Patent ID: 9579719
Date: 2017-02-28
CPC Classifications: B22C,B22D

Claim:
1. A method of casting a cylinder head by directionally solidifying molten metal in a mold, the method comprising: providing the mold, the mold defining a mold cavity and comprising an aperture through which molten metal is delivered to the mold cavity, providing a gate pin insertable into the mold cavity, the gate pin defining an interior cooling passage for circulating a cooling medium therein, positioning the gate pin in the mold cavity such that a distance between the interior cooling passage of the gate pin and the aperture is less than a width of the aperture, transporting molten metal through the aperture and to the mold cavity; and directionally solidifying the molten metal in the mold cavity from a top of the mold to a bottom of the mold by circulating the cooling medium through the interior cooling passage of the gate pin to thereby form the cylinder head.