Core Gas Defects

FLOW-3D Cast‘s Core Gas model allows users to monitor the progress of resin binder degradation and core gas evolution in sand cores due to heating by the metal so that they can eliminate core gas defects in their castings. The loss of binder corresponds to the loss of core strength. When monitored together with filling and freezing of the casting, the model is also a predictor of potential gas blows into the molten metal. This potential for gas defects is computed together with core gas flow and core gas pressures and is further discussed in the Modeling Capabilities section.

Core gas casting defects

Binder loss in two internal cores of a valve iron casting

Core Gas Defect Videos