SHAPING OF DUCTILE CAST IRON DEDICATED FOR SLAG LADLE

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Andrzej Szczęsny
Dariusz Kopyciński
Edward Guzik
Grzegorz Soból
Krzysztof Piotrowski
Paweł Bednarczyk
Władysław Paul

Abstract

In industrial conditions, ductile iron was prepared and two molds were made, in which a 600mm thick plate was formed. Filling system for one mold was placed vertically and for the second -horizontally. In order to obtain cooling curves, "S" type thermocouples have been placed in the mold. After cooling the casts, the samples from the fixing points of thermocouples were cut by the trepanning method. In the "vertical" cast sample shrinkage porosity was observed, while in the "horizontal" cast sample no porosity was detected. A significant difference in the recorded temperature in the center of the casts was discovered, indicating a defect in "vertical" cast.


 

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Technical papers