DE3070892D1 - Process for manufacture of cast iron with vermicular graphite and cast iron so produced - Google Patents

Process for manufacture of cast iron with vermicular graphite and cast iron so produced

Info

Publication number
DE3070892D1
DE3070892D1 DE8080300136T DE3070892T DE3070892D1 DE 3070892 D1 DE3070892 D1 DE 3070892D1 DE 8080300136 T DE8080300136 T DE 8080300136T DE 3070892 T DE3070892 T DE 3070892T DE 3070892 D1 DE3070892 D1 DE 3070892D1
Authority
DE
Germany
Prior art keywords
cast iron
graphite
pouring system
vermicular graphite
production
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
DE8080300136T
Other languages
German (de)
Inventor
Clifford Matthew Dunks
Geoffrey Mannion
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.)
Materials and Methods Ltd
Original Assignee
Materials and Methods Ltd
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 Materials and Methods Ltd filed Critical Materials and Methods Ltd
Application granted granted Critical
Publication of DE3070892D1 publication Critical patent/DE3070892D1/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

A process for the production of cast iron with vermicular graphite in which molten grey cast iron is introduced in the mould cavity of a conventional pouring system which pouring system additionally includes one or more intermediate chambers containing a vermicularizing agent in an amount sufficient to convert the graphite at least in part to vermicular graphite. A nodular graphite inhibitor may be added to the molten grey cast iron before it is introduced in the mould cavity. By a particular selection of process parameters the amount of vermicularizing agent in the resulting cast iron may be closely controlled. The pouring system is known for the production of cast iron with nodular graphite but not the the production of iron with vermicular graphite. A pouring system is shown in the drawing and includes a downsprue (1), an intermediate chamber (2) which contains the vermicularizing agent, a gate (3), a runner bar and an ingate (5).
DE8080300136T 1980-01-15 1980-01-15 Process for manufacture of cast iron with vermicular graphite and cast iron so produced Expired DE3070892D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80300136A EP0032282B1 (en) 1980-01-15 1980-01-15 Process for manufacture of cast iron with vermicular graphite and cast iron so produced

Publications (1)

Publication Number Publication Date
DE3070892D1 true DE3070892D1 (en) 1985-08-29

Family

ID=8187077

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080300136T Expired DE3070892D1 (en) 1980-01-15 1980-01-15 Process for manufacture of cast iron with vermicular graphite and cast iron so produced

Country Status (3)

Country Link
EP (1) EP0032282B1 (en)
AT (1) ATE14455T1 (en)
DE (1) DE3070892D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321312A1 (en) * 1983-06-13 1984-12-13 Klöckner-Humboldt-Deutz AG, 5000 Köln METHOD FOR PRODUCING A CAST IRON WITH VERMICULAR GRAPHITE
CH665851A5 (en) * 1986-03-20 1988-06-15 Fischer Ag Georg METHOD FOR PRODUCING PERLITIC CAST IRON TYPES.
IT1189162B (en) * 1986-06-11 1988-01-28 Oet Metalconsult Srl PROCESS OF DEGASSING, REFINING OR FILTRATION TREATMENT OF METALS OR ALLOYS IN THE LIQUID STATE AND RELATED DEVICE
SE518344C2 (en) 2000-01-26 2002-09-24 Novacast Ab gating
BR0105989B1 (en) * 2001-11-27 2009-08-11 graphically cast iron of high mechanical resistance.
BR102016022690B1 (en) * 2016-09-29 2022-02-08 Tupy S.A. VERMICULAR CAST IRON ALLOY FOR INTERNAL COMBUSTION ENGINE BLOCK AND HEAD

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1069058A (en) * 1965-05-04 1967-05-17 Int Nickel Ltd Cast iron
GB1278265A (en) * 1968-07-17 1972-06-21 Materials & Methods Ltd Improved process for the manufacture of nodular cast iron
GB1511246A (en) * 1974-04-29 1978-05-17 Materials & Methods Ltd Process for the manufacture of cast iron
GB1427445A (en) * 1974-01-15 1976-03-10 British Cast Iron Res Ass Cast iron
GB1515201A (en) * 1976-02-10 1978-06-21 British Cast Iron Res Ass Cast iron
DE2926020A1 (en) * 1979-06-28 1981-01-08 Buderus Ag METHOD FOR PRODUCING A CAST IRON WITH VERMICULAR GRAFIT AND USE OF THE CAST IRON

Also Published As

Publication number Publication date
EP0032282A1 (en) 1981-07-22
EP0032282B1 (en) 1985-07-24
ATE14455T1 (en) 1985-08-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee