Freight train adaptor product mold and gating-riser system were produced by expandable polystyrene EPS.With hot melt adhesive

cold glue

glue tape or foam mold by self-locking

the product foam pieces

product foam mold and gating-riser pattern were assembled into an cluster of the integration mold.Then the pattern cluster was dipped into the water-based ceramic coating containing organicenrichment and dried

and then it was put into a monomer type flask single to fill and compact with dry quartz sand to form in negative pressure conditions.Combining with a analysis software

the design of gating system was optimized.Using KYKY-2800Btype scanning electron microscope and X-ray liquid nitrogen refrigeration silicon drift spectrometer

casting defects were measured.Origination of the defects and the countermeasures were presented by observing micro three-dimensional morphology of the inclusion and element energy spectrum detection.