GB1011178A - Improvements in steel making processes - Google Patents

Improvements in steel making processes

Info

Publication number
GB1011178A
GB1011178A GB18650/64A GB1865064A GB1011178A GB 1011178 A GB1011178 A GB 1011178A GB 18650/64 A GB18650/64 A GB 18650/64A GB 1865064 A GB1865064 A GB 1865064A GB 1011178 A GB1011178 A GB 1011178A
Authority
GB
United Kingdom
Prior art keywords
steel
boron
treated
steel making
making processes
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
GB18650/64A
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.)
Dortmund Hoerder Huettenunion AG
Original Assignee
Dortmund Hoerder Huettenunion 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 Dortmund Hoerder Huettenunion AG filed Critical Dortmund Hoerder Huettenunion AG
Publication of GB1011178A publication Critical patent/GB1011178A/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
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Steel for deep-drawing purposes is tapped in an unkilled or partially killed state and treated by batch degasification to largely eliminate its free oxygen e.g. to a level of 0.005-0.01%. The steel is then treated with aluminium to further reduce its oxygen content to 0.001-0.005%, after which 0.05-1 Kgm. of boron is added per metric ton of steel. The steel is then poured into an ingot mould so that the rate of climb in the mould is at least 80 cm. per minute. The boron may be added in the form of ferroboron. The vacuum treatment may be carried out in apparatus of the type shown in Fig. 1 in which 5 is a container for additives.
GB18650/64A 1963-08-10 1964-05-05 Improvements in steel making processes Expired GB1011178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0042212 1963-08-10

Publications (1)

Publication Number Publication Date
GB1011178A true GB1011178A (en) 1965-11-24

Family

ID=7046668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18650/64A Expired GB1011178A (en) 1963-08-10 1964-05-05 Improvements in steel making processes

Country Status (5)

Country Link
US (1) US3512957A (en)
BE (1) BE650825A (en)
DE (1) DE1608595B1 (en)
GB (1) GB1011178A (en)
LU (1) LU46537A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635696A (en) * 1968-05-21 1972-01-18 Finkl & Sons Co Treatment of molten metal using arc heat and vacuum
US3841861A (en) * 1969-04-15 1974-10-15 Nat Steel Corp Addition agent for deoxidizing and recarburizing degassed steel and method employing the same
US3792999A (en) * 1971-02-05 1974-02-19 Hoerder Huettenunion Ag Method of producing a drawing and deep drawing steel resistant to ageing, particularly for single-coat enamelling
US3793000A (en) * 1972-06-12 1974-02-19 Nat Steel Corp Process for preparing killed low carbon steel and continuously casting the same, and the solidified steel shapes thus produced
DE2321644B2 (en) * 1973-04-28 1976-06-10 PROCESS FOR DESULFURIZING STEEL MELT
US4233065A (en) * 1978-12-08 1980-11-11 Foote Mineral Company Effective boron alloying additive for continuous casting fine grain boron steels
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768892A (en) * 1955-05-26 1956-10-30 Jones & Laughlin Steel Corp Non-aging steel
GB1013190A (en) * 1961-08-12 1965-12-15 Yawata Iron & Steel Co Process for producing a low-temperature tough steel
US3183078A (en) * 1961-09-29 1965-05-11 Yawata Iron & Steel Co Vacuum process for producing a steel for nonageing enameling iron sheets

Also Published As

Publication number Publication date
LU46537A1 (en) 1964-09-15
BE650825A (en) 1964-11-16
US3512957A (en) 1970-05-19
DE1608595B1 (en) 1970-07-30

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