Review of Study on Oolitization of Used-clay-sand

The mechanism and definition of the oolitization phenomenon and its impact on the property of the reclaimed sand were introduced,with reviewing the previous works of the oolitization of molding sand.Thermally reclamation sands for core-molding were discussed as well.During core-molding process using thermally-reclamation-sands,the notion of controlling the oolitization rate was proposed.