| 简介 |
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; 0-10% 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% by weight of particulate rare earth metal oxide(s) and at least one of from 0.1 to 15% of particulate Bi2O3, and/or from 0.1 to 15% of particulate Bi2S3, and/or from 0.1 to 15% of particulate Sb2O3, and/or from 0.1 to 15% of particulate Sb2S3, and/or from 0.1 to 5% of one of more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or from 0.1 to 5% of one of 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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