GB1323448A - Aluminium/refractory-coated lance - Google Patents

Aluminium/refractory-coated lance

Info

Publication number
GB1323448A
GB1323448A GB1323448DA GB1323448A GB 1323448 A GB1323448 A GB 1323448A GB 1323448D A GB1323448D A GB 1323448DA GB 1323448 A GB1323448 A GB 1323448A
Authority
GB
United Kingdom
Prior art keywords
refractory
tio
sio
sic
layer
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
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.)
British Steel Corp
Original Assignee
British 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 British Steel Corp filed Critical British Steel Corp
Publication of GB1323448A publication Critical patent/GB1323448A/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
    • C23C4/04—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
    • C23C4/08—Metallic material containing only metal elements
    • 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
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/4613—Refractory coated lances; Immersion lances
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

1323448 Refractory coatings BRITISH STEEL CORP 29 Nov 1971 [30 Nov 1970] 56730/70 Heading C7F [Also in Division F4] A steel-making lance is coated with (a) a layer containing Al, secondly (b) a refractory layer containing SiC and/or Si and finally (c) a further layer containing Al. Layers (a) and (c) may be Al, or Al plus Si and/or Ti, and may be applied in several ways, preferably by a metallizing process, e.g. flame-spraying. The intermediate layer may additionally comprise B, Cr, Mo, Ti, Zr or their carbides, certain B-Mo, B-Ti, B-Zr, Al-Si, Cr-Fe, Cr-Si and Si-Zr alloys, refractory oxides, e.g. Al 2 O 3 , Cr 2 O 3 , SiO 2 , TiO 2 , refractory nitrides, e.g. titanium nitride, and silicides, e.g. Cr 3 Si, MOSi 2 , TiS 2 , or substances that can be converted into refractory materials after deposition, e.g. H 3 BO 3 , TiO 2 .Al 2 O 3 , TiO 2 . SiO 2 , and ZrO 2 . SiO 2 . This layer may also be applied in several ways, but preferably by electric arc or flame spray coating. Preferably the intermediate layer comprises 15-30% SiC, 15-30% Si, 15-30% TiO 2 , 10-15% H 3 BO 3 and 15-30% Al powder. In an example, a steel lance is coated with (a) Al, (b) 22% SiC, 20% Si, 25% TiO 2 , 13% H 3 BO 3 , 20% Al, (c) Al; all coatings being applied by flame spraying. The ingredients of layer (b) may be enclosed in a sheath of Al or plastics, e.g. cellulose acetate, which is destroyed on spraying.
GB1323448D 1970-11-30 1970-11-30 Aluminium/refractory-coated lance Expired GB1323448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5673070 1970-11-30

Publications (1)

Publication Number Publication Date
GB1323448A true GB1323448A (en) 1973-07-18

Family

ID=10477390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1323448D Expired GB1323448A (en) 1970-11-30 1970-11-30 Aluminium/refractory-coated lance

Country Status (1)

Country Link
GB (1) GB1323448A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123129A (en) * 1982-07-06 1984-01-25 British Steel Corp Improvements in and relating to lances for introducing a flowable medium into a bath of molten metal.
US4630802A (en) * 1982-10-15 1986-12-23 Ifm Development Ab Nozzle for injection lance
GB2205859A (en) * 1987-06-04 1988-12-21 Mtu Muenchen Gmbh An article or material of composite structure
GB2239264A (en) * 1989-12-19 1991-06-26 Mtu Muenchen Gmbh Method for depositing wear-resistant dispersion coatings
WO2011018197A1 (en) 2009-08-10 2011-02-17 Sms Siemag Ag Lance for a smelting vessel system or a metallurgical reaction vessel
WO2012075980A1 (en) * 2010-12-06 2012-06-14 Sms Siemag Ag Lance for a furnace crucible system or a metallurgical reaction vessel
EP3428534A1 (en) * 2017-07-13 2019-01-16 Steinmüller Engineering GmbH Highly heat resistant, highly erosion resistant lance system, reaction space containing the lance system and method for reducing the concentration of pollutants in combustion gases

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123129A (en) * 1982-07-06 1984-01-25 British Steel Corp Improvements in and relating to lances for introducing a flowable medium into a bath of molten metal.
US4630802A (en) * 1982-10-15 1986-12-23 Ifm Development Ab Nozzle for injection lance
GB2205859A (en) * 1987-06-04 1988-12-21 Mtu Muenchen Gmbh An article or material of composite structure
GB2205859B (en) * 1987-06-04 1992-01-15 Mtu Muenchen Gmbh An article or body of composite material
GB2239264A (en) * 1989-12-19 1991-06-26 Mtu Muenchen Gmbh Method for depositing wear-resistant dispersion coatings
GB2239264B (en) * 1989-12-19 1993-10-06 Mtu Muenchen Gmbh Method for depositing wear-resistant dispersion coatings
WO2011018197A1 (en) 2009-08-10 2011-02-17 Sms Siemag Ag Lance for a smelting vessel system or a metallurgical reaction vessel
WO2012075980A1 (en) * 2010-12-06 2012-06-14 Sms Siemag Ag Lance for a furnace crucible system or a metallurgical reaction vessel
EP3428534A1 (en) * 2017-07-13 2019-01-16 Steinmüller Engineering GmbH Highly heat resistant, highly erosion resistant lance system, reaction space containing the lance system and method for reducing the concentration of pollutants in combustion gases

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Legal Events

Date Code Title Description
PS Patent sealed