ES8200725A1 - Un procedimiento de descarburacion de una fundicion de cromo - Google Patents
Un procedimiento de descarburacion de una fundicion de cromoInfo
- Publication number
- ES8200725A1 ES8200725A1 ES498749A ES498749A ES8200725A1 ES 8200725 A1 ES8200725 A1 ES 8200725A1 ES 498749 A ES498749 A ES 498749A ES 498749 A ES498749 A ES 498749A ES 8200725 A1 ES8200725 A1 ES 8200725A1
- Authority
- ES
- Spain
- Prior art keywords
- oxygen
- chromium
- decarburization
- pig iron
- bath
- 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.)
- Expired
Links
- 239000011651 chromium Substances 0.000 title abstract 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052804 chromium Inorganic materials 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 239000000155 melt Substances 0.000 title 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 5
- 229910052760 oxygen Inorganic materials 0.000 abstract 5
- 239000001301 oxygen Substances 0.000 abstract 5
- 229910000805 Pig iron Inorganic materials 0.000 abstract 3
- 238000005261 decarburization Methods 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 229910018487 Ni—Cr Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000007792 addition Methods 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910001120 nichrome Inorganic materials 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 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
- 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
- C21C7/0685—Decarburising of stainless steel
-
- 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
- C21C5/005—Manufacture of stainless steel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Continuous Casting (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Control Of El Displays (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Mold Materials And Core Materials (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Adornments (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Pinball Game Machines (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
PROCEDIMIENTO DE DESCARBURACION DE UNA FUNDICION CON CONTENIDOS DE CR DEL 10 AL 30 POR 100, DE HASTA UN 30 POR 100 DE NI, DEL 1,5 AL 8 POR 100 EN C Y EVENTUALES ADICIONES DE CO, MN Y MO. CONSISTE EN EFECTUAR LA DESCARBURACION EN UN CONVERTIDOR DE REFRACTARIO BASICO POR MEDIO DE UN CHORRO DE OXIGENO QUE POSEE UNA ZONA SUPERSONICA QUE IMPACTA CONTRA LA SUPERIFICIE DE LA FUNCION LIQUIDA PROVOCANDO, AL MENOS EN LA FASE FINAL DE LA DESCARBURACION, LA FORMACION DE UNA EMULSION DE GAS-FUNDICION EN EL SENO DE LA CUAL EL CARBONO ES OXIDADO DIRECTAMENTE POR EL OXIGENO, EMPEZANDO ESTA FASE FINAL CUANDO EL CONTENIDO DE CARBONO DE LA FUNDICION DE CROMO-NIQUEL ES IGUAL A CD/N, EN QUE CD REPRESENTA EL PORCENTAJE DE C INICIAL DE LA FUNDICION Y N ESTA COMPRENDIDO ENTRE 1, Y 2,5. TAL DESCARBURACION POR ACCION DIRECTA DEL OXIGENO SOBRE EL BAÑO SE HACE PROSEGUIR HASTA UN CONTENIDO DE C EN EL BAÑO INFERIOR AL 0,3 POR 100, CONSIGUIENDOE DE ESTA FORMA RENDIMIENTOS EN CR DEL 97 POR 100 MINIMO SIN ADICION DE ELEMENTOS NI COMPUESTOS REDUCTORES. PARA QUE SE FORME LA EMULSION DE GAS-FUNDICION SE DEBE SATISFACER QUE TD+65 CD >= 1.740, DESIGUALDAD EN QUE CD TIENE EL SIGNIFICADO ANTERIORMENTE DICHO Y TD REPRESENTA LA TEMPERATURA INICIAL DE LA FUNDICION LIQUIDA EN C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8001809A FR2474531B1 (fr) | 1980-01-24 | 1980-01-24 | Procede de decarburation des fontes au chrome, pour l'elaboration d'aciers inoxydables, par jet d'oxygene supersonique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES498749A0 ES498749A0 (es) | 1981-11-01 |
| ES8200725A1 true ES8200725A1 (es) | 1981-11-01 |
Family
ID=9237950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES498749A Expired ES8200725A1 (es) | 1980-01-24 | 1981-01-23 | Un procedimiento de descarburacion de una fundicion de cromo |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US4324584A (es) |
| EP (1) | EP0033289B1 (es) |
| JP (1) | JPS56116814A (es) |
| AT (1) | ATE10508T1 (es) |
| AU (1) | AU531039B2 (es) |
| BR (1) | BR8100314A (es) |
| CA (1) | CA1154967A (es) |
| DE (1) | DE3167358D1 (es) |
| ES (1) | ES8200725A1 (es) |
| FI (1) | FI68862C (es) |
| FR (1) | FR2474531B1 (es) |
| IN (1) | IN153729B (es) |
| NO (1) | NO810242L (es) |
| PH (1) | PH16313A (es) |
| SU (1) | SU1170974A3 (es) |
