What is a mold gate?
A mold gate is a small opening (or orifice) through which the polymer melt enters the mold cavity. Gate design for a particular application includes a selection of the gate type, dimensions, and location. It is dictated by the part and mold design, the part specifications (e.g., appearance, tolerance, concentricity), the type of plastic raw material being molded, the fillers, the type of mold plates, and economic factors (e.g., tooling cost, cycle time, allowable scrap volume). Gate design is of great importance to part quality and productivity.
Single vs. multiple gates
You’ll usually have better success with a single gate unless the length of the melt flow exceeds practical limits. Multiple gates […]