GB1417375A - Blast-furnace tuyere having excellent thermal-shock resistance and high durability - Google Patents

Blast-furnace tuyere having excellent thermal-shock resistance and high durability

Info

Publication number
GB1417375A
GB1417375A GB1167074A GB1167074A GB1417375A GB 1417375 A GB1417375 A GB 1417375A GB 1167074 A GB1167074 A GB 1167074A GB 1167074 A GB1167074 A GB 1167074A GB 1417375 A GB1417375 A GB 1417375A
Authority
GB
United Kingdom
Prior art keywords
layer
alloy
blast
zirconia
alumina
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.)
Expired
Application number
GB1167074A
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.)
Toyo Calorizing Industry Co Ltd
Original Assignee
Toyo Calorizing Industry 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 Toyo Calorizing Industry Co Ltd filed Critical Toyo Calorizing Industry Co Ltd
Publication of GB1417375A publication Critical patent/GB1417375A/en
Expired 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides

Abstract

1417375 Blast-furnace tuyere TOYO CALORIZING IND CO Ltd 15 March 1974 [23 April 1973] 11670/74 Heading B2E [Also in Division F4] A blast-furnace tuyÞre consists of a substrate 1 of copper or copper alloy, a nickel or cobalt base metallized self-fluxing alloy layer 5, a zirconia or alumina base cement layer 4 and a zirconia or alumina ceramic coating 3. The tuyÞre is manufactured by roughening the surface of the substrate 1 and spraying on the alloy layer 5, followed by the cement layer 4 and the ceramic layer 3 using plasma jet or oxy-acetylene flame as a heat source. The zirconia or alumina in the ceramic coating 3 has a purity of more than 90%. The layers 5, 4 and 3 may include various quantities of chromium, silicon, boron, tungsten, nickel-chromium alloy and nickelaluminium alloy. The layers 5 and 4 may have a thickness of 50-150 microns and the ceramic layer 3 may have a thickness of 100-300 microns.
GB1167074A 1973-04-23 1974-03-15 Blast-furnace tuyere having excellent thermal-shock resistance and high durability Expired GB1417375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48045017A JPS5222724B2 (en) 1973-04-23 1973-04-23

Publications (1)

Publication Number Publication Date
GB1417375A true GB1417375A (en) 1975-12-10

Family

ID=12707570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1167074A Expired GB1417375A (en) 1973-04-23 1974-03-15 Blast-furnace tuyere having excellent thermal-shock resistance and high durability

Country Status (3)

Country Link
JP (1) JPS5222724B2 (en)
FR (1) FR2226469B1 (en)
GB (1) GB1417375A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1390549A4 (en) * 2001-03-19 2004-10-20 Praxair Technology Inc Metal-zirconia composite coating
CN102766710A (en) * 2012-07-12 2012-11-07 承德金章机械配件加工有限公司 Restoration method for tuyere small sleeve of blast furnace
WO2013044902A3 (en) * 2011-09-26 2013-07-11 Salzgitter Flachstahl Gmbh Blast furnace tuyere

Families Citing this family (2)

* 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
JPS58167764A (en) * 1982-03-26 1983-10-04 Toyo Eng Corp Method for coating heat resistant alloy substrate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1390549A4 (en) * 2001-03-19 2004-10-20 Praxair Technology Inc Metal-zirconia composite coating
WO2013044902A3 (en) * 2011-09-26 2013-07-11 Salzgitter Flachstahl Gmbh Blast furnace tuyere
CN102766710A (en) * 2012-07-12 2012-11-07 承德金章机械配件加工有限公司 Restoration method for tuyere small sleeve of blast furnace
CN102766710B (en) * 2012-07-12 2015-09-30 承德金章机械配件加工有限公司 Restoration method for tuyere

Also Published As

Publication number Publication date
DE2419584A1 (en) 1974-10-31
DE2419584B2 (en) 1977-06-02
FR2226469A1 (en) 1974-11-15
JPS5222724B2 (en) 1977-06-20
FR2226469B1 (en) 1978-03-31
JPS49130810A (en) 1974-12-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930315