IT1174317B - Procedimento ed apparecchiatura per raffinare masse fuse a base di ferro - Google Patents

Procedimento ed apparecchiatura per raffinare masse fuse a base di ferro

Info

Publication number
IT1174317B
IT1174317B IT50089/78A IT5008978A IT1174317B IT 1174317 B IT1174317 B IT 1174317B IT 50089/78 A IT50089/78 A IT 50089/78A IT 5008978 A IT5008978 A IT 5008978A IT 1174317 B IT1174317 B IT 1174317B
Authority
IT
Italy
Prior art keywords
meltings
refining
melted
iron
procedure
Prior art date
Application number
IT50089/78A
Other languages
English (en)
Other versions
IT7850089A0 (it
Inventor
Peter Christov Savov
Vassil Georgiev Peev
Alexander Jordanov Valtschev
Nikola Angelov Lingorski
Original Assignee
Dso Cherna Metalurgia
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 Dso Cherna Metalurgia filed Critical Dso Cherna Metalurgia
Publication of IT7850089A0 publication Critical patent/IT7850089A0/it
Application granted granted Critical
Publication of IT1174317B publication Critical patent/IT1174317B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • 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
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • 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
    • C21C7/064—Dephosphorising; Desulfurising
    • 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)
  • 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)
IT50089/78A 1977-07-01 1978-06-29 Procedimento ed apparecchiatura per raffinare masse fuse a base di ferro IT1174317B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG3677277 1977-07-01

Publications (2)

Publication Number Publication Date
IT7850089A0 IT7850089A0 (it) 1978-06-29
IT1174317B true IT1174317B (it) 1987-07-01

Family

ID=3903575

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50089/78A IT1174317B (it) 1977-07-01 1978-06-29 Procedimento ed apparecchiatura per raffinare masse fuse a base di ferro

Country Status (13)

Country Link
US (2) US4200452A (it)
JP (2) JPS5440215A (it)
CA (1) CA1115759A (it)
CS (1) CS224701B1 (it)
DE (1) DE2828634C2 (it)
ES (1) ES471286A1 (it)
GB (1) GB2000523B (it)
IN (1) IN150219B (it)
IT (1) IT1174317B (it)
PL (1) PL208081A1 (it)
RO (2) RO75435B1 (it)
SE (1) SE449373B (it)
YU (2) YU155978A (it)

Families Citing this family (42)

