ES486145A1 - Un procedimiento mejorado para el afino de acero fundido - Google Patents

Un procedimiento mejorado para el afino de acero fundido

Info

Publication number
ES486145A1
ES486145A1 ES486145A ES486145A ES486145A1 ES 486145 A1 ES486145 A1 ES 486145A1 ES 486145 A ES486145 A ES 486145A ES 486145 A ES486145 A ES 486145A ES 486145 A1 ES486145 A1 ES 486145A1
Authority
ES
Spain
Prior art keywords
slopping
oxygen
argon
control
basic oxygen
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
ES486145A
Other languages
English (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.)
National Steel Corp
Union Carbide Corp
Original Assignee
National Steel Corp
Union Carbide 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 National Steel Corp, Union Carbide Corp filed Critical National Steel Corp
Publication of ES486145A1 publication Critical patent/ES486145A1/es
Expired 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • 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
    • 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
    • C21C5/36—Processes yielding slags of special composition
    • C21C2005/366—Foam slags

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Un procedimiento mejorado para el afino de acero fundido contenido en un convertidor por inyección de oxígeno en la colada por encima de la superficie de la colada con lo que se forma una emulsión encima de dicha superficie, en el que la mejora comprende: prevenir el salpicado tumultuoso de dicha emulsión desde dicho convertidor por: (a) inyección de un gas inerte en el convertidor cuando el salpicado tumultuoso es inminente o ha comenzado, a un caudal suficiente para detener el salpicado tumultuoso, mientras que se continúa la inyección con oxígeno, y (b) interrupción de la inyección de gas inerte en el convertidor cuando el salpicado tumultuoso ha cesado o ya no es inminente.
ES486145A 1979-02-07 1979-11-20 Un procedimiento mejorado para el afino de acero fundido Expired ES486145A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/010,316 US4210442A (en) 1979-02-07 1979-02-07 Argon in the basic oxygen process to control slopping

Publications (1)

Publication Number Publication Date
ES486145A1 true ES486145A1 (es) 1980-06-16

Family

ID=21745186

Family Applications (1)

Application Number Title Priority Date Filing Date
ES486145A Expired ES486145A1 (es) 1979-02-07 1979-11-20 Un procedimiento mejorado para el afino de acero fundido

Country Status (25)

