DE3480350D1 - Two stage deoxidation process in steel-making - Google Patents

Two stage deoxidation process in steel-making

Info

Publication number
DE3480350D1
DE3480350D1 DE8484303555T DE3480350T DE3480350D1 DE 3480350 D1 DE3480350 D1 DE 3480350D1 DE 8484303555 T DE8484303555 T DE 8484303555T DE 3480350 T DE3480350 T DE 3480350T DE 3480350 D1 DE3480350 D1 DE 3480350D1
Authority
DE
Germany
Prior art keywords
steel
deoxidation process
making
ladle
stage deoxidation
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
DE8484303555T
Other languages
German (de)
Inventor
Maw-Cheng Shieh
Seng-Jung Chen
Li-Jung Hu
Jin-Luh Su
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.)
China Steel Corp
Original Assignee
China Steel Corp
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 China Steel Corp filed Critical China Steel Corp
Application granted granted Critical
Publication of DE3480350D1 publication Critical patent/DE3480350D1/en
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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • 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

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)

Abstract

A weak pre-deoxidation process (W.P.D. process) for the production of aluminium- and titanium-killed steel. In this process an adequate amount of a silicium-containing ferro-alloy is added to the molten steel during its tapping. The ladle is subsequently transferred to an aluminium wire feeder or to a ladle-injection treating equipment for performing the final stage deoxidation process.
DE8484303555T 1984-05-25 1984-05-25 Two stage deoxidation process in steel-making Expired DE3480350D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP84303555A EP0163784B1 (en) 1984-05-25 1984-05-25 Two stage deoxidation process in steel-making
AU40220/85A AU567212B2 (en) 1984-05-25 1985-03-21 Pre-deoxidation process in steelmaking

Publications (1)

Publication Number Publication Date
DE3480350D1 true DE3480350D1 (en) 1989-12-07

Family

ID=36838654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484303555T Expired DE3480350D1 (en) 1984-05-25 1984-05-25 Two stage deoxidation process in steel-making

Country Status (5)

Country Link
EP (1) EP0163784B1 (en)
AT (1) ATE47727T1 (en)
AU (1) AU567212B2 (en)
DE (1) DE3480350D1 (en)
ZA (1) ZA852015B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2406580B (en) * 2000-06-05 2005-09-07 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same
GB2410252B (en) * 2000-06-05 2005-09-07 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same
GB2381537B (en) * 2000-06-05 2005-09-14 Sanyo Special Steel Co Ltd High-cleanliness steel and process for producing the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE957665C (en) * 1957-01-17 Max-Planck-Institut iur Eisenforschung e V, Dussel dorf Method and device for treating iron and steel baths
US2705196A (en) * 1952-02-20 1955-03-29 Manufacturers Chemical Corp Process for de-oxidizing a molten metal
DE969295C (en) * 1954-01-27 1958-05-22 Hoesch Westfalenhuette Ag Use of steel or mirror iron to pre-deoxidize steel
FR2387292A1 (en) * 1977-04-14 1978-11-10 Siderurgie Fse Inst Rech Two=step deoxidation of steel - by pptn. of oxide(s) followed by slag metal exchange
US4170468A (en) * 1977-12-22 1979-10-09 United States Steel Corporation Deoxidation of steel

Also Published As

Publication number Publication date
AU4022085A (en) 1986-09-25
EP0163784A1 (en) 1985-12-11
EP0163784B1 (en) 1989-11-02
ATE47727T1 (en) 1989-11-15
AU567212B2 (en) 1987-11-12
ZA852015B (en) 1985-09-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee