ES8606505A1 - Procedimiento de afinar una fundicion por el fondo - Google Patents

Procedimiento de afinar una fundicion por el fondo

Info

Publication number
ES8606505A1
ES8606505A1 ES541084A ES541084A ES8606505A1 ES 8606505 A1 ES8606505 A1 ES 8606505A1 ES 541084 A ES541084 A ES 541084A ES 541084 A ES541084 A ES 541084A ES 8606505 A1 ES8606505 A1 ES 8606505A1
Authority
ES
Spain
Prior art keywords
oxidizing gas
dilution curve
mixture
straight line
line portions
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
Application number
ES541084A
Other languages
English (en)
Other versions
ES541084A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9301846&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8606505(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of ES541084A0 publication Critical patent/ES541084A0/es
Publication of ES8606505A1 publication Critical patent/ES8606505A1/es
Expired legal-status Critical Current

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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Manufacture And Refinement Of Metals (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)
  • Mold Materials And Core Materials (AREA)

Abstract

PROCEDIMIENTO MODIFICADO PARA AFINAR UNA FUNDICION POR EL FONDO. COMPRENDE: A) INYECTAR EN EL BAÑO DE METAL DE FUSION UN (G.O); Y B) INSUFLAR DURANTE EL ULTIMO PERIODO DEL AFINO UNA MEZCLA DE (G.O) Y DE (G.I), PARA ASEGURAR LA DILUCION DEL (G.O), HACIENDO VARIAR EL CONTENIDO DE (G.I) DE LA MEZCLA EN FUNCION DEL CONTENIDO DE C DEL BAÑO, SEGUN UNA LEY QUE CORRESPONDE A UNA CURVA DE DILUCION DEL (G.O) SITUADA EN UNA ZONA DETERMINADA POR DOS CURVAS ENVOLVENTES; UNA PRIMERA CURVA DE DILUCION MAXIMA DEFINIDA POR LAS PORCIONES DE RECTAS: X F C766,7% C B 168,7 PARA 0,16 H C H 0,22; X F C550% C B 134 PARA 0,1 H C H 0,16; X F C 233% C B 102 PARA C H 0,1, Y UNA SEGUNDA CURVA DE DILUCION MINIMA DEFINIDA POR LAS PORCIONES DE RECTAS: X F C1.500% CB 255 PARA 0,14 H C H C H 0,17; X F C 400% C B 101 PARA 0,1 H C H 0,14; X F C230% C B 84 PARA 0,05 H C H 0,1;X F C72,5 PARA C H 0,05. SIENDO: X DE (G.I) INYECTADO EN LA MEZCLA; C ES EL CONTENIDO DE C DEL BAÑO METALICO EN EL MOMENTO CONSIDERADO; (G.I) GAS INERTEY (G.O) GAS OXIDANTE. EL (G.I) SE ELIE ENTRE N2, A, HE, NE Y KR; Y EL (G.O) TIENE UN CONTENIDO DE OXIGENO DISUELTO EN EL BAÑO METALICO H 200 PPM PARA UN CONTENIDO DE C ENTRE 0,03 Y 0,08% E H 300 PPM PARA UN CONENIDO DE C H 0,035% Y ES OXIGENO INDUSTRIALMENTE PURO.
ES541084A 1984-03-09 1985-03-08 Procedimiento de afinar una fundicion por el fondo Expired ES8606505A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8403626A FR2560891B1 (fr) 1984-03-09 1984-03-09 Procede d'affinage de la fonte

Publications (2)

Publication Number Publication Date
ES541084A0 ES541084A0 (es) 1986-04-16
ES8606505A1 true ES8606505A1 (es) 1986-04-16

Family

ID=9301846

Family Applications (1)

Application Number Title Priority Date Filing Date
ES541084A Expired ES8606505A1 (es) 1984-03-09 1985-03-08 Procedimiento de afinar una fundicion por el fondo

Country Status (8)

Country Link
US (1) US4568386A (es)
EP (1) EP0156706B1 (es)
JP (1) JPS60211007A (es)
AT (1) ATE29739T1 (es)
CA (1) CA1233646A (es)
DE (1) DE3560636D1 (es)
ES (1) ES8606505A1 (es)
FR (1) FR2560891B1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HRP970303B1 (en) * 1996-06-05 2002-06-30 Holderbank Financ Glarus Method for making pozzolans, synthetic blast-furnance slag, belite or alite clinkers, and pig-iron alloys, from oxidic slag and a device for implementing this method
US7363851B2 (en) * 2006-01-20 2008-04-29 Fisher Controls International, Llc Spacers for use with actuator casings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004847A (en) * 1957-12-23 1961-10-17 Bot Brassert Oxygen Technik Ag Refining of crude iron
BE610265A (es) * 1960-11-18
US3861888A (en) * 1973-06-28 1975-01-21 Union Carbide Corp Use of CO{HD 2 {B in argon-oxygen refining of molten metal
US3930843A (en) * 1974-08-30 1976-01-06 United States Steel Corporation Method for increasing metallic yield in bottom blown processes
DE2538159C2 (de) * 1974-08-30 1984-08-09 USS Engineers and Consultants, Inc., Pittsburgh, Pa. Verfahren zum Frischen von Roheisen
JPS5392319A (en) * 1977-01-25 1978-08-14 Nisshin Steel Co Ltd Method of making ultralowwcarbon stainless steel
FR2448572B1 (fr) * 1979-02-09 1985-10-18 Pennsylvania Engineering Corp Procede d'obtention d'acier a basse teneur en carbone au convertisseur oxygene-argon
US4260415A (en) * 1979-12-12 1981-04-07 Allegheny Ludlum Steel Corporation Decarburizing molten metal

Also Published As

Publication number Publication date
US4568386A (en) 1986-02-04
ATE29739T1 (de) 1987-10-15
JPS60211007A (ja) 1985-10-23
CA1233646A (fr) 1988-03-08
EP0156706B1 (fr) 1987-09-16
ES541084A0 (es) 1986-04-16
EP0156706A1 (fr) 1985-10-02
FR2560891B1 (fr) 1989-10-20
DE3560636D1 (en) 1987-10-22
FR2560891A1 (fr) 1985-09-13

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