FR2222438B1 - - Google Patents

Info

Publication number
FR2222438B1
FR2222438B1 FR7409952A FR7409952A FR2222438B1 FR 2222438 B1 FR2222438 B1 FR 2222438B1 FR 7409952 A FR7409952 A FR 7409952A FR 7409952 A FR7409952 A FR 7409952A FR 2222438 B1 FR2222438 B1 FR 2222438B1
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
FR7409952A
Other languages
French (fr)
Other versions
FR2222438A1 (en
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.)
Fried Krupp Huettenwerke AG
Original Assignee
Fried Krupp Huettenwerke AG
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 Fried Krupp Huettenwerke AG filed Critical Fried Krupp Huettenwerke AG
Publication of FR2222438A1 publication Critical patent/FR2222438A1/fr
Application granted granted Critical
Publication of FR2222438B1 publication Critical patent/FR2222438B1/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
    • C21C7/06—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
    • 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
    • C21C5/32—Blowing from above
    • 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
    • C21C7/10—Handling in a vacuum

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)
FR7409952A 1973-03-24 1974-03-22 Expired FR2222438B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2314843A DE2314843C2 (en) 1973-03-24 1973-03-24 Process for the production of vacuum treated steel for forging billets

Publications (2)

Publication Number Publication Date
FR2222438A1 FR2222438A1 (en) 1974-10-18
FR2222438B1 true FR2222438B1 (en) 1977-09-23

Family

ID=5875854

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7409952A Expired FR2222438B1 (en) 1973-03-24 1974-03-22

Country Status (7)

Country Link
US (1) US3907547A (en)
JP (1) JPS5222887B2 (en)
AT (1) AT342633B (en)
DE (1) DE2314843C2 (en)
FR (1) FR2222438B1 (en)
GB (1) GB1462247A (en)
IT (1) IT1011609B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187102A (en) * 1978-08-24 1980-02-05 Union Carbide Corporation Method for controlling the temperature of the melt during pneumatic refining of steel
US4436553A (en) * 1982-01-22 1984-03-13 Union Carbide Corporation Process to produce low hydrogen steel
DE3245098C2 (en) * 1982-12-07 1990-06-21 Klöckner-Werke AG, 4100 Duisburg Two-stage process for the production of high-quality steels with extremely low P and S contents, which are pre-melted in the converter
JPS6393487A (en) * 1986-10-08 1988-04-23 Yutaka Giken:Kk Manufacture of brake disk
JPS6393488A (en) * 1986-10-08 1988-04-23 Yutaka Giken:Kk Production of grooved brake disk
CZ297553B6 (en) * 2005-09-15 2007-02-07 Mittal Steel Ostrava A. S. Alloying method of low-carbon steel with nitrogen
CN109234488A (en) * 2018-09-06 2019-01-18 山西通才工贸有限公司 A kind of pneumatic steelmaking compensation method for thermal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE610265A (en) * 1960-11-18
FR1372730A (en) * 1963-09-04 1964-09-18 Gussstahlwerk Witten Ag Production process for alloy steels
US3336132A (en) * 1964-03-09 1967-08-15 Crucible Steel Co America Stainless steel manufacturing process and equipment
BE722605A (en) * 1967-10-27 1969-04-18

Also Published As

Publication number Publication date
JPS5222887B2 (en) 1977-06-21
US3907547A (en) 1975-09-23
IT1011609B (en) 1977-02-10
GB1462247A (en) 1977-01-19
FR2222438A1 (en) 1974-10-18
ATA237874A (en) 1977-08-15
DE2314843C2 (en) 1975-01-30
JPS49127810A (en) 1974-12-06
AT342633B (en) 1978-04-10
DE2314843B1 (en) 1974-06-06

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Legal Events

Date Code Title Description
ST Notification of lapse