| TR (1) | TR21061A (es) |
| YU (1) | YU9681A (es) |
| ZA (1) | ZA81411B (es) |
| ZW (1) | ZW1281A1 (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2540519A2 (fr) * | 1980-08-26 | 1984-08-10 | Ugine Aciers | Buse d'injection d'oxygene a jet supersonique stabilise pour la decarburation des fontes et, en particulier, des fontes au chrome |
| FR2489368A1 (fr) * | 1980-08-26 | 1982-03-05 | Ugine Aciers | Nouvelle buse pour lance d'injection d'oxygene pour la decarburation des fontes et application a la decarburation des fontes au chrome |
| JPS59145717A (ja) * | 1983-02-04 | 1984-08-21 | ユジンヌ・アシエ | 鋳鉄，特にクロム鋳鉄を脱炭するための安定した超音速流を噴出する酸素噴射ノズル |
| US5474737A (en) * | 1993-07-01 | 1995-12-12 | The United States Of America As Represented By The Secretary Of Commerce | Alloys for cryogenic service |
| JP3167888B2 (ja) * | 1995-07-27 | 2001-05-21 | 川崎製鉄株式会社 | 含クロム溶鋼の脱炭精錬方法及び精錬ガス用上吹ランス |
| US8597398B2 (en) * | 2009-03-19 | 2013-12-03 | Massachusetts Institute Of Technology | Method of refining the grain structure of alloys |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1309507A (fr) * | 1960-11-18 | 1962-11-16 | Union Carbide Corp | Procédé de décarburation des aciers à teneur élevée en chrome |
| FR1407182A (fr) * | 1963-06-25 | 1965-07-30 | Allegheny Ludlum Steel | Perfectionnements aux procédés de fabrication d'aciers résistants à la corrosion |
| US3575696A (en) * | 1968-09-19 | 1971-04-20 | Jones & Laughlin Steel Corp | Process for controlling the manufacture of high-chromium steels |
| US3507642A (en) * | 1969-06-02 | 1970-04-21 | Allegheny Ludlum Steel | Process for producing corrosion resistant steel |
| BE778449A (fr) * | 1971-02-16 | 1972-05-16 | Krupp Ag Huettenwerke | Procede pour l'acceleration de reaction metallurgiques et dispositif pour la mise en oeuvre du procede |
| US3793002A (en) * | 1971-10-14 | 1974-02-19 | Siderurgie Fse Inst Rech | Method of introducing a combustible auxiliary liquid into blast furnace and a tuyere for carrying out the method |
| FR2267376B1 (es) * | 1974-04-11 | 1977-06-24 | Creusot Loire | |
| DE2651922C3 (de) * | 1976-11-13 | 1979-06-21 | Stahlwerke Peine-Salzgitter Ag, 3150 Peine | Verfahren zum Steuern des Frischablaufs beim Frischen von Roheisen |
-
1980
- 1980-01-24 FR FR8001809A patent/FR2474531B1/fr not_active Expired
- 1980-12-04 PH PH24944A patent/PH16313A/en unknown
- 1980-12-05 IN IN1349/CAL/80A patent/IN153729B/en unknown
- 1980-12-31 US US06/221,903 patent/US4324584A/en not_active Expired - Fee Related
-
1981
- 1981-01-13 TR TR21061A patent/TR21061A/xx unknown
- 1981-01-16 YU YU00096/81A patent/YU9681A/xx unknown
- 1981-01-19 AU AU66303/81A patent/AU531039B2/en not_active Ceased
- 1981-01-19 SU SU813229959A patent/SU1170974A3/ru active
- 1981-01-20 DE DE8181420006T patent/DE3167358D1/de not_active Expired
- 1981-01-20 AT AT81420006T patent/ATE10508T1/de not_active IP Right Cessation
- 1981-01-20 CA CA000368903A patent/CA1154967A/fr not_active Expired
- 1981-01-20 EP EP81420006A patent/EP0033289B1/fr not_active Expired
- 1981-01-21 BR BR8100314A patent/BR8100314A/pt not_active IP Right Cessation
- 1981-01-21 ZW ZW12/81A patent/ZW1281A1/xx unknown
- 1981-01-21 ZA ZA00810411A patent/ZA81411B/xx unknown
- 1981-01-22 JP JP855881A patent/JPS56116814A/ja active Pending
- 1981-01-23 ES ES498749A patent/ES8200725A1/es not_active Expired
- 1981-01-23 FI FI810188A patent/FI68862C/fi not_active IP Right Cessation
- 1981-01-23 NO NO810242A patent/NO810242L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| YU9681A (en) | 1983-04-30 |
| AU531039B2 (en) | 1983-08-04 |
| IN153729B (es) | 1984-08-11 |
| DE3167358D1 (en) | 1985-01-10 |
| TR21061A (tr) | 1983-06-13 |
| SU1170974A3 (ru) | 1985-07-30 |
| FI68862B (fi) | 1985-07-31 |
| ES498749A0 (es) | 1981-11-01 |
| JPS56116814A (en) | 1981-09-12 |
| AU6630381A (en) | 1981-07-30 |
| FR2474531A1 (fr) | 1981-07-31 |
| ATE10508T1 (de) | 1984-12-15 |
| ZA81411B (en) | 1982-02-24 |
| CA1154967A (fr) | 1983-10-11 |
| PH16313A (en) | 1983-09-05 |
| US4324584A (en) | 1982-04-13 |
| FI810188L (fi) | 1981-07-25 |
| NO810242L (no) | 1981-07-27 |
| BR8100314A (pt) | 1981-08-11 |
| EP0033289A1 (fr) | 1981-08-05 |
| FI68862C (fi) | 1985-11-11 |
| EP0033289B1 (fr) | 1984-11-28 |
| ZW1281A1 (en) | 1981-04-15 |
| FR2474531B1 (fr) | 1986-08-14 |
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