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ES8202593A1 - Un metodo para prevenir el soplado tumultuoso durante el afino neumatico subsuperficial de un acero - Google Patents

Un metodo para prevenir el soplado tumultuoso durante el afino neumatico subsuperficial de un acero

Info

Publication number
ES8202593A1
ES8202593A1 ES498039A ES498039A ES8202593A1 ES 8202593 A1 ES8202593 A1 ES 8202593A1 ES 498039 A ES498039 A ES 498039A ES 498039 A ES498039 A ES 498039A ES 8202593 A1 ES8202593 A1 ES 8202593A1
Authority
ES
Spain
Prior art keywords
steel
pneumatic refining
during subsurface
subsurface pneumatic
slopping during
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
ES498039A
Other languages
English (en)
Other versions
ES498039A0 (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.)
Union Carbide Corp
Original Assignee
Union Carbide 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22317095&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8202593(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES498039A0 publication Critical patent/ES498039A0/es
Publication of ES8202593A1 publication Critical patent/ES8202593A1/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
    • 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
    • C21C5/28—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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • 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
    • C21C7/06—Deoxidising, e.g. killing
    • 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)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

METODO PARA PREVENIR EL SOPLADO TUMULTUOSO DURANTE EL AFINO NEUMATICO SUBSUPERFICIAL DE UN ACERO FUNDIDO QUE REQUIERE ADICIONES DE COMBUSTIBLE, AL MISMO TIEMPO QUE SE CONTROLA LA TEMPERATURA DE LA COLADA. CONSISTE EN AÑADIR UN MATERIAL COMBUSTIBLE OXIDABLE A LA COLADA EN UNA CANTIDAD SUFICIENTE PARA OBTENER LA TEMPERATURA DE SANGRADO DESEADA AL FINAL DEL PERIODO DE AFINO, EN EL MOMENTO EN QUE LA COLADA SE HA DESCARBURADO HASTA EL CONTENIDO DE CARBONO DE LA ESPECIFICACION O DESPUES QUE EL CONTENIDO DE CARBONO HA DESCENDIDO POR DEBAJO DE 0,50 %. DE APLICACION EN LA OBTENCION DE ACEROS AL CARBONO, ACEROS DE BAJA ALEACION Y ACEROS PARA HERRAMIENTAS.
ES498039A 1979-12-27 1980-12-22 Un metodo para prevenir el soplado tumultuoso durante el afino neumatico subsuperficial de un acero Expired ES8202593A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/107,535 US4278464A (en) 1979-12-27 1979-12-27 Method for preventing slopping during subsurface pneumatic refining of steel

Publications (2)

Publication Number Publication Date
ES498039A0 ES498039A0 (es) 1982-02-01
ES8202593A1 true ES8202593A1 (es) 1982-02-01

Family

ID=22317095

Family Applications (1)

Application Number Title Priority Date Filing Date
ES498039A Expired ES8202593A1 (es) 1979-12-27 1980-12-22 Un metodo para prevenir el soplado tumultuoso durante el afino neumatico subsuperficial de un acero

Country Status (15)

Country Link
US (1) US4278464A (es)
EP (1) EP0033780B2 (es)
JP (1) JPS6014812B2 (es)
KR (1) KR850000927B1 (es)
BR (1) BR8008338A (es)
CA (1) CA1157276A (es)
DE (1) DE3071177D1 (es)
DK (1) DK552980A (es)
ES (1) ES8202593A1 (es)
FI (1) FI67094C (es)
IN (1) IN155179B (es)
NO (1) NO153861C (es)
SU (1) SU1114343A3 (es)
YU (1) YU41453B (es)
ZA (1) ZA807929B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436553A (en) 1982-01-22 1984-03-13 Union Carbide Corporation Process to produce low hydrogen steel
US4451288A (en) * 1982-06-29 1984-05-29 Union Carbide Corporation Method for producing low hydrogen content in steels produced by subsurface pneumatic refining
US4477278A (en) * 1983-01-06 1984-10-16 Union Carbide Corporation Steelmaking process using calcium carbide as fuel
US4488903A (en) * 1984-03-14 1984-12-18 Union Carbide Corporation Rapid decarburization steelmaking process
US4551175A (en) * 1984-04-17 1985-11-05 Union Carbide Corporation Method for controlling slag chemistry in a refining vessel
US4761178A (en) * 1987-08-24 1988-08-02 Bethlehem Steel Corporation Process for heating molten steel contained in a ladle
IN172394B (es) * 1988-07-22 1993-07-17 Boest Alpine Stahl Donawitz Ge

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107995A (en) * 1961-04-06 1963-10-22 Katakura Sampei Refining material for iron and steel and method of producing same
US3702243A (en) * 1969-04-15 1972-11-07 Nat Steel Corp Method of preparing deoxidized steel
US3960546A (en) * 1974-05-22 1976-06-01 United States Steel Corporation Method for eliminating nose-skulls from steelmaking vessels
US4187102A (en) * 1978-08-24 1980-02-05 Union Carbide Corporation Method for controlling the temperature of the melt during pneumatic refining of steel
US4210442A (en) * 1979-02-07 1980-07-01 Union Carbide Corporation Argon in the basic oxygen process to control slopping

Also Published As

Publication number Publication date
EP0033780B1 (en) 1985-10-09
NO153861C (no) 1986-06-04
JPS6014812B2 (ja) 1985-04-16
EP0033780B2 (en) 1990-11-28
BR8008338A (pt) 1981-07-07
YU41453B (en) 1987-06-30
FI804007L (fi) 1981-06-28
ES498039A0 (es) 1982-02-01
KR850000927B1 (ko) 1985-06-28
CA1157276A (en) 1983-11-22
IN155179B (es) 1985-01-12
DE3071177D1 (en) 1985-11-14
YU325480A (en) 1983-02-28
KR830005374A (ko) 1983-08-13
JPS56127726A (en) 1981-10-06
US4278464A (en) 1981-07-14
NO153861B (no) 1986-02-24
DK552980A (da) 1981-06-28
NO803907L (no) 1981-06-29
EP0033780A1 (en) 1981-08-19
FI67094B (fi) 1984-09-28
ZA807929B (en) 1982-01-27
FI67094C (fi) 1985-01-10
SU1114343A3 (ru) 1984-09-15

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970606