The final transition point in a gating system that connects the runner to the actual part cavity. Its size and shape control the velocity and flow rate of the molten metal as it fills the mold. Proper gate design prevents turbulence, sand erosion, and premature freezing of the metal.
Heard on the job
The casting has shrink defects near the flange because the gate froze off too early to feed it.
Also heard as
- tedge
Do not mix it up with
- Sprue: The sprue is the vertical drop from the pouring cup down into the mold; the gate is the final horizontal entry into the cavity itself.