BR9606545A - Mpetodo de refinação a vácuo para aço fundido - Google Patents

Mpetodo de refinação a vácuo para aço fundido

Info

Publication number
BR9606545A
BR9606545A BR9606545A BR9606545A BR9606545A BR 9606545 A BR9606545 A BR 9606545A BR 9606545 A BR9606545 A BR 9606545A BR 9606545 A BR9606545 A BR 9606545A BR 9606545 A BR9606545 A BR 9606545A
Authority
BR
Brazil
Prior art keywords
cast steel
refining method
vacuum refining
vacuum
cast
Prior art date
Application number
BR9606545A
Other languages
English (en)
Inventor
Shinya Kitamura
Kamitoshi Yonezawa
Shinji Sasakawa
Kunihiko Fujiwara
Original Assignee
Nippon 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 JP20011095A external-priority patent/JPH0949013A/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BR9606545A publication Critical patent/BR9606545A/pt

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
    • C21C7/0006—Adding metallic additives
    • 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
    • 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
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
BR9606545A 1995-08-01 1996-08-01 Mpetodo de refinação a vácuo para aço fundido BR9606545A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP19676095 1995-08-01
JP20011095A JPH0949013A (ja) 1995-08-04 1995-08-04 真空脱ガス装置による溶鋼の精錬方法及び真空脱ガス装置
PCT/JP1996/002173 WO1997005291A1 (fr) 1995-08-01 1996-08-01 Procede d'affinage sous vide d'acier en fusion

Publications (1)

Publication Number Publication Date
BR9606545A true BR9606545A (pt) 1997-12-30

Family

ID=26509961

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9606545A BR9606545A (pt) 1995-08-01 1996-08-01 Mpetodo de refinação a vácuo para aço fundido

Country Status (11)

