A submerged-gate casting method

The sprue gate is submerged to a certain distance below the surface of the molten metal in the mold during the filling process. This is a digital casting technology, which is highly integrated with CAD/CAE, process detection and control technology. The 3D models of the casting (corresponding to the mold cavity) and the ladle are cut into slices to obtain the sectional information for the iterative calculation. The relative displacement of the gate is calculated by iteration. The ladle or mold is moved up and down by the elevator to ensure that the gate submerges below the molten metal surface to a specified distance. It can be seen from the numerical simulation and experimental results that this method can avoid the need for a complex filling system, which is convenient for designing, manufacturing and assembling the mold. Additionally, it has advantages of stable filling and full feeding.