GB1333518A - Production of steel with a controlled phosphorus content - Google Patents

Production of steel with a controlled phosphorus content

Info

Publication number
GB1333518A
GB1333518A GB2394072A GB2394072A GB1333518A GB 1333518 A GB1333518 A GB 1333518A GB 2394072 A GB2394072 A GB 2394072A GB 2394072 A GB2394072 A GB 2394072A GB 1333518 A GB1333518 A GB 1333518A
Authority
GB
United Kingdom
Prior art keywords
steel
slag
tapping
production
phosphorus content
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
GB2394072A
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.)
Arcelor Luxembourg SA
Original Assignee
Arbed 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
Application filed by Arbed SA filed Critical Arbed SA
Publication of GB1333518A publication Critical patent/GB1333518A/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
    • C21C7/0025—Adding carbon material
    • 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
    • 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

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

1333518 Steel refining ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE S A 22 May 1972 [21 May 1971 9 Nov 1971 20 March 1972] 23940/72 Heading C7D A method for the production of steel with a controlled phosphorus content comprises the preparation of the re-phosphorizing reactions during tapping of steel from a refining furnace by avoiding any decrease in the activity of the oxygen in the melt while the metal in the vessel is intimately mixed with the slag with which it is entrained and no de-oxidizing agent and no alloying agent is added until a time has elapsed for the slag to separate out and form a layer on the surface of the steel in the vessel and sufficient to permit interface reactions between the slag and metal to terminate. A dephosphorising slag mixture containing lime, iron oxide, and a fluidizer may be poured into the teeming ladle in the form of a powder at the beginning of tapping or the mixture may be projected against the tapping jet or blown into the melt by means of a plunging lance.
GB2394072A 1971-05-21 1972-05-22 Production of steel with a controlled phosphorus content Expired GB1333518A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU63209 1971-05-21
LU64230 1971-11-09
LU64996 1972-03-20

Publications (1)

Publication Number Publication Date
GB1333518A true GB1333518A (en) 1973-10-10

Family

ID=27350670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2394072A Expired GB1333518A (en) 1971-05-21 1972-05-22 Production of steel with a controlled phosphorus content

Country Status (9)

Country Link
JP (1) JPS5841323B1 (en)
AT (1) AT336063B (en)
AU (1) AU465462B2 (en)
BE (1) BE783548A (en)
DE (1) DE2223958C3 (en)
FR (1) FR2140022B1 (en)
GB (1) GB1333518A (en)
IT (1) IT966908B (en)
NL (1) NL176588C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54125115A (en) * 1978-03-24 1979-09-28 Japan Steel Works Ltd Rephosphorization preventing method of electric furnace steel

Also Published As

Publication number Publication date
NL176588C (en) 1985-05-01
ATA435972A (en) 1976-08-15
AU465462B2 (en) 1975-09-25
AT336063B (en) 1977-04-12
DE2223958A1 (en) 1973-08-23
BE783548A (en) 1972-11-16
FR2140022A1 (en) 1973-01-12
FR2140022B1 (en) 1977-06-17
DE2223958C3 (en) 1981-04-09
IT966908B (en) 1974-02-20
AU4255172A (en) 1973-11-29
JPS5841323B1 (en) 1983-09-12
DE2223958B2 (en) 1980-08-21
NL7206721A (en) 1972-11-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee