| abstract |
The present invention relates to an inoculant for the production of cast iron containing spheroidal graphite, a method for producing such an inoculant and the use of such an inoculant, wherein the inoculant comprises a particulate ferrosilicon alloy, the particulate ferro The silicon alloy contains 40 to 80% by weight of Si; 0.02 to 8% by weight of Ca; 0-5% by weight of Sr; From 0 to 12% Ba; 0-15% by weight of rare earth metals; Mg from 0 to 5% by weight; 0.05 to 5% Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10% by weight of Zr; Fe as the balance and accidental impurities present in the usual amount, the inoculant, based on the total weight of the inoculant, 0.1 to 15% by weight of particulate rare earth metal oxide(s), and 0.1 to 15 % Of particulates Bi 2 O 3 , and/or 0.1 to 15% of particulates Bi 2 S 3 , and/or 0.1 to 15% of particulates Sb 2 O 3 , and/or 0.1 to 15% of particulates Sb 2 S 3 , And/or 0.1 to 5% of particulate Fe 3 O 4 , Fe 2 O 3 , FeO, or one or more of a mixture thereof, and/or 0.1 to 5% of particulate FeS, FeS 2 , Fe 3 S 4 , or these It further contains at least one of one or more of a mixture of. |