Cast iron inoculant and method for production of cast iron inoculant

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United States of America Patent

PATENT NO 11486011
APP PUB NO 20200399725A1
SERIAL NO

16957286

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having

    between 40 and 80% by weight of Si;0.02-8% by weight of Ca;0-5% by weight of Sr;0-12% by weight of Ba;0-15% by weight of rare earth metal;0-5% by weight of Mg;0.05-5% by weight of Al;0-10% by weight of Mn;0-10% by weight of Ti;0-10 by weight of Zr;the balance being Fe and incidental impurities in the ordinary amount,wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Sb2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Bi2S3, and/or between 0.1 and 5% of one or more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.

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Patent Owner(s)

  • ELKEM ASA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Knustad, Oddvar Kristiansand, NO 5 20

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