DE3883190D1 - METHOD AND DEVICE FOR FINE METAL MELTING. - Google Patents

METHOD AND DEVICE FOR FINE METAL MELTING.

Info

Publication number
DE3883190D1
DE3883190D1 DE8888121503T DE3883190T DE3883190D1 DE 3883190 D1 DE3883190 D1 DE 3883190D1 DE 8888121503 T DE8888121503 T DE 8888121503T DE 3883190 T DE3883190 T DE 3883190T DE 3883190 D1 DE3883190 D1 DE 3883190D1
Authority
DE
Germany
Prior art keywords
fine metal
metal melting
melting
fine
metal
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
Application number
DE8888121503T
Other languages
German (de)
Other versions
DE3883190T2 (en
Inventor
Toshio C O Patent Licens Ishii
Yutaka C O Patent Licens Okubo
Shuzo C O Patent Licens Fukuda
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
Nippon Kokan Ltd
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 JP62326723A external-priority patent/JPH01170556A/en
Priority claimed from JP62326722A external-priority patent/JPH01170555A/en
Priority claimed from JP311288A external-priority patent/JP2629225B2/en
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Application granted granted Critical
Publication of DE3883190D1 publication Critical patent/DE3883190D1/en
Publication of DE3883190T2 publication Critical patent/DE3883190T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/567—Manufacture of steel by other methods operating in a continuous way
    • 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
    • C21C7/0081—Treating and handling under pressure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
DE88121503T 1987-12-25 1988-12-22 Method and device for refining molten metals. Expired - Fee Related DE3883190T2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP62326723A JPH01170556A (en) 1987-12-25 1987-12-25 Cleaning method for molten metal
JP62326722A JPH01170555A (en) 1987-12-25 1987-12-25 Cleaning method for molten metal
JP311388 1988-01-12
JP311288A JP2629225B2 (en) 1988-01-12 1988-01-12 Method for cleaning molten metal

Publications (2)

Publication Number Publication Date
DE3883190D1 true DE3883190D1 (en) 1993-09-16
DE3883190T2 DE3883190T2 (en) 1994-01-05

Family

ID=27453785

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88121503T Expired - Fee Related DE3883190T2 (en) 1987-12-25 1988-12-22 Method and device for refining molten metals.

Country Status (6)

Country Link
EP (1) EP0322763B1 (en)
KR (1) KR930005065B1 (en)
AU (1) AU605949B2 (en)
BR (1) BR8806870A (en)
CA (1) CA1337744C (en)
DE (1) DE3883190T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01188619A (en) * 1988-01-21 1989-07-27 Nkk Corp Method for rh vacuum degasification
CN104404205B (en) * 2014-10-27 2017-02-08 北京科技大学 Method for removing microscopic nonmetallic inclusion in molten steel by using nitrogen-increasing nitrogen-precipitating process

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168461B (en) * 1959-07-10 1964-04-23 Fischer Ag Georg Process for treating molten metal, in particular molten steel
AT256156B (en) * 1961-10-13 1967-08-10 Wilhelm Dipl Ing Dr Tech Stich Process and device for high pressure heat treatment in vacuum produced steel
FR1359312A (en) * 1963-03-14 1964-04-24 Siderurgie Fse Inst Rech Improvements to the degassing processes of molten metals
SE311533B (en) * 1963-11-11 1969-06-16 Asea Ab
DE1583287C3 (en) * 1967-11-30 1973-10-11 Salzgitter Ag, 1000 Berlin Und 3321 Salzgitter Device for carrying out reactions between liquids and gases, in particular for refining pig iron with oxygen
SE329410B (en) * 1968-01-31 1970-10-12 Asea Ab
BE735159A (en) * 1969-06-25 1969-12-29
HU179333B (en) * 1978-10-04 1982-09-28 Vasipari Kutato Intezet Method and apparatus for decreasing the unclusion contents and refining the structure of steels
FR2491954A1 (en) * 1980-10-14 1982-04-16 Pechiney Aluminium DEVICE FOR TREATING A LIQUID METAL BATH BY INJECTING GAS

Also Published As

Publication number Publication date
BR8806870A (en) 1989-08-29
CA1337744C (en) 1995-12-19
KR930005065B1 (en) 1993-06-15
DE3883190T2 (en) 1994-01-05
AU605949B2 (en) 1991-01-24
EP0322763A3 (en) 1990-02-07
KR890010223A (en) 1989-08-07
AU2703888A (en) 1989-08-17
EP0322763B1 (en) 1993-08-11
EP0322763A2 (en) 1989-07-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee