GB1313662A - Process for deoxidizing rimming steel - Google Patents

Process for deoxidizing rimming steel

Info

Publication number
GB1313662A
GB1313662A GB3014270A GB3014270A GB1313662A GB 1313662 A GB1313662 A GB 1313662A GB 3014270 A GB3014270 A GB 3014270A GB 3014270 A GB3014270 A GB 3014270A GB 1313662 A GB1313662 A GB 1313662A
Authority
GB
United Kingdom
Prior art keywords
powder
stream
steel
deoxidant
june
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
GB3014270A
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.)
KONINKLIJKE HOOGOVENS EN STAAL
Koninklijke Nederlandsche Hoogovens en Staalfabrieken NV
Original Assignee
KONINKLIJKE HOOGOVENS EN STAAL
Koninklijke Nederlandsche Hoogovens en Staalfabrieken NV
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 KONINKLIJKE HOOGOVENS EN STAAL, Koninklijke Nederlandsche Hoogovens en Staalfabrieken NV filed Critical KONINKLIJKE HOOGOVENS EN STAAL
Publication of GB1313662A publication Critical patent/GB1313662A/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
    • C21C7/0068—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by introducing material into a current of streaming metal
    • 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)
  • Multimedia (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Continuous Casting (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

1313662 Deoxidising steel KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN NV 22 June 1970 [23 June 1969] 30142/70 Heading C7D Rimming steel is deoxidised by introducing a powder deoxidant into the pouring stream, at least 50% of the powder passing through a 150 micron sieve but not through a 75 micron sieve and there being substantially no powder of grain size less than 40 micron or greater than 200 microns, the powder being substantially uniformly metered into the stream during at least 70% of the time of filling of the mould. The deoxidant may be aluminium in a stream of air at a rate of 1À9 to 2À2 gm/litre and 700-1200 gm of powder per minute, the gas speed being 40-60 metres/second.
GB3014270A 1969-06-23 1970-06-22 Process for deoxidizing rimming steel Expired GB1313662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL696909598A NL152933B (en) 1969-06-23 1969-06-23 PROCEDURE FOR DESOXYDERING UNRESTING STEEL.

Publications (1)

Publication Number Publication Date
GB1313662A true GB1313662A (en) 1973-04-18

Family

ID=19807272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3014270A Expired GB1313662A (en) 1969-06-23 1970-06-22 Process for deoxidizing rimming steel

Country Status (6)

Country Link
US (1) US3702151A (en)
JP (1) JPS5421293B1 (en)
BE (1) BE752378A (en)
FR (1) FR2049203B1 (en)
GB (1) GB1313662A (en)
NL (1) NL152933B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003078325A2 (en) * 2002-03-18 2003-09-25 Aleksandr Ivanovich Serov Method for producing an aluminium deoxidising agent

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955966A (en) * 1974-03-06 1976-05-11 August Thyssen-Hutte Ag Method for dispensing a fluidizable solid from a pressure vessel
DE2834900C2 (en) * 1978-06-28 1983-10-27 BCIRA, Birmingham Device for introducing powder or granules into molten metal
US4303118A (en) * 1979-07-25 1981-12-01 Georgetown Steel Corporation Apparatus for producing aluminum-deoxidized continuously cast steel
US4391319A (en) * 1979-08-27 1983-07-05 Keystone Consolidated Industries, Inc. Apparatus for introducing elements into molten metal streams and casting in inert atmosphere
USRE31676E (en) * 1982-09-29 1984-09-18 Thyssen Aktiengesellschaft vorm August Thyssen-Hutte AG Method and apparatus for dispensing a fluidizable solid from a pressure vessel
US5129629A (en) * 1990-10-11 1992-07-14 Hickman, Williams & Company Apparatus for feeding material into a molten stream
US6350295B1 (en) 2001-06-22 2002-02-26 Clayton A. Bulan, Jr. Method for densifying aluminum and iron briquettes and adding to steel
IN2014DN08195A (en) * 2012-03-28 2015-05-01 Arcelormittal Investigacion Y Desarrollo Sl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003078325A2 (en) * 2002-03-18 2003-09-25 Aleksandr Ivanovich Serov Method for producing an aluminium deoxidising agent
WO2003078325A3 (en) * 2002-03-18 2004-04-08 Aleksandr Ivanovich Serov Method for producing an aluminium deoxidising agent

Also Published As

Publication number Publication date
BE752378A (en) 1970-12-23
FR2049203B1 (en) 1974-09-20
NL152933B (en) 1977-04-15
US3702151A (en) 1972-11-07
DE2030221A1 (en) 1970-12-23
FR2049203A1 (en) 1971-03-26
NL6909598A (en) 1970-12-28
DE2030221B2 (en) 1975-11-27
JPS5421293B1 (en) 1979-07-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee