ES473216A1 - Un metodo para regular un procedimiento de fabricacion de acero - Google Patents

Un metodo para regular un procedimiento de fabricacion de acero

Info

Publication number
ES473216A1
ES473216A1 ES473216A ES473216A ES473216A1 ES 473216 A1 ES473216 A1 ES 473216A1 ES 473216 A ES473216 A ES 473216A ES 473216 A ES473216 A ES 473216A ES 473216 A1 ES473216 A1 ES 473216A1
Authority
ES
Spain
Prior art keywords
under reduced
making process
process under
steel making
reduced pressures
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
ES473216A
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.)
Nippon Steel Nisshin Co Ltd
Original Assignee
Nisshin Steel 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 Nisshin Steel Co Ltd filed Critical Nisshin Steel Co Ltd
Publication of ES473216A1 publication Critical patent/ES473216A1/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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising 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
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

Un método para regular un procedimiento de fabricación de acero que implica la descarburación de acero fundido en una zona cerrada a presiones reducidas y la evacuación compulsiva de un gas de escape, contentivo de CO, CO2 y N2, a partir de dicha zona cerrada, comprendiendo dicho método las fases de formar una mezcla íntima gaseosa del gas de escape y una cantidad medida de un gas de referencia que es inerte algas de escape; efectuar una verificación música espectrométrica de una muestra de dicha mezcla íntima para determinar las corrientes de ionización a fin de establecer los valores máximos seleccionados con los cuales se relacionan los CO, CO2, N2 y gas de referencia contenidos en dicha muestra; determinar el grado o cantidad de descarburación del acero fundido en el momento de efectuar la verificación a partir del valor medido de la cantidad del gas de referencia contenido en dicha mezcla y los valores medidos de las corrientes de ionización para establecer los valores máximos seleccionados; y regular el procedimiento de fabricación del acero con arreglo al valor determinado del grado o cantidad de descarburación del acero fundido.
ES473216A 1977-09-10 1978-09-08 Un metodo para regular un procedimiento de fabricacion de acero Expired ES473216A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10924777A JPS5442324A (en) 1977-09-10 1977-09-10 Control procedure of steel making process using mass spectrometer

Publications (1)

Publication Number Publication Date
ES473216A1 true ES473216A1 (es) 1979-03-16

Family

ID=14505334

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473216A Expired ES473216A1 (es) 1977-09-10 1978-09-08 Un metodo para regular un procedimiento de fabricacion de acero

Country Status (9)

Country Link
US (1) US4251269A (es)
JP (1) JPS5442324A (es)
BR (1) BR7805883A (es)
DE (1) DE2839315C2 (es)
ES (1) ES473216A1 (es)
FR (1) FR2402709A1 (es)
GB (1) GB2005726B (es)
SE (1) SE444818B (es)
ZA (1) ZA784998B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569319A (en) * 1979-07-05 1981-01-30 Nippon Steel Corp Vacuum treatment controller for molten steel
HU189326B (en) * 1983-08-26 1986-06-30 Lenin Kohaszati Muevek,Hu Process for production of steels with low or super-low carbon content with the regulation the end point of the carbon and blasting temperature
DE3706742A1 (de) * 1987-02-28 1988-09-08 Salzgitter Peine Stahlwerke Verfahren und vorrichtung zur entgasungsbehandlung einer stahlschmelze in einer vakuumanlage
SE8800321D0 (sv) * 1987-08-20 1988-02-02 Scandinavian Emission Tech Metallurgisk styrmetod
AT394395B (de) * 1989-01-13 1992-03-25 Veitscher Magnesitwerke Ag Metallurgisches gefaess und anordnung desselben
DE4243687C1 (de) * 1992-12-18 1994-02-17 Mannesmann Ag Vakuumanlage, insbesondere für die Sekundärmetallurgie
US5603749A (en) * 1995-03-07 1997-02-18 Bethlehem Steel Corporation Apparatus and method for vacuum treating molten steel
DE19745808C1 (de) * 1997-10-16 1998-12-10 Kuske Gmbh Vorrichtung zum Absaugen eines Meßgases aus einem unter Vakuum stehenden Prozessgasraumes
SE9800153D0 (sv) * 1998-01-21 1998-01-21 Hoeganaes Ab Low pressure process
FR2807066B1 (fr) * 2000-03-29 2002-10-11 Usinor Procede de brassage pneumatique du metal liquide en poche
DE102007044568A1 (de) * 2007-09-07 2009-03-12 Sms Demag Ag Indirekte Bestimmung der Abgasrate bei metallurgischen Prozessen
CA2755110C (en) * 2010-10-13 2014-07-15 Unisearch Associates Inc. Method and apparatus for improved process control and real-time determination of carbon content during vacuum degassing of molten metals
JP5760982B2 (ja) * 2011-11-25 2015-08-12 新日鐵住金株式会社 溶鋼の精錬方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520657A (en) * 1965-12-27 1970-07-14 Dravo Corp Method and apparatus for the analysis of off-gases in a refining process
LU55028A1 (es) * 1967-12-05 1969-07-17
US3594155A (en) * 1968-10-30 1971-07-20 Allegheny Ludlum Steel Method for dynamically controlling decarburization of steel
BE755456A (fr) * 1969-08-29 1971-03-01 Allegheny Ludlum Ind Inc Decarburation de l'acier fondu
US3700429A (en) * 1970-01-05 1972-10-24 Allegheny Ludlum Steel Method of controlling vacuum decarburization
US3666439A (en) * 1970-03-02 1972-05-30 Allegheny Ludlum Ind Inc Method of decarburizing alloy steels
LU63512A1 (es) * 1970-07-24 1971-11-16
US3920447A (en) * 1972-02-28 1975-11-18 Pennsylvania Engineering Corp Steel production method
LU70847A1 (es) * 1973-09-25 1975-01-02

