BR8905068A - METAL FUSION CLEANING PROCESS - Google Patents

METAL FUSION CLEANING PROCESS

Info

Publication number
BR8905068A
BR8905068A BR898905068A BR8905068A BR8905068A BR 8905068 A BR8905068 A BR 8905068A BR 898905068 A BR898905068 A BR 898905068A BR 8905068 A BR8905068 A BR 8905068A BR 8905068 A BR8905068 A BR 8905068A
Authority
BR
Brazil
Prior art keywords
cleaning process
metal fusion
fusion cleaning
metal
fusion
Prior art date
Application number
BR898905068A
Other languages
Portuguese (pt)
Inventor
Toshio Ishii
Shunichi Sugiyama
Yoshiteru Kikuchi
Hidetoshi Matsuno
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 JP25080688A external-priority patent/JP2718096B2/en
Priority claimed from JP63250807A external-priority patent/JPH0742524B2/en
Priority claimed from JP1031105A external-priority patent/JPH02211974A/en
Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk
Publication of BR8905068A publication Critical patent/BR8905068A/en

Links

Classifications

    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/04—Blast roasting
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Manufacture And Refinement Of Metals (AREA)
BR898905068A 1988-10-06 1989-10-05 METAL FUSION CLEANING PROCESS BR8905068A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP25080688A JP2718096B2 (en) 1988-10-06 1988-10-06 Vacuum cleaning method for molten metal
JP63250807A JPH0742524B2 (en) 1988-10-06 1988-10-06 Method for cleaning molten metal
JP1031105A JPH02211974A (en) 1988-01-21 1989-02-13 Method for purifying molten metal by reduction of pressure

Publications (1)

Publication Number Publication Date
BR8905068A true BR8905068A (en) 1990-05-08

Family

ID=27287204

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898905068A BR8905068A (en) 1988-10-06 1989-10-05 METAL FUSION CLEANING PROCESS

Country Status (6)

Country Link
EP (1) EP0362851B1 (en)
KR (1) KR920006578B1 (en)
AU (2) AU4245789A (en)
BR (1) BR8905068A (en)
CA (1) CA1339703C (en)
DE (1) DE68905741T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004495A (en) * 1990-02-05 1991-04-02 Labate M D Method for producing ultra clean steel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1582780A (en) * 1968-01-10 1969-10-10
US3635696A (en) * 1968-05-21 1972-01-18 Finkl & Sons Co Treatment of molten metal using arc heat and vacuum
DE2710577A1 (en) * 1977-03-11 1978-09-14 Thyssen Edelstahlwerke Ag METHOD OF REFRESHING STEEL
DE3426736A1 (en) * 1984-07-20 1986-01-30 Klöckner CRA Technologie GmbH, 4100 Duisburg METHOD FOR THE PURGE GAS TREATMENT OF METAL MELT
GB2162604B (en) * 1984-07-30 1988-05-25 Teves Gmbh Alfred Braking pressure generator for a hydraulic brake system
US4780134A (en) * 1986-09-23 1988-10-25 A. Finkl & Sons Co. Simplified method and apparatus for treating molten steel

Also Published As

Publication number Publication date
DE68905741T2 (en) 1993-09-23
AU655245B2 (en) 1994-12-08
AU1397692A (en) 1992-05-28
KR920006578B1 (en) 1992-08-10
AU4245789A (en) 1990-08-16
EP0362851B1 (en) 1993-03-31
CA1339703C (en) 1998-03-10
EP0362851A3 (en) 1990-06-20
DE68905741D1 (en) 1993-05-06
KR900006541A (en) 1990-05-08
EP0362851A2 (en) 1990-04-11

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Legal Events

Date Code Title Description
FB20 Grant procedure suspended (art. 20)
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 05/10/2009