A low pressure casting apparatus which has the Yuguchi structure of a low pressure casting apparatus, and the Yuguchi

摘要

as illustrated in fig. 1, a feeder 1 for a low pressure die casting device includes a rod connection piece 11 to be connected to a rod, a molten metal reservoir 12 and a cavity-13 connection piece to be connected to the cavity. The shape of the molten metal reservoir 12 is such that the perimeter of the cross section perpendicular to the flow direction of the molten metal gradually increases towards the cavity connecting piece 13 while the cross-sectional area remains constant.