[go: up one dir, main page]

ES8303534A1 - Un metodo de impedir el dano a una tobera sumergida - Google Patents

Un metodo de impedir el dano a una tobera sumergida

Info

Publication number
ES8303534A1
ES8303534A1 ES505740A ES505740A ES8303534A1 ES 8303534 A1 ES8303534 A1 ES 8303534A1 ES 505740 A ES505740 A ES 505740A ES 505740 A ES505740 A ES 505740A ES 8303534 A1 ES8303534 A1 ES 8303534A1
Authority
ES
Spain
Prior art keywords
gas
nozzle
molten metal
mixture
preventing damage
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
ES505740A
Other languages
English (en)
Other versions
ES505740A0 (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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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
Priority claimed from JP55133966A external-priority patent/JPS6027722B2/ja
Priority claimed from JP13396780A external-priority patent/JPS6050844B2/ja
Priority claimed from JP13396880A external-priority patent/JPS6027723B2/ja
Priority claimed from JP2516181A external-priority patent/JPS57140810A/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of ES505740A0 publication Critical patent/ES505740A0/es
Publication of ES8303534A1 publication Critical patent/ES8303534A1/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
    • C21C5/35—Blowing from above and 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

METODO PARA EVITAR EL DAÑADO DE UNA TOBERA SUMERGIDA USADA EN UN HORNO DE FABRICACION DE ACERO CON OXIGENO, EN UN PROCESO DE AFINO POR DESCARBURACION. COMPRENDE LAS SIGUIENTES ETAPAS: PRIMERA, SE FORMA UNA MEZCLA DE GAS-POLVO COMPUESTA POR UN MATERIAL EN PARTICULAS QUE EMITE GAS EN UNA CANTIDAD SUFICIENTE Y POR UN GAS PORTADOR DISTINTO DEL OXIGENO; SEGUNDA, SE INSUFLA LA MEZCLA DE GAS-POLVO EN UN BAÑO DE METAL FUNDIDO A TRAVES DE LA TOBERA SUMERGIDA, AL OBJETO DE FORMAR UNA CAPA DE DICHA MEZCLA SOBRE EL BORDE PERIFERICO INTERNO DE LA MENCIONADA TOBERA; Y POR ULTIMO, SE ENFRIA EL METAL FUNDIDO EN TORNO AL EXTREMO DE DICHA TOBERA SUMERGIDA MEDIANTE LA ABSORCION DE CALOR, OCASIONADO POR LA REACCION ENDOTERMICA DE DESCOMPOSICION DEL MATERIAL EN PARTICULAS, AL TIEMPO QUE ES AGITADO EL BAÑO DE METAL FUNDIDO POR EL CHORRO DE GAS DESPRENDIDO.
ES505740A 1980-09-26 1981-09-24 Un metodo de impedir el dano a una tobera sumergida Expired ES8303534A1 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP55133966A JPS6027722B2 (ja) 1980-09-26 1980-09-26 溶融鉄へのガス吹き込み法
JP13396780A JPS6050844B2 (ja) 1980-09-26 1980-09-26 溶融鉄中への酸素吹込み羽口の保護方法
JP13396880A JPS6027723B2 (ja) 1980-09-26 1980-09-26 溶融鉄中への酸素吹込み羽口の保護方法
JP2516181A JPS57140810A (en) 1981-02-23 1981-02-23 Refining method for steel

Publications (2)

Publication Number Publication Date
ES505740A0 ES505740A0 (es) 1983-02-01
ES8303534A1 true ES8303534A1 (es) 1983-02-01

Family

ID=27458262

Family Applications (1)

Application Number Title Priority Date Filing Date
ES505740A Expired ES8303534A1 (es) 1980-09-26 1981-09-24 Un metodo de impedir el dano a una tobera sumergida

Country Status (7)

