ES415921A1 - Method of producing ferrous metal of constant properties from heterogeneous mixtures - Google Patents

Method of producing ferrous metal of constant properties from heterogeneous mixtures

Info

Publication number
ES415921A1
ES415921A1 ES415921A ES415921A ES415921A1 ES 415921 A1 ES415921 A1 ES 415921A1 ES 415921 A ES415921 A ES 415921A ES 415921 A ES415921 A ES 415921A ES 415921 A1 ES415921 A1 ES 415921A1
Authority
ES
Spain
Prior art keywords
raw materials
liquidus temperature
temperature
optimum
steel
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
ES415921A
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.)
La Bonvarite
Original Assignee
La Bonvarite
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 La Bonvarite filed Critical La Bonvarite
Publication of ES415921A1 publication Critical patent/ES415921A1/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
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A method of producing ferrous alloys, especially cast irons, having predetermined properties and of predetermined quality from heterogeneous raw materials with corrective additives, the quality of the final product being independent of the raw materials used. In a cupola charged with alternate layers of coke and raw materials and set in operation, ozone is continuously added in small amounts as well as a compound for liberating nitrogen, such as hydrogenated nitrogen compounds and organic nitrogenous compounds, and an halogen, such as methyl chloride or chlorobenzene. Liquidus temperature curves are plotted for given temperature and additions of steel, for obtaining the optimum liquidus temperature. The melting is continued as a function of the desired relationship of carbon equivalent, eutectic temperature and amounts of steel, for example, to be added, and tensile strength thereby maintaining the optimum liquidus temperature.
ES415921A 1972-06-15 1973-06-14 Method of producing ferrous metal of constant properties from heterogeneous mixtures Expired ES415921A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7222936A FR2187919B1 (en) 1972-06-15 1972-06-15

Publications (1)

Publication Number Publication Date
ES415921A1 true ES415921A1 (en) 1976-05-16

Family

ID=9100764

Family Applications (1)

Application Number Title Priority Date Filing Date
ES415921A Expired ES415921A1 (en) 1972-06-15 1973-06-14 Method of producing ferrous metal of constant properties from heterogeneous mixtures

Country Status (9)

Country Link
US (1) US3928022A (en)
AT (1) AT338852B (en)
BE (1) BE801015A (en)
CA (1) CA993193A (en)
DD (1) DD105629A5 (en)
DE (1) DE2329772B2 (en)
ES (1) ES415921A1 (en)
FR (1) FR2187919B1 (en)
GB (1) GB1440246A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033194A1 (en) * 1980-09-03 1982-04-01 Werner Keßl, Gießereibedarf GmbH, 8481 Bärnwinkel METHOD FOR THE HOMOGENIZATION OF CAST IRON MELT AND PRESSELS FOR ITS IMPLEMENTATION
DE3916503C1 (en) * 1989-05-20 1990-12-13 La Bonvarite S.A.R.L., Comines, Fr
US6957172B2 (en) 2000-03-09 2005-10-18 Smartsignal Corporation Complex signal decomposition and modeling
US7233886B2 (en) * 2001-01-19 2007-06-19 Smartsignal Corporation Adaptive modeling of changed states in predictive condition monitoring
JP2005153791A (en) * 2003-11-27 2005-06-16 Koyo Seiko Co Ltd Rack and pinion type steering apparatus and method for manufacturing rack rod
US8275577B2 (en) * 2006-09-19 2012-09-25 Smartsignal Corporation Kernel-based method for detecting boiler tube leaks
US8311774B2 (en) 2006-12-15 2012-11-13 Smartsignal Corporation Robust distance measures for on-line monitoring
JP2016532221A (en) 2013-09-06 2016-10-13 ジーイー・インテリジェント・プラットフォームズ・インコーポレイテッド Apparatus and method for model fitting

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR957046A (en) * 1950-02-13
DE332721C (en) * 1916-01-28 1925-11-23 Rudolf Eberhard Dr Process for treating pig iron, steel or wrought iron with metal compounds
DE446487C (en) * 1925-03-01 1927-07-02 Wilhelm Guenther Dr Process for introducing sulfur-free alkali or alkaline earth salt solutions or their mixtures into smelted coke
US1696603A (en) * 1926-08-26 1928-12-25 George w
US2255016A (en) * 1940-05-13 1941-09-02 Republic Steel Corp Process for treating iron and steel
DE837705C (en) * 1950-07-23 1952-05-02 Buderus Eisenwerk Calcium cyanamide as a desulphurizing agent
AT184201B (en) * 1952-01-09 1955-12-27 Esslingen Maschf Process for the desulfurization of iron in a shaft furnace
US2853376A (en) * 1955-03-16 1958-09-23 Ct Technique Des Ind Fonderie Production of cast iron articles
DE1061350B (en) * 1955-10-06 1959-07-16 Rheinstahl Eisenwerke Gelsenki Process for the production of high-sulfur cast iron with spherical graphite formation
FR1226487A (en) * 1959-01-28 1960-07-13 Cast iron production process
GB914904A (en) * 1959-10-28 1963-01-09 British Oxygen Co Ltd Melting of ferrous metal
DE1183521B (en) * 1962-06-07 1964-12-17 Rheinstahl Huettenwerke Ag Process for cleaning unalloyed and alloyed steels
US3251680A (en) * 1962-08-23 1966-05-17 Fuji Iron & Steel Co Ltd Method and apparatus for treating steels
US3309300A (en) * 1963-08-21 1967-03-14 Welsbach Corp Method for the production of ozone using a plasma jet
FR1407220A (en) * 1964-06-18 1965-07-30 Process for the manufacture of cast irons and steels with nodular graphite, using certain adducts according to different procedures, and steels and cast irons with high mechanical characteristics thus obtained
FR90350E (en) * 1965-10-21 1967-11-24 Air Liquide Process for treating liquid metals, applicable in particular to the production of nodular cast iron
FR1522350A (en) * 1967-03-03 1968-04-26 Du Pont Metal enhancement treatment
US3603571A (en) * 1967-08-11 1971-09-07 Air Reduction Apparatus for melting scrap metal
GB1182959A (en) * 1967-12-08 1970-03-04 Steel Co Of Wales Ltd Improvements in and relating to the Refining of Iron.
US3551139A (en) * 1968-12-20 1970-12-29 Koninklijke Hoogovens En Staal Desulphurizing composition for treating iron melts and method

Also Published As

Publication number Publication date
CA993193A (en) 1976-07-20
FR2187919B1 (en) 1974-10-25
DE2329772A1 (en) 1974-01-10
GB1440246A (en) 1976-06-23
DE2329772B2 (en) 1978-01-19
AT338852B (en) 1977-09-26
DE2329772C3 (en) 1989-01-12
US3928022A (en) 1975-12-23
FR2187919A1 (en) 1974-01-18
BE801015A (en) 1973-12-17
DD105629A5 (en) 1974-05-05
ATA523673A (en) 1977-01-15

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