ce que le revêtement de cermet est constitué d'un mélange d'un matériau d'alliage constitué essentiellement de 5 à 60 % en poids de cobalt, de 5 à 50 % en poids de nickel, de 5 à 25 % en poids de chrome, de 5 à 40 % en poids de molybdène, de à 40 % en poids de tungstène, de 3 à 40 % en poids de silicium et des impuretés inévitables et d'un matériau céramique de structure eutectique, constitué essentiellement de 95 à 65 % en poids de Al 2 O3 , de 5 à 30 % en poids de ZrO2 , de 2 à 20 % en poids de TiO2 , de 3 à 30 % en poids de SiO2 et des impuretés inévitables et, en ce que le revêtement céramique est constitué du même matériau céramique que celui utilisé pour la formation du revêtement de cermet.Blast furnace nozzle consisting of a nozzle substrate made of copper or a copper alloy, a metallized layer of self-melting alloy sprayed onto the surface of the substrate, a coating of cermet sprayed onto the surface of the metallized layer and a ceramic coating sprayed onto the surface of the cermet coating, this nozzle being characterized in that the cermet coating consists of a mixture of an alloy material consisting essentially of 5 to 60% by weight of cobalt , 5 to 50% by weight of nickel, 5 to 25% by weight of chromium, 5 to 40% by weight of molybdenum, from 40% by weight of tungsten, from 3 to 40% by weight of silicon and inevitable impurities and a ceramic material of eutectic structure, consisting essentially of 95 to 65% by weight of Al 2 O3, from 5 to 30% by weight of ZrO2, from 2 to 20% by weight of TiO2, from 3 to 30% by weight of SiO2 and inevitable impurities and, in that the ceramic coating consists of the same ceramic material than that used for forming the cermet coating.

FR7813971A 1977-05-12 1978-05-11 IMPROVEMENTS FOR HIGH RANGE PIPES Granted FR2421946A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5453277A JPS53138905A (en) 1977-05-12 1977-05-12 Blast furnace exit

Publications (2)

Publication Number Publication Date
FR2421946A1 true FR2421946A1 (en) 1979-11-02
FR2421946B1 FR2421946B1 (en) 1980-09-19

Family

ID=12973269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813971A Granted FR2421946A1 (en) 1977-05-12 1978-05-11 IMPROVEMENTS FOR HIGH RANGE PIPES

Country Status (5)

Country Link
JP (1) JPS53138905A (en)
BR (1) BR7802975A (en)
DE (1) DE2820699C2 (en)
FR (1) FR2421946A1 (en)
GB (1) GB1601747A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137731A1 (en) * 1981-09-23 1983-04-14 Battelle-Institut E.V., 6000 Frankfurt HIGH TEMPERATURE AND THERMAL SHOCK RESISTANT COMPACT MATERIALS AND COATINGS
IL75304A (en) * 1984-06-08 1989-03-31 United Technologies Corp Coated superalloy articles and method of strengthening same
JPS61116748U (en) * 1985-12-19 1986-07-23
DE3724995A1 (en) * 1987-02-26 1988-09-08 Radex Heraklith Process for manufacturing a composite body and the composite body itself
JP3312709B2 (en) * 1994-10-24 2002-08-12 新日本製鐵株式会社 Immersion roll for continuous galvanizing
US6503347B1 (en) 1996-04-30 2003-01-07 Surface Engineered Products Corporation Surface alloyed high temperature alloys
CA2175439C (en) * 1996-04-30 2001-09-04 Sabino Steven Anthony Petrone Surface alloyed high temperature alloys
JPH11217611A (en) * 1998-01-30 1999-08-10 Kobe Steel Ltd Tuyere for blast furnace
DE102011114737B3 (en) 2011-09-26 2012-12-20 Salzgitter Flachstahl Gmbh Hochofenblasform
RU2596548C2 (en) * 2015-02-03 2016-09-10 Открытое акционерное общество "Новолипецкий металлургический комбинат" Method for preparing for operation of air tuyere of blast furnace
JP7215010B2 (en) * 2018-08-03 2023-01-31 日本製鉄株式会社 Blast furnace tuyere and manufacturing method thereof
CN112851307B (en) * 2021-01-20 2022-08-09 山东钢铁股份有限公司 High-temperature-resistant ceramic material for surface of blast furnace tuyere and preparation method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091548A (en) * 1959-12-15 1963-05-28 Union Carbide Corp High temperature coatings
FR1500175A (en) * 1965-08-06 1967-11-03 Montedison Spa Protective coatings on metallic materials, ferrous or not, capable of forming an antioxidant screen and heat shield, obtained by combining the powders of a metallic alloy, a metal and an oxide
DE2127690A1 (en) * 1971-06-04 1973-01-25 Hans Kaemmerer Fa Blast furnace blow moulds - having a nickel based and ceramic layered coating to improve lifetime
FR2300139A1 (en) * 1975-02-10 1976-09-03 Union Carbide Corp METAL ELEMENT EQUIPPED WITH A PROTECTIVE COATING BASED ON CHROME CARBIDE
FR2364276A1 (en) * 1976-09-09 1978-04-07 Union Carbide Corp OBJECT PROTECTED BY A COATING AND ITS MANUFACTURING PROCESS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069760A (en) * 1958-06-11 1962-12-25 United States Steel Corp Ceramic coated tuyeres or the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091548A (en) * 1959-12-15 1963-05-28 Union Carbide Corp High temperature coatings
FR1500175A (en) * 1965-08-06 1967-11-03 Montedison Spa Protective coatings on metallic materials, ferrous or not, capable of forming an antioxidant screen and heat shield, obtained by combining the powders of a metallic alloy, a metal and an oxide
DE2127690A1 (en) * 1971-06-04 1973-01-25 Hans Kaemmerer Fa Blast furnace blow moulds - having a nickel based and ceramic layered coating to improve lifetime
FR2300139A1 (en) * 1975-02-10 1976-09-03 Union Carbide Corp METAL ELEMENT EQUIPPED WITH A PROTECTIVE COATING BASED ON CHROME CARBIDE
FR2364276A1 (en) * 1976-09-09 1978-04-07 Union Carbide Corp OBJECT PROTECTED BY A COATING AND ITS MANUFACTURING PROCESS

Also Published As

Publication number Publication date
JPS53138905A (en) 1978-12-04
BR7802975A (en) 1978-12-26
DE2820699C2 (en) 1982-07-29
GB1601747A (en) 1981-11-04
FR2421946B1 (en) 1980-09-19
DE2820699A1 (en) 1978-11-16
JPS5739311B2 (en) 1982-08-20

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Legal Events

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