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GB1394240A - Refining of metals - Google Patents

Refining of metals

Info

Publication number
GB1394240A
GB1394240A GB3068572A GB3068572A GB1394240A GB 1394240 A GB1394240 A GB 1394240A GB 3068572 A GB3068572 A GB 3068572A GB 3068572 A GB3068572 A GB 3068572A GB 1394240 A GB1394240 A GB 1394240A
Authority
GB
United Kingdom
Prior art keywords
refining
oxygen
standard
rate
reacts
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
GB3068572A
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.)
Centro Sperimentale Metallurgico SpA
Original Assignee
Centro Sperimentale Metallurgico SpA
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 Centro Sperimentale Metallurgico SpA filed Critical Centro Sperimentale Metallurgico SpA
Publication of GB1394240A publication Critical patent/GB1394240A/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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

1394240 Oxygen steel-making CENTRO SPERIMENTALE METALLURGICO SpA 30 June 1972 [13 July 1971] 30685/72 Heading C7D In a process for refining liquid pig-iron in a stationary or rotating vessel by blowing in oxidizing gas, curves are established for standard heats of the variation of a parameter m with time where m is calculated continuously according to the formula:- In the formula K is a constant, A is the instantaneous flow-rate of the oxygen portion which reacts with carbon to form carbon monoxide, B is the instantaneous flow-rate of the oxygen portion which reacts with the carbon monoxide to form carbon dioxide and Q is the instantaneous total flow rate of oxygen to the metal bath, the calculation being made by computer. A tolerance band of permitted variation of m is established around the standard curves. The refining of a non-standard heat is conducted so as to maintain the value of m within the tolerance band of a selected standard curve, the correspondence being maintained by varying the flow rate of oxidizing gas and/or the distance of the delivery head of a refining lance from the bath surface in accordance with the variations of m as calculated by a computer.
GB3068572A 1971-07-13 1972-06-30 Refining of metals Expired GB1394240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5160471 1971-07-13

Publications (1)

Publication Number Publication Date
GB1394240A true GB1394240A (en) 1975-05-14

Family

ID=11275399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3068572A Expired GB1394240A (en) 1971-07-13 1972-06-30 Refining of metals

Country Status (4)

Country Link
US (1) US3847593A (en)
AT (1) AT338845B (en)
DE (1) DE2234204B2 (en)
GB (1) GB1394240A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT346877B (en) * 1976-08-04 1978-11-27 Voest Ag METHOD FOR CONTROLLING A STEEL REFRESHING PROCESS FOR STEELS WITH A C CONTENT IN THE RANGE OF 0.1 TO 0.8 WEIGHT%
DE10122922A1 (en) * 2001-05-11 2002-11-14 Mgp Instr Gmbh Measured data fluctuation suppression comprises feeding signals into filter, subtracting output signal from control signal, and feeding difference signal to comparator
RU2228370C1 (en) * 2003-03-20 2004-05-10 ООО "Сорби стил" Method controlling electric drives of actuating mechanisms of metallurgical machines and aggregates

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1433443B2 (en) * 1964-05-23 1972-01-27 Fried Krupp GmbH, 4300 Essen PROCEDURES FOR MONITORING AND CONTROLLING THE OXYGEN FILLING PROCESS
US3475599A (en) * 1965-03-30 1969-10-28 Leeds & Northrup Co Process measurement system for basic oxygen refining of steel
US3485619A (en) * 1965-10-04 1969-12-23 Beteiligungs & Patentverw Gmbh Method of automatic control and adjustment of oxygen blowing processes
LU50939A1 (en) * 1966-04-20 1966-10-20
US3720404A (en) * 1967-06-27 1973-03-13 Westinghouse Electric Corp System for controlling carbon removal in a basic oxygen furnace
US3598386A (en) * 1967-10-09 1971-08-10 Crucible Steel Co America Apparatus for making steel
US3594155A (en) * 1968-10-30 1971-07-20 Allegheny Ludlum Steel Method for dynamically controlling decarburization of steel
US3700429A (en) * 1970-01-05 1972-10-24 Allegheny Ludlum Steel Method of controlling vacuum decarburization
JPS4929806B1 (en) * 1970-01-28 1974-08-07
US3719469A (en) * 1970-07-22 1973-03-06 Allegheny Ludlum Ind Inc Control for basic oxygen steelmaking furnace

Also Published As

Publication number Publication date
ATA600472A (en) 1977-01-15
AT338845B (en) 1977-09-12
DE2234204A1 (en) 1973-02-01
US3847593A (en) 1974-11-12
DE2234204B2 (en) 1975-11-13

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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