Starter Guide To Injection Molding

26 Oct.,2023

 

Barrel machine component where resin is fed into for heating and mixing; contains the screw

Cavity hollow half of the mold; typically referenced as the A-side

Clamping Force force needed to keep mold closed while mold fills with plastic

Cold Runner channels in the mold that flow material to the part cavity; hardens with part and is removed after ejection

Cooling Channels channels built throughout the mold to control the mold temperature

Core half of the mold that fills the hollow side; typically referenced as the B-side

Cycle Time time it takes to complete one molded part; commonly measured from mold open to next mold open

Ejector Pins installed in the mold to eject the part from the mold when properly cooled

Flash excess material on molded par

Gate entry point for plastic into part cavity

Hot Manifold channel system that runs material to the part cavity and keeps material heated to avoid a runner

Knit Line occurs where different flow fronts of material meet while flowing through the mold

Mold Flow Analysis computer simulation of predicted material flow, fill, and warp in mold to assist in tool and part design

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