FR2303858A1 - Oxygen treatment of molten cast iron to improve properties - where oxygen flow is restricted to eliminate smoke (BE130976) - Google Patents
Oxygen treatment of molten cast iron to improve properties - where oxygen flow is restricted to eliminate smoke (BE130976)Info
- Publication number
- FR2303858A1 FR2303858A1 FR7606944A FR7606944A FR2303858A1 FR 2303858 A1 FR2303858 A1 FR 2303858A1 FR 7606944 A FR7606944 A FR 7606944A FR 7606944 A FR7606944 A FR 7606944A FR 2303858 A1 FR2303858 A1 FR 2303858A1
- Authority
- FR
- France
- Prior art keywords
- oxygen
- melt
- cast iron
- pref
- molten cast
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- C21C1/00—Refining of pig-iron; Cast iron
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
In a process for purifying, modifying and raising the temp. of molten cast iron, by feeding in oxygen, the amt. of oxygen employed w.r.t. time is selected so that no smoke forms above the melt. The O2 is pref. fed into the melt until the desired saturation value or carbon equiv. is attained in the iron, or until the impurities are reduced to a desired level, or the temp. of the melt is increased by the required amt. The O2 is pref. supplied by a lance or a porous zone in the base of the vessel holding the melt, using max 0.15 Nm3 oxygen/minute. The process is pref. carried out in a cupola furnace. Due to the absence of smoke, no special fume extn. equipment or filtration devices are required.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2511297A DE2511297C2 (en) | 1975-03-14 | 1975-03-14 | Process for cleaning, modifying and increasing the temperature of cast iron melts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2303858A1 true FR2303858A1 (en) | 1976-10-08 |
| FR2303858B3 FR2303858B3 (en) | 1978-12-15 |
Family
ID=5941438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7606944A Granted FR2303858A1 (en) | 1975-03-14 | 1976-03-11 | Oxygen treatment of molten cast iron to improve properties - where oxygen flow is restricted to eliminate smoke (BE130976) |
Country Status (12)
| Country | Link |
|---|---|
| AT (1) | AT338853B (en) |
| AU (1) | AU505437B2 (en) |
| BE (1) | BE839562A (en) |
| BR (1) | BR7601512A (en) |
| CH (1) | CH601461A5 (en) |
| DE (1) | DE2511297C2 (en) |
| DK (1) | DK105976A (en) |
| ES (1) | ES446021A1 (en) |
| FR (1) | FR2303858A1 (en) |
| GR (1) | GR59311B (en) |
| NL (1) | NL7602626A (en) |
| ZA (1) | ZA761589B (en) |
-
1975
- 1975-03-14 DE DE2511297A patent/DE2511297C2/en not_active Expired
- 1975-04-08 AT AT264475A patent/AT338853B/en not_active IP Right Cessation
-
1976
- 1976-03-10 CH CH297076A patent/CH601461A5/xx not_active IP Right Cessation
- 1976-03-11 DK DK105976A patent/DK105976A/en not_active Application Discontinuation
- 1976-03-11 FR FR7606944A patent/FR2303858A1/en active Granted
- 1976-03-12 ES ES76446021A patent/ES446021A1/en not_active Expired
- 1976-03-12 BR BR7601512A patent/BR7601512A/en unknown
- 1976-03-12 BE BE6045398A patent/BE839562A/en not_active IP Right Cessation
- 1976-03-12 GR GR50290A patent/GR59311B/en unknown
- 1976-03-12 NL NL7602626A patent/NL7602626A/en not_active Application Discontinuation
- 1976-03-15 AU AU12018/76A patent/AU505437B2/en not_active Expired
- 1976-03-15 ZA ZA761589A patent/ZA761589B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2303858B3 (en) | 1978-12-15 |
| DK105976A (en) | 1976-09-15 |
| DE2511297C2 (en) | 1984-05-17 |
| NL7602626A (en) | 1976-09-16 |
| BR7601512A (en) | 1976-09-14 |
| AU505437B2 (en) | 1979-11-22 |
| DE2511297A1 (en) | 1976-09-23 |
| AU1201876A (en) | 1977-09-22 |
| AT338853B (en) | 1977-09-26 |
| ES446021A1 (en) | 1977-06-01 |
| ATA264475A (en) | 1977-01-15 |
| ZA761589B (en) | 1977-05-25 |
| BE839562A (en) | 1976-09-13 |
| GR59311B (en) | 1977-12-12 |
| CH601461A5 (en) | 1978-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES472730A1 (en) | Process for producing stainless steels | |
| JPS5687617A (en) | Steel making method using arc furnace | |
| ES486145A1 (en) | Argon in the basic oxygen process to control slopping | |
| FR2303858A1 (en) | Oxygen treatment of molten cast iron to improve properties - where oxygen flow is restricted to eliminate smoke (BE130976) | |
| ES8203973A1 (en) | Method for refining a molten metal bath in a crucible with oxygen injection from above, and crucible used therefor. | |
| GB1243568A (en) | Suspension smelting and refining of metals | |
| FR2283231A1 (en) | PROCESS FOR THE REFINING OF STEEL BY BOTTOM OXYGEN BLOWING WITH AN INERT GAS DURING THE LAST PERIOD | |
| JPS51126302A (en) | A method of controlling melt levels of iron etc. and an apparatus for it | |
| ES8100349A1 (en) | A method for increasing vessel lining life for basic oxygen furnaces. | |
| KR900004158B1 (en) | Process for the removal of contaminating elements from pig-iron steel other metals and metal alloys | |
| FR2230732A1 (en) | Controlling foaming of slag in steel refining - using values determined from off-gases | |
| GB1469473A (en) | Apparatus for use in the continuous production of steel from iron ore pellets sinter or the like | |
| SU384875A1 (en) | METAL WASHING METHOD | |
| RO81435A (en) | PROCESS FOR PRODUCING CONVERTER STEEL | |
| SU947195A1 (en) | Method for blasting molten metal | |
| GB738510A (en) | Process for removing magnesium from aluminium | |
| SU520407A1 (en) | The method of processing liquid steel | |
| RU2146717C1 (en) | Method of steels and alloys melting | |
| JPS55158210A (en) | Production of extra low carbon steel | |
| JPS5378913A (en) | Refining method for steel for decreasing generating amount of slag | |
| FR2204692A1 (en) | Making addns to steel melts - in ladles without slag contamination | |
| JPS55115914A (en) | Refining method of high chromium steel | |
| JPS56130417A (en) | Decarburizing method for stainless steel in arc furnace | |
| JPS5244715A (en) | Continuous method of refining molten iron alloy by using alkali metal compoun | |
| SU1041572A1 (en) | Method for gas and oxygen blowing of glass smelting bath |