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ES8302787A1 - Un procedimiento para refinar acero de alto contenido de cromo - Google Patents

Un procedimiento para refinar acero de alto contenido de cromo

Info

Publication number
ES8302787A1
ES8302787A1 ES510070A ES510070A ES8302787A1 ES 8302787 A1 ES8302787 A1 ES 8302787A1 ES 510070 A ES510070 A ES 510070A ES 510070 A ES510070 A ES 510070A ES 8302787 A1 ES8302787 A1 ES 8302787A1
Authority
ES
Spain
Prior art keywords
cast iron
chrome
converter
mixture
molten steel
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
ES510070A
Other languages
English (en)
Other versions
ES510070A0 (es
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of ES510070A0 publication Critical patent/ES510070A0/es
Publication of ES8302787A1 publication Critical patent/ES8302787A1/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
    • C21C5/005—Manufacture of stainless steel
    • 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
    • C21C5/35—Blowing from above and through the bath
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting

Landscapes

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

Abstract

PROCEDIMIENTO PARA REFINAR ACERO DE ALTO CONTENIDO DE CROMO. COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE PREPARA LA MEZCLA DE HIERRO FUNDIDO Y CROMO EN UN CONVERTIDOR CON INSUFLACCION SUPERIOR E INFERIOR; SEGUNDA, SE CALIENTA LA MEZCLA FUNDIDA HASTA UNA TEMPERATURA PREDETERMINADA; CUARTA, SE EFECTUA LA DESCARBURACION DEL HIERRO FUNDIDO MEDIANTE SOPLADO DE OXIGENO, POR UN EYECTOR SUPERIOR, PARA OBTENER ACERO FUNDIDO, MIENTRAS QUE COMO GAS DE SOPLADO INFERIOR SE UTILIZA EN PRINCIPIO UN GAS QUE CONTIENE OXIGENO, CAMBIANDOLO A CONTINUACION POR UN GAS INERTE CUANDO YA SE HA DESCARBURADO EL HIERRO FUNDIDO A UN NIVEL PREDETERMINADO, EN EL QUE EMPIEZA A OXIDARSE EL CROMO; Y POR ULTIMO, SE EXTRAE POR SANGRADO EL ACERO FUNDIDO OBTENIDO EN EL CONVERTIDOR.
ES510070A 1981-03-03 1982-03-02 Un procedimiento para refinar acero de alto contenido de cromo Expired ES8302787A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56030775A JPS57145917A (en) 1981-03-03 1981-03-03 Refining method for high chromium steel

Publications (2)

Publication Number Publication Date
ES510070A0 ES510070A0 (es) 1983-01-16
ES8302787A1 true ES8302787A1 (es) 1983-01-16

Family

ID=12313053

Family Applications (1)

Application Number Title Priority Date Filing Date
ES510070A Expired ES8302787A1 (es) 1981-03-03 1982-03-02 Un procedimiento para refinar acero de alto contenido de cromo

Country Status (15)

