Patent ID: 9579720
Date: 2017-02-28
CPC Classifications: B22D

Claim:
1. An injection mold for rotary-type gravity casting, comprising: a molten metal-supply chamber selectively coupled to a die and configured to, during gravity casting along with rotation, supply a pure molten metal into the die while collecting impurities contained in the molten metal and preventing the ingress of the impurities into the die; a molten metal-storage chamber that communicates with the molten metal-supply chamber; a housing having an internal space defined therein; and a dividing wall that divides the internal space into the molten metal-storage chamber and the molten metal-supply chamber, wherein an upper side of the dividing wall is coupled to an inner surface of an upper portion of the housing, wherein a lower side of the dividing wall is spaced at a particular distance from an inner surface of a lower portion of the housing, and wherein the molten metal-storage chamber has a cubic shape, and the molten metal-supply chamber has a half-trapezoidal cross section and the injection mold is connected to a topside of the half-trapezoidal cross section of the molten metal-supply chamber.