EP0325242A3 - Method for refining molten steel in a vacuum - Google Patents

Method for refining molten steel in a vacuum Download PDF

Info

Publication number
EP0325242A3
EP0325242A3 EP89100866A EP89100866A EP0325242A3 EP 0325242 A3 EP0325242 A3 EP 0325242A3 EP 89100866 A EP89100866 A EP 89100866A EP 89100866 A EP89100866 A EP 89100866A EP 0325242 A3 EP0325242 A3 EP 0325242A3
Authority
EP
European Patent Office
Prior art keywords
molten steel
ladle
vacuum vessel
gas
vacuum
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.)
Withdrawn
Application number
EP89100866A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0325242A2 (en
Inventor
Toshio C/O Nkk Corporation Ishii
Yutaka c/o NKK Corporation Okubo
Shuzo c/o NKK Corporation Fukuda
Yoshihiko c/o NKK Corporation Kawai
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 Engineering Corp
Original Assignee
NKK 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
Application filed by NKK Corp filed Critical NKK Corp
Publication of EP0325242A2 publication Critical patent/EP0325242A2/en
Publication of EP0325242A3 publication Critical patent/EP0325242A3/en
Withdrawn legal-status Critical Current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
    • C21C7/10—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)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP89100866A 1988-01-21 1989-01-19 Method for refining molten steel in a vacuum Withdrawn EP0325242A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9675/88 1988-01-21
JP63009675A JPH01188619A (ja) 1988-01-21 1988-01-21 Ｒｈ真空脱ガス法
JP1031105A JPH02211974A (ja) 1988-01-21 1989-02-13 溶融金属の減圧清浄化方法

Publications (2)

Publication Number Publication Date
EP0325242A2 EP0325242A2 (en) 1989-07-26
EP0325242A3 true EP0325242A3 (en) 1990-02-14

Family

ID=39689269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100866A Withdrawn EP0325242A3 (en) 1988-01-21 1989-01-19 Method for refining molten steel in a vacuum

Country Status (6)

Country Link
EP (1) EP0325242A3 (ja)
JP (2) JPH01188619A (ja)
KR (1) KR930005067B1 (ja)
AU (1) AU601893B2 (ja)
BR (1) BR8900249A (ja)
CA (1) CA1338397C (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5077255A (en) * 1986-09-09 1991-12-31 Exxon Chemical Patents Inc. New supported polymerization catalyst
US5221326A (en) * 1990-05-17 1993-06-22 Kawasaki Steel Corporation Method of producing ultra-low-carbon steel
DE19856073A1 (de) * 1998-12-04 2000-06-15 Technometal Ges Fuer Metalltec Verfahren zur Entstickung von Stahlschmelzen
GB2406580B (en) * 2000-06-05 2005-09-07 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same
GB2410503B (en) * 2000-06-05 2005-09-07 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same
GB2381537B (en) * 2000-06-05 2005-09-14 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same
EP1568790A1 (fr) * 2004-02-24 2005-08-31 Paul Wurth S.A. Dispositif pour le traitement de métal liquide en poche
CN102296159B (zh) * 2010-06-25 2013-05-01 鞍钢股份有限公司 一种插入管堵塞的处理方法
KR101881971B1 (ko) * 2016-11-09 2018-08-24 주식회사 포스코 주조설비 및 이를 이용한 주조방법
CN113957203B (zh) * 2021-12-21 2022-03-15 太原科技大学 一种多功能非中心对称真空精炼设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954214A (en) * 1959-08-14 1964-04-02 Heraeus Gmbh W C Improvements in or relating to the vacuum degassing of metals
DE1222090B (de) * 1960-09-09 1966-08-04 Heraeus Gmbh W C Verfahren zum Entgasen von Stahlschmelzen
US3320053A (en) * 1964-09-25 1967-05-16 Bethlehem Steel Corp Method of injecting gases into steel melts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021207B2 (ja) * 1981-05-26 1985-05-25 川崎製鉄株式会社 極低炭素溶鋼の製造方法
JPS57200514A (en) * 1981-06-03 1982-12-08 Nippon Kokan Kk <Nkk> Method for degassing molten steel
JPS5837112A (ja) * 1981-08-29 1983-03-04 Kawasaki Steel Corp 溶鋼の真空精練法
JPS60184619A (ja) * 1984-02-29 1985-09-20 Sumitomo Metal Ind Ltd 低窒素鋼の製造方法
AU601602B2 (en) * 1987-06-29 1990-09-13 Kawasaki Steel Corporation Method and apparatus for degassing molten metal utilizing RH method
AU605949B2 (en) * 1987-12-25 1991-01-24 Nkk Corporation Method for cleaning molten metal and apparatus therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954214A (en) * 1959-08-14 1964-04-02 Heraeus Gmbh W C Improvements in or relating to the vacuum degassing of metals
DE1222090B (de) * 1960-09-09 1966-08-04 Heraeus Gmbh W C Verfahren zum Entgasen von Stahlschmelzen
US3320053A (en) * 1964-09-25 1967-05-16 Bethlehem Steel Corp Method of injecting gases into steel melts

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no.31 (C-327)[2088], 06 February 1986# *
PATENT ABSTRACTS OF JAPAN, vol. 10, no.31 (C-327)[2088], 6th February 1986; & JP-A-60 184 619 (SUMITOMO KINZOKU KOGYO K.K.) 20-09-1985 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 118 (C-167)[1263], 21st May 1983; & JP-A-58 37 112 (KAWASAKI SEITETSU K.K.) 04-03-1983 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 43 (C-152)[1188], 19th February 1983; & JP-A-57 194 206 (KAWASAKI SEITETSU K.K.) 29-11-1982 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 53 (C-154)[1198], 03 March 1983# *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 53 (C-154)[1198], 3rd March 1983; & JP-A-57 200 514 (NIPPON KOKAN K.K.) 08-12-1982 *

Also Published As

Publication number Publication date
AU601893B2 (en) 1990-09-20
JPH02211974A (ja) 1990-08-23
JPH01188619A (ja) 1989-07-27
KR930005067B1 (ko) 1993-06-15
BR8900249A (pt) 1989-09-19
AU2848289A (en) 1989-08-10
CA1338397C (en) 1996-06-18
KR890012009A (ko) 1989-08-23
EP0325242A2 (en) 1989-07-26

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