AR038718A1 - Metodo para producir acero inoxidable especialmente acero refinado al cromo o cromo-niquel - Google Patents

Metodo para producir acero inoxidable especialmente acero refinado al cromo o cromo-niquel

Info

Publication number
AR038718A1
AR038718A1 ARP030100705A ARP030100705A AR038718A1 AR 038718 A1 AR038718 A1 AR 038718A1 AR P030100705 A ARP030100705 A AR P030100705A AR P030100705 A ARP030100705 A AR P030100705A AR 038718 A1 AR038718 A1 AR 038718A1
Authority
AR
Argentina
Prior art keywords
chrome
arc
nickel
chromium
stainless steel
Prior art date
Application number
ARP030100705A
Other languages
English (en)
Original Assignee
Sms Demag Ag
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 Sms Demag Ag filed Critical Sms Demag Ag
Publication of AR038718A1 publication Critical patent/AR038718A1/es

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
    • C21C5/35—Blowing from above and through the bath
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5264—Manufacture of alloyed steels including ferro-alloys
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Método para producir acero inoxidable, especialmente acero refinado al cromo o al cromo-níquel, en un dispositivo de fusión que comprende uno, dos o más crisoles (1,2) que operan según el método de arco voltaico o de inyección de oxígeno, que comprende los siguientes pasos: (a) Cargar material fundible líquido y/o sólido y soportes de aleación(1); (b) Fundir el material sobre arco voltaico; (c) Descarbonizar la colada por inyección de oxígeno; (d) Reducir la escoria que contiene óxido de cromo, con una distribución de tiempos que permite una gran reducción del cromo contenido en la escoria (19), de manera que el tiempo de la descarbonización (3) es igual o menor que la suma de los pasos de reducción de la escoria con arco voltaico (4), sangrado (5), carga de materiales fundibles líquidos y/o sólidos y soportes de aleación (1) y fusión con arco voltaico (2).
ARP030100705A 2002-03-05 2003-03-03 Metodo para producir acero inoxidable especialmente acero refinado al cromo o cromo-niquel AR038718A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10209472A DE10209472B4 (de) 2002-03-05 2002-03-05 Verfahren zum Erzeugen von nichtrostendem Stahl, insbesondere von chrom- oder chromnickelhaltigem Edelstahl

Publications (1)

Publication Number Publication Date
AR038718A1 true AR038718A1 (es) 2005-01-26

Family

ID=27770964

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP030100705A AR038718A1 (es) 2002-03-05 2003-03-03 Metodo para producir acero inoxidable especialmente acero refinado al cromo o cromo-niquel

Country Status (8)

Country Link
EP (1) EP1481100B1 (es)
AR (1) AR038718A1 (es)
AT (1) ATE301726T1 (es)
AU (1) AU2003206936A1 (es)
DE (2) DE10209472B4 (es)
RU (1) RU2004129590A (es)
TW (1) TW200305654A (es)
WO (1) WO2003074741A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016681A1 (de) * 2004-04-05 2005-12-22 Ispat Industries Ltd., Taluka-Pen Verfahren und Anlagen zum Herstellen und Erhöhen der jährlichen Produktionsmenge von Massenstahl oder hochwertigen Stahlgüten in einer Zwei-Gefäß-Anlage
DE102007050478A1 (de) * 2007-10-23 2009-04-30 Sms Demag Ag Verfahren zur Rostfreistahlerzeugung mit Direktreduktionsöfen für Ferrochrom und Ferronickel auf der Primärseite eines Konverters

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575696A (en) * 1968-09-19 1971-04-20 Jones & Laughlin Steel Corp Process for controlling the manufacture of high-chromium steels
CA1333663C (en) * 1987-09-09 1994-12-27 Haruyoshi Tanabe Method of decarburizing high cr molten metal
AT403293B (de) * 1995-01-16 1997-12-29 Kct Tech Gmbh Verfahren und anlage zum herstellen von legierten stählen
DE19621143A1 (de) * 1996-01-31 1997-08-07 Mannesmann Ag Verfahren zur Erzeugung nichtrostender Stähle

Also Published As

Publication number Publication date
EP1481100A1 (de) 2004-12-01
ATE301726T1 (de) 2005-08-15
DE50300960D1 (de) 2005-09-15
WO2003074741A1 (de) 2003-09-12
DE10209472B4 (de) 2004-08-26
DE10209472A1 (de) 2003-10-02
TW200305654A (en) 2003-11-01
AU2003206936A1 (en) 2003-09-16
EP1481100B1 (de) 2005-08-10
RU2004129590A (ru) 2005-05-10

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