FI67094C - Foerfarande foer att foerhindra att slaggmetall vaeller upp vi pneumatisk under ytan skeende raffinering av staol - Google Patents

Foerfarande foer att foerhindra att slaggmetall vaeller upp vi pneumatisk under ytan skeende raffinering av staol Download PDF

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Publication number
FI67094C
FI67094C FI804007A FI804007A FI67094C FI 67094 C FI67094 C FI 67094C FI 804007 A FI804007 A FI 804007A FI 804007 A FI804007 A FI 804007A FI 67094 C FI67094 C FI 67094C
Authority
FI
Finland
Prior art keywords
melt
temperature
refining
att
added
Prior art date
Application number
FI804007A
Other languages
English (en)
Finnish (fi)
Other versions
FI67094B (fi
FI804007L (fi
Inventor
Roland Paul Bury
Stewart Keeney Mehlman
Rockne James 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=FI67094(C) "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 FI804007L publication Critical patent/FI804007L/fi
Publication of FI67094B publication Critical patent/FI67094B/fi
Application granted granted Critical
Publication of FI67094C publication Critical patent/FI67094C/fi

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)
FI804007A 1979-12-27 1980-12-22 Foerfarande foer att foerhindra att slaggmetall vaeller upp vi pneumatisk under ytan skeende raffinering av staol FI67094C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10753579 1979-12-27
US06/107,535 US4278464A (en) 1979-12-27 1979-12-27 Method for preventing slopping during subsurface pneumatic refining of steel

Publications (3)

Publication Number Publication Date
FI804007L FI804007L (fi) 1981-06-28
FI67094B FI67094B (fi) 1984-09-28
FI67094C true FI67094C (fi) 1985-01-10

Family

ID=22317095

Family Applications (1)

Application Number Title Priority Date Filing Date
FI804007A FI67094C (fi) 1979-12-27 1980-12-22 Foerfarande foer att foerhindra att slaggmetall vaeller upp vi pneumatisk under ytan skeende raffinering av staol

Country Status (15)

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

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 (no) * 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 (no) 1985-01-12
BR8008338A (pt) 1981-07-07
FI804007L (fi) 1981-06-28
KR830005374A (ko) 1983-08-13
JPS56127726A (en) 1981-10-06
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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MM Patent lapsed
MM Patent lapsed

Owner name: UNION CARBIDE CORPORATION