SE7800823L - INJECTION PROCEDURE - Google Patents

INJECTION PROCEDURE

Info

Publication number
SE7800823L
SE7800823L SE7800823A SE7800823A SE7800823L SE 7800823 L SE7800823 L SE 7800823L SE 7800823 A SE7800823 A SE 7800823A SE 7800823 A SE7800823 A SE 7800823A SE 7800823 L SE7800823 L SE 7800823L
Authority
SE
Sweden
Prior art keywords
melt
powdered material
carrier gas
arc
electrode
Prior art date
Application number
SE7800823A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE431994B (en
Inventor
M Eidem
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE7800823A priority Critical patent/SE431994B/en
Priority to DE19792900864 priority patent/DE2900864A1/en
Priority to IT19387/79A priority patent/IT1110692B/en
Priority to FR7901377A priority patent/FR2415148B1/en
Priority to GB7902235A priority patent/GB2014615B/en
Priority to JP597579A priority patent/JPS54110117A/en
Publication of SE7800823L publication Critical patent/SE7800823L/en
Publication of SE431994B publication Critical patent/SE431994B/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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • 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
    • 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
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents

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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Powdered material is injected into a metallurgical melt 6, for example a steel melt, for refining and/or decarburisation of the melt, the material being supplied to the melt via a through-channel 5 in at least one arc electrode 4 which terminates above the surface of the melt. An arc 7 is maintained between the electrode(s) 4 and the melt 6 while the powdered material is continuously supplied with the help of a carrier gas 3, for example argon, other inert gas, nitrogen, oxygen or air, under such a pressure that the powdered material penetrates down into the melt below the surface thereof and the desired reaction in the melt is obtained. Suitably, the powdered material is given such a speed by the carrier gas that it penetrates into the melt at least 5 mm, preferably at least 1 cm, for example from 10 to 30 cm. <IMAGE>
SE7800823A 1978-01-24 1978-01-24 PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL SE431994B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE7800823A SE431994B (en) 1978-01-24 1978-01-24 PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL
DE19792900864 DE2900864A1 (en) 1978-01-24 1979-01-11 PROCESS FOR INJECTING POWDERED MATERIAL INTO A METALLURGICAL MELT
IT19387/79A IT1110692B (en) 1978-01-24 1979-01-17 PROCEDURE FOR THE INJECTION OF A POWDERED MATERIAL INTO A MELTED METALLURGIC BATH
FR7901377A FR2415148B1 (en) 1978-01-24 1979-01-19 PROCESS FOR INJECTING MATERIAL INTO A METAL MELT
GB7902235A GB2014615B (en) 1978-01-24 1979-01-22 Injection of powdered material into metallurgical melts
JP597579A JPS54110117A (en) 1978-01-24 1979-01-22 Method of pouring powder material into metallurgical molten material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7800823A SE431994B (en) 1978-01-24 1978-01-24 PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL

Publications (2)

Publication Number Publication Date
SE7800823L true SE7800823L (en) 1979-07-25
SE431994B SE431994B (en) 1984-03-12

Family

ID=20333743

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7800823A SE431994B (en) 1978-01-24 1978-01-24 PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL

Country Status (6)

Country Link
JP (1) JPS54110117A (en)
DE (1) DE2900864A1 (en)
FR (1) FR2415148B1 (en)
GB (1) GB2014615B (en)
IT (1) IT1110692B (en)
SE (1) SE431994B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629055A1 (en) * 1986-08-27 1988-03-03 Kloeckner Cra Tech METHOD FOR INCREASING ENERGY IN ELECTRIC ARC FURNACES
AT396942B (en) * 1991-12-16 1993-12-27 Voest Alpine Ind Anlagen METHOD FOR PRODUCING METAL MELT, IN PARTICULAR STEEL MELT
DE4310779C2 (en) * 1993-03-26 1996-08-14 Mannesmann Ag Process and device for the disposal of filter materials
WO1995025822A1 (en) * 1994-03-18 1995-09-28 Sahm P R Casting materials
AT403293B (en) * 1995-01-16 1997-12-29 Kct Tech Gmbh METHOD AND INSTALLATION FOR THE PRODUCTION OF ALLOY STEELS
AT404841B (en) * 1995-04-10 1999-03-25 Voest Alpine Ind Anlagen SYSTEM AND METHOD FOR PRODUCING MELTING IRON
DE102006029725B4 (en) 2006-06-28 2008-08-28 Siemens Ag Method and device for introducing dusts into a molten metal of a pyrometallurgical plant
DE102007048962A1 (en) * 2007-10-12 2009-04-16 Sms Demag Ag electric oven

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1186694A (en) * 1956-12-05 1959-08-31 British Oxygen Co Ltd Treatment of molten metals and alloys
FR1186745A (en) * 1957-11-26 1959-08-31 British Oxygen Co Ltd Treatment of molten metals and alloys
DE1508256A1 (en) * 1966-04-30 1970-04-30 Schenck Dr Ing Dr Ing E H Herm Process for introducing hydrocarbons into ovens with direct electrical heating
JPS5051919A (en) * 1973-09-10 1975-05-09

Also Published As

Publication number Publication date
FR2415148B1 (en) 1985-09-13
DE2900864C2 (en) 1987-08-06
DE2900864A1 (en) 1979-07-26
GB2014615B (en) 1982-10-13
JPS54110117A (en) 1979-08-29
GB2014615A (en) 1979-08-30
SE431994B (en) 1984-03-12
IT7919387A0 (en) 1979-01-17
FR2415148A1 (en) 1979-08-17
JPS6213410B2 (en) 1987-03-26
IT1110692B (en) 1985-12-23

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