铸铁接种剂及铸铁接种剂之制造方法

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The present invention relates to an inoculant for the manufacture of cast iron with spheroidal graphite, said inoculant comprises a particulate ferrosilicon alloy consisting of 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 said inoculant additionally contains, by weight, based on the total weight of inoculant : 0.1 to 15% of particulate Bi2S3, 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 Sb2S3, and/or between 0.1 and 5% 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.