GB727401A - Improvements in or relating to cast iron products - Google Patents

Improvements in or relating to cast iron products

Info

Publication number
GB727401A
GB727401A GB15359/51A GB1535951A GB727401A GB 727401 A GB727401 A GB 727401A GB 15359/51 A GB15359/51 A GB 15359/51A GB 1535951 A GB1535951 A GB 1535951A GB 727401 A GB727401 A GB 727401A
Authority
GB
United Kingdom
Prior art keywords
calcium
silicon
agent
titanium
per cent
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
GB15359/51A
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.)
Dayton Malleable Iron Co
Original Assignee
Dayton Malleable Iron Co
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 Dayton Malleable Iron Co filed Critical Dayton Malleable Iron Co
Publication of GB727401A publication Critical patent/GB727401A/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 producing spheroidal graphite cast iron comprises adding to a grey iron mix an effective spheroidal graphite forming proportion of an agent consisting of an alloy or compound of calcium capable of introducing calcium into the mix without formation of calcium carbide. The agent may be calcium silicide or calcium silicide and calcium fluoride, with or without the addition of zirconium, aluminium, or titanium. Alloys such as zirconium-ferro-silicon, titanium-calcium-silicon, and a 50-50 alloy of aluminium and calcium silicon may be used. The agent is best used in a finely-divided state. Reference is also made to the use of an alloy consisting of 6 per cent calcium, 50 per cent silicon, 10 per cent titanium and the balance iron as the agent.
GB15359/51A 1950-06-30 1951-06-28 Improvements in or relating to cast iron products Expired GB727401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US727401XA 1950-06-30 1950-06-30

Publications (1)

Publication Number Publication Date
GB727401A true GB727401A (en) 1955-03-30

Family

ID=22109468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15359/51A Expired GB727401A (en) 1950-06-30 1951-06-28 Improvements in or relating to cast iron products

Country Status (1)

Country Link
GB (1) GB727401A (en)

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