BR8806870A - METHOD AND APPLIANCE FOR FUSING METAL CLEANING - Google Patents

METHOD AND APPLIANCE FOR FUSING METAL CLEANING

Info

Publication number
BR8806870A
BR8806870A BR888806870A BR8806870A BR8806870A BR 8806870 A BR8806870 A BR 8806870A BR 888806870 A BR888806870 A BR 888806870A BR 8806870 A BR8806870 A BR 8806870A BR 8806870 A BR8806870 A BR 8806870A
Authority
BR
Brazil
Prior art keywords
appliance
metal cleaning
fusing metal
fusing
cleaning
Prior art date
Application number
BR888806870A
Other languages
Portuguese (pt)
Inventor
Toshio Ishii
Yutaka Okubo
Shuzo Fukuda
Original Assignee
Nippon Kokan Kk
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 Nippon Kokan Kk filed Critical Nippon Kokan Kk
Publication of BR8806870A publication Critical patent/BR8806870A/en

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)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Manufacture And Refinement Of Metals (AREA)
BR888806870A 1987-12-25 1988-12-26 METHOD AND APPLIANCE FOR FUSING METAL CLEANING BR8806870A (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
JP311288A JP2629225B2 (en) 1988-01-12 1988-01-12 Method for cleaning molten metal
JP311388 1988-01-12

Publications (1)

Publication Number Publication Date
BR8806870A true BR8806870A (en) 1989-08-29

Family

ID=27453785

Family Applications (1)

Application Number Title Priority Date Filing Date
BR888806870A BR8806870A (en) 1987-12-25 1988-12-26 METHOD AND APPLIANCE FOR FUSING METAL CLEANING

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
EP0322763A3 (en) 1990-02-07
DE3883190D1 (en) 1993-09-16
KR930005065B1 (en) 1993-06-15
EP0322763A2 (en) 1989-07-05
AU2703888A (en) 1989-08-17
DE3883190T2 (en) 1994-01-05
AU605949B2 (en) 1991-01-24
CA1337744C (en) 1995-12-19
EP0322763B1 (en) 1993-08-11
KR890010223A (en) 1989-08-07

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG Letter patent granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 26/12/2003