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Publication number Priority date Publication date Assignee Title
JPS5552274Y2 (it) * 1975-09-11 1980-12-04
US4392636A (en) * 1981-07-22 1983-07-12 Swiss Aluminium Ltd. Apparatus for degassing molten metal
JPS5855674A (ja) * 1981-09-29 1983-04-02 石川島播磨重工業株式会社 製鋼用ア−ク炉
BG35678A1 (en) * 1981-12-01 1984-06-15 Savov Method and device for treating and refining liquid alloys
US4460164A (en) * 1982-04-12 1984-07-17 Scandinavian Lancers Aktiebolag Apparatus for refining of steel melts
US4431443A (en) * 1982-12-17 1984-02-14 Wentzell Joseph M Methods of vacuum arc melting
JPS6013014A (ja) * 1983-06-30 1985-01-23 Ishikawajima Harima Heavy Ind Co Ltd 取鍋精錬装置
US4514218A (en) * 1984-06-06 1985-04-30 Daidotokushuko Kabushikikaisha Reduced iron melting method using electric arc furnace
GB2164059A (en) * 1984-09-04 1986-03-12 Materials & Methods Ltd Treatment of molten iron
JPS6173817A (ja) * 1984-09-18 1986-04-16 Sumitomo Electric Ind Ltd 溶鋼制御精錬法および精錬装置
US4552587A (en) * 1984-09-28 1985-11-12 Nippon Kokan Kabushiki Kaisha Method of operating ladle refining furnace
DE3443740A1 (de) * 1984-10-11 1986-04-17 Fried. Krupp Gmbh, 4300 Essen Verfahren und vorrichtung zum halten oder erhoehen der temperatur einer metallschmelze
KR900004159B1 (ko) * 1985-05-29 1990-06-18 니홍 고강 가부시기 가이샤 아크 프로세스에 의한 용강의 가열방법
JPS61272311A (ja) * 1985-05-29 1986-12-02 Nippon Kokan Kk <Nkk> ア−クプロセスにおける加窒方法
CA1311787C (en) * 1986-06-24 1992-12-22 Masahisa Tate Method of bottom blowing operation of a steel making electric furnace
US4780134A (en) * 1986-09-23 1988-10-25 A. Finkl & Sons Co. Simplified method and apparatus for treating molten steel
US4761178A (en) * 1987-08-24 1988-08-02 Bethlehem Steel Corporation Process for heating molten steel contained in a ladle
US4790872A (en) * 1988-01-19 1988-12-13 Hamilton Specialty Bar Division Of Slater Industries, Inc. Additive for promoting slag formation in steel refining ladle
US4842642A (en) * 1988-01-19 1989-06-27 Hamilton Specialty Bar Division Of Slater Industries Inc. Additive for promoting slag formation in steel refining ladle
US4913732A (en) * 1988-05-19 1990-04-03 Nkk Corporation Method for smelting reduction in electric furnace
JPH077102B2 (ja) * 1988-10-21 1995-01-30 動力炉・核燃料開発事業団 廃棄物処理用溶融炉及びその加熱方法
US4950324A (en) * 1988-10-24 1990-08-21 A. Finkl & Sons Co. Tri-level method and apparatus for post melting treatment of molten steel
BE1004483A3 (fr) * 1990-06-29 1992-12-01 Cockerill Sambre Sa Procede de rechauffage d'un bain d'acier liquide.
JPH0491387U (it) * 1990-12-21 1992-08-10
DE4126237A1 (de) * 1991-08-08 1993-03-04 Radex Heraklith Vorgefertigtes einbauelement fuer elektro-lichtbogenoefen und zugehoeriger elektro-lichtbogenofen
DE4130397A1 (de) * 1991-09-12 1993-03-18 Kortec Ag Gleichstromofen mit einer herdelektrode, herdelektrode und elektrodenblock sowie betriebsverfahren fuer diesen ofen
DE4138120A1 (de) * 1991-11-19 1993-05-27 Fuchs Technology Ag Einschmelzaggregat mit ofenwiege
FR2705767B1 (fr) * 1993-05-27 1995-07-21 Lorraine Laminage Procédé et installation de production d'acier liquide à partir de matières ferreuses riches en matières carbonées.
AT403293B (de) * 1995-01-16 1997-12-29 Kct Tech Gmbh Verfahren und anlage zum herstellen von legierten stählen
US6294256B1 (en) 1997-11-12 2001-09-25 Bicc General Cable Industries, Inc. Compositions and electric cables
US6013202A (en) * 1998-07-29 2000-01-11 Bicc General Uk Cables Limited Compositions of matter and electric cables
US6592791B1 (en) * 1999-01-08 2003-07-15 General Cable Technologies Corporation Compositions and electric cables
US6274066B1 (en) 2000-10-11 2001-08-14 General Cable Technologies Corporation Low adhesion semi-conductive electrical shields
US6980580B2 (en) * 2003-08-23 2005-12-27 Alcoa Inc. Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace
CA2781898C (en) * 2009-11-25 2016-07-05 Fundacion Inasmet Inoculation process and device
US8287770B2 (en) * 2010-03-05 2012-10-16 General Cable Technologies Corporation Semiconducting composition
WO2012177990A1 (en) * 2011-06-24 2012-12-27 Graftech International Holdings Inc. Slag freeze-lining for electronic arc furnace
DE102014017497A1 (de) * 2014-11-27 2016-06-02 Sms Mevac Gmbh Deckelteil eines metallurgischen Schmelzgefäßes und metallurgisches Schmelzgefäß
GEP20166469B (en) * 2015-02-20 2016-04-25 Method for melting steel with one aggregate and aggregate
CN109628702B (zh) * 2019-01-16 2021-02-02 浙江万泰特钢有限公司 一种直流电弧电渣加热钢包炉
US20220389529A1 (en) * 2019-11-15 2022-12-08 Masercata Oy Direct current electric arc furnace
WO2023028283A1 (en) * 2021-08-27 2023-03-02 J.H. Fletcher & Co. System and method for porous plug removal and installation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE30801C1 (it) * 1911-05-13
US2909422A (en) * 1957-07-02 1959-10-20 Union Carbide Corp Method of improving the quality and productivity of electric arc furnace steel
US3761242A (en) * 1958-12-02 1973-09-25 Finkl & Sons Co Method of treating molten metal by gas purging rhtough a porous plug
US3203883A (en) * 1961-07-01 1965-08-31 Rcsearch Inst For Iron Steel A Method of refining molten metals by electrolyzing molten slag under arc discharge
US3501289A (en) * 1965-06-09 1970-03-17 Finkl & Sons Co Method and apparatus for adding heat to molten metal under vacuum
US3501290A (en) * 1966-08-29 1970-03-17 Finkl & Sons Co Method of treating molten metal with arc heat and vacuum
US3547622A (en) * 1968-06-12 1970-12-15 Pennwalt Corp D.c. powered plasma arc method and apparatus for refining molten metal
SE376634C (sv) * 1972-05-02 1985-10-28 Nipkti Cherna Metalurgia Sett att framstella stal medelst likstrom och ugn for genomforande av settet
SE382828B (sv) * 1974-06-24 1976-02-16 Asea Ab Sett att framstella stal i likstromsljusbagsugn samt likstromsljusbagsugn for genomforande av settet
SE396226B (sv) * 1974-09-20 1977-09-12 Asea Ab Sett och anordning for behandling av en metallsmelta
GB1504443A (en) * 1975-04-25 1978-03-22 Dso Cherna Metalurgia Method of steelmaking with direct current

Also Published As

Publication number Publication date
IN150219B (it) 1982-08-14
IT7850089A0 (it) 1978-06-29
DE2828634C2 (de) 1985-09-26
CA1115759A (en) 1982-01-05
GB2000523A (en) 1979-01-10
JPS61106705A (ja) 1986-05-24
DE2828634A1 (de) 1979-02-01
RO75435B1 (ro) 1984-07-30
SE7807257L (sv) 1979-01-02
SE449373B (sv) 1987-04-27
US4246023A (en) 1981-01-20
PL208081A1 (pl) 1979-03-26
US4200452A (en) 1980-04-29
JPS6132365B2 (it) 1986-07-26
YU155978A (en) 1982-10-31
ES471286A1 (es) 1979-10-01
CS224701B1 (en) 1984-01-16
JPH0224888B2 (it) 1990-05-31
JPS5440215A (en) 1979-03-29
GB2000523B (en) 1982-05-26
RO75135A (ro) 1984-05-23
YU172382A (en) 1984-02-29

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