ATE203280T1 - Verfahren zum erzeugen einer schaumschlacke auf einer rostfrei-stahlschmelze in einem elektroofen - Google Patents

Verfahren zum erzeugen einer schaumschlacke auf einer rostfrei-stahlschmelze in einem elektroofen

Info

Publication number
ATE203280T1
ATE203280T1 AT97401961T AT97401961T ATE203280T1 AT E203280 T1 ATE203280 T1 AT E203280T1 AT 97401961 T AT97401961 T AT 97401961T AT 97401961 T AT97401961 T AT 97401961T AT E203280 T1 ATE203280 T1 AT E203280T1
Authority
AT
Austria
Prior art keywords
stainless steel
electric furnace
producing
foam slag
slag
Prior art date
Application number
AT97401961T
Other languages
English (en)
Inventor
Yves Guillot
Frederic Descaves
Luc Sollier
Olivier Bletton
Original Assignee
Ugine Sa
Ugine Savoie Imphy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9495675&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE203280(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ugine Sa, Ugine Savoie Imphy filed Critical Ugine Sa
Application granted granted Critical
Publication of ATE203280T1 publication Critical patent/ATE203280T1/de

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
    • C21C5/52—Manufacture of steel in electric furnaces
    • 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
    • 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
    • C21C5/54—Processes yielding slags of special composition
    • 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
    • C21C5/36—Processes yielding slags of special composition
    • C21C2005/366—Foam slags
    • 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
    • C21C2300/00—Process aspects
    • C21C2300/02—Foam creation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
    • Y10S75/961—Treating flue dust to obtain metal other than by consolidation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Powder Metallurgy (AREA)
  • Heat Treatment Of Steel (AREA)
AT97401961T 1996-09-12 1997-08-21 Verfahren zum erzeugen einer schaumschlacke auf einer rostfrei-stahlschmelze in einem elektroofen ATE203280T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9611120A FR2753205B1 (fr) 1996-09-12 1996-09-12 Procede pour realiser un laitier moussant au-dessus d'un acier inoxydable en fusion dans un four electrique

Publications (1)

Publication Number Publication Date
ATE203280T1 true ATE203280T1 (de) 2001-08-15

Family

ID=9495675

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97401961T ATE203280T1 (de) 1996-09-12 1997-08-21 Verfahren zum erzeugen einer schaumschlacke auf einer rostfrei-stahlschmelze in einem elektroofen

Country Status (15)