Country Link
US (1) US4388113A (es)
EP (1) EP0049148B1 (es)
AU (1) AU531023B2 (es)
BR (1) BR8106166A (es)
CA (1) CA1170460A (es)
DE (1) DE3176581D1 (es)
ES (1) ES8303534A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA966811B (en) * 1995-08-18 1998-02-12 Colgate Palmolive Co Cosmetic gel composition having reduced skin irritation.
CN111455127B (zh) * 2020-05-23 2022-02-08 苏州大学 一种维护底喷粉转炉蘑菇头的吹炼控制方法
CN111500815B (zh) * 2020-05-28 2021-06-11 北京科技大学 一种底吹O2-CO2-CaO转炉炼钢过程动态控制方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979395A (en) * 1957-01-22 1961-04-11 Kosmider Johannes Method of preparing preliminary metal or steel pig iron containing phosphorus
US2950186A (en) * 1957-03-02 1960-08-23 Siderurgie Fse Inst Rech Method for top blowing pulverulent burnt lime and oxygen into cast iron for refining same
FR1243414A (fr) * 1959-02-27 1960-10-14 Air Liquide Procédé d'affinage des fontes phosphoreuses par l'oxygène concentré
US2991173A (en) * 1959-02-27 1961-07-04 Siderurgie Fse Inst Rech Metal refining method and apparatus
LU57833A1 (es) * 1969-01-23 1970-07-29
LU58309A1 (es) * 1969-02-27 1969-07-15
BE748041A (fr) * 1970-03-26 1970-09-28 Centre Rech Metallurgique Perfectionnements aux procedes d'affinage,
SE395911B (sv) * 1974-04-16 1977-08-29 Uddeholms Ab Behandling av metallsmelta i keramiskt infordrat reaktionskerl
DE2740842A1 (de) * 1977-09-10 1979-03-22 Ernst Peter Prof Dipl I Franke Frischmittel bei bodenblasenden stahlerzeugungsverfahren
BE880526A (fr) * 1979-12-10 1980-06-10 Bristol Myers Company Ct De Re Sels d'argent d'acide phosphanilique, leur procede de production et composition antibacterienne les contenant.

Also Published As

Publication number Publication date
DE3176581D1 (en) 1988-02-04
ES505740A0 (es) 1983-02-01
EP0049148A1 (en) 1982-04-07
AU531023B2 (en) 1983-08-04
EP0049148B1 (en) 1987-12-23
US4388113A (en) 1983-06-14
BR8106166A (pt) 1982-06-15
CA1170460A (en) 1984-07-10
AU7568181A (en) 1982-04-01

Similar Documents

Publication Publication Date Title
IT962662B (it) Metodo per iniettare un agente gassoso di reazione in un bagno di metallo fuso
IT980292B (it) Procedimento per la affinazione di metallo ferroso fuso mediante iniezione di ossigeno e di un gas monoatomico
GB904485A (en) Differentially coated galvanized sheet or strip
ES8303534A1 (es) Un metodo de impedir el dano a una tobera sumergida
ES455324A1 (es) Un procedimiento para el tratamiento, sin sinterizacion pre-via, de residuos de plomo.
IT8123285A0 (it) Procedimento per la desolforazione nella produzione di gas in un reattore a bagno di ferro fuso.
ES480505A1 (es) Metodo para la introduccion de sustancias de desoxidacion-desulfuracion en banos metalicos sin utilizar un vehiculo ga- seoso.
JPS5662662A (en) Molten steel heat insulating method of less carburization
JPS5460212A (en) Steel making by pure oxygen bottom blast converter
ES397133A1 (es) Un dispositivo de lanza refrigerada por fluido para aplica-ciones metalugircas y de ingenieria quimica.
GB737005A (en) Improvements in blowing methods for metal baths, particularly pig iron baths
FR2167520A1 (en) Rapidly decarburising ferro alloys - avoiding oxidation of the main alloying elements
AR246986A1 (es) Un metodo y un aparato para la reduccion directa de hierro.
JPS5343019A (en) Refining method for steel with reduced slag formation
JPS5237510A (en) Dephosphorization method of molten cast iron
JPS5261122A (en) Manufacturing method of high tension steel having low temperature tena city
JPS5314105A (en) Executing method for construction of blast furnace trough
JPS5626733A (en) Manufacture of high accuracy quartz pipe
IT969403B (it) Lancia per soffiare gas in parti colare per trattare con ossigeno bagni di metallo fuso
FR2007341A1 (en) Protection of refractory lining by floating annular ring
GB745205A (en) Process for the manufacture of steel
JPS54100942A (en) Metal surface treatment
GB976158A (en) The control of steel manufacturing processes
JPS51151211A (en) Vacuum ladle decarburization apparatus blowing oxidizing gas directly into molten steel at reduced pressur
JPS5261109A (en) Converter operation method