FR2232600B1 - - Google Patents

Info

Publication number
FR2232600B1
FR2232600B1 FR7409282A FR7409282A FR2232600B1 FR 2232600 B1 FR2232600 B1 FR 2232600B1 FR 7409282 A FR7409282 A FR 7409282A FR 7409282 A FR7409282 A FR 7409282A FR 2232600 B1 FR2232600 B1 FR 2232600B1
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
FR7409282A
Other languages
French (fr)
Other versions
FR2232600A1 (ja
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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
Application filed by Koppers Co Inc filed Critical Koppers Co Inc
Publication of FR2232600A1 publication Critical patent/FR2232600A1/fr
Application granted granted Critical
Publication of FR2232600B1 publication Critical patent/FR2232600B1/fr
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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/48—Bottoms or tuyéres of converters

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)
FR7409282A 1973-06-07 1974-03-19 Expired FR2232600B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US367839A US3891429A (en) 1973-06-07 1973-06-07 Method for selective decarburization of alloy steels

Publications (2)

Publication Number Publication Date
FR2232600A1 FR2232600A1 (ja) 1975-01-03
FR2232600B1 true FR2232600B1 (ja) 1976-12-17

Family

ID=23448848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7409282A Expired FR2232600B1 (ja) 1973-06-07 1974-03-19

Country Status (5)

Country Link
US (1) US3891429A (ja)
JP (1) JPS5021918A (ja)
CA (1) CA1005234A (ja)
DE (1) DE2405737B2 (ja)
FR (1) FR2232600B1 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE825352A (fr) * 1974-02-11 1975-08-11 Procede de fabrication de l'acier a l'oxygene souffle par le bas
FR2267376B1 (ja) * 1974-04-11 1977-06-24 Creusot Loire
US4138098A (en) * 1975-08-14 1979-02-06 Creusot-Loire Method of blowing smelting shaft furnaces and tuyeres used for said blowing
JPS5346887A (en) * 1976-10-12 1978-04-26 Okura Industrial Co Ltd Method of shrinkage wrapping
US4185683A (en) * 1978-01-18 1980-01-29 Artamonov Viktor L Electroslag remelting mould
FR2448572B1 (fr) * 1979-02-09 1985-10-18 Pennsylvania Engineering Corp Procede d'obtention d'acier a basse teneur en carbone au convertisseur oxygene-argon
JPS5664968A (en) * 1979-11-01 1981-06-02 Akira Hirai Cellophane packed insecticidal tablet
JPS5665914A (en) * 1979-11-05 1981-06-04 Mitsubishi Heavy Ind Ltd Production of low carbon stainless steel
US4531973A (en) * 1980-04-08 1985-07-30 Nixon Ivor G Metallurgical processes
US4360190A (en) * 1981-03-16 1982-11-23 Junichi Ato Porous nozzle for molten metal vessel
JPS5858218A (ja) * 1981-10-02 1983-04-06 Kawasaki Steel Corp 転炉の底吹き羽口
US4615730A (en) * 1985-04-30 1986-10-07 Allegheny Ludlum Steel Corporation Method for refining molten metal bath to control nitrogen
US4746361A (en) * 1987-04-03 1988-05-24 Inland Steel Company Controlling dissolved oxygen content in molten steel
US5431709A (en) * 1993-09-21 1995-07-11 Gas Research Institute Accretion controlling tuyere

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076703A (en) * 1958-04-28 1963-02-05 Arbed Manufacture of steel
US2986458A (en) * 1958-09-05 1961-05-30 Strategic Materials Corp Production of iron from ferrous slag materials
NL296346A (ja) * 1962-08-07
GB1253581A (en) * 1968-02-24 1971-11-17 Maximilianshuette Eisenwerk Improvements in processes and apparatus for making steel
DE1916945C3 (de) * 1969-04-02 1980-04-17 Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg Anwendung des Mantelgas-Verfahrens zum Frischen von Roheisen zu Stahl
BE752893A (fr) * 1969-07-08 1970-12-16 Forges De La Loire St Chamond Procede et dispositif de refroidissement d'une tuyere de convertisseur d'affinage
US3725041A (en) * 1970-09-25 1973-04-03 Allegheny Ludlum Ind Inc Deoxidizing metal

Also Published As

Publication number Publication date
CA1005234A (en) 1977-02-15
JPS5021918A (ja) 1975-03-08
FR2232600A1 (ja) 1975-01-03
DE2405737B2 (de) 1977-01-13
DE2405737A1 (de) 1974-12-19
US3891429A (en) 1975-06-24

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Legal Events

Date Code Title Description
ST Notification of lapse