Country Link
US (1) US4210442A (es)
JP (1) JPS55110714A (es)
KR (1) KR850000516B1 (es)
AU (1) AU5262979A (es)
BE (1) BE880006A (es)
BR (1) BR7907470A (es)
CA (1) CA1141963A (es)
DD (1) DD148791A5 (es)
DE (1) DE2944771C2 (es)
ES (1) ES486145A1 (es)
FI (1) FI61520C (es)
FR (1) FR2448571B1 (es)
GB (1) GB2041410B (es)
IN (1) IN153387B (es)
IT (1) IT1164763B (es)
LU (1) LU81971A1 (es)
MX (1) MX154122A (es)
NL (1) NL7908518A (es)
NO (1) NO793676L (es)
PH (1) PH15269A (es)
PL (1) PL219892A1 (es)
RO (1) RO78381A (es)
SE (1) SE7909369L (es)
YU (1) YU288879A (es)
ZA (1) ZA795966B (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU81207A1 (fr) * 1979-04-30 1980-12-16 Arbed Procede d'affinage d'un bain de metal contenant des matieres refroidissantes solides
US4278464A (en) * 1979-12-27 1981-07-14 Union Carbide Corporation Method for preventing slopping during subsurface pneumatic refining of steel
DE3110569A1 (de) * 1981-03-18 1982-12-30 Skw Trostberg Ag, 8223 Trostberg Verfahren zur verhinderung des ueberschaeumens beim frischen von roheisen sowie zur erniedrigung des phosphorgehaltes, mittel und vorrichtung zur durchfuehrung des verfahrens
NL189008C (nl) * 1981-11-18 1992-12-01 Hoogovens Groep Bv Gasdoorlatend wandelement voor een met vuurvast materiaal bekleed metallurgisch vat, in het bijzonder voor een l.d.-staalconverter.
US4488903A (en) * 1984-03-14 1984-12-18 Union Carbide Corporation Rapid decarburization steelmaking process
JPS6173817A (ja) * 1984-09-18 1986-04-16 Sumitomo Electric Ind Ltd 溶鋼制御精錬法および精錬装置
AT405526B (de) * 1995-03-30 1999-09-27 Voest Alpine Stahl Donawitz Verfahren und vorrichtung zur begrenzung des schaumschlackenvolumens in einem metallurgischen gefäss
US5902557A (en) * 1995-05-30 1999-05-11 Nippon Steel Corporation Device for purifying exhaust gas of internal combustion engine
US6125133A (en) * 1997-03-18 2000-09-26 Praxair, Inc. Lance/burner for molten metal furnace
US5814125A (en) * 1997-03-18 1998-09-29 Praxair Technology, Inc. Method for introducing gas into a liquid
US5897684A (en) * 1997-04-17 1999-04-27 Ltv Steel Company, Inc. Basic oxygen process with iron oxide pellet addition
US6096261A (en) * 1997-11-20 2000-08-01 Praxair Technology, Inc. Coherent jet injector lance
US6176894B1 (en) 1998-06-17 2001-01-23 Praxair Technology, Inc. Supersonic coherent gas jet for providing gas into a liquid
KR100423420B1 (ko) * 1999-09-27 2004-03-19 주식회사 포스코 전로 취련중 슬로핑 방지방법
KR20040020446A (ko) * 2002-08-30 2004-03-09 주식회사 포스코 내화성능이 우수한 천정구조
WO2008076901A1 (en) * 2006-12-15 2008-06-26 Praxair Technology, Inc. Injection method for inert gas

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL270519A (es) * 1960-11-18
AT337736B (de) * 1973-02-12 1977-07-11 Voest Ag Verfahren zum frischen von roheisen
US3960546A (en) * 1974-05-22 1976-06-01 United States Steel Corporation Method for eliminating nose-skulls from steelmaking vessels
US4004920A (en) * 1975-05-05 1977-01-25 United States Steel Corporation Method of producing low nitrogen steel
JPS51108609A (en) * 1975-03-20 1976-09-27 Sumitomo Metal Ind Sansowabukitenrono suirenho
JPS5270906A (en) * 1975-10-30 1977-06-13 Nippon Steel Corp Prevention of slopping of converter
GB1586762A (en) * 1976-05-28 1981-03-25 British Steel Corp Metal refining method and apparatus

Also Published As

Publication number Publication date
IN153387B (es) 1984-07-14
GB2041410A (en) 1980-09-10
YU288879A (en) 1982-10-31
KR850000516B1 (ko) 1985-04-12
FI61520C (fi) 1982-08-10
GB2041410B (en) 1982-11-03
KR830002043A (ko) 1983-05-21
FI61520B (fi) 1982-04-30
BR7907470A (pt) 1981-05-19
JPS55110714A (en) 1980-08-26
FI793614A (fi) 1980-08-08
DE2944771C2 (de) 1982-02-04
US4210442A (en) 1980-07-01
FR2448571B1 (fr) 1985-10-11
LU81971A1 (fr) 1980-07-01
DD148791A5 (de) 1981-06-10
BE880006A (fr) 1980-05-13
DE2944771A1 (de) 1980-08-21
MX154122A (es) 1987-05-20
FR2448571A1 (fr) 1980-09-05
CA1141963A (en) 1983-03-01
ZA795966B (en) 1980-10-29
IT1164763B (it) 1987-04-15
IT7950849A0 (it) 1979-11-16
RO78381A (ro) 1982-02-26
AU5262979A (en) 1980-08-14
NL7908518A (nl) 1980-08-11
NO793676L (no) 1980-08-08
PH15269A (en) 1982-11-02
PL219892A1 (es) 1980-09-08
SE7909369L (sv) 1980-08-08

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