INOCULATING ALLOY BASED ON FERRO-SILICON OR ON SILICON, AND PROCESS FOR THE MANUFACTURE THEREOF

摘要

An inoculant alloy based on ferrosilicon or silicon for the manufacture of cast iron with lamellar, compact or spheroidal graphite is described, this alloy comprising (a) between 0.1 and 10% of barium and/or zirconium, (b) less than 2% of aluminum and (c) 0.3% of calcium. This inoculant alloy is distinguished by particularly good suppression of the precipitation of carbide and by its preparation process which is industrially simple and thus has favorable costs.