Abstract: In this paper, the
CASTOR large-scale ductile iron cask made in Federal Republic of
Germany was taken as an object of our study. A cubic simulative
casting 400 mm in length solidified along one dimension was
investigated. According to various cooling one dimension was
investigated. According to various cooling conditions, we
determined the solidification curves in various positions and
dynamic solidification curves in the casting and analyzed the
solidification characteristics of the heavy ductile iron casing
and the conditions of its formation. Meanwhile we discussed the
law of variation of casting thickness, solidification time and
graphite morphology. For ensuring the quality of casting, this
paper provides a reliable basis with respect to cooling
condition.
Key words:
Heavy ductile iron casting Solidification characteristic Chunky graphite
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