GB670245A - Improvements relating to cast iron - Google Patents

Improvements relating to cast iron

Info

Publication number
GB670245A
GB670245A GB2027748A GB2027748A GB670245A GB 670245 A GB670245 A GB 670245A GB 2027748 A GB2027748 A GB 2027748A GB 2027748 A GB2027748 A GB 2027748A GB 670245 A GB670245 A GB 670245A
Authority
GB
United Kingdom
Prior art keywords
per cent
cast
magnesium
iron
cast iron
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
GB2027748A
Inventor
Harold William George Hignett
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
Priority claimed from GB790947A external-priority patent/GB630070A/en
Application filed by Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Priority to GB2027748A priority Critical patent/GB670245A/en
Priority to DEP49824A priority patent/DE976827C/en
Publication of GB670245A publication Critical patent/GB670245A/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
    • C21C1/08—Manufacture of 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron

Abstract

In a method of producing speroidal form of graphite in alloyed or unalloyed cast iron by means of magnesium retained in the iron as cast, the sulphur content of the molten metal is reduced to less than 0.02 per cent before magnesium is added. The amount of magnesium added may then be such as to retain at least 0.02 per cent. The melt is then inoculated and cast. Basic slag, with or without calcium, may be used as the desulphurizing agent. Treatment of a cast-iron containing 3.6 per cent C. 1.5 per cent Si, 0.6 per cent Mn, 0.1 per cent S, 0.025 per cent P with a desulphurizing slag consisting of 60 per cent lime, 32 per cent sodium silicate and 8 per cent cryolite, is referred to.
GB2027748A 1947-03-22 1948-07-29 Improvements relating to cast iron Expired GB670245A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2027748A GB670245A (en) 1947-03-22 1948-07-29 Improvements relating to cast iron
DEP49824A DE976827C (en) 1947-03-22 1949-07-24 Process for the production of alloyed or unalloyed cast iron with spherulitic graphite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB790947A GB630070A (en) 1947-03-22 1947-03-22 Improvements relating to cast iron
GB2027748A GB670245A (en) 1947-03-22 1948-07-29 Improvements relating to cast iron

Publications (1)

Publication Number Publication Date
GB670245A true GB670245A (en) 1952-04-16

Family

ID=10143320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2027748A Expired GB670245A (en) 1947-03-22 1948-07-29 Improvements relating to cast iron

Country Status (1)

Country Link
GB (1) GB670245A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932567A (en) * 1957-06-06 1960-04-12 Norman R Evans Cast iron and process for making same
US2980530A (en) * 1958-12-11 1961-04-18 Dayton Malleable Iron Co Method of producing nodular iron
AT2158U1 (en) * 1996-09-10 1998-05-25 Holderbank Financ Glarus METHOD FOR DESULFURING PIG IRON

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932567A (en) * 1957-06-06 1960-04-12 Norman R Evans Cast iron and process for making same
US2980530A (en) * 1958-12-11 1961-04-18 Dayton Malleable Iron Co Method of producing nodular iron
AT2158U1 (en) * 1996-09-10 1998-05-25 Holderbank Financ Glarus METHOD FOR DESULFURING PIG IRON

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