DE69910256D1 - Verfahren zur denitrierung von geschmolzenem stahl während des frischprozesses - Google Patents

Verfahren zur denitrierung von geschmolzenem stahl während des frischprozesses

Info

Publication number
DE69910256D1
DE69910256D1 DE69910256T DE69910256T DE69910256D1 DE 69910256 D1 DE69910256 D1 DE 69910256D1 DE 69910256 T DE69910256 T DE 69910256T DE 69910256 T DE69910256 T DE 69910256T DE 69910256 D1 DE69910256 D1 DE 69910256D1
Authority
DE
Germany
Prior art keywords
carbon
bath
denitrating
molten steel
steel during
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 - Lifetime
Application number
DE69910256T
Other languages
English (en)
Other versions
DE69910256T2 (de
Inventor
Jean-Christophe Mailhan
Daniel Pernet
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.)
USINOR SA
Original Assignee
USINOR SA
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 USINOR SA filed Critical USINOR SA
Publication of DE69910256D1 publication Critical patent/DE69910256D1/de
Application granted granted Critical
Publication of DE69910256T2 publication Critical patent/DE69910256T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C21C7/072—Treatment with gases
    • 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
    • C21C7/0025—Adding carbon material
    • 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
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F27D3/0026—Introducing additives into the melt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
DE69910256T 1998-12-18 1999-12-17 Verfahren zur denitrierung von geschmolzenem stahl während des frischprozesses Expired - Lifetime DE69910256T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9816082 1998-12-18
FR9816082A FR2787468B1 (fr) 1998-12-18 1998-12-18 Procede de denitruration de l'acier en fusion en cours d'elaboration
PCT/FR1999/003176 WO2000037688A1 (fr) 1998-12-18 1999-12-17 Procede de denitruration de l'acier en fusion en cours d'elaboration

Publications (2)

Publication Number Publication Date
DE69910256D1 true DE69910256D1 (de) 2003-09-11
DE69910256T2 DE69910256T2 (de) 2004-07-01

Family

ID=9534200

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69910256T Expired - Lifetime DE69910256T2 (de) 1998-12-18 1999-12-17 Verfahren zur denitrierung von geschmolzenem stahl während des frischprozesses

Country Status (24)

Country Link
US (1) US6565622B1 (de)
EP (1) EP1141422B1 (de)
JP (1) JP2002533566A (de)
KR (1) KR20010101205A (de)
CN (1) CN1329675A (de)
AT (1) ATE246734T1 (de)
AU (1) AU756853B2 (de)
BG (1) BG105612A (de)
BR (1) BR9916269A (de)
CA (1) CA2356370A1 (de)
CZ (1) CZ20012225A3 (de)
DE (1) DE69910256T2 (de)
EA (1) EA003345B1 (de)
ES (1) ES2205916T3 (de)
FR (1) FR2787468B1 (de)
HU (1) HUP0104705A3 (de)
PL (1) PL348064A1 (de)
RO (1) RO121135B1 (de)
SI (1) SI20533A (de)
SK (1) SK7932001A3 (de)
TR (1) TR200101606T2 (de)
WO (1) WO2000037688A1 (de)
YU (1) YU42501A (de)
ZA (1) ZA200104661B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050050767A1 (en) * 2003-06-06 2005-03-10 Hanson Kyle M. Wet chemical processing chambers for processing microfeature workpieces
US20050063798A1 (en) * 2003-06-06 2005-03-24 Davis Jeffry Alan Interchangeable workpiece handling apparatus and associated tool for processing microfeature workpieces
US7313462B2 (en) * 2003-06-06 2007-12-25 Semitool, Inc. Integrated tool with automated calibration system and interchangeable wet processing components for processing microfeature workpieces
CN112342400A (zh) * 2020-10-14 2021-02-09 潘玉霞 一种五金铸件的精密消气泡铸造工艺
DE102021121472A1 (de) 2021-08-18 2023-02-23 Sms Group Gmbh Elektrolichtbogenofen, Verfahren zum Betrieb eines Elektrolichtbogenofens und Verwendung eines Elektrolichtbogenofens
WO2024190908A1 (ja) * 2023-03-16 2024-09-19 日本製鉄株式会社 溶鋼の製造方法およびアーク炉

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE739066A (en) * 1969-09-18 1970-03-18 Electro pneumatic steel
FR2540518B1 (fr) * 1983-02-03 1991-09-06 Siderurgie Fse Inst Rech Procede pour la conduite d'un four metallurgique de fusion et dispositif de mise en oeuvre
JPH0819456B2 (ja) * 1987-02-24 1996-02-28 新日本製鐵株式会社 極低窒素鋼の溶製方法
DE4242328C2 (de) * 1992-12-15 1995-06-08 Alfred Dipl Ing Dr Freissmuth Mittel zur Entschwefelung, Entphosphorung, Entsilicierung und Entstickung von Roheisen- und Gußeisenschmelzen
FR2705767B1 (fr) * 1993-05-27 1995-07-21 Lorraine Laminage Procédé et installation de production d'acier liquide à partir de matières ferreuses riches en matières carbonées.
JPH0726318A (ja) * 1993-07-09 1995-01-27 Kawasaki Steel Corp 製鋼用電気炉の操業方法
JPH09165615A (ja) * 1995-12-14 1997-06-24 Kawasaki Steel Corp 溶融金属の脱窒方法
JPH1112634A (ja) * 1997-06-20 1999-01-19 Nkk Corp アーク炉による低窒素溶鋼の製造方法
LU90154B1 (fr) * 1997-10-17 1999-04-19 Wurth Paul Sa Procede pour la fusion en continu de produits metalliques solides

Also Published As

Publication number Publication date
JP2002533566A (ja) 2002-10-08
BR9916269A (pt) 2001-09-04
SK7932001A3 (en) 2002-01-07
RO121135B1 (ro) 2006-12-29
EP1141422A1 (de) 2001-10-10
ES2205916T3 (es) 2004-05-01
HUP0104705A3 (en) 2002-06-28
YU42501A (sh) 2003-12-31
AU756853B2 (en) 2003-01-23
FR2787468B1 (fr) 2001-12-07
CN1329675A (zh) 2002-01-02
CZ20012225A3 (cs) 2002-02-13
BG105612A (en) 2002-01-31
TR200101606T2 (tr) 2001-10-22
FR2787468A1 (fr) 2000-06-23
ZA200104661B (en) 2002-06-07
EP1141422B1 (de) 2003-08-06
SI20533A (sl) 2001-10-31
US6565622B1 (en) 2003-05-20
DE69910256T2 (de) 2004-07-01
HUP0104705A2 (hu) 2002-03-28
EA003345B1 (ru) 2003-04-24
WO2000037688A1 (fr) 2000-06-29
PL348064A1 (en) 2002-05-06
CA2356370A1 (fr) 2000-06-29
AU1664800A (en) 2000-07-12
EA200100563A1 (ru) 2001-12-24
KR20010101205A (ko) 2001-11-14
ATE246734T1 (de) 2003-08-15

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