DE69528728T2 - Verfahren zum Entkohlen chromhaltiger Stahlschmelzen - Google Patents

Verfahren zum Entkohlen chromhaltiger Stahlschmelzen

Info

Publication number
DE69528728T2
DE69528728T2 DE69528728T DE69528728T DE69528728T2 DE 69528728 T2 DE69528728 T2 DE 69528728T2 DE 69528728 T DE69528728 T DE 69528728T DE 69528728 T DE69528728 T DE 69528728T DE 69528728 T2 DE69528728 T2 DE 69528728T2
Authority
DE
Germany
Prior art keywords
containing steel
steel melts
decarburizing
chromium
decarburizing chromium
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
DE69528728T
Other languages
English (en)
Other versions
DE69528728D1 (de
Inventor
Hiroshi Nishikawa
Masaru Washio
Naoki Kikuchi
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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
Priority claimed from JP07643595A external-priority patent/JP3731220B2/ja
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of DE69528728D1 publication Critical patent/DE69528728D1/de
Application granted granted Critical
Publication of DE69528728T2 publication Critical patent/DE69528728T2/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
    • 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
    • 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)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
DE69528728T 1994-06-06 1995-06-06 Verfahren zum Entkohlen chromhaltiger Stahlschmelzen Expired - Lifetime DE69528728T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP12367994 1994-06-06
JP24130394 1994-10-05
JP24130494 1994-10-05
JP07643595A JP3731220B2 (ja) 1994-06-06 1995-03-31 含Ｃｒ溶鋼の脱炭精錬方法

Publications (2)

Publication Number Publication Date
DE69528728D1 DE69528728D1 (de) 2002-12-12
DE69528728T2 true DE69528728T2 (de) 2003-11-20

Family

ID=27465947

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69528728T Expired - Lifetime DE69528728T2 (de) 1994-06-06 1995-06-06 Verfahren zum Entkohlen chromhaltiger Stahlschmelzen

Country Status (7)

Country Link
US (1) US5743938A (de)
EP (1) EP0690137B1 (de)
KR (1) KR0179394B1 (de)
CN (1) CN1046764C (de)
BR (1) BR9502692A (de)
DE (1) DE69528728T2 (de)
TW (1) TW261635B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6500224B1 (en) * 2001-10-11 2002-12-31 Bethlehem Steel Corporation Method for operating a steelmaking furnace during a steelmaking process
CA2563338A1 (en) * 2004-05-18 2005-12-01 Holcim Ltd. Method for reducing cr from cr-containing metallurgical slags
CN101818231B (zh) * 2010-04-07 2011-09-28 长春工业大学 防止氩氧精炼铬铁合金过程中发生喷溅的控制方法
KR101301435B1 (ko) * 2011-11-17 2013-08-30 주식회사 포스코 오스테나이트계 스테인리스강의 정련방법
KR101400652B1 (ko) * 2012-09-10 2014-05-27 주식회사 포스코 오스테나이트계 스테인리스강의 고속 탈탄 방법
KR101400498B1 (ko) * 2012-09-10 2014-05-28 주식회사 포스코 고순도 스테인리스강의 고속 탈탄 방법
CN104498664A (zh) * 2014-08-06 2015-04-08 北京科技大学 一种喷吹水蒸气控制转炉熔池温度及烟尘生成量的方法
CN111208259B (zh) * 2018-11-06 2022-03-22 宝武特种冶金有限公司 一种连铸结晶器保护渣的渣金反应模拟试验装置及其方法
CN110819880B (zh) * 2019-11-27 2021-06-22 宝钢德盛不锈钢有限公司 一种200系不锈钢生产用含铬低镍铁水预处理工艺及应用
CN117724430B (zh) * 2024-01-03 2024-05-14 山东诺德能源科技有限公司 一种生产自动调度方法及调度系统

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307937A (en) * 1964-04-28 1967-03-07 Nyby Bruk Ab Method when degassing carboncontaining metal melts
JPS5187112A (ja) 1975-01-30 1976-07-30 Nippon Steel Corp Yokonoreikyakuhoho
JPS5295502A (en) * 1976-02-09 1977-08-11 Nippon Steel Corp Control of bath temperature of molten metal bath
JPS571577A (en) 1980-06-06 1982-01-06 Hitachi Ltd Welding method by partially shielded arc
US4457777A (en) * 1981-09-07 1984-07-03 British Steel Corporation Steelmaking
JPS5893809A (ja) * 1981-11-30 1983-06-03 Daido Steel Co Ltd 溶鋼の精錬方法
JPS5896812A (ja) * 1981-12-02 1983-06-09 Nippon Steel Corp 脱炭精錬方法
US4426224A (en) * 1981-12-25 1984-01-17 Sumitomo Kinzoku Kogyo Kabushiki Gaisha Lance for powder top-blow refining and process for decarburizing and refining steel by using the lance
JPS58193309A (ja) 1982-04-30 1983-11-11 Sumitomo Metal Ind Ltd 鋼の精錬法
JPS59150009A (ja) * 1983-02-12 1984-08-28 Daido Steel Co Ltd 鋼の精錬方法
JPS59177314A (ja) * 1983-03-24 1984-10-08 Nippon Yakin Kogyo Co Ltd 含クロム溶鋼の精錬方法
US4514220A (en) * 1984-04-26 1985-04-30 Allegheny Ludlum Steel Corporation Method for producing steel in a top-blown vessel
US4615730A (en) * 1985-04-30 1986-10-07 Allegheny Ludlum Steel Corporation Method for refining molten metal bath to control nitrogen
JPH0629717B2 (ja) 1985-07-12 1994-04-20 株式会社ニコン エツジ像の境界位置及び角度検出装置
FR2635789B1 (fr) * 1988-08-29 1993-04-23 Air Liquide American Procede d'elaboration d'acier a faible teneur en azote dans un four poche
JP2850407B2 (ja) * 1989-04-18 1999-01-27 大同特殊鋼株式会社 含クロム溶鋼の精錬法
JPH04329818A (ja) 1991-05-02 1992-11-18 Daido Steel Co Ltd 含クロム溶鋼の低ｃ域脱炭方法
JP3410553B2 (ja) * 1994-07-27 2003-05-26 新日本製鐵株式会社 含クロム溶鋼の脱炭精錬法

Also Published As

Publication number Publication date
TW261635B (en) 1995-11-01
EP0690137A3 (de) 1997-04-23
KR960001142A (ko) 1996-01-25
BR9502692A (pt) 1996-01-09
US5743938A (en) 1998-04-28
CN1046764C (zh) 1999-11-24
DE69528728D1 (de) 2002-12-12
CN1132794A (zh) 1996-10-09
KR0179394B1 (ko) 1999-02-18
EP0690137B1 (de) 2002-11-06
EP0690137A2 (de) 1996-01-03

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8364 No opposition during term of opposition