GB721717A - Improvements in cast irons and the manufacture thereof - Google Patents

Improvements in cast irons and the manufacture thereof

Info

Publication number
GB721717A
GB721717A GB21747/52A GB2174752A GB721717A GB 721717 A GB721717 A GB 721717A GB 21747/52 A GB21747/52 A GB 21747/52A GB 2174752 A GB2174752 A GB 2174752A GB 721717 A GB721717 A GB 721717A
Authority
GB
United Kingdom
Prior art keywords
calcium carbide
added
per cent
per
amount
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
GB21747/52A
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.)
Airco Inc
Original Assignee
Air Reduction Co Inc
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 Air Reduction Co Inc filed Critical Air Reduction Co Inc
Publication of GB721717A publication Critical patent/GB721717A/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)
  • Carbon And Carbon Compounds (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

A method of producing up-graded cast iron containing 1.7 to 4.5 per cent carbon, 1-3.5 per cent silicon, and more than 90 per cent iron comprises injecting calcium carbide below the surface of the molten cast iron with a carrier gas in amount not exceeding 2 cubic feet of gas at normal temperature and pressure per pound of carbide, and then casting into moulds. Nodular graphite producing substances, e.g. rare earth metal oxides, magnesium oxide or magnesium, or alloying elements, e.g. chromium, molybdenum, vanadium or manganese may be added with the calcium carbide. The amount of calcium carbide added may be 5-75 lbs. per ton of metal, and may be sufficient to produce at least some nodular graphite when added alone. U.S.A. Specification 2,577,764 is referred to.
GB21747/52A 1951-09-12 1952-08-29 Improvements in cast irons and the manufacture thereof Expired GB721717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US721717XA 1951-09-12 1951-09-12

Publications (1)

Publication Number Publication Date
GB721717A true GB721717A (en) 1955-01-12

Family

ID=22106023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21747/52A Expired GB721717A (en) 1951-09-12 1952-08-29 Improvements in cast irons and the manufacture thereof

Country Status (1)

Country Link
GB (1) GB721717A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889222A (en) * 1953-12-30 1959-06-02 Union Carbide Corp Process for the production of nodular cast iron
US2970902A (en) * 1956-01-17 1961-02-07 Int Harvester Co Ductile iron
US3055756A (en) * 1958-12-15 1962-09-25 Crane Co Yttrium containing ferrous products and methods for preparing same
US3125442A (en) * 1964-03-17 Buctile iron casting
US3375103A (en) * 1963-12-04 1968-03-26 Von Roll Ag Alloyed cast iron
DE1284433B (en) * 1959-07-03 1968-12-05 Res Inst Iron Steel Master alloy on the basis of Fe-Si-Ca for the production of cast iron with spheroidal graphite
FR2007780A1 (en) * 1968-05-03 1970-01-09 Bremanger Smelteverk
US4236914A (en) * 1979-08-15 1980-12-02 Minoru Kitamura Desulfurization composition for molten pig iron

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125442A (en) * 1964-03-17 Buctile iron casting
US2889222A (en) * 1953-12-30 1959-06-02 Union Carbide Corp Process for the production of nodular cast iron
US2970902A (en) * 1956-01-17 1961-02-07 Int Harvester Co Ductile iron
US3055756A (en) * 1958-12-15 1962-09-25 Crane Co Yttrium containing ferrous products and methods for preparing same
DE1284433B (en) * 1959-07-03 1968-12-05 Res Inst Iron Steel Master alloy on the basis of Fe-Si-Ca for the production of cast iron with spheroidal graphite
US3375103A (en) * 1963-12-04 1968-03-26 Von Roll Ag Alloyed cast iron
FR2007780A1 (en) * 1968-05-03 1970-01-09 Bremanger Smelteverk
US4236914A (en) * 1979-08-15 1980-12-02 Minoru Kitamura Desulfurization composition for molten pig iron

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