A corresponding gating system for die casting die can be designed based on characteristics of different component structure

such as ring pouring runner

center expanding runner

outer runner

collection wastway and other running gating system. However

all these gating systems have demerits. The general principle of designing gating system for the die casting die is that the liquid aluminum alloy in the mould cavity flows smoothly as possible to avoid direct impaction against core

and the parting surface should not be closed at once

which is beneficial to transferring of the pressure to keep good filling and exhaustion.