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Computer-aided control of high-quality cast iron

Pietrowski S., Pisarek B., Gumienny G.

Archives of Foundry Engineering

2008

Vol. 8, iss. 1

101-108

The study discusses the possibility of control of the high-quality grey cast iron and ductile iron using the author's genuine computer programs. The programs have been developed with the help of algorithms based on statistical relationships that are said to exist between the characteristic parameters of DTA curves and properties, like R_p0,2, R_m, A_5 and HB. It has been proved that the spheroidisation and inoculation treatment of cast iron changes in an important way the characteristic parameters of DTA curves, thus enabling a control of these operations as regards their correctness and effectiveness, along with the related changes in microstructure and mechanical properties of cast iron. Moreover, some examples of statistical relationships existing between the typical properties of ductile iron and its control process were given for cases of the melts consistent and inconsistent with the adopted technology. A test stand for control of the high-quality cast iron and respective melts has been schematically depicted.