Revisiting Some Hot Runner Fundamentals
Mold Making Technology
JANUARY 29, 2020
Very intelligent and experienced people in the plastics industry frequently ask for hot runner basics because although they know that a hot runner is a critical component in the injection molding process, some don’t understand what it does or how it works. Remember those plastic model kits you put together as a kid? The excess plastic that held those tiny components for the model in place is called a cold runner, and it is essentially scrapped plastic.
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