FR2401225A1 - Procede de fabrication d'aciers inoxydables a tres faibles teneurs en carbone - Google Patents

Procede de fabrication d'aciers inoxydables a tres faibles teneurs en carbone

Info

Publication number
FR2401225A1
FR2401225A1 FR7824408A FR7824408A FR2401225A1 FR 2401225 A1 FR2401225 A1 FR 2401225A1 FR 7824408 A FR7824408 A FR 7824408A FR 7824408 A FR7824408 A FR 7824408A FR 2401225 A1 FR2401225 A1 FR 2401225A1
Authority
FR
France
Prior art keywords
stainless steels
manufacturing process
low carbon
carbon contents
contents
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.)
Granted
Application number
FR7824408A
Other languages
English (en)
Other versions
FR2401225B1 (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.)
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 FR2401225A1 publication Critical patent/FR2401225A1/fr
Application granted granted Critical
Publication of FR2401225B1 publication Critical patent/FR2401225B1/fr
Granted 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
    • 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
    • C21C5/35—Blowing from above and 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
    • C21C5/005—Manufacture of stainless steel

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)
  • Treatment Of Steel In Its Molten State (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Le procédé selon l'invention se distingue en ce qu'on utilise des tuyères de soufflage de section transversale variable. Les aciers inoxydables ainsi obtenus possèdent une résistance améliorée à la corrosion intercristalline.
FR7824408A 1977-08-22 1978-08-22 Procede de fabrication d'aciers inoxydables a tres faibles teneurs en carbone Granted FR2401225A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2737832A DE2737832C3 (de) 1977-08-22 1977-08-22 Verwendung von im Querschnitt veränderlichen Blasdüsen zur Herstellung von rostfreien Stählen

Publications (2)

Publication Number Publication Date
FR2401225A1 true FR2401225A1 (fr) 1979-03-23
FR2401225B1 FR2401225B1 (fr) 1982-12-03

Family

ID=6017019

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824408A Granted FR2401225A1 (fr) 1977-08-22 1978-08-22 Procede de fabrication d'aciers inoxydables a tres faibles teneurs en carbone

Country Status (10)