Also Published As

Publication number Publication date
FR2402709B1 (es) 1984-05-18
SE7809501L (sv) 1979-03-11
ZA784998B (en) 1979-08-29
GB2005726B (en) 1982-05-26
US4251269A (en) 1981-02-17
GB2005726A (en) 1979-04-25
FR2402709A1 (fr) 1979-04-06
JPS6232248B2 (es) 1987-07-14
DE2839315C2 (de) 1985-08-01
SE444818B (sv) 1986-05-12
DE2839315A1 (de) 1979-03-22
JPS5442324A (en) 1979-04-04
BR7805883A (pt) 1979-05-02

Similar Documents

Publication Publication Date Title
ES473216A1 (es) Un metodo para regular un procedimiento de fabricacion de acero
JPS525679A (en) Method and composite for eliminating carbon dioxide from gas stream
ES473217A1 (es) Un metodo para regular un procedimiento de fabricacion de acero
JPS5268015A (en) Method and apparatus for continuous analysis blust furnace gas
JPS5220896A (en) Method of quick determination of rate of reduction of preliminary reduced ores and apparatus therefor
JPS5716165A (en) Gas cementation by nitrogen, org. liquid agent and hydrocarbon
ES8202593A1 (es) Un metodo para prevenir el soplado tumultuoso durante el afino neumatico subsuperficial de un acero
JPS5249885A (en) Method of measuring total carbon and apparatus therefor
GB1185086A (en) Method for Operating an Oxygen Top-Blowing Converter
GB1068214A (en) Improvements in and relating to determining the combined nitrogen and carbon monoxide content of the gases given off by a series of metal samples,and if desired therefrom the nitrogen and oxygen content of the samples
JPS5739123A (en) Annealing method for cold rolled steel plate
JPS5370898A (en) Measuring method for oxygen concentration in molten metal or oxygen partial pressure in industrial oven gas
JPS5713170A (en) Gas carburizing method
GB1068215A (en) Improvements in and relating to the determining of the hydrogen content of series of metal samples
JPS52121832A (en) Method of supplying and exhausting for balance type gas combustion apparatus
ES432179A1 (es) Procedimiento para eliminacion de oxigeno en el vino, medi-ante un barrido de gas inerte.
ES523686A0 (es) Un metodo para producir acero de bajo contenido en hidrogeno.
JPS5223987A (en) Method of sampling molten metal
JPS5381416A (en) Vacuum degassing method for molten steel
JPS5281003A (en) Equipment handling probe for molten metal
JPS51121391A (en) A method ion contineously measuring cyan ion and a eletrode for measur ing cyan ion,
JPS53149103A (en) Controller method for combustion in heating furnace
JPS51151211A (en) Vacuum ladle decarburization apparatus blowing oxidizing gas directly into molten steel at reduced pressur
JPS5345291A (en) Magnetic oxygen analyzer
Schmitz et al. Experience Gained with Spectrometric Pig Iron Analysis

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990206