Country Link
US (1) US4474605A (es)
JP (1) JPS57145917A (es)
AT (1) AT383615B (es)
AU (1) AU536668B2 (es)
BE (1) BE892349A (es)
BR (1) BR8201078A (es)
CA (1) CA1177251A (es)
DE (1) DE3204632A1 (es)
ES (1) ES8302787A1 (es)
FR (1) FR2501236B1 (es)
GB (1) GB2093864B (es)
IT (1) IT1149679B (es)
LU (1) LU83981A1 (es)
NL (1) NL8200748A (es)
ZA (1) ZA82634B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529442A (en) * 1984-04-26 1985-07-16 Allegheny Ludlum Steel Corporation Method for producing steel in a top oxygen blown vessel
ATE107710T1 (de) * 1987-08-13 1994-07-15 Nippon Kokan Kk Ofen und verfahren zur reduktion eines chromvorproduktes durch schmelzen.
CA1333663C (en) * 1987-09-09 1994-12-27 Haruyoshi Tanabe Method of decarburizing high cr molten metal
DE3850394T2 (de) * 1987-09-10 1994-11-24 Nippon Kokan Kk Verfahren zur herstellung von geschmolzenem rostfreiem stahl.
JPH01215912A (ja) * 1988-02-24 1989-08-29 Kawasaki Steel Corp 含クロム溶鉄の製造方法
DE3918155A1 (de) * 1989-06-03 1990-12-06 Messer Griesheim Gmbh Verfahren zum entkohlen von chromhaltigen stahlschmelzen mit ueber 10% cr-gehalt
US5190577A (en) * 1990-12-11 1993-03-02 Liquid Air Corporation Replacement of argon with carbon dioxide in a reactor containing molten metal for the purpose of refining molten metal
JP2515059B2 (ja) * 1991-06-27 1996-07-10 新日本製鐵株式会社 含クロム溶鋼の脱炭精錬法
US5328658A (en) * 1993-08-04 1994-07-12 Daido Tokushuko Kabushiki Kaisha Method of refining chromium-containing steel
DE4328045C2 (de) * 1993-08-20 2001-02-08 Ald Vacuum Techn Ag Verfahren zum Entkohlen von kohlenstoffhaltigen Metallschmelzen
CN100439539C (zh) * 2007-02-15 2008-12-03 刘巍 低微碳铬铁合金的生产工艺
CN102808061B (zh) * 2012-08-22 2013-11-27 秦皇岛首秦金属材料有限公司 一种转炉内采用低镍生铁冶炼含镍钢的方法
CN102827989B (zh) * 2012-09-25 2013-09-04 鞍钢股份有限公司 一种低碳高铬钢的生产方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB858404A (en) * 1956-06-27 1961-01-11 Union Carbide Corp A method of lowering the carbon content of chromium-bearing steels
BE610265A (es) * 1960-11-18
US3850617A (en) * 1970-04-14 1974-11-26 J Umowski Refining of stainless steel
US3816720A (en) * 1971-11-01 1974-06-11 Union Carbide Corp Process for the decarburization of molten metal
DE2243839A1 (de) * 1972-09-07 1974-03-28 Kloeckner Werke Ag Verfahren zur herstellung kohlenstoffarmer hochchromhaltiger ferritischer staehle
AT337736B (de) * 1973-02-12 1977-07-11 Voest Ag Verfahren zum frischen von roheisen
US3854932A (en) * 1973-06-18 1974-12-17 Allegheny Ludlum Ind Inc Process for production of stainless steel
FR2273873A1 (fr) * 1974-06-07 1976-01-02 British Steel Corp Procede et installation pour produire un acier allie
DE2737832C3 (de) * 1977-08-22 1980-05-22 Fried. Krupp Huettenwerke Ag, 4630 Bochum Verwendung von im Querschnitt veränderlichen Blasdüsen zur Herstellung von rostfreien Stählen
JPS55115914A (en) * 1979-02-28 1980-09-06 Sumitomo Metal Ind Ltd Refining method of high chromium steel
JPS5613423A (en) * 1979-07-06 1981-02-09 Sumitomo Metal Ind Ltd Refining method for steel

Also Published As

Publication number Publication date
DE3204632A1 (de) 1982-09-16
FR2501236A1 (fr) 1982-09-10
US4474605A (en) 1984-10-02
ES510070A0 (es) 1983-01-16
FR2501236B1 (fr) 1986-04-11
JPS57145917A (en) 1982-09-09
ATA81782A (de) 1986-12-15
BR8201078A (pt) 1983-01-11
JPS6150122B2 (es) 1986-11-01
GB2093864A (en) 1982-09-08
ZA82634B (en) 1982-12-29
IT8219832A0 (it) 1982-02-24
IT1149679B (it) 1986-12-03
AU536668B2 (en) 1984-05-17
GB2093864B (en) 1986-01-15
AT383615B (de) 1987-07-27
NL8200748A (nl) 1982-10-01
DE3204632C2 (es) 1988-04-14
BE892349A (fr) 1982-07-01
LU83981A1 (fr) 1982-07-08
AU7998382A (en) 1982-09-09
CA1177251A (en) 1984-11-06

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