In this post I will explain injection molding runner components of mold part. There are 4 main items of runner components: runner lock pin, runner lock pin lock, runner lock pin bushing, ejector runner. It is different functions between the two mold plate and three plate mold, but there are several components that can be […]
plastic injection molding
There are 6 steps in plastics injection molding process steps as preparation, setup, mold closing, injection, cooling, mold opening and remove product. I will explain these process in this post.
In plastics injection molding, parting line is the dividing line on sample that separate cavity and core. Product will change draft angle direction at parting line. Flash trouble always appear at parting line. Sometimes, to improve flash we will make step at parting line. For this changing, you have to meet designer because components use […]
Runner system connects the sprue via the gate with the cavity. It has to distribute molten plastics in the same condition, pressure and time for all cavities.
Gate is the connector between runner and cavity. Gate design following : location, number, geometry, dimension,… is very important for appearance, production efficiency, dimension accuracy.