DE69705685D1 - 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 ElektroofenInfo
- Publication number
- DE69705685D1 DE69705685D1 DE69705685T DE69705685T DE69705685D1 DE 69705685 D1 DE69705685 D1 DE 69705685D1 DE 69705685 T DE69705685 T DE 69705685T DE 69705685 T DE69705685 T DE 69705685T DE 69705685 D1 DE69705685 D1 DE 69705685D1
- Authority
- DE
- Germany
- Prior art keywords
- stainless steel
- electric furnace
- producing
- steel melt
- foam slag
- 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 - Fee Related
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
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (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)
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 (2)
Publication Number | Publication Date |
---|---|
DE69705685D1 true DE69705685D1 (de) | 2001-08-23 |
DE69705685T2 DE69705685T2 (de) | 2001-11-22 |
Family
ID=9495675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69705685T Expired - Fee Related DE69705685T2 (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 (21)
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 |
DE10323505A1 (de) * | 2003-05-24 | 2004-12-09 | Sms Demag Ag | Verfahren zur Erzeugung einer Schaumschlacke auf hochchromhaltigen Schmelzen in einem Elektroofen |
EP1799875B1 (de) * | 2004-09-03 | 2013-11-27 | NewSouth Innovations Pty Limited | Verfahren zur schaumung von schlacken |
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 |
WO2012132138A1 (ja) * | 2011-03-31 | 2012-10-04 | 日立金属株式会社 | 溶鋼への亜鉛添加方法および亜鉛添加鋼の製造方法 |
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)
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. |
-
1996
- 1996-09-12 FR FR9611120A patent/FR2753205B1/fr not_active Expired - Fee Related
-
1997
- 1997-08-19 AU AU34247/97A patent/AU719924B2/en not_active Ceased
- 1997-08-20 TW TW086111897A patent/TW357195B/zh active
- 1997-08-21 EP EP97401961A patent/EP0829545B1/de not_active Revoked
- 1997-08-21 AT AT97401961T patent/ATE203280T1/de not_active IP Right Cessation
- 1997-08-21 ES ES97401961T patent/ES2158468T3/es not_active Expired - Lifetime
- 1997-08-21 DE DE69705685T patent/DE69705685T2/de not_active Expired - Fee Related
- 1997-08-25 CA CA002210505A patent/CA2210505A1/fr not_active Abandoned
- 1997-08-29 KR KR1019970043184A patent/KR100262876B1/ko not_active IP Right Cessation
- 1997-09-03 ID IDP973070A patent/ID19645A/id unknown
- 1997-09-09 JP JP9260899A patent/JPH1088223A/ja not_active Abandoned
- 1997-09-10 ZA ZA9708124A patent/ZA978124B/xx unknown
- 1997-09-11 BR BR9704689A patent/BR9704689A/pt not_active IP Right Cessation
- 1997-09-11 CN CN97118425A patent/CN1067110C/zh not_active Expired - Fee Related
- 1997-09-12 US US08/928,500 patent/US6228137B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100262876B1 (ko) | 2000-08-01 |
ATE203280T1 (de) | 2001-08-15 |
EP0829545B1 (de) | 2001-07-18 |
CA2210505A1 (fr) | 1998-03-12 |
CN1180751A (zh) | 1998-05-06 |
JPH1088223A (ja) | 1998-04-07 |
ID19645A (id) | 1998-07-23 |
MX9706898A (es) | 1998-07-31 |
ES2158468T3 (es) | 2001-09-01 |
AU3424797A (en) | 1998-03-19 |
KR19980024214A (ko) | 1998-07-06 |
CN1067110C (zh) | 2001-06-13 |
BR9704689A (pt) | 1998-12-29 |
ZA978124B (en) | 1998-03-03 |
TW357195B (en) | 1999-05-01 |
US6228137B1 (en) | 2001-05-08 |
FR2753205A1 (fr) | 1998-03-13 |
AU719924B2 (en) | 2000-05-18 |
DE69705685T2 (de) | 2001-11-22 |
FR2753205B1 (fr) | 1998-12-04 |
EP0829545A1 (de) | 1998-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8339 | Ceased/non-payment of the annual fee |