Study of Water Simulation on Cavity Filling of Aluminum Alloy Low-pressure Casting
Based on the theory of similarity criterion,the simulation experiment on cavity filling of aluminum liquid in low-pressure casting was done.The air pressure was exerted on the liquid surface,at the same time the die cavity was vacuumized.The experiment results indicate that the antrorse liquid surface keeps to horizontality and advances along the vertical direction.When the vacuum degree is-0.02 MPa and the applying pressure is 0.02 MPa at the same time,they are the best technical parameters.And the simulated results are compared with the archetypal results,both have favorable consistency.