NO123433B - - Google Patents

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Info

Publication number: NO123433B
Authority: NO; Norway
Prior art keywords: furnace; electrodes; direct current; top electrodes; oven
Prior art date: 1967-06-10

Application number

NO2155/68A

Other languages

English (en)

Norwegian (no)

Inventor

J Matsumoto

Original Assignee

Tohoku Special Steel Works 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.)

1967-06-10

Filing date

1968-06-01

Publication date

1971-11-15

1968-06-01 Application filed by Tohoku Special Steel Works Ltd filed Critical Tohoku Special Steel Works Ltd

1971-11-15 Publication of NO123433B publication Critical patent/NO123433B/no

Links

239000002184 metal Substances 0.000 claims description 40
229910052751 metal Inorganic materials 0.000 claims description 40
229910000831 Steel Inorganic materials 0.000 claims description 37
238000007670 refining Methods 0.000 claims description 37
239000010959 steel Substances 0.000 claims description 37
238000002844 melting Methods 0.000 claims description 27
230000008018 melting Effects 0.000 claims description 27
238000000034 method Methods 0.000 claims description 18
238000003756 stirring Methods 0.000 claims description 13
239000000446 fuel Substances 0.000 claims description 7
239000002893 slag Substances 0.000 claims description 7
238000010891 electric arc Methods 0.000 claims description 5
239000000696 magnetic material Substances 0.000 claims description 5
239000007788 liquid Substances 0.000 claims description 4
230000000694 effects Effects 0.000 claims description 2
229910000851 Alloy steel Inorganic materials 0.000 claims 1
239000007769 metal material Substances 0.000 claims 1
230000007704 transition Effects 0.000 claims 1
238000006243 chemical reaction Methods 0.000 description 6
238000010438 heat treatment Methods 0.000 description 5
238000005275 alloying Methods 0.000 description 3
230000005611 electricity Effects 0.000 description 3
239000000203 mixture Substances 0.000 description 3
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
238000003723 Smelting Methods 0.000 description 2
238000005868 electrolysis reaction Methods 0.000 description 2
239000000295 fuel oil Substances 0.000 description 2
238000009434 installation Methods 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
239000000047 product Substances 0.000 description 2
239000013589 supplement Substances 0.000 description 2
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
235000019738 Limestone Nutrition 0.000 description 1
229910001209 Low-carbon steel Inorganic materials 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
239000005864 Sulphur Substances 0.000 description 1
238000013019 agitation Methods 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
230000000295 complement effect Effects 0.000 description 1
230000003111 delayed effect Effects 0.000 description 1
229910001882 dioxygen Inorganic materials 0.000 description 1
238000009826 distribution Methods 0.000 description 1
239000010436 fluorite Substances 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
239000006028 limestone Substances 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000002994 raw material Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
238000009827 uniform distribution Methods 0.000 description 1

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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5241—Manufacture of steel in electric furnaces in an inductively heated furnace
- C21C5/5247—Manufacture of steel in electric furnaces in an inductively heated furnace processing a moving metal stream while exposed to an electromagnetic field, e.g. in an electromagnetic counter current channel
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/34—Arrangements for circulation of melts
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0083—Means for stirring the charge
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Materials Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Electromagnetism (AREA)
Geology (AREA)
Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
General Life Sciences & Earth Sciences (AREA)
Environmental & Geological Engineering (AREA)
Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

NO2155/68A 1967-06-10 1968-06-01 NO123433B (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP3676467		1967-06-10

Publications (1)

Publication Number	Publication Date
NO123433B true NO123433B (de)	1971-11-15

Family

ID=12478804

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO2155/68A NO123433B (de)	1967-06-10	1968-06-01

Country Status (2)

Country	Link
FR (1)	FR1570814A (de)
NO (1)	NO123433B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ATE34901T1 (de) *	1984-01-31	1988-06-15	Bbc Brown Boveri & Cie	Bodenelektrode fuer einen gleichstromlichtbogenofen.
EP0150483B1 (de) *	1984-01-31	1988-06-01	BBC Brown Boveri AG	Bodenelektrodenarordnung für einen elektrischen Ofen

1968
- 1968-06-01 NO NO2155/68A patent/NO123433B/no unknown
- 1968-06-10 FR FR1570814D patent/FR1570814A/fr not_active Expired

Also Published As

Publication number	Publication date
FR1570814A (de)	1969-06-13

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US3949151A (en)	1976-04-06	Arc furnaces
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US20140355642A1 (en)	2014-12-04	Electric arc furnace and method of operating same
US12065709B2 (en)	2024-08-20	Method of stirring liquid metal in an electric arc furnace
NO123433B (de)	1971-11-15
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CN211233948U (zh)	2020-08-11	一种吹氩型电炉盖
ATE134817T1 (de)	1996-03-15	Gleichstromlichtbogenofen
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SE438730B (sv)	1985-04-29	Forfarande och anordning for smeltning och ev raffinering, samt varmhallning av sa erhallen smelta
US20080192796A1 (en)	2008-08-14	Method and Device for Operating an Electric-Arc Furnace
US1514102A (en)	1924-11-04	Process oe treating metal
US3358067A (en)	1967-12-12	Electric melt vessel
NO175560B (no)	1994-07-18	Elektro-reduksjonsovn
CN1039061A (zh)	1990-01-24	以废钢屑熔炼钢的方法
RU2653957C1 (ru)	2018-05-15	Устройство для обработки металла в ковше
CN101120103A (zh)	2008-02-06	用于熔化金属的或含金属的炉料的炉子设备及方法
US1917730A (en)	1933-07-11	Electric furnace
US3383450A (en)	1968-05-14	Electric melt vessel having means for reducing cold spot areas therein