BR8008338A - Processo para impedir o derrame durante a refinacao pneumatica de subsuperficie de uma massa fundida de aco - Google Patents

Processo para impedir o derrame durante a refinacao pneumatica de subsuperficie de uma massa fundida de aco

Info

Publication number
BR8008338A
BR8008338A BR8008338A BR8008338A BR8008338A BR 8008338 A BR8008338 A BR 8008338A BR 8008338 A BR8008338 A BR 8008338A BR 8008338 A BR8008338 A BR 8008338A BR 8008338 A BR8008338 A BR 8008338A
Authority
BR
Brazil
Prior art keywords
subsupperficence
melted steel
steel mass
spill during
prevent spill
Prior art date
Application number
BR8008338A
Other languages
English (en)
Inventor
S Mehlman
R Bury
R Andreini
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=BR8008338(A) "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 BR8008338A publication Critical patent/BR8008338A/pt

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)
BR8008338A 1979-12-27 1980-12-19 Processo para impedir o derrame durante a refinacao pneumatica de subsuperficie de uma massa fundida de aco BR8008338A (pt)

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 (1)

Publication Number Publication Date
BR8008338A true BR8008338A (pt) 1981-07-07

Family

ID=22317095

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8008338A BR8008338A (pt) 1979-12-27 1980-12-19 Processo para impedir o derrame durante a refinacao pneumatica de subsuperficie de uma massa fundida de aco

Country Status (15)

Country Link
US (1) US4278464A (pt)
EP (1) EP0033780B2 (pt)
JP (1) JPS6014812B2 (pt)
KR (1) KR850000927B1 (pt)
BR (1) BR8008338A (pt)
CA (1) CA1157276A (pt)
DE (1) DE3071177D1 (pt)
DK (1) DK552980A (pt)
ES (1) ES498039A0 (pt)
FI (1) FI67094C (pt)
IN (1) IN155179B (pt)
NO (1) NO153861C (pt)
SU (1) SU1114343A3 (pt)
YU (1) YU41453B (pt)
ZA (1) ZA807929B (pt)

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 (pt) * 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
EP0033780B2 (en) 1990-11-28
EP0033780B1 (en) 1985-10-09
ES8202593A1 (es) 1982-02-01
NO803907L (no) 1981-06-29
US4278464A (en) 1981-07-14
FI67094B (fi) 1984-09-28
DK552980A (da) 1981-06-28
CA1157276A (en) 1983-11-22
ES498039A0 (es) 1982-02-01
NO153861B (no) 1986-02-24
SU1114343A3 (ru) 1984-09-15
KR850000927B1 (ko) 1985-06-28
ZA807929B (en) 1982-01-27
DE3071177D1 (en) 1985-11-14
IN155179B (pt) 1985-01-12
FI804007L (fi) 1981-06-28
KR830005374A (ko) 1983-08-13
JPS56127726A (en) 1981-10-06
FI67094C (fi) 1985-01-10
EP0033780A1 (en) 1981-08-19
JPS6014812B2 (ja) 1985-04-16
YU325480A (en) 1983-02-28
NO153861C (no) 1986-06-04
YU41453B (en) 1987-06-30

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19951219