SE7800823L - INJECTION PROCEDURE - Google Patents
INJECTION PROCEDUREInfo
- 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
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>
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 |
JP597579A JPS54110117A (en) | 1978-01-24 | 1979-01-22 | Method of pouring powder material into metallurgical molten material |
GB7902235A GB2014615B (en) | 1978-01-24 | 1979-01-22 | Injection of powdered material into metallurgical melts |
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)
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)
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 |
-
1978
- 1978-01-24 SE SE7800823A patent/SE431994B/en not_active IP Right Cessation
-
1979
- 1979-01-11 DE DE19792900864 patent/DE2900864A1/en active Granted
- 1979-01-17 IT IT19387/79A patent/IT1110692B/en active
- 1979-01-19 FR FR7901377A patent/FR2415148B1/en not_active Expired
- 1979-01-22 JP JP597579A patent/JPS54110117A/en active Granted
- 1979-01-22 GB GB7902235A patent/GB2014615B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS54110117A (en) | 1979-08-29 |
GB2014615A (en) | 1979-08-30 |
IT7919387A0 (en) | 1979-01-17 |
JPS6213410B2 (en) | 1987-03-26 |
FR2415148A1 (en) | 1979-08-17 |
FR2415148B1 (en) | 1985-09-13 |
GB2014615B (en) | 1982-10-13 |
DE2900864C2 (en) | 1987-08-06 |
SE431994B (en) | 1984-03-12 |
DE2900864A1 (en) | 1979-07-26 |
IT1110692B (en) | 1985-12-23 |
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Legal Events
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