ES386534A1 - Method of controlling vacuum decarburization - Google Patents

Method of controlling vacuum decarburization

Info

Publication number
ES386534A1
ES386534A1 ES386534A ES386534A ES386534A1 ES 386534 A1 ES386534 A1 ES 386534A1 ES 386534 A ES386534 A ES 386534A ES 386534 A ES386534 A ES 386534A ES 386534 A1 ES386534 A1 ES 386534A1
Authority
ES
Spain
Prior art keywords
container
expected
measurement
composition
gases
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
ES386534A
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 ES386534A1 publication Critical patent/ES386534A1/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

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

Improvements in a method of vacuum decarburization of a molten metal, inside a closed container, in which oxidizing material is introduced into said container and in which it is desired to minimize the oxidation of certain metallic values contained in said metal by establishment of a predetermined ambient pressure inside said container and measurement of the composition and flow rate of the inlet gases, measurement of the composition of the outlet gases to determine the expected rate of carbon separation from said metal, the improvements of which, they comprise the determination of the expected pressure inside the container according to the expected rate of carbon separation from said steel; the measurement of the effective pressure within the container and the adjustment of said composition and flow rates of said gases, and the maintenance of said effective pressure in the container, at least at a level as great as that of the expected pressure . (Machine-translation by Google Translate, not legally binding)
ES386534A 1970-01-05 1970-12-16 Method of controlling vacuum decarburization Expired ES386534A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75170A 1970-01-05 1970-01-05

Publications (1)

Publication Number Publication Date
ES386534A1 true ES386534A1 (en) 1973-11-16

Family

ID=21692872

Family Applications (1)

Application Number Title Priority Date Filing Date
ES386534A Expired ES386534A1 (en) 1970-01-05 1970-12-16 Method of controlling vacuum decarburization

Country Status (10)

Country Link
US (1) US3700429A (en)
JP (1) JPS5543047B1 (en)
AT (1) AT318675B (en)
BE (1) BE760724A (en)
CA (1) CA946163A (en)
DE (1) DE2061122C3 (en)
ES (1) ES386534A1 (en)
FR (1) FR2075921B1 (en)
GB (1) GB1335397A (en)
SE (1) SE392733B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847593A (en) * 1971-07-13 1974-11-12 Centro Speriment Metallurg Process for refining metals, in particular liquid pig iron, in oxygen converters with continuous control of the operative procedure
DE2438122A1 (en) * 1974-08-08 1976-02-19 Witten Edelstahl Vacuum decarburisation of chromium steel melts - avoiding chromium losses by monitoring oxygen content of waste gas
JPS5442324A (en) * 1977-09-10 1979-04-04 Nisshin Steel Co Ltd Control procedure of steel making process using mass spectrometer
JPS569319A (en) * 1979-07-05 1981-01-30 Nippon Steel Corp Vacuum treatment controller for molten steel
FR2472615A1 (en) 1979-11-28 1981-07-03 Merrien Pierre METHOD AND DEVICE FOR AUTOMATING A VACUUM DEGASSING CYCLE OF ALUMINUM ALLOYS
US4541862A (en) * 1982-11-30 1985-09-17 A. Finkl & Sons Co. Ladle steelmaking method and apparatus
DE4243687C1 (en) * 1992-12-18 1994-02-17 Mannesmann Ag Vacuum system, especially for secondary metallurgy
RU2064660C1 (en) * 1993-12-06 1996-07-27 Акционерное общество "Нижнетагильский металлургический комбинат" Device inspecting state of surface of melted metal
US5417739A (en) * 1993-12-30 1995-05-23 Ltv Steel Company, Inc. Method of making high nitrogen content steel
US5865876A (en) * 1995-06-07 1999-02-02 Ltv Steel Company, Inc. Multipurpose lance
US5830259A (en) * 1996-06-25 1998-11-03 Ltv Steel Company, Inc. Preventing skull accumulation on a steelmaking lance
US5885323A (en) * 1997-04-25 1999-03-23 Ltv Steel Company, Inc. Foamy slag process using multi-circuit lance
RU2007126553A (en) * 2004-12-13 2009-01-20 Цитос Биотехнологи Аг (Ch) ORDERED SERIES OF IL-15 ANTIGENES AND THEIR APPLICATION
GB0427832D0 (en) * 2004-12-20 2005-01-19 Boc Group Plc Degassing molten metal
CN115124161A (en) * 2022-05-13 2022-09-30 华能山东发电有限公司烟台发电厂 Method for prolonging resin service cycle of generator rotor cooling water treatment device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1343235A (en) * 1962-12-21 1963-11-15 Nippon Kokan Kk Process for the production of carbonless ferrochrome
US3420657A (en) * 1966-02-14 1969-01-07 Union Carbide Corp Oxygen treatment of chromium alloys

Also Published As

Publication number Publication date
AT318675B (en) 1974-11-11
CA946163A (en) 1974-04-30
US3700429A (en) 1972-10-24
FR2075921B1 (en) 1974-09-20
FR2075921A1 (en) 1971-10-15
DE2061122B2 (en) 1981-07-30
DE2061122A1 (en) 1971-07-15
BE760724A (en) 1971-06-23
JPS5543047B1 (en) 1980-11-04
GB1335397A (en) 1973-10-24
SE392733B (en) 1977-04-18
DE2061122C3 (en) 1982-11-25

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