Smart-Keen is engaged in cast iron castings and cast ductile iron castings to achieve handsome quality.As is known to us,it is very important to research on the measurement method for nodularization rate of ductile cast automotive parts and graphite morphology of cast iron that succeed or fail in cast iron castings and cast ductile iron castings by furnace in foundry instead of ordinary cupola.Basically,we usually add a percentage of nodulizer,nodulizing alloy,spheroidal agent or spheroidizer to control the chemical composition before melting metals.And the point is that we melting raw ductile iron by advanced furnace which is frequently used for melting cast steel castings to reach the upper limit of standard nordularization rate,e,g,over 90% ductile iron nodularization