Country Link
US (1) US5902374A (pt)
EP (2) EP0785284B1 (pt)
KR (1) KR100214927B1 (pt)
CN (1) CN1066775C (pt)
AU (1) AU695201B2 (pt)
BR (1) BR9606545A (pt)
CA (1) CA2201364C (pt)
DE (1) DE69624783T2 (pt)
ES (1) ES2181905T3 (pt)
TW (1) TW406131B (pt)
WO (1) WO1997005291A1 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997008348A1 (fr) * 1995-08-28 1997-03-06 Nippon Steel Corporation Procede et dispositif d'affinage sous vide d'acier en fusion
DE59607427D1 (de) * 1995-11-17 2001-09-06 Sms Demag Ag Verfahren zur entkohlung von stahlschmelzen
CN1070927C (zh) * 1996-11-20 2001-09-12 新日本制铁株式会社 钢水的真空脱碳精炼方法及装置
JP2000073118A (ja) * 1998-08-26 2000-03-07 Nippon Steel Corp 簡易取鍋精錬方法
CA2340690C (en) * 1999-06-16 2005-03-15 Nippon Steel Corporation Method for refining molten steel and apparatus therefor
ES2312339T3 (es) * 2000-05-12 2009-03-01 Nippon Steel Corporation Dispositivo de refino en cuchara de colada, y uso de la cuchara de colada de colada en un metodo de refino.
GB0427832D0 (en) * 2004-12-20 2005-01-19 Boc Group Plc Degassing molten metal
CN101545028B (zh) * 2008-03-24 2011-02-09 宝山钢铁股份有限公司 一种多功能真空精炼工艺
UA104595C2 (uk) * 2008-08-04 2014-02-25 Ньюкор Корпорейшн Спосіб виробництва низьковуглецевої низькосірчистої низькоазотистої сталі з використанням звичайного сталеплавильного обладнання
EP2333120A1 (en) * 2008-09-16 2011-06-15 Istc Co., Ltd. Process for producing molten iron
US8557059B2 (en) * 2009-06-05 2013-10-15 Edro Specialty Steels, Inc. Plastic injection mold of low carbon martensitic stainless steel
RU2446216C1 (ru) * 2010-10-11 2012-03-27 Открытое акционерное общество "Магнитогорский металлургический комбинат" Способ дегазации металла в ковше
CN102094110A (zh) * 2010-12-14 2011-06-15 山西太钢不锈钢股份有限公司 一种精炼炉脱氢的方法
CN103045804B (zh) * 2012-12-21 2014-07-02 山西新泰钢铁有限公司 一种冶炼超低碳氮不锈钢的方法
CN103509913A (zh) * 2013-09-03 2014-01-15 西安前沿重型工业工程技术有限公司 一种真空罩吹氩吹氧精炼钢水装置
CN107287390A (zh) * 2017-05-19 2017-10-24 北京科技大学 偏心单嘴精炼炉及精炼工艺
CN111194357A (zh) 2017-08-24 2020-05-22 纽科尔公司 低碳钢的改进制造
CN108546799B (zh) * 2018-03-16 2020-06-23 马鞍山钢铁股份有限公司 一种基于直筒真空精炼装置生产超低碳钢的方法
JP7163780B2 (ja) * 2019-01-10 2022-11-01 日本製鉄株式会社 溶鋼の精錬方法
CN115232916B (zh) * 2022-07-18 2024-01-30 包头钢铁（集团）有限责任公司 一种cas-ob精炼炉升温的方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2460291A1 (de) * 1974-01-31 1975-08-07 Creusot Loire Blasverfahren zum erzielen sehr geringer kohlenstoffgehalte in chromstaehlen
US3971655A (en) * 1974-08-21 1976-07-27 Nippon Steel Corporation Method for treatment of molten steel in a ladle
JPS6043408B2 (ja) * 1978-07-28 1985-09-27 新日本製鐵株式会社 溶鋼の脱炭処理制御方法
JPS589914A (ja) * 1981-06-30 1983-01-20 Sumitomo Metal Ind Ltd 鋼の精錬方法
JPS6137912A (ja) * 1984-07-30 1986-02-22 Nippon Steel Corp 溶鋼の真空精錬法
JPH0192314A (ja) * 1987-10-02 1989-04-11 Sumitomo Metal Ind Ltd 取鍋精錬方法
JPH01156416A (ja) * 1987-12-11 1989-06-20 Nippon Steel Corp 脱炭特性の優れた高クロム鋼の減圧脱炭法
JPH0254714A (ja) * 1988-08-19 1990-02-23 Sumitomo Metal Ind Ltd Ｒｈ真空精錬における酸素付加方法
JPH02133510A (ja) * 1988-11-14 1990-05-22 Nippon Steel Corp 真空処理装置
JP2808197B2 (ja) * 1991-06-19 1998-10-08 新日本製鐵株式会社 大径浸漬管による溶鋼の真空精錬法
JPH06116627A (ja) * 1991-07-04 1994-04-26 Nippon Steel Corp 極低窒素鋼の製造方法
JP2582316B2 (ja) * 1991-07-04 1997-02-19 新日本製鐵株式会社 真空精錬炉を用いた低炭素鋼の溶製法
JP2819440B2 (ja) * 1991-10-14 1998-10-30 新日本製鐵株式会社 極低炭素クロム含有溶鋼の脱炭方法
JPH05171253A (ja) * 1991-12-24 1993-07-09 Kawasaki Steel Corp 溶鋼の脱硫方法
US5304231A (en) * 1991-12-24 1994-04-19 Kawasaki Steel Corporation Method of refining of high purity steel
JPH05287357A (ja) * 1992-04-06 1993-11-02 Nippon Steel Corp 極低炭素鋼の溶製方法
AU653294B2 (en) * 1992-08-26 1994-09-22 Nippon Steel Corporation Process for vacuum degassing molten steel
JP2688309B2 (ja) * 1992-08-26 1997-12-10 新日本製鐵株式会社 溶鋼の真空脱炭処理方法
JP2767674B2 (ja) * 1993-01-29 1998-06-18 新日本製鐵株式会社 高純度ステンレス鋼の精錬方法
JP2915772B2 (ja) * 1993-12-24 1999-07-05 新日本製鐵株式会社 直胴型浸漬管を用いた真空精錬炉への酸素ガス上吹き方法
JP2897639B2 (ja) * 1994-04-05 1999-05-31 住友金属工業株式会社 極低硫鋼の精錬方法

Also Published As

Publication number Publication date
CN1066775C (zh) 2001-06-06
EP0785284B1 (en) 2002-11-13
ES2181905T3 (es) 2003-03-01
AU6630096A (en) 1997-02-26
TW406131B (en) 2000-09-21
DE69624783T2 (de) 2003-09-25
AU695201B2 (en) 1998-08-06
KR100214927B1 (ko) 1999-08-02
CA2201364C (en) 2001-04-10
WO1997005291A1 (fr) 1997-02-13
CN1165541A (zh) 1997-11-19
KR970706411A (ko) 1997-11-03
EP0785284A1 (en) 1997-07-23
US5902374A (en) 1999-05-11
EP1154023A1 (en) 2001-11-14
EP0785284A4 (en) 1998-10-21
DE69624783D1 (de) 2002-12-19
CA2201364A1 (en) 1997-02-13

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP)

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 01/08/2016