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

<div>Schematic illustration of lost-foam casting process. 1, expanded polystyrene pattern; 2, kinetic zone; 3, molten metal; 4, flask; 5, dried sand; 6, pouring basin; <i>P</i>, gas pressure in kinetic zone; <i>z</i>, height from kinetic zone to sand; <i>P</i><sub>V</sub>, vertical sand pressure; <i>P</i><sub>H,</sub> horizontal sand pressure; GAZ, gas affected zone.</div>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: Gas Pressure Effect on Sand Collapse in Kinetic Zone of Lost-Foam Casting 