ES463079A1 - Un procedimiento mejorado para la obtencion de acero. - Google Patents

Un procedimiento mejorado para la obtencion de acero.

Info

Publication number
ES463079A1
ES463079A1 ES463079A ES463079A ES463079A1 ES 463079 A1 ES463079 A1 ES 463079A1 ES 463079 A ES463079 A ES 463079A ES 463079 A ES463079 A ES 463079A ES 463079 A1 ES463079 A1 ES 463079A1
Authority
ES
Spain
Prior art keywords
basic
renitrogenation
during decarburization
steels during
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
ES463079A
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.)
Union Carbide Corp
Original Assignee
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES463079A1 publication Critical patent/ES463079A1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

Un procedimiento mejorado para la producción de acero descarburizando una masa fundida férrea contenida en un recipiente por inyección de oxígeno en la masa fundida desde encima de su superficie, comprendiendo dicha mejora: producir acero que tiene un contenido de nitrógeno elevado, dentro de un intervalo previamente preseleccionado por: (a) introducir un gas rico en nitrógeno en la masa fundida, simultáneamente con dicho oxígeno durante la última parte de la etapa de descarburización, en una cantidad al menos igual a 3 M3N de nitrógeno por tonelada métrica de metal fundido y de tal forma que promueva una interacción intensiva del gas rico en nitrógeno con el metal fundido, (b) afinar la masa fundida con el oxígeno y el gas rico en nitrógeno inyectando la masa fundida hasta un contenido de manganesa final al menos tan bajo como 0,10% , y (c) mantener la presión parcial del nitrógeno en el espacio de cabeza del recipiente al menos igual a la calculada para estar en equilibrio conel contenido de nitrógeno disuelto esperado del metal fundido a 1600ºC.
ES463079A 1977-04-11 1977-10-10 Un procedimiento mejorado para la obtencion de acero. Expired ES463079A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/786,593 US4081270A (en) 1977-04-11 1977-04-11 Renitrogenation of basic-oxygen steels during decarburization

Publications (1)

Publication Number Publication Date
ES463079A1 true ES463079A1 (es) 1978-07-01

Family

ID=25139039

Family Applications (1)

Application Number Title Priority Date Filing Date
ES463079A Expired ES463079A1 (es) 1977-04-11 1977-10-10 Un procedimiento mejorado para la obtencion de acero.

Country Status (24)

