ES399219A1 - Process for decarburization of steels - Google Patents

Process for decarburization of steels

Info

Publication number
ES399219A1
ES399219A1 ES399219A ES399219A ES399219A1 ES 399219 A1 ES399219 A1 ES 399219A1 ES 399219 A ES399219 A ES 399219A ES 399219 A ES399219 A ES 399219A ES 399219 A1 ES399219 A1 ES 399219A1
Authority
ES
Spain
Prior art keywords
bubbles
carbon
proportion
steel
decarburization
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
ES399219A
Other languages
Spanish (es)
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.)
Sunbeam Oster Co Inc
Original Assignee
Allegheny Ludlum Industries Inc
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 Allegheny Ludlum Industries Inc filed Critical Allegheny Ludlum Industries Inc
Publication of ES399219A1 publication Critical patent/ES399219A1/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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising

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 method of decarburizing molten steel, characterized by the steps that consist in measuring the carbon proportion of said steel, calculating the decarburization rate necessary to achieve the decarburization of said steel from said measured proportion of carbon to a desired final proportion of carbon in a predetermined period of time, introduce oxidizing gas in the form of bubbles of controlled size in said steel melt, according to the following equation ** (see formula) ** Where "ox" is the equivalent proportion of oxygen, "cb" is the desired proportion of carbon, "ceq" is the concentration of carbon balance, "T" is the temperature of the melt in degrees rankin, "H" is the height of rise of bubbles in inches, "p" is the pressure of the bubbles in atmospheres and "d" is the average equivalent diameter of the bubbles controlling the size of said oxidizing gas bubbles and the point of introduction thereof into said steel melt according to the above equation to provide the aforementioned necessary decarburization rate. (Machine-translation by Google Translate, not legally binding)
ES399219A 1971-01-27 1972-01-26 Process for decarburization of steels Expired ES399219A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11032471A 1971-01-27 1971-01-27

Publications (1)

Publication Number Publication Date
ES399219A1 true ES399219A1 (en) 1974-11-16

Family

ID=22332400

Family Applications (1)

Application Number Title Priority Date Filing Date
ES399219A Expired ES399219A1 (en) 1971-01-27 1972-01-26 Process for decarburization of steels

Country Status (9)

Country Link
US (1) US3754895A (en)
AT (1) AT327970B (en)
AU (1) AU465738B2 (en)
BE (1) BE778517A (en)
CA (1) CA959272A (en)
DE (1) DE2202939A1 (en)
ES (1) ES399219A1 (en)
FR (1) FR2123341B1 (en)
IT (1) IT946864B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990887A (en) * 1970-02-06 1976-11-09 Nippon Steel Corporation Cold working steel bar and wire rod produced by continuous casting
US3816720A (en) * 1971-11-01 1974-06-11 Union Carbide Corp Process for the decarburization of molten metal
DE19540490C1 (en) * 1995-10-23 1997-04-10 Mannesmann Ag Process for decarburizing a molten steel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594155A (en) * 1968-10-30 1971-07-20 Allegheny Ludlum Steel Method for dynamically controlling decarburization of steel

Also Published As

Publication number Publication date
AT327970B (en) 1976-02-25
AU465738B2 (en) 1975-10-09
ATA53172A (en) 1975-05-15
IT946864B (en) 1973-05-21
US3754895A (en) 1973-08-28
AU3814172A (en) 1973-07-26
FR2123341B1 (en) 1976-06-11
DE2202939A1 (en) 1972-08-03
FR2123341A1 (en) 1972-09-08
BE778517A (en) 1972-07-26
CA959272A (en) 1974-12-17

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