Gas Pressure Effect on Sand Collapse in Kinetic Zone of Lost-Foam Casting

Figure 5

Schematic illustration showing the difference between the Shulyak model and the model suggested in this study. (a) Shulyak’s model, the gas of the kinetic zone applies the pressure only to the grains of sand on the surface of the kinetic zone, and (b) the model proposed in this study, the gas of the kinetic zone simultaneously pushes the sand on the surface and inside.

(a)

(b)