Country Link
US (1) US4081270A (es)
JP (1) JPS53128520A (es)
AT (1) ATA780677A (es)
AU (1) AU513328B2 (es)
BE (1) BE859514A (es)
BR (1) BR7706773A (es)
DD (1) DD134651A5 (es)
DE (1) DE2745704A1 (es)
ES (1) ES463079A1 (es)
FI (1) FI62143C (es)
FR (1) FR2387290A1 (es)
GB (1) GB1533518A (es)
IN (1) IN147144B (es)
IT (1) IT1091308B (es)
LU (1) LU78298A1 (es)
NL (1) NL7711162A (es)
NO (1) NO146438C (es)
PH (1) PH14187A (es)
PL (1) PL201441A1 (es)
RO (1) RO75122A (es)
SE (1) SE7711342L (es)
TR (1) TR20639A (es)
YU (1) YU240877A (es)
ZA (1) ZA775628B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7906404L (sv) * 1978-08-28 1980-02-29 Aikoh Co Lansror
US4373949A (en) * 1979-02-07 1983-02-15 Union Carbide Corporation Method for increasing vessel lining life for basic oxygen furnaces
US5417739A (en) * 1993-12-30 1995-05-23 Ltv Steel Company, Inc. Method of making high nitrogen content steel
CN1038347C (zh) * 1994-08-03 1998-05-13 宝山钢铁(集团)公司 低氢高氮钢生产工艺
US5865876A (en) * 1995-06-07 1999-02-02 Ltv Steel Company, Inc. Multipurpose lance
FR2739105B1 (fr) * 1995-09-21 1998-04-30 Lorraine Laminage Procede de fabrication d'une bande metallique pour emballages et emballages metalliques obtenus par ce procede
US5830259A (en) * 1996-06-25 1998-11-03 Ltv Steel Company, Inc. Preventing skull accumulation on a steelmaking lance
US5885323A (en) * 1997-04-25 1999-03-23 Ltv Steel Company, Inc. Foamy slag process using multi-circuit lance
JP5003409B2 (ja) * 2007-10-24 2012-08-15 住友金属工業株式会社 高窒素鋼の溶製方法
CN103361464B (zh) * 2012-03-29 2014-12-24 山西太钢不锈钢股份有限公司 一种转炉炉底吹氧的方法
WO2014120028A1 (en) 2013-01-29 2014-08-07 Ux2 Centrum Technologiczne Sp. Z.O.O. The lock of the connection set for structural elements, the connection set with locks and the method of joining constructional elements with the use of the connection set
CN113416881A (zh) * 2021-06-15 2021-09-21 太原重工股份有限公司 含氮钢种冶炼中的精准控氮方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1066746A (fr) * 1951-11-23 1954-06-09 Voest Ag Procédé de production d'un acier non stabilisé riche en azote et exempt de bullesgazeuses, destiné aux tours automatiques et machines-outils similaires
US2826489A (en) * 1953-12-18 1958-03-11 Nyby Bruk Ab Method for the manufacture of gas-pure metals and alloys
US2803533A (en) * 1954-05-03 1957-08-20 Union Carbide Corp Method of injecting fluidized powders for metallurgical treatment
US3180726A (en) * 1960-03-31 1965-04-27 Ishikawajima Harima Heavy Ind Method for producing nitride-bearing low-carbon ductile steel
BE610265A (es) * 1960-11-18
US3134668A (en) * 1961-03-06 1964-05-26 Robert D Pehlke Liquid iron-based metal and method of producing same
GB1007051A (en) * 1962-05-11 1965-10-13 Ishikawajima Harima Heavy Ind Method for nitrogen-enrichment of molten steel covered with slag
US3257197A (en) * 1963-04-17 1966-06-21 Union Carbide Corp Method for adding nitrogen to molten metals
AT274877B (de) * 1964-05-12 1969-10-10 Boehler & Co Ag Geb Verfahren zur Herstellung von hoch stickstofflegiertem Stahl
BE755456A (fr) * 1969-08-29 1971-03-01 Allegheny Ludlum Ind Inc Decarburation de l'acier fondu
US3725041A (en) * 1970-09-25 1973-04-03 Allegheny Ludlum Ind Inc Deoxidizing metal
US3754894A (en) * 1972-04-20 1973-08-28 Joslyn Mfg & Supply Co Nitrogen control in argon oxygen refining of molten metal
DE2237498B2 (de) * 1972-07-31 1974-07-25 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Verfahren zum Aufsticken von Stahlschmelzen
JPS4935211A (es) * 1972-08-05 1974-04-01
US3854932A (en) * 1973-06-18 1974-12-17 Allegheny Ludlum Ind Inc Process for production of stainless steel
US4004920A (en) * 1975-05-05 1977-01-25 United States Steel Corporation Method of producing low nitrogen steel

Also Published As

Publication number Publication date
IN147144B (es) 1979-11-24
AU3006477A (en) 1979-05-03
FI62143C (fi) 1982-11-10
BR7706773A (pt) 1979-05-22
FR2387290B1 (es) 1984-02-10
ZA775628B (en) 1978-08-30
ATA780677A (de) 1983-03-15
NO146438B (no) 1982-06-21
FR2387290A1 (fr) 1978-11-10
NO773411L (no) 1978-10-12
IT1091308B (it) 1985-07-06
NO146438C (no) 1982-09-29
NL7711162A (nl) 1978-10-13
JPS53128520A (en) 1978-11-09
DE2745704A1 (de) 1978-10-19
GB1533518A (en) 1978-11-29
TR20639A (tr) 1982-03-16
DD134651A5 (de) 1979-03-14
PH14187A (en) 1981-03-26
LU78298A1 (es) 1978-06-12
AU513328B2 (en) 1980-11-27
RO75122A (ro) 1981-03-30
YU240877A (en) 1982-10-31
FI62143B (fi) 1982-07-30
PL201441A1 (pl) 1978-10-23
SE7711342L (sv) 1978-10-12
US4081270A (en) 1978-03-28
JPS5736331B2 (es) 1982-08-03
BE859514A (fr) 1978-04-07
FI772996A (fi) 1978-10-12

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980401