Country Link
US (1) US6228137B1 (de)
EP (1) EP0829545B1 (de)
JP (1) JPH1088223A (de)
KR (1) KR100262876B1 (de)
CN (1) CN1067110C (de)
AT (1) ATE203280T1 (de)
AU (1) AU719924B2 (de)
BR (1) BR9704689A (de)
CA (1) CA2210505A1 (de)
DE (1) DE69705685T2 (de)
ES (1) ES2158468T3 (de)
FR (1) FR2753205B1 (de)
ID (1) ID19645A (de)
TW (1) TW357195B (de)
ZA (1) ZA978124B (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2780070B1 (fr) * 1998-06-22 2001-06-08 Elf Antar France Procede de moussage d'un laitier recouvrant un bain d'acier en fusion
SE512757C2 (sv) * 1998-09-03 2000-05-08 Uddeholm Technology Ab Tillsats av dopingmedel vid tillverkning av stål i ljusbågsugn, dopingmedlet samt användning av detta
KR100382311B1 (ko) * 1998-09-28 2003-07-22 주식회사 포스코 분체탄소취입에의한스테인레스강슬래그중의유가금속회수방법
KR100404281B1 (ko) * 1999-08-12 2003-11-03 주식회사 포스코 스테인레스 제강 슬래그의 포밍방법
NO311226B1 (no) * 1999-10-18 2001-10-29 Norsk Hydro As Skumming av slagg
SE517296C2 (sv) * 2000-02-17 2002-05-21 Uddeholm Technology Ab Sätt vid tillverkning av stål i ljusbågsugn under användande av granulerat tackjärn
SE0201453D0 (sv) * 2002-05-10 2002-05-10 Luossavaara Kiirunavaara Ab Method to improve iron production rate in a blast furnace
DE10323505A1 (de) 2003-05-24 2004-12-09 Sms Demag Ag Verfahren zur Erzeugung einer Schaumschlacke auf hochchromhaltigen Schmelzen in einem Elektroofen
NZ554303A (en) * 2004-09-03 2010-08-27 Newsouth Innovations Pty Ltd Production of ferro-alloys with charge of un-agglomerated polymer
DE102006004532B4 (de) * 2006-02-01 2014-10-09 Sms Siemag Aktiengesellschaft Verfahren zur Erzeugung einer Schaumschlacke in einer metallischen Schmelze
DE102007006529A1 (de) * 2007-02-09 2008-08-14 Sms Demag Ag Verfahren und Reduktion einer hochchromhaltigen Schlacke in einem Elektrolichtbogenofen
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
DE102008028011A1 (de) 2008-06-09 2009-12-10 Sms Siemag Aktiengesellschaft Verfahren zur Erzeugung einer Schaumschlacke auf austenitischen Rostfreischmelzen in einem Elektrolichtbogenofen
DE102008032975A1 (de) * 2008-07-07 2010-01-14 Sms Siemag Aktiengesellschaft Verfahren zur Erzeugung von Schaumschlacke
DE102009020494A1 (de) 2009-05-08 2010-11-11 Sms Siemag Ag Verfahren zum Schlackeschäumen einer Nichtrostfrei-Stahlschmelze in einem Elektrolichtbogenofen
DE102010004983A1 (de) * 2010-01-19 2011-07-21 SMS Siemag Aktiengesellschaft, 40237 Verfahren zur Schaumschlackenerzeugung einer Rostfreischmelze in einem Konverter
CN102162020B (zh) * 2010-02-23 2013-05-15 宝山钢铁股份有限公司 一种电炉冶炼不锈钢用发泡剂及其使用方法
DE102010022692A1 (de) 2010-03-17 2011-09-22 Sms Siemag Ag Brikett zur Erzeugung eines Schaumschlacke-Effekts bei der EAF-Technologie der Edelstahlherstellung
EP2695953B1 (de) * 2011-03-31 2019-08-14 Hitachi Metals, Ltd. Verfahren zum hinzufügen von zink zu stahlschmelze und verfahren zur herstellung von zinkhaltigem stahl
JP6322065B2 (ja) * 2014-06-23 2018-05-09 日本冶金工業株式会社 ステンレス鋼の製造方法
JP6620781B2 (ja) * 2017-05-15 2019-12-18 Ｊｆｅスチール株式会社 ダストの溶融還元方法及び再利用方法
KR102249920B1 (ko) 2018-09-27 2021-05-07 주식회사 포스코 방향성 전기강판 및 그의 제조방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US655508A (en) * 1898-06-30 1900-08-07 Micheal Mcnalley Bit.
JPS531618A (en) * 1976-06-28 1978-01-09 Nisshin Steel Co Ltd Sedative for slag bubbling and converter process using same
US4528035A (en) * 1984-05-21 1985-07-09 Metro Materials Corporation Composition and process to create foaming slag cover for molten steel
US4913732A (en) * 1988-05-19 1990-04-03 Nkk Corporation Method for smelting reduction in electric furnace
DE3931392A1 (de) * 1989-09-20 1991-03-28 Fuchs Systemtechnik Gmbh Verfahren und vorrichtung zum zumindest zeitweise gleichzeitigen beaufschlagen einer metallschmelze mit einem gas und feinkoernigen feststoffen
DE4211164C2 (de) * 1992-03-31 1995-02-16 Mannesmann Ag Verfahren und Vorrichtung zum Behandeln von riesel- oder fließfähigem Material
DE4303751C1 (de) * 1993-02-09 1994-09-08 Intracon Sarl Verfahren zur Wiederverwertung von Filterstäuben
EP0655508B1 (de) * 1993-11-30 1998-08-19 ACCIAI SPECIALI TERNI S.p.a. Verfahren unter Verwendung von Schaumschlacke bei der Herstellung von rostfreiem Stahl im Elektro-lichtbogenofen
BE1007960A6 (fr) * 1994-01-13 1995-11-28 Centre Rech Metallurgique Procede d'elaboration d'acier dans un four a arc.

Also Published As

Publication number Publication date
ID19645A (id) 1998-07-23
ES2158468T3 (es) 2001-09-01
EP0829545B1 (de) 2001-07-18
CN1067110C (zh) 2001-06-13
FR2753205A1 (fr) 1998-03-13
CN1180751A (zh) 1998-05-06
FR2753205B1 (fr) 1998-12-04
CA2210505A1 (fr) 1998-03-12
US6228137B1 (en) 2001-05-08
JPH1088223A (ja) 1998-04-07
DE69705685D1 (de) 2001-08-23
EP0829545A1 (de) 1998-03-18
AU3424797A (en) 1998-03-19
ZA978124B (en) 1998-03-03
TW357195B (en) 1999-05-01
AU719924B2 (en) 2000-05-18
DE69705685T2 (de) 2001-11-22
KR19980024214A (ko) 1998-07-06
MX9706898A (es) 1998-07-31
KR100262876B1 (ko) 2000-08-01
BR9704689A (pt) 1998-12-29

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee
RZN Patent revoked