DE3460903D1 - Process for the production of steels with high machinability - Google Patents

Process for the production of steels with high machinability

Info

Publication number
DE3460903D1
DE3460903D1 DE8484420046T DE3460903T DE3460903D1 DE 3460903 D1 DE3460903 D1 DE 3460903D1 DE 8484420046 T DE8484420046 T DE 8484420046T DE 3460903 T DE3460903 T DE 3460903T DE 3460903 D1 DE3460903 D1 DE 3460903D1
Authority
DE
Germany
Prior art keywords
steels
calcium
sulfur
production
carbide
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
DE8484420046T
Other languages
English (en)
Inventor
Andre Gueussier
Edmond Vachiery
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.)
Vallourec SA
Original Assignee
Vallourec SA
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=9287068&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3460903(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vallourec SA filed Critical Vallourec SA
Application granted granted Critical
Publication of DE3460903D1 publication Critical patent/DE3460903D1/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
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
  • Catalysts (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Glass Compositions (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Powder Metallurgy (AREA)
DE8484420046T 1983-03-15 1984-03-14 Process for the production of steels with high machinability Expired DE3460903D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8304611A FR2542761B1 (fr) 1983-03-15 1983-03-15 Procede de fabrication d'aciers a haute usinabilite

Publications (1)

Publication Number Publication Date
DE3460903D1 true DE3460903D1 (en) 1986-11-13

Family

ID=9287068

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484420046T Expired DE3460903D1 (en) 1983-03-15 1984-03-14 Process for the production of steels with high machinability

Country Status (10)

Country Link
US (1) US4531972A (de)
EP (1) EP0123632B2 (de)
JP (1) JPS59177347A (de)
AT (1) ATE22705T1 (de)
CA (1) CA1226737A (de)
DE (1) DE3460903D1 (de)
ES (1) ES530575A0 (de)
FR (1) FR2542761B1 (de)
MX (1) MX160762A (de)
ZA (1) ZA841899B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746361A (en) * 1987-04-03 1988-05-24 Inland Steel Company Controlling dissolved oxygen content in molten steel
DE3739156A1 (de) * 1987-11-19 1989-06-01 Sueddeutsche Kalkstickstoff Stickstoffhaltiges zusatzmittel fuer stahlschmelzen
DE3939936A1 (de) * 1989-12-02 1991-06-06 Messerschmitt Boelkow Blohm Steckverbindung zum elektrischen verbinden von leiterplatten
US5397379A (en) * 1993-09-22 1995-03-14 Oglebay Norton Company Process and additive for the ladle refining of steel
US6179895B1 (en) 1996-12-11 2001-01-30 Performix Technologies, Ltd. Basic tundish flux composition for steelmaking processes
US7682418B2 (en) * 2004-02-11 2010-03-23 Tata Steel Limited Cored wire injection process in steel melts
RU2465341C2 (ru) * 2011-01-20 2012-10-27 Открытое акционерное общество "Новолипецкий металлургический комбинат" Способ обработки низкоуглеродистой стали в ковше
RU2514125C1 (ru) * 2012-11-30 2014-04-27 Открытое акционерное общество "Магнитогорский металлургический комбинат" Способ раскисления низкоуглеродистой стали
RU2564373C1 (ru) * 2014-07-10 2015-09-27 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Способ производства трубной стали
RU2607877C2 (ru) * 2015-06-10 2017-01-20 Открытое акционерное общество "Волжский трубный завод" Способ внепечной обработки стали
RU2637194C1 (ru) * 2016-11-22 2017-11-30 Федеральное Государственное Унитарное Предприятие "Центральный научно-исследовательский институт черной металлургии им. И.П. Бардина" (ФГУП "ЦНИИчермет им. И.П. Бардина") Способ ковшовой обработки легированных сталей
RU2639080C1 (ru) * 2016-12-28 2017-12-19 Акционерное общество "Научно-производственное объединение "Центральный научно-исследовательский институт технологии машиностроения", АО "НПО "ЦНИИТМАШ" Способ производства стали
RU2708281C1 (ru) * 2018-09-28 2019-12-05 РЕЙЛ 1520 АйПи ЛТД Способ внепечной обработки стали
RU2686510C1 (ru) * 2018-11-27 2019-04-29 Акционерное общество "Выксунский металлургический завод" Способ производства стали для изготовления труб
RU2713770C1 (ru) * 2019-05-31 2020-02-07 Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") Способ производства стали с нормируемым содержанием серы

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467167A (en) * 1966-09-19 1969-09-16 Kaiser Ind Corp Process for continuously casting oxidizable metals
GB1206062A (en) * 1967-10-18 1970-09-23 Nippon Kokan Kk Deoxidation method
DE1802991B2 (de) * 1968-10-14 1972-02-17 Süddeutsche Kalkstickstoff-Werke AG, 8223 Trostberg Verwendung einer desoxydationslegierung zur herstellung von zumstranggiessen geeigneten stahlschmelzen
US4035892A (en) * 1972-06-30 1977-07-19 Tohei Ototani Composite calcium clad material for treating molten metals
US4235007A (en) * 1975-07-25 1980-11-25 Hitachi Cable, Ltd. Method of production of a wire-shaped composite addition material
US4057420A (en) * 1976-02-06 1977-11-08 Airco, Inc. Methods for dissolving volatile addition agents in molten metal
US4094666A (en) * 1977-05-24 1978-06-13 Metal Research Corporation Method for refining molten iron and steels
DE2839637A1 (de) * 1977-09-15 1979-03-22 British Steel Corp Verfahren zur erzeugung aufgeschwefelten stahles
US4373967A (en) * 1979-04-09 1983-02-15 Lukens, Inc. Process for making resulfurized machinable steel
JPS5940202B2 (ja) * 1979-12-20 1984-09-28 株式会社神戸製鋼所 極低ｓ１快削鋼の製造方法
JPS56105460A (en) * 1980-01-26 1981-08-21 Nippon Steel Corp Low-carbon low-sulfur free cutting steel and production thereof
FR2476542B1 (de) * 1980-02-26 1983-03-11 Vallourec
US4286984A (en) * 1980-04-03 1981-09-01 Luyckx Leon A Compositions and methods of production of alloy for treatment of liquid metals
JPS57134541A (en) * 1981-02-16 1982-08-19 Kawasaki Steel Corp Manufacture of low-carbon sulfur free cutting steel

Also Published As

Publication number Publication date
EP0123632A1 (de) 1984-10-31
JPH0368099B2 (de) 1991-10-25
EP0123632B2 (de) 1991-01-02
FR2542761A1 (fr) 1984-09-21
JPS59177347A (ja) 1984-10-08
CA1226737A (fr) 1987-09-15
FR2542761B1 (fr) 1987-10-16
ZA841899B (en) 1984-10-31
ATE22705T1 (de) 1986-10-15
ES8504945A1 (es) 1985-04-16
MX160762A (es) 1990-05-09
EP0123632B1 (de) 1986-10-08
ES530575A0 (es) 1985-04-16
US4531972A (en) 1985-07-30

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8339 Ceased/non-payment of the annual fee