Country Link
US (1) US4178173A (fr)
JP (1) JPS5443113A (fr)
AR (1) AR216170A1 (fr)
AT (1) AT370774B (fr)
DE (1) DE2737832C3 (fr)
ES (1) ES472730A1 (fr)
FR (1) FR2401225A1 (fr)
GB (1) GB2002818B (fr)
IT (1) IT1098098B (fr)
SE (1) SE443154B (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334921A (en) * 1979-04-16 1982-06-15 Nippon Steel Corporation Converter steelmaking process
US4280838A (en) * 1979-05-24 1981-07-28 Sumitomo Metal Industries, Ltd. Production of carbon steel and low-alloy steel with bottom blowing basic oxygen furnace
JPS6013402B2 (ja) * 1979-05-24 1985-04-06 住友金属工業株式会社 ガス循環システムを有する鋼の精錬装置
JPS5921367B2 (ja) * 1979-05-29 1984-05-19 大同特殊鋼株式会社 含クロム鋼の精錬方法
JPS5623215A (en) * 1979-08-02 1981-03-05 Nippon Kokan Kk <Nkk> Converter steel making method
DE2931957A1 (de) * 1979-08-07 1981-02-12 Maximilianshuette Eisenwerk Verfahren zur herstellung von stahl mit niedrigem wasserstoffgehalt in einem sauerstoffdurchblaskonverter
ATE5202T1 (de) * 1979-12-11 1983-11-15 Eisenwerk-Gesellschaft Maximilianshuette Mbh Stahlerzeugungsverfahren.
DD154026A5 (de) * 1979-12-28 1982-02-17 Creusot Loire Mischblasverfahren zur raffination der metalle im konverter
US4302244A (en) * 1980-07-18 1981-11-24 Pennsylvania Engineering Corporation Steel conversion method
US4358314A (en) * 1980-09-03 1982-11-09 British Steel Corporation Metal refining process
DE3169921D1 (de) * 1980-12-20 1985-05-15 Kobe Steel Ltd Tuyere
JPS57145917A (en) * 1981-03-03 1982-09-09 Sumitomo Metal Ind Ltd Refining method for high chromium steel
AU8474782A (en) * 1981-06-19 1982-12-23 British Steel Corp. Refining of steel from pig iron
US4470582A (en) * 1982-02-15 1984-09-11 Zirconal Processes Limited Introduction of substances into molten metal
US4397685A (en) * 1982-03-26 1983-08-09 Union Carbide Corporation Production of ultra low carbon steel by the basic oxygen process
US4402739A (en) * 1982-07-13 1983-09-06 Kawasaki Steel Corporation Method of operation of a top-and-bottom blown converter
US4557758A (en) * 1982-12-16 1985-12-10 Mizin Vladimir G Steelmaking process
JPS59150009A (ja) * 1983-02-12 1984-08-28 Daido Steel Co Ltd 鋼の精錬方法
US4472195A (en) * 1983-08-15 1984-09-18 Olin Corporation Process for decarburizing alloy melts
JPS6050108A (ja) * 1983-08-29 1985-03-19 Nippon Steel Corp 複合精錬炉による極低炭素鋼溶製法
US4462825A (en) * 1983-09-01 1984-07-31 United States Steel Corporation Method for increasing the scrap melting capability of metal refining processes
JPS6063307A (ja) * 1983-09-14 1985-04-11 Kawasaki Steel Corp 極低炭素鋼の転炉製鋼法
US4783219A (en) * 1985-11-13 1988-11-08 Nippon Kokan Kabushiki Kaisha Method for melting and reducing chrome ore
JPS62167811A (ja) * 1986-01-20 1987-07-24 Nippon Kokan Kk <Nkk> 溶融還元製鋼法
US4711430A (en) * 1986-04-01 1987-12-08 Union Carbide Corporation Side-injected metal refining vessel and method
US4647019A (en) * 1986-04-01 1987-03-03 Union Carbide Corporation Very small refining vessel
US4708738A (en) * 1986-04-01 1987-11-24 Union Carbide Corporation Method for refining very small heats of molten metal
AU604974B2 (en) * 1987-09-10 1991-01-03 Nkk Corporation Process for producing molten stainless steel
JPH01215912A (ja) * 1988-02-24 1989-08-29 Kawasaki Steel Corp 含クロム溶鉄の製造方法
US5328658A (en) * 1993-08-04 1994-07-12 Daido Tokushuko Kabushiki Kaisha Method of refining chromium-containing steel
CN112212700B (zh) * 2020-09-03 2021-09-14 钢铁研究总院 一种环缝式供气元件和供气方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2113684A5 (fr) * 1970-11-09 1972-06-23 Armco Steel Corp
FR2233401A1 (fr) * 1973-06-18 1975-01-10 Allegheny Ludlum Ind Inc
FR2273873A1 (fr) * 1974-06-07 1976-01-02 British Steel Corp Procede et installation pour produire un acier allie

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE610265A (fr) * 1960-11-18
GB1253581A (en) * 1968-02-24 1971-11-17 Maximilianshuette Eisenwerk Improvements in processes and apparatus for making steel
US4001009A (en) * 1969-04-03 1977-01-04 Hannsgeorg Bauer Process for the manufacture of steels with a high chromium content
AT337736B (de) * 1973-02-12 1977-07-11 Voest Ag Verfahren zum frischen von roheisen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2113684A5 (fr) * 1970-11-09 1972-06-23 Armco Steel Corp
FR2233401A1 (fr) * 1973-06-18 1975-01-10 Allegheny Ludlum Ind Inc
FR2273873A1 (fr) * 1974-06-07 1976-01-02 British Steel Corp Procede et installation pour produire un acier allie

Also Published As

Publication number Publication date
SE443154B (sv) 1986-02-17
IT1098098B (it) 1985-08-31
FR2401225B1 (fr) 1982-12-03
ATA606178A (de) 1982-09-15
GB2002818A (en) 1979-02-28
JPS5443113A (en) 1979-04-05
ES472730A1 (es) 1979-02-16
DE2737832A1 (de) 1979-03-01
AT370774B (de) 1983-05-10
GB2002818B (en) 1982-03-03
JPS568084B2 (fr) 1981-02-21
DE2737832C3 (de) 1980-05-22
AR216170A1 (es) 1979-11-30
DE2737832B2 (de) 1979-09-13
SE7808526L (sv) 1979-02-23
US4178173A (en) 1979-12-11
IT7826928A0 (it) 1978-08-22

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Legal Events

Date Code Title Description
ST Notification of lapse