Agent for the treatment of cast iron melts
AssigneeSKW Trostberg Aktiengesellschaft
InventorsKarl-Josef Reifferscheid, Dieter H. Gumbinger
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Abstract
Disclosed is an agent based on ferrosilicon for the treatment of cast iron melts before treatment with spheroidal graphite-inducing elements, especially magnesium, wherein, as additive elements, the agent additionally contains calcium, aluminum, manganese, zirconium, cerium and lanthanum. The content of iron plus silicon is at least 75% by weight with reference to the weight of all components and the elements zirconium, cerium and manganese additively are at least 5% by weight of the agent. The present invention also provides a process for the production of this agent, as well as a process for treating cast iron melts therewith.
Claims21
An agent for the treatment of cast iron melts before the treatment with spheroidal graphite-inducing elements, comprising:
- ferrosilicon, calcium, aluminum, manganese, zirconium, cerium and lanthanum, wherein the content of iron plus silicon of the agent is at least 75 wt.-% with reference to the weight of all components and the elements zirconium, cerium and manganese additively constitute at least 5 wt.-%.
Dependencies are inferred from the claim text.