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The comparison of selected methods of cast iron spheroidization in industrial conditions

Válek T., Šimon P., Střílková L.

Archives of Foundry Engineering

2012

Vol. 12, iss. 2

89-92

Production of spheroidal graphite cast iron is today quite mastered technology. There are many methods achieving the nodular graphite morphology. Each of these methods have specific characteristics and requirements to technical support, properties and the type of applied modifier. Selection of the spheroidization method is dependent on foundry disposition, production character, economic balance, quality requirements, etc. In case of centrifugally casting the core, which fills body and neck of the roll, is created by ductile iron. Considering the sophisticated production of centrifugally cast rolls for hot rolling mills it is necessary to ensure a high reproducibility and reliability of ductile cast iron production quality in the bulk range of 9-18 t per tapping. These conditions are in the Roll Foundry in Vítkovicke Slevarny, spol. s r.o. provided and verified mastered overpour method and the newly injection of cored wire in the melt.

Clusters and their role in the new knowledge economy

Šimon P.

Applied Computer Science

2005

Vol.1, no 1

43--60

Today the next development leads to building worldwide nets creating the product´s value. We can talk about the idea of clusters. Cluster is building the connections not only among the business subjects but also the other organizations and institutions. The main purpose of that is mutual effect. This article gives more details about the types, definitions and advantages of clusters. Building of clusters started in the Czech Republic in the Pilsen region as well and the feasibility study of the opportunity of clusters building was composed. The own methodology for formulating the feasibility study is described in this article as well.