For used molds are composed of six panels contains the core, Demoulding Bushing, gear and rack and the thrust piece, bearing and seal set with a square of the cold-side or "b" side.

The thesis presents a practical die structure with Angle pin and gear shaft and rack for secondary combined inclined down loosing core of die casting hopper bodies.

The thesis presents a practical die structure with angle pin and gear shaft and rack for secondary combined inclined down loosing core of die casting hopper bodies.