GB1440246A - Method of producing cast irons of predetermined properties from heterogeneous raw materials - Google Patents

Method of producing cast irons of predetermined properties from heterogeneous raw materials

Info

Publication number
GB1440246A
GB1440246A GB2834373A GB2834373A GB1440246A GB 1440246 A GB1440246 A GB 1440246A GB 2834373 A GB2834373 A GB 2834373A GB 2834373 A GB2834373 A GB 2834373A GB 1440246 A GB1440246 A GB 1440246A
Authority
GB
United Kingdom
Prior art keywords
liberating
iron
produced
compound
june
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
GB2834373A
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 GB1440246A publication Critical patent/GB1440246A/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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1440246 Cast iron production LA BONVARITE 14 June 1973 [15 June 1972] 28343/73 Heading C7D Cast iron is produced from a heterogeneous charge including iron and/or steel by charging alternate layers of raw material and fuel e.g. coke into a cupola furnace to which are introduced ozone and at least compound liberating nitrogen and a halogen at the melting temperature. Suitable nitrogen-liberating compounds are ammonia, hydrazine or an organic compound such as nitrobenzene, while the halogen-liberating compound may be methyl chloride chlorobenzene or fluorobenzene, or other solvent for a distillation produced of coal, wood or natural resin, which product may be introduced into the furnace to increase the carbon content of the iron. Alternative solvents are isocyclohexane, toluol or seylol. Alternatively where carbon content is to be reduced a substance liberating oxygen at the melting temperature may be introduced. In the melting process a series of graphs are first produced relating charge composition to the liquidus temperature as a function of eutectic point and these curves are then used to provide iron having a liquidus temperature corresponding to the desired tensile strength.
GB2834373A 1972-06-15 1973-06-14 Method of producing cast irons of predetermined properties from heterogeneous raw materials Expired GB1440246A (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
GB1440246A true GB1440246A (en) 1976-06-23

Family

ID=9100764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2834373A Expired GB1440246A (en) 1972-06-15 1973-06-14 Method of producing cast irons of predetermined properties from heterogeneous raw materials

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) DE2329772C3 (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
WO2015034512A2 (en) 2013-09-06 2015-03-12 Ge Intelligent Platforms, Inc. Apparatus and method for model adaptation

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
BE801015A (en) 1973-12-17
DE2329772B2 (en) 1978-01-19
FR2187919A1 (en) 1974-01-18
AT338852B (en) 1977-09-26
FR2187919B1 (en) 1974-10-25
DE2329772C3 (en) 1989-01-12
DD105629A5 (en) 1974-05-05
CA993193A (en) 1976-07-20
US3928022A (en) 1975-12-23
DE2329772A1 (en) 1974-01-10
ES415921A1 (en) 1976-05-16
ATA523673A (en) 1977-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930613