ES2008814A6 - Process for oxidizing treatment of steel - Google Patents

Process for oxidizing treatment of steel

Info

Publication number
ES2008814A6
ES2008814A6 ES8802759A ES8802759A ES2008814A6 ES 2008814 A6 ES2008814 A6 ES 2008814A6 ES 8802759 A ES8802759 A ES 8802759A ES 8802759 A ES8802759 A ES 8802759A ES 2008814 A6 ES2008814 A6 ES 2008814A6
Authority
ES
Spain
Prior art keywords
metal bath
oxidizing treatment
steel
gas
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
ES8802759A
Other languages
Spanish (es)
Inventor
Ulrich Genge
Kalamendra Sinha
Horst Kappes
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of ES2008814A6 publication Critical patent/ES2008814A6/en
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
    • C21C5/34—Blowing 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
    • 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

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)
  • Coating With Molten Metal (AREA)

Abstract

In a process for oxidizing treatment, preferably decarbonization of unalloyed and alloyed steel by treating the metal bath with oxygen and inert gas in a metallurgical vessel, the gas is introduced into the metal bath at points located below the surface of the bath. In order to carry out the process simply and economically, the oxygen is introduced into the metal bath in a first region and the inert gas in a second region and the gas is introduced into each of the two regions in such a way that a flow movement is produced in the metal bath.
ES8802759A 1987-11-12 1988-09-08 Process for oxidizing treatment of steel Expired ES2008814A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1987/000514 WO1989004377A1 (en) 1987-11-12 1987-11-12 Process for oxidizing treatment of steel

Publications (1)

Publication Number Publication Date
ES2008814A6 true ES2008814A6 (en) 1989-08-01

Family

ID=6803568

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8802759A Expired ES2008814A6 (en) 1987-11-12 1988-09-08 Process for oxidizing treatment of steel

Country Status (2)

Country Link
ES (1) ES2008814A6 (en)
WO (1) WO1989004377A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2273393A1 (en) * 1999-05-31 2000-11-30 Mcmaster University Ladle for enhanced steel vacuum decarburization

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794178A (en) * 1972-02-02 1973-05-16 Centre Rech Metallurgique PROCESS FOR TREATMENT OF FERROUS MACHINERY
FR2160356A1 (en) * 1972-06-12 1973-06-29 Air Liquide Decarburising chromium contg ferrous melts - avoiding oxidation and loss of the chromium
FR2258454A1 (en) * 1974-01-23 1975-08-18 Creusot Loire Oxygen converter for steel mfr - using two groups of tuyeres so a second gas can be added during de-phosphorisation
US4472195A (en) * 1983-08-15 1984-09-18 Olin Corporation Process for decarburizing alloy melts
US4529442A (en) * 1984-04-26 1985-07-16 Allegheny Ludlum Steel Corporation Method for producing steel in a top oxygen blown vessel

Also Published As

Publication number Publication date
WO1989004377A1 (en) 1989-05-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010201