AT341558B - Vacuum-frischverfahren - Google Patents

Vacuum-frischverfahren

Info

Publication number
AT341558B
AT341558B AT849974A AT849974A AT341558B AT 341558 B AT341558 B AT 341558B AT 849974 A AT849974 A AT 849974A AT 849974 A AT849974 A AT 849974A AT 341558 B AT341558 B AT 341558B
Authority
AT
Austria
Prior art keywords
freshing
vacuum
vacuum freshing
freshing process
Prior art date
Application number
AT849974A
Other languages
English (en)
Other versions
ATA849974A (de
Inventor
Takashi Fukui
Takami Ikeda
Shogo Matsunaga
Hiroyuki Takashima
Yoshio Kotani
Kazuo Ishihara
Takeyoshi Sakane
Original Assignee
Sumitomo Metal Ind
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 JP11915373A external-priority patent/JPS5324008B2/ja
Priority claimed from JP14107473A external-priority patent/JPS5319443B2/ja
Priority claimed from JP1203774A external-priority patent/JPS5546445B2/ja
Application filed by Sumitomo Metal Ind filed Critical Sumitomo Metal Ind
Publication of ATA849974A publication Critical patent/ATA849974A/de
Application granted granted Critical
Publication of AT341558B publication Critical patent/AT341558B/de

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
    • C21C7/10—Handling in a vacuum
    • 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
    • C21C5/4606—Lances or injectors
AT849974A 1973-10-22 1974-10-22 Vacuum-frischverfahren AT341558B (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11915373A JPS5324008B2 (de) 1973-10-22 1973-10-22
JP14107473A JPS5319443B2 (de) 1973-12-14 1973-12-14
JP1203774A JPS5546445B2 (de) 1974-01-28 1974-01-28

Publications (2)

Publication Number Publication Date
ATA849974A ATA849974A (de) 1977-06-15
AT341558B true AT341558B (de) 1978-02-10

Family

ID=27279681

Family Applications (1)

Application Number Title Priority Date Filing Date
AT849974A AT341558B (de) 1973-10-22 1974-10-22 Vacuum-frischverfahren

Country Status (5)

Country Link
AT (1) AT341558B (de)
CA (1) CA1030354A (de)
DE (1) DE2450196C3 (de)
GB (1) GB1488686A (de)
SE (1) SE425256B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4426224A (en) * 1981-12-25 1984-01-17 Sumitomo Kinzoku Kogyo Kabushiki Gaisha Lance for powder top-blow refining and process for decarburizing and refining steel by using the lance
SE447675B (sv) * 1982-10-15 1986-12-01 Ifm Dev Ab Dysa for injektionslans
GB8417692D0 (en) * 1984-07-11 1984-08-15 Tolltreck Ltd Metallurgical apparatus
DE4221266C1 (de) * 1992-06-26 1993-10-21 Mannesmann Ag Verfahren und Vorrichtung zum Aufblasen von Sauerstoff auf Metallschmelzen
DE4442362C1 (de) * 1994-11-18 1996-04-18 Mannesmann Ag Verfahren und Vorrichtung zum Behandeln von einer in einem metallurgischen Gefäß befindlichen Metallschmelze
KR100270113B1 (ko) * 1996-10-08 2000-10-16 이구택 극저탄소강의 용강 제조장치

Also Published As

Publication number Publication date
GB1488686A (en) 1977-10-12
SE7413219L (de) 1975-04-23
SE425256B (sv) 1982-09-13
DE2450196C3 (de) 1978-06-22
CA1030354A (en) 1978-05-02
ATA849974A (de) 1977-06-15
DE2450196B2 (de) 1977-11-03
DE2450196A1 (de) 1975-04-30

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Legal Events

Date Code Title Description
ELA Expired due to lapse of time