DE3470565D1 - Process and device for the production of steel having an elevated degree of purity and a reduced gas content - Google Patents

Process and device for the production of steel having an elevated degree of purity and a reduced gas content

Info

Publication number
DE3470565D1
DE3470565D1 DE8484110166T DE3470565T DE3470565D1 DE 3470565 D1 DE3470565 D1 DE 3470565D1 DE 8484110166 T DE8484110166 T DE 8484110166T DE 3470565 T DE3470565 T DE 3470565T DE 3470565 D1 DE3470565 D1 DE 3470565D1
Authority
DE
Germany
Prior art keywords
steel
gas content
purity
production
reduced gas
Prior art date
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
DE8484110166T
Other languages
English (en)
Inventor
Ulrich Dipl Ing Glasmeyer
Horst Dipl Ing Willaschek
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.)
MAN Gutehoffnungshutte GmbH
Original Assignee
MAN Gutehoffnungshutte GmbH
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=25813671&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3470565(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Gutehoffnungshutte GmbH filed Critical MAN Gutehoffnungshutte GmbH
Priority to DE8484110166T priority Critical patent/DE3470565D1/de
Application granted granted Critical
Publication of DE3470565D1 publication Critical patent/DE3470565D1/de
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
    • C21C5/005—Manufacture 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
    • 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
    • C21C7/072—Treatment with gases
DE8484110166T 1983-09-02 1984-08-25 Process and device for the production of steel having an elevated degree of purity and a reduced gas content Expired DE3470565D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8484110166T DE3470565D1 (en) 1983-09-02 1984-08-25 Process and device for the production of steel having an elevated degree of purity and a reduced gas content

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3331710 1983-09-02
DE3347718A DE3347718C2 (de) 1983-09-02 1983-12-31 Verfahren zur Herstellung von Stählen mit hohem Reinheitsgrad und geringen Gasgehalten in Stahlwerken und Stahlgießereien
DE8484110166T DE3470565D1 (en) 1983-09-02 1984-08-25 Process and device for the production of steel having an elevated degree of purity and a reduced gas content

Publications (1)

Publication Number Publication Date
DE3470565D1 true DE3470565D1 (en) 1988-05-26

Family

ID=25813671

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3347718A Expired DE3347718C2 (de) 1983-09-02 1983-12-31 Verfahren zur Herstellung von Stählen mit hohem Reinheitsgrad und geringen Gasgehalten in Stahlwerken und Stahlgießereien
DE8484110166T Expired DE3470565D1 (en) 1983-09-02 1984-08-25 Process and device for the production of steel having an elevated degree of purity and a reduced gas content

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3347718A Expired DE3347718C2 (de) 1983-09-02 1983-12-31 Verfahren zur Herstellung von Stählen mit hohem Reinheitsgrad und geringen Gasgehalten in Stahlwerken und Stahlgießereien

Country Status (4)

Country Link
US (1) US4544405A (de)
EP (1) EP0140001B1 (de)
CA (1) CA1231533A (de)
DE (2) DE3347718C2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19728102C2 (de) * 1997-07-02 1999-08-05 Schloemann Siemag Ag Verfahren und Vorrichtung zur Herstellung von Stählen mit hohem Cr-Gehalt und/oder Ferrolegierungen
GB2406580B (en) * 2000-06-05 2005-09-07 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same
FR2809745B1 (fr) * 2000-06-05 2007-02-02 Sanyo Special Steel Co Ltd Acier haute proprete et son procede de production
GB2410253B (en) * 2000-06-05 2005-09-14 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US16082A (en) * 1856-11-11 Improvement in the manufacture of iron and steel
GB1206062A (en) * 1967-10-18 1970-09-23 Nippon Kokan Kk Deoxidation method
US3598383A (en) * 1969-01-14 1971-08-10 William H Moore Method and apparatus for incorporating additives in a melt
LU62545A1 (de) * 1971-02-04 1972-12-05
US3754894A (en) * 1972-04-20 1973-08-28 Joslyn Mfg & Supply Co Nitrogen control in argon oxygen refining of molten metal
DE2525355A1 (de) * 1974-06-07 1975-12-18 British Steel Corp Verfahren und vorrichtung zum frischen von eisen
DE2527156B2 (de) * 1975-06-18 1980-09-04 Thyssen Niederrhein Ag Huetten- Und Walzwerke, 4200 Oberhausen Verfahren zur Vorbehandlung einer Stahlschmelze beim Stranggießen
ES468347A1 (es) * 1977-03-31 1978-12-01 Union Carbide Corp Un procedimiento para la obtencion de piezas coladas de me- tal.
LU81190A1 (fr) * 1979-04-26 1980-12-16 Centre Rech Metallurgique Perfectionnements aux procedes de desoxydation et de mise a nuance des aciers
DE7928208U1 (de) * 1979-10-04 1980-01-03 Thyssen Ag Vorm. August Thyssen Huette, 4100 Duisburg Vorrichtung zur durchfuehrung metallurgischer reaktionen in einer pfanne
FR2506332A1 (fr) * 1981-05-20 1982-11-26 Usinor Dispositif d'alimentation et de distribution de gaz de brassage pour des unites d'injection situees dans le fond d'un convertisseur de fonte en acier a l'oxygene

Also Published As

Publication number Publication date
US4544405A (en) 1985-10-01
DE3347718A1 (de) 1985-03-28
DE3347718C2 (de) 1986-05-28
CA1231533A (en) 1988-01-19
EP0140001A1 (de) 1985-05-08
EP0140001B1 (de) 1988-04-20

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: MAN GUTEHOFFNUNGSHUETTE AG, 4200 OBERHAUSEN, DE GL

8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee