FR2252414B1 - - Google Patents

Info

Publication number
FR2252414B1
FR2252414B1 FR7430431A FR7430431A FR2252414B1 FR 2252414 B1 FR2252414 B1 FR 2252414B1 FR 7430431 A FR7430431 A FR 7430431A FR 7430431 A FR7430431 A FR 7430431A FR 2252414 B1 FR2252414 B1 FR 2252414B1
Authority
FR
France
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
FR7430431A
Other versions
FR2252414A1 (fr
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.)
Uddeholms AB
Original Assignee
Uddeholms AB
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 SE7316039A external-priority patent/SE397100B/xx
Priority claimed from SE7404473A external-priority patent/SE397202B/xx
Priority claimed from SE7404474A external-priority patent/SE401522B/xx
Priority claimed from SE7406840A external-priority patent/SE397203B/xx
Priority claimed from SE7407845A external-priority patent/SE401199B/xx
Application filed by Uddeholms AB filed Critical Uddeholms AB
Publication of FR2252414A1 publication Critical patent/FR2252414A1/fr
Application granted granted Critical
Publication of FR2252414B1 publication Critical patent/FR2252414B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods

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)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture Of Iron (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
FR7430431A 1973-11-28 1974-09-09 Expired FR2252414B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE7316039A SE397100B (sv) 1973-11-28 1973-11-28 Sett for reduktion av metalloxid enligt patentet 7306894-2
SE7404473A SE397202B (sv) 1974-04-03 1974-04-03 Sett for reduktion av metalloxid enligt patentet 7306894-2
SE7404474A SE401522B (sv) 1974-04-03 1974-04-03 Sett vid genomforande av en metallurgisk process enligt patent 7316039-2
SE7406840A SE397203B (sv) 1974-05-22 1974-05-22 Sett for reduktion av metalloxid enligt patentet 7306894-2
SE7407845A SE401199B (sv) 1974-06-14 1974-06-14 Sett for framstellning av rostfritt stal enligt patentet 7316039-2

Publications (2)

Publication Number Publication Date
FR2252414A1 FR2252414A1 (fr) 1975-06-20
FR2252414B1 true FR2252414B1 (fr) 1980-07-04

Family

ID=27532737

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430431A Expired FR2252414B1 (fr) 1973-11-28 1974-09-09

Country Status (10)

Country Link
US (1) US3942978A (fr)
JP (1) JPS5530041B2 (fr)
CA (1) CA1040863A (fr)
DE (1) DE2443177C2 (fr)
FI (1) FI66203C (fr)
FR (1) FR2252414B1 (fr)
IN (1) IN143021B (fr)
IT (1) IT1025039B (fr)
LU (1) LU70867A1 (fr)
NO (1) NO743247L (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507961C3 (de) * 1975-02-25 1978-07-20 Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg Verfahren zum Herstellen von Stahl aus Roheisen
SE423721B (sv) * 1976-03-17 1982-05-24 Stora Kopparbergs Bergslags Ab Sett for framstellning av rastal genom direktreduktion
JPS5456015A (en) * 1977-10-12 1979-05-04 Nippon Steel Corp Manufacture of molten iron in converter
US4190435A (en) * 1978-10-25 1980-02-26 Uddeholms Aktiebolag Process for the production of ferro alloys
US4708738A (en) * 1986-04-01 1987-11-24 Union Carbide Corporation Method for refining very small heats of molten metal
US5055253A (en) * 1990-07-17 1991-10-08 Nelson & Associates Research, Inc. Metallic composition
US5182079A (en) * 1990-07-17 1993-01-26 Nelson & Associates Research, Inc. Metallic composition and processes for use of the same
US5505798A (en) * 1994-06-22 1996-04-09 Jerry L. Nelson Method of producing a tool or die steel
US20060228294A1 (en) * 2005-04-12 2006-10-12 Davis William H Process and apparatus using a molten metal bath
SE537146C2 (sv) * 2012-05-08 2015-02-17 Uvån Holding Ab Metod för selektiv oxidation av en eller flera metaller frånen järnsmälta
CN104498656B (zh) * 2014-12-15 2016-10-05 钢铁研究总院 直接利用粉矿熔融还原炼铁的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502259A (en) * 1946-12-12 1950-03-28 Air Reduction Method of eliminating carbon from and controlling the temperature of molten steel
US2593505A (en) * 1948-04-10 1952-04-22 Hydrocarbon Research Inc Metal refining process
DE1408183A1 (de) * 1957-11-30 1968-10-03 Huettenwerk Oberhausen Ag Verfahren zum Frischen von Roheisen
GB1148602A (en) * 1966-09-26 1969-04-16 Steel Co Of Wales Ltd Improvements in and relating to the treatment of metals

Also Published As

Publication number Publication date
JPS5085511A (fr) 1975-07-10
DE2443177A1 (de) 1975-06-12
NO743247L (fr) 1975-06-23
US3942978A (en) 1976-03-09
DE2443177C2 (de) 1984-12-06
LU70867A1 (fr) 1975-01-02
IN143021B (fr) 1977-09-24
IT1025039B (it) 1978-08-10
JPS5530041B2 (fr) 1980-08-08
FI66203C (fi) 1984-09-10
FI262374A (fr) 1975-05-29
CA1040863A (fr) 1978-10-24
FI66203B (fi) 1984-05-31
AU7292974A (en) 1976-03-11
FR2252414A1 (fr) 1975-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse