GB617144A - Improvements relating to the production of cast iron - Google Patents

Improvements relating to the production of cast iron

Info

Publication number
GB617144A
GB617144A GB18324/43A GB1832443A GB617144A GB 617144 A GB617144 A GB 617144A GB 18324/43 A GB18324/43 A GB 18324/43A GB 1832443 A GB1832443 A GB 1832443A GB 617144 A GB617144 A GB 617144A
Authority
GB
United Kingdom
Prior art keywords
per cent
cast iron
metal
mixture
lead
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
GB18324/43A
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.)
Mond Nickel Co Ltd
Original Assignee
Mond Nickel Co 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 Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Publication of GB617144A publication Critical patent/GB617144A/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

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 method of counteracting the deleterious effect of lead in cast iron produced from metal contaminated with lead in which the molten metal is treated with an alkali metal nitrate or a mixture of an alkali metal nitrate and an alkali metal carbonate. When a mixture is used it preferably contains 30-80 per cent of the nitrate and 20-70 per cent of anhydrous carbonate. Preferably 0.25-4 per cent of mixture, based on the weight of metal treated, is used. The mixture may be added to molten metal in a ladle and after the reaction, the ladle is skimmed and an innoculant is introduced into the metal which is then cast. The treatment of austenitic nickel cast iron is referred to, in particular cast iron containing 12.0-17.5 per cent Ni, 5.0-7.5 per cent Cu, 1.25-6.0 per cent Cr together with carbon, silicon and manganese and small quantities of lead.
GB18324/43A 1942-11-25 1943-11-04 Improvements relating to the production of cast iron Expired GB617144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US617144XA 1942-11-25 1942-11-25

Publications (1)

Publication Number Publication Date
GB617144A true GB617144A (en) 1949-02-02

Family

ID=22037623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18324/43A Expired GB617144A (en) 1942-11-25 1943-11-04 Improvements relating to the production of cast iron

Country Status (1)

Country Link
GB (1) GB